eventespresso / event-espresso-core

core/db_classes/EE_Price.class.php

Indentation +286 added lines, -286 removed lines

@@ -10,290 +10,290 @@
 class EE_Price extends EE_Soft_Delete_Base_Class
 {
 
-    /**
-     *
-     * @param array  $props_n_values          incoming values
-     * @param string $timezone                incoming timezone (if not set the timezone set for the website will be
-     *                                        used.)
-     * @param array  $date_formats            incoming date_formats in an array where the first value is the
-     *                                        date_format and the second value is the time format
-     * @return EE_Attendee
-     */
-    public static function new_instance($props_n_values = array(), $timezone = null, $date_formats = array())
-    {
-        $has_object = parent::_check_for_object($props_n_values, __CLASS__, $timezone, $date_formats);
-        return $has_object ? $has_object : new self($props_n_values, false, $timezone, $date_formats);
-    }
-
-
-    /**
-     * @param array  $props_n_values  incoming values from the database
-     * @param string $timezone        incoming timezone as set by the model.  If not set the timezone for
-     *                                the website will be used.
-     * @return EE_Attendee
-     */
-    public static function new_instance_from_db($props_n_values = array(), $timezone = null)
-    {
-        return new self($props_n_values, true, $timezone);
-    }
-
-
-    /**
-     *        Set Price type ID
-     *
-     * @access        public
-     * @param        int $PRT_ID
-     */
-    public function set_type($PRT_ID = 0)
-    {
-        $this->set('PRT_ID', $PRT_ID);
-    }
-
-
-    /**
-     *        Set Price Amount
-     *
-     * @access        public
-     * @param        float $PRC_amount
-     */
-    public function set_amount($PRC_amount = 0.00)
-    {
-        $this->set('PRC_amount', $PRC_amount);
-    }
-
-
-    /**
-     *        Set Price Name
-     *
-     * @access        public
-     * @param        string $PRC_name
-     */
-    public function set_name($PRC_name = '')
-    {
-        $this->set('PRC_name', $PRC_name);
-    }
-
-
-    /**
-     *        Set Price Description
-     *
-     * @access        public
-     * @param        string $PRC_desc
-     */
-    public function set_description($PRC_desc = '')
-    {
-        $this->Set('PRC_desc', $PRC_desc);
-    }
-
-
-    /**
-     *        set is_default
-     *
-     * @access        public
-     * @param        bool $PRC_is_default
-     */
-    public function set_is_default($PRC_is_default = false)
-    {
-        $this->set('PRC_is_default', $PRC_is_default);
-    }
-
-
-    /**
-     *        set deleted
-     *
-     * @access        public
-     * @param        bool $PRC_deleted
-     */
-    public function set_deleted($PRC_deleted = null)
-    {
-        $this->set('PRC_deleted', $PRC_deleted);
-    }
-
-
-    /**
-     *    get Price type
-     *
-     * @access        public
-     * @return        int
-     */
-    public function type()
-    {
-        return $this->get('PRT_ID');
-    }
-
-
-    /**
-     *    get Price Amount
-     *
-     * @access        public
-     * @return        float
-     */
-    public function amount()
-    {
-        return $this->get('PRC_amount');
-    }
-
-
-    /**
-     *    get Price Name
-     *
-     * @access        public
-     * @return        string
-     */
-    public function name()
-    {
-        return $this->get('PRC_name');
-    }
-
-
-    /**
-     *    get Price description
-     *
-     * @access        public
-     * @return        string
-     */
-    public function desc()
-    {
-        return $this->get('PRC_desc');
-    }
-
-
-    /**
-     *    get overrides
-     *
-     * @access        public
-     * @return        int
-     */
-    public function overrides()
-    {
-        return $this->get('PRC_overrides');
-    }
-
-
-    /**
-     *    get order
-     *
-     * @access        public
-     * @return        int
-     */
-    public function order()
-    {
-        return $this->get('PRC_order');
-    }
-
-
-    /**
-     * get the author of the price
-     *
-     * @since 4.5.0
-     *
-     * @return int
-     */
-    public function wp_user()
-    {
-        return $this->get('PRC_wp_user');
-    }
-
-
-    /**
-     *    get is_default
-     *
-     * @access        public
-     * @return        bool
-     */
-    public function is_default()
-    {
-        return $this->get('PRC_is_default');
-    }
-
-
-    /**
-     *    get deleted
-     *
-     * @access        public
-     * @return        bool
-     */
-    public function deleted()
-    {
-        return $this->get('PRC_deleted');
-    }
-
-
-    /**
-     * @return bool
-     */
-    public function parent()
-    {
-        return $this->get('PRC_parent');
-    }
-
-
-    // some helper methods for getting info on the price_type for this price
-
-    /**
-     * return whether the price is a base price or not
-     *
-     * @return boolean
-     */
-    public function is_base_price()
-    {
-        $price_type = $this->type_obj();
-        return $price_type->base_type() === 1;
-    }
-
-
-    /**
-     *
-     * @return EE_Price_Type
-     */
-    public function type_obj()
-    {
-        return $this->get_first_related('Price_Type');
-    }
-
-
-    /**
-     * Simply indicates whether this price increases or decreases the total
-     *
-     * @return boolean true = discount, otherwise adds to the total
-     */
-    public function is_discount()
-    {
-        $price_type = $this->type_obj();
-        return $price_type->is_discount();
-    }
-
-
-    /**
-     * whether the price is a percentage or not
-     *
-     * @return boolean
-     */
-    public function is_percent()
-    {
-        $price_type = $this->type_obj();
-        return $price_type->get('PRT_is_percent');
-    }
-
-
-    /**
-     * return pretty price dependant on whether its a dollar or percent.
-     *
-     * @since 4.4.0
-     *
-     * @return string
-     */
-    public function pretty_price()
-    {
-        return ! $this->is_percent() ? $this->get_pretty('PRC_amount') : $this->get('PRC_amount') . '%';
-    }
-
-
-    /**
-     * @return mixed
-     */
-    public function get_price_without_currency_symbol()
-    {
-        return str_replace(EE_Registry::instance()->CFG->currency->sign, '', $this->get_pretty('PRC_amount'));
-    }
+	/**
+	 *
+	 * @param array  $props_n_values          incoming values
+	 * @param string $timezone                incoming timezone (if not set the timezone set for the website will be
+	 *                                        used.)
+	 * @param array  $date_formats            incoming date_formats in an array where the first value is the
+	 *                                        date_format and the second value is the time format
+	 * @return EE_Attendee
+	 */
+	public static function new_instance($props_n_values = array(), $timezone = null, $date_formats = array())
+	{
+		$has_object = parent::_check_for_object($props_n_values, __CLASS__, $timezone, $date_formats);
+		return $has_object ? $has_object : new self($props_n_values, false, $timezone, $date_formats);
+	}
+
+
+	/**
+	 * @param array  $props_n_values  incoming values from the database
+	 * @param string $timezone        incoming timezone as set by the model.  If not set the timezone for
+	 *                                the website will be used.
+	 * @return EE_Attendee
+	 */
+	public static function new_instance_from_db($props_n_values = array(), $timezone = null)
+	{
+		return new self($props_n_values, true, $timezone);
+	}
+
+
+	/**
+	 *        Set Price type ID
+	 *
+	 * @access        public
+	 * @param        int $PRT_ID
+	 */
+	public function set_type($PRT_ID = 0)
+	{
+		$this->set('PRT_ID', $PRT_ID);
+	}
+
+
+	/**
+	 *        Set Price Amount
+	 *
+	 * @access        public
+	 * @param        float $PRC_amount
+	 */
+	public function set_amount($PRC_amount = 0.00)
+	{
+		$this->set('PRC_amount', $PRC_amount);
+	}
+
+
+	/**
+	 *        Set Price Name
+	 *
+	 * @access        public
+	 * @param        string $PRC_name
+	 */
+	public function set_name($PRC_name = '')
+	{
+		$this->set('PRC_name', $PRC_name);
+	}
+
+
+	/**
+	 *        Set Price Description
+	 *
+	 * @access        public
+	 * @param        string $PRC_desc
+	 */
+	public function set_description($PRC_desc = '')
+	{
+		$this->Set('PRC_desc', $PRC_desc);
+	}
+
+
+	/**
+	 *        set is_default
+	 *
+	 * @access        public
+	 * @param        bool $PRC_is_default
+	 */
+	public function set_is_default($PRC_is_default = false)
+	{
+		$this->set('PRC_is_default', $PRC_is_default);
+	}
+
+
+	/**
+	 *        set deleted
+	 *
+	 * @access        public
+	 * @param        bool $PRC_deleted
+	 */
+	public function set_deleted($PRC_deleted = null)
+	{
+		$this->set('PRC_deleted', $PRC_deleted);
+	}
+
+
+	/**
+	 *    get Price type
+	 *
+	 * @access        public
+	 * @return        int
+	 */
+	public function type()
+	{
+		return $this->get('PRT_ID');
+	}
+
+
+	/**
+	 *    get Price Amount
+	 *
+	 * @access        public
+	 * @return        float
+	 */
+	public function amount()
+	{
+		return $this->get('PRC_amount');
+	}
+
+
+	/**
+	 *    get Price Name
+	 *
+	 * @access        public
+	 * @return        string
+	 */
+	public function name()
+	{
+		return $this->get('PRC_name');
+	}
+
+
+	/**
+	 *    get Price description
+	 *
+	 * @access        public
+	 * @return        string
+	 */
+	public function desc()
+	{
+		return $this->get('PRC_desc');
+	}
+
+
+	/**
+	 *    get overrides
+	 *
+	 * @access        public
+	 * @return        int
+	 */
+	public function overrides()
+	{
+		return $this->get('PRC_overrides');
+	}
+
+
+	/**
+	 *    get order
+	 *
+	 * @access        public
+	 * @return        int
+	 */
+	public function order()
+	{
+		return $this->get('PRC_order');
+	}
+
+
+	/**
+	 * get the author of the price
+	 *
+	 * @since 4.5.0
+	 *
+	 * @return int
+	 */
+	public function wp_user()
+	{
+		return $this->get('PRC_wp_user');
+	}
+
+
+	/**
+	 *    get is_default
+	 *
+	 * @access        public
+	 * @return        bool
+	 */
+	public function is_default()
+	{
+		return $this->get('PRC_is_default');
+	}
+
+
+	/**
+	 *    get deleted
+	 *
+	 * @access        public
+	 * @return        bool
+	 */
+	public function deleted()
+	{
+		return $this->get('PRC_deleted');
+	}
+
+
+	/**
+	 * @return bool
+	 */
+	public function parent()
+	{
+		return $this->get('PRC_parent');
+	}
+
+
+	// some helper methods for getting info on the price_type for this price
+
+	/**
+	 * return whether the price is a base price or not
+	 *
+	 * @return boolean
+	 */
+	public function is_base_price()
+	{
+		$price_type = $this->type_obj();
+		return $price_type->base_type() === 1;
+	}
+
+
+	/**
+	 *
+	 * @return EE_Price_Type
+	 */
+	public function type_obj()
+	{
+		return $this->get_first_related('Price_Type');
+	}
+
+
+	/**
+	 * Simply indicates whether this price increases or decreases the total
+	 *
+	 * @return boolean true = discount, otherwise adds to the total
+	 */
+	public function is_discount()
+	{
+		$price_type = $this->type_obj();
+		return $price_type->is_discount();
+	}
+
+
+	/**
+	 * whether the price is a percentage or not
+	 *
+	 * @return boolean
+	 */
+	public function is_percent()
+	{
+		$price_type = $this->type_obj();
+		return $price_type->get('PRT_is_percent');
+	}
+
+
+	/**
+	 * return pretty price dependant on whether its a dollar or percent.
+	 *
+	 * @since 4.4.0
+	 *
+	 * @return string
+	 */
+	public function pretty_price()
+	{
+		return ! $this->is_percent() ? $this->get_pretty('PRC_amount') : $this->get('PRC_amount') . '%';
+	}
+
+
+	/**
+	 * @return mixed
+	 */
+	public function get_price_without_currency_symbol()
+	{
+		return str_replace(EE_Registry::instance()->CFG->currency->sign, '', $this->get_pretty('PRC_amount'));
+	}
 }

Spacing +1 added lines, -1 removed lines

@@ -285,7 +285,7 @@
      */
     public function pretty_price()
     {
-        return ! $this->is_percent() ? $this->get_pretty('PRC_amount') : $this->get('PRC_amount') . '%';
+        return ! $this->is_percent() ? $this->get_pretty('PRC_amount') : $this->get('PRC_amount').'%';
     }
 
 

core/db_classes/EE_Import.class.php

Indentation +950 added lines, -950 removed lines

@@ -14,91 +14,91 @@ 
 class EE_Import implements ResettableInterface
 {
 
-    const do_insert = 'insert';
-    const do_update = 'update';
-    const do_nothing = 'nothing';
-
-
-    // instance of the EE_Import object
-    private static $_instance = null;
-
-    private static $_csv_array = array();
-
-    /**
-     *
-     * @var array of model names
-     */
-    private static $_model_list = array();
-
-    private static $_columns_to_save = array();
-
-    protected $_total_inserts = 0;
-    protected $_total_updates = 0;
-    protected $_total_insert_errors = 0;
-    protected $_total_update_errors = 0;
-
-
-    /**
-     *        private constructor to prevent direct creation
-     *
-     * @Constructor
-     * @access private
-     * @return void
-     */
-    private function __construct()
-    {
-        $this->_total_inserts = 0;
-        $this->_total_updates = 0;
-        $this->_total_insert_errors = 0;
-        $this->_total_update_errors = 0;
-    }
-
-
-    /**
-     *    @ singleton method used to instantiate class object
-     *    @ access public
-     *
-     * @return EE_Import
-     */
-    public static function instance()
-    {
-        // check if class object is instantiated
-        if (self::$_instance === null or ! is_object(self::$_instance) or ! (self::$_instance instanceof EE_Import)) {
-            self::$_instance = new self();
-        }
-        return self::$_instance;
-    }
-
-    /**
-     * Resets the importer
-     *
-     * @return EE_Import
-     */
-    public static function reset()
-    {
-        self::$_instance = null;
-        return self::instance();
-    }
-
-
-    /**
-     *    @ generates HTML for a file upload input and form
-     *    @ access    public
-     *
-     * @param    string $title  - heading for the form
-     * @param    string $intro  - additional text explaing what to do
-     * @param    string $page   - EE Admin page to direct form to - in the form "espresso_{pageslug}"
-     * @param    string $action - EE Admin page route array "action" that form will direct to
-     * @param    string $type   - type of file to import
-     *                          @ return    string
-     */
-    public function upload_form($title, $intro, $form_url, $action, $type)
-    {
-
-        $form_url = EE_Admin_Page::add_query_args_and_nonce(array('action' => $action), $form_url);
-
-        ob_start();
-        ?>
+	const do_insert = 'insert';
+	const do_update = 'update';
+	const do_nothing = 'nothing';
+
+
+	// instance of the EE_Import object
+	private static $_instance = null;
+
+	private static $_csv_array = array();
+
+	/**
+	 *
+	 * @var array of model names
+	 */
+	private static $_model_list = array();
+
+	private static $_columns_to_save = array();
+
+	protected $_total_inserts = 0;
+	protected $_total_updates = 0;
+	protected $_total_insert_errors = 0;
+	protected $_total_update_errors = 0;
+
+
+	/**
+	 *        private constructor to prevent direct creation
+	 *
+	 * @Constructor
+	 * @access private
+	 * @return void
+	 */
+	private function __construct()
+	{
+		$this->_total_inserts = 0;
+		$this->_total_updates = 0;
+		$this->_total_insert_errors = 0;
+		$this->_total_update_errors = 0;
+	}
+
+
+	/**
+	 *    @ singleton method used to instantiate class object
+	 *    @ access public
+	 *
+	 * @return EE_Import
+	 */
+	public static function instance()
+	{
+		// check if class object is instantiated
+		if (self::$_instance === null or ! is_object(self::$_instance) or ! (self::$_instance instanceof EE_Import)) {
+			self::$_instance = new self();
+		}
+		return self::$_instance;
+	}
+
+	/**
+	 * Resets the importer
+	 *
+	 * @return EE_Import
+	 */
+	public static function reset()
+	{
+		self::$_instance = null;
+		return self::instance();
+	}
+
+
+	/**
+	 *    @ generates HTML for a file upload input and form
+	 *    @ access    public
+	 *
+	 * @param    string $title  - heading for the form
+	 * @param    string $intro  - additional text explaing what to do
+	 * @param    string $page   - EE Admin page to direct form to - in the form "espresso_{pageslug}"
+	 * @param    string $action - EE Admin page route array "action" that form will direct to
+	 * @param    string $type   - type of file to import
+	 *                          @ return    string
+	 */
+	public function upload_form($title, $intro, $form_url, $action, $type)
+	{
+
+		$form_url = EE_Admin_Page::add_query_args_and_nonce(array('action' => $action), $form_url);
+
+		ob_start();
+		?>
         <div class="ee-upload-form-dv">
             <h3><?php echo $title; ?></h3>
             <p><?php echo $intro; ?></p>
@@ -114,874 +114,874 @@ 
                 <b><?php _e('Attention', 'event_espresso'); ?></b><br/>
                 <?php echo sprintf(__('Accepts .%s file types only.', 'event_espresso'), $type); ?>
                 <?php echo __(
-                    'Please only import CSV files exported from Event Espresso, or compatible 3rd-party software.',
-                    'event_espresso'
-                ); ?>
+					'Please only import CSV files exported from Event Espresso, or compatible 3rd-party software.',
+					'event_espresso'
+				); ?>
             </p>
 
         </div>
 
         <?php
-        $uploader = ob_get_clean();
-        return $uploader;
-    }
-
-
-    /**
-     * @Import Event Espresso data - some code "borrowed" from event espresso csv_import.php
-     * @access public
-     * @return boolean success
-     */
-    public function import()
-    {
-
-        require_once(EE_CLASSES . 'EE_CSV.class.php');
-        $this->EE_CSV = EE_CSV::instance();
-
-        if (isset($_REQUEST['import'])) {
-            if (isset($_POST['csv_submitted'])) {
-                switch ($_FILES['file']['error'][0]) {
-                    case UPLOAD_ERR_OK:
-                        $error_msg = false;
-                        break;
-                    case UPLOAD_ERR_INI_SIZE:
-                        $error_msg = __(
-                            "'The uploaded file exceeds the upload_max_filesize directive in php.ini.'",
-                            "event_espresso"
-                        );
-                        break;
-                    case UPLOAD_ERR_FORM_SIZE:
-                        $error_msg = __(
-                            'The uploaded file exceeds the MAX_FILE_SIZE directive that was specified in the HTML form.',
-                            "event_espresso"
-                        );
-                        break;
-                    case UPLOAD_ERR_PARTIAL:
-                        $error_msg = __('The uploaded file was only partially uploaded.', "event_espresso");
-                        break;
-                    case UPLOAD_ERR_NO_FILE:
-                        $error_msg = __('No file was uploaded.', "event_espresso");
-                        break;
-                    case UPLOAD_ERR_NO_TMP_DIR:
-                        $error_msg = __('Missing a temporary folder.', "event_espresso");
-                        break;
-                    case UPLOAD_ERR_CANT_WRITE:
-                        $error_msg = __('Failed to write file to disk.', "event_espresso");
-                        break;
-                    case UPLOAD_ERR_EXTENSION:
-                        $error_msg = __('File upload stopped by extension.', "event_espresso");
-                        break;
-                    default:
-                        $error_msg = __(
-                            'An unknown error occurred and the file could not be uploaded',
-                            "event_espresso"
-                        );
-                        break;
-                }
-
-                if (! $error_msg) {
-                    $filename = $_FILES['file']['name'][0];
-                    $file_ext = substr(strrchr($filename, '.'), 1);
-                    $file_type = $_FILES['file']['type'][0];
-                    $temp_file = $_FILES['file']['tmp_name'][0];
-                    $filesize = $_FILES['file']['size'][0] / 1024;// convert from bytes to KB
-
-                    if ($file_ext == 'csv') {
-                        $max_upload = $this->EE_CSV->get_max_upload_size();// max upload size in KB
-                        if ($filesize < $max_upload || true) {
-                            $wp_upload_dir = str_replace(array('\\', '/'), DS, wp_upload_dir());
-                            $path_to_file = $wp_upload_dir['basedir'] . DS . 'espresso' . DS . $filename;
-
-                            if (move_uploaded_file($temp_file, $path_to_file)) {
-                                // convert csv to array
-                                $this->csv_array = $this->EE_CSV->import_csv_to_model_data_array($path_to_file);
-
-                                // was data successfully stored in an array?
-                                if (is_array($this->csv_array)) {
-                                    $import_what = str_replace('csv_import_', '', $_REQUEST['action']);
-                                    $import_what = str_replace('_', ' ', ucwords($import_what));
-                                    $processed_data = $this->csv_array;
-                                    $this->columns_to_save = false;
-
-                                    // if any imports require funcky processing, we'll catch them in the switch
-                                    switch ($_REQUEST['action']) {
-                                        case "import_events":
-                                        case "event_list":
-                                            $import_what = 'Event Details';
-                                            break;
-
-                                        case 'groupon_import_csv':
-                                            $import_what = 'Groupon Codes';
-                                            $processed_data = $this->process_groupon_codes();
-                                            break;
-                                    }
-                                    // save processed codes to db
-                                    if ($this->save_csv_data_array_to_db($processed_data, $this->columns_to_save)) {
-                                        return true;
-                                    }
-                                } else {
-                                    // no array? must be an error
-                                    EE_Error::add_error(
-                                        sprintf(__("No file seems to have been uploaded", "event_espresso")),
-                                        __FILE__,
-                                        __FUNCTION__,
-                                        __LINE__
-                                    );
-                                    return false;
-                                }
-                            } else {
-                                EE_Error::add_error(
-                                    sprintf(__("%s was not successfully uploaded", "event_espresso"), $filename),
-                                    __FILE__,
-                                    __FUNCTION__,
-                                    __LINE__
-                                );
-                                return false;
-                            }
-                        } else {
-                            EE_Error::add_error(
-                                sprintf(
-                                    __(
-                                        "%s was too large of a file and could not be uploaded. The max filesize is %s' KB.",
-                                        "event_espresso"
-                                    ),
-                                    $filename,
-                                    $max_upload
-                                ),
-                                __FILE__,
-                                __FUNCTION__,
-                                __LINE__
-                            );
-                            return false;
-                        }
-                    } else {
-                        EE_Error::add_error(
-                            sprintf(__("%s  had an invalid file extension, not uploaded", "event_espresso"), $filename),
-                            __FILE__,
-                            __FUNCTION__,
-                            __LINE__
-                        );
-                        return false;
-                    }
-                } else {
-                    EE_Error::add_error($error_msg, __FILE__, __FUNCTION__, __LINE__);
-                    return false;
-                }
-            }
-        }
-        return;
-    }
-
-
-    /**
-     *    Given an array of data (usually from a CSV import) attempts to save that data to the db.
-     *    If $model_name ISN'T provided, assumes that this is a 3d array, with toplevel keys being model names,
-     *    next level being numeric indexes adn each value representing a model object, and the last layer down
-     *    being keys of model fields and their proposed values.
-     *    If $model_name IS provided, assumes a 2d array of the bottom two layers previously mentioned.
-     *    If the CSV data says (in the metadata row) that it's from the SAME database,
-     *    we treat the IDs in the CSV as the normal IDs, and try to update those records. However, if those
-     *    IDs DON'T exist in the database, they're treated as temporary IDs,
-     *    which can used elsewhere to refer to the same object. Once an item
-     *    with a temporary ID gets inserted, we record its mapping from temporary
-     *    ID to real ID, and use the real ID in place of the temporary ID
-     *    when that temporary ID was used as a foreign key.
-     *    If the CSV data says (in the metadata again) that it's from a DIFFERENT database,
-     *    we treat all the IDs in the CSV as temporary ID- eg, if the CSV specifies an event with
-     *    ID 1, and the database already has an event with ID 1, we assume that's just a coincidence,
-     *    and insert a new event, and map it's temporary ID of 1 over to its new real ID.
-     *    An important exception are non-auto-increment primary keys. If one entry in the
-     *    CSV file has the same ID as one in the DB, we assume they are meant to be
-     *    the same item, and instead update the item in the DB with that same ID.
-     *    Also note, we remember the mappings permanently. So the 2nd, 3rd, and 10000th
-     *    time you import a CSV from a different site, we remember their mappings, and
-     * will try to update the item in the DB instead of inserting another item (eg
-     * if we previously imported an event with temporary ID 1, and then it got a
-     * real ID of 123, we remember that. So the next time we import an event with
-     * temporary ID, from the same site, we know that it's real ID is 123, and will
-     * update that event, instead of adding a new event).
-     *
-     * @access public
-     * @param array $csv_data_array - the array containing the csv data produced from
-     *                              EE_CSV::import_csv_to_model_data_array()
-     * @param array $fields_to_save - an array containing the csv column names as keys with the corresponding db table
-     *                              fields they will be saved to
-     * @return TRUE on success, FALSE on fail
-     * @throws \EE_Error
-     */
-    public function save_csv_data_array_to_db($csv_data_array, $model_name = false)
-    {
-        $success = false;
-        $error = false;
-        // whther to treat this import as if it's data froma different database or not
-        // ie, if it IS from a different database, ignore foreign keys whihf
-        $export_from_site_a_to_b = true;
-        // first level of array is not table information but a table name was passed to the function
-        // array is only two levels deep, so let's fix that by adding a level, else the next steps will fail
-        if ($model_name) {
-            $csv_data_array = array($csv_data_array);
-        }
-        // begin looking through the $csv_data_array, expecting the toplevel key to be the model's name...
-        $old_site_url = 'none-specified';
-        // hanlde metadata
-        if (isset($csv_data_array[ EE_CSV::metadata_header ])) {
-            $csv_metadata = array_shift($csv_data_array[ EE_CSV::metadata_header ]);
-            // ok so its metadata, dont try to save it to ehte db obviously...
-            if (isset($csv_metadata['site_url']) && $csv_metadata['site_url'] == site_url()) {
-                EE_Error::add_attention(
-                    sprintf(
-                        __(
-                            "CSV Data appears to be from the same database, so attempting to update data",
-                            "event_espresso"
-                        )
-                    )
-                );
-                $export_from_site_a_to_b = false;
-            } else {
-                $old_site_url = isset($csv_metadata['site_url']) ? $csv_metadata['site_url'] : $old_site_url;
-                EE_Error::add_attention(
-                    sprintf(
-                        __(
-                            "CSV Data appears to be from a different database (%s instead of %s), so we assume IDs in the CSV data DO NOT correspond to IDs in this database",
-                            "event_espresso"
-                        ),
-                        $old_site_url,
-                        site_url()
-                    )
-                );
-            };
-            unset($csv_data_array[ EE_CSV::metadata_header ]);
-        }
-        /**
-         * @var $old_db_to_new_db_mapping 2d array: toplevel keys being model names, bottom-level keys being the original key, and
-         * the value will be the newly-inserted ID.
-         * If we have already imported data from the same website via CSV, it shoudl be kept in this wp option
-         */
-        $old_db_to_new_db_mapping = get_option('ee_id_mapping_from' . sanitize_title($old_site_url), array());
-        if ($old_db_to_new_db_mapping) {
-            EE_Error::add_attention(
-                sprintf(
-                    __(
-                        "We noticed you have imported data via CSV from %s before. Because of this, IDs in your CSV have been mapped to their new IDs in %s",
-                        "event_espresso"
-                    ),
-                    $old_site_url,
-                    site_url()
-                )
-            );
-        }
-        $old_db_to_new_db_mapping = $this->save_data_rows_to_db(
-            $csv_data_array,
-            $export_from_site_a_to_b,
-            $old_db_to_new_db_mapping
-        );
-
-        // save the mapping from old db to new db in case they try re-importing the same data from the same website again
-        update_option('ee_id_mapping_from' . sanitize_title($old_site_url), $old_db_to_new_db_mapping);
-
-        if ($this->_total_updates > 0) {
-            EE_Error::add_success(
-                sprintf(
-                    __("%s existing records in the database were updated.", "event_espresso"),
-                    $this->_total_updates
-                )
-            );
-            $success = true;
-        }
-        if ($this->_total_inserts > 0) {
-            EE_Error::add_success(
-                sprintf(__("%s new records were added to the database.", "event_espresso"), $this->_total_inserts)
-            );
-            $success = true;
-        }
-
-        if ($this->_total_update_errors > 0) {
-            EE_Error::add_error(
-                sprintf(
-                    __(
-                        "'One or more errors occurred, and a total of %s existing records in the database were <strong>not</strong> updated.'",
-                        "event_espresso"
-                    ),
-                    $this->_total_update_errors
-                ),
-                __FILE__,
-                __FUNCTION__,
-                __LINE__
-            );
-            $error = true;
-        }
-        if ($this->_total_insert_errors > 0) {
-            EE_Error::add_error(
-                sprintf(
-                    __(
-                        "One or more errors occurred, and a total of %s new records were <strong>not</strong> added to the database.'",
-                        "event_espresso"
-                    ),
-                    $this->_total_insert_errors
-                ),
-                __FILE__,
-                __FUNCTION__,
-                __LINE__
-            );
-            $error = true;
-        }
-
-        // lastly, we need to update the datetime and ticket sold amounts
-        // as those may have been affected by this
-        EEM_Ticket::instance()->update_tickets_sold(EEM_Ticket::instance()->get_all());
-
-        // if there was at least one success and absolutely no errors
-        if ($success && ! $error) {
-            return true;
-        } else {
-            return false;
-        }
-    }
-
-
-    /**
-     * Processes the array of data, given the knowledge that it's from the same database or a different one,
-     * and the mapping from temporary IDs to real IDs.
-     * If the data is from a different database, we treat the primary keys and their corresponding
-     * foreign keys as "temp Ids", basically identifiers that get mapped to real primary keys
-     * in the real target database. As items are inserted, their temporary primary keys
-     * are mapped to the real IDs in the target database. Also, before doing any update or
-     * insert, we replace all the temp ID which are foreign keys with their mapped real IDs.
-     * An exception: string primary keys are treated as real IDs, or else we'd need to
-     * dynamically generate new string primary keys which would be very awkard for the country table etc.
-     * Also, models with no primary key are strange too. We combine use their primar key INDEX (a
-     * combination of fields) to create a unique string identifying the row and store
-     * those in the mapping.
-     *
-     * If the data is from the same database, we usually treat primary keys as real IDs.
-     * An exception is if there is nothing in the database for that ID. If that's the case,
-     * we need to insert a new row for that ID, and then map from the non-existent ID
-     * to the newly-inserted real ID.
-     *
-     * @param type $csv_data_array
-     * @param type $export_from_site_a_to_b
-     * @param type $old_db_to_new_db_mapping
-     * @return array updated $old_db_to_new_db_mapping
-     */
-    public function save_data_rows_to_db($csv_data_array, $export_from_site_a_to_b, $old_db_to_new_db_mapping)
-    {
-        foreach ($csv_data_array as $model_name_in_csv_data => $model_data_from_import) {
-            // now check that assumption was correct. If
-            if (EE_Registry::instance()->is_model_name($model_name_in_csv_data)) {
-                $model_name = $model_name_in_csv_data;
-            } else {
-                // no table info in the array and no table name passed to the function?? FAIL
-                EE_Error::add_error(
-                    __(
-                        'No table information was specified and/or found, therefore the import could not be completed',
-                        'event_espresso'
-                    ),
-                    __FILE__,
-                    __FUNCTION__,
-                    __LINE__
-                );
-                return false;
-            }
-            /* @var $model EEM_Base */
-            $model = EE_Registry::instance()->load_model($model_name);
-
-            // so without further ado, scanning all the data provided for primary keys and their inital values
-            foreach ($model_data_from_import as $model_object_data) {
-                // before we do ANYTHING, make sure the csv row wasn't just completely blank
-                $row_is_completely_empty = true;
-                foreach ($model_object_data as $field) {
-                    if ($field) {
-                        $row_is_completely_empty = false;
-                    }
-                }
-                if ($row_is_completely_empty) {
-                    continue;
-                }
-                // find the PK in the row of data (or a combined key if
-                // there is no primary key)
-                if ($model->has_primary_key_field()) {
-                    $id_in_csv = $model_object_data[ $model->primary_key_name() ];
-                } else {
-                    $id_in_csv = $model->get_index_primary_key_string($model_object_data);
-                }
-
-
-                $model_object_data = $this->_replace_temp_ids_with_mappings(
-                    $model_object_data,
-                    $model,
-                    $old_db_to_new_db_mapping,
-                    $export_from_site_a_to_b
-                );
-                // now we need to decide if we're going to add a new model object given the $model_object_data,
-                // or just update.
-                if ($export_from_site_a_to_b) {
-                    $what_to_do = $this->_decide_whether_to_insert_or_update_given_data_from_other_db(
-                        $id_in_csv,
-                        $model_object_data,
-                        $model,
-                        $old_db_to_new_db_mapping
-                    );
-                } else {// this is just a re-import
-                    $what_to_do = $this->_decide_whether_to_insert_or_update_given_data_from_same_db(
-                        $id_in_csv,
-                        $model_object_data,
-                        $model,
-                        $old_db_to_new_db_mapping
-                    );
-                }
-                if ($what_to_do == self::do_nothing) {
-                    continue;
-                }
-
-                // double-check we actually want to insert, if that's what we're planning
-                // based on whether this item would be unique in the DB or not
-                if ($what_to_do == self::do_insert) {
-                    // we're supposed to be inserting. But wait, will this thing
-                    // be acceptable if inserted?
-                    $conflicting = $model->get_one_conflicting($model_object_data, false);
-                    if ($conflicting) {
-                        // ok, this item would conflict if inserted. Just update the item that it conflicts with.
-                        $what_to_do = self::do_update;
-                        // and if this model has a primary key, remember its mapping
-                        if ($model->has_primary_key_field()) {
-                            $old_db_to_new_db_mapping[ $model_name ][ $id_in_csv ] = $conflicting->ID();
-                            $model_object_data[ $model->primary_key_name() ] = $conflicting->ID();
-                        } else {
-                            // we want to update this conflicting item, instead of inserting a conflicting item
-                            // so we need to make sure they match entirely (its possible that they only conflicted on one field, but we need them to match on other fields
-                            // for the WHERE conditions in the update). At the time of this comment, there were no models like this
-                            foreach ($model->get_combined_primary_key_fields() as $key_field) {
-                                $model_object_data[ $key_field->get_name() ] = $conflicting->get(
-                                    $key_field->get_name()
-                                );
-                            }
-                        }
-                    }
-                }
-                if ($what_to_do == self::do_insert) {
-                    $old_db_to_new_db_mapping = $this->_insert_from_data_array(
-                        $id_in_csv,
-                        $model_object_data,
-                        $model,
-                        $old_db_to_new_db_mapping
-                    );
-                } elseif ($what_to_do == self::do_update) {
-                    $old_db_to_new_db_mapping = $this->_update_from_data_array(
-                        $id_in_csv,
-                        $model_object_data,
-                        $model,
-                        $old_db_to_new_db_mapping
-                    );
-                } else {
-                    throw new EE_Error(
-                        sprintf(
-                            __(
-                                'Programming error. We shoudl be inserting or updating, but instead we are being told to "%s", whifh is invalid',
-                                'event_espresso'
-                            ),
-                            $what_to_do
-                        )
-                    );
-                }
-            }
-        }
-        return $old_db_to_new_db_mapping;
-    }
-
-
-    /**
-     * Decides whether or not to insert, given that this data is from another database.
-     * So, if the primary key of this $model_object_data already exists in the database,
-     * it's just a coincidence and we should still insert. The only time we should
-     * update is when we know what it maps to, or there's something that would
-     * conflict (and we should instead just update that conflicting thing)
-     *
-     * @param string   $id_in_csv
-     * @param array    $model_object_data        by reference so it can be modified
-     * @param EEM_Base $model
-     * @param array    $old_db_to_new_db_mapping by reference so it can be modified
-     * @return string one of the consts on this class that starts with do_*
-     */
-    protected function _decide_whether_to_insert_or_update_given_data_from_other_db(
-        $id_in_csv,
-        $model_object_data,
-        $model,
-        $old_db_to_new_db_mapping
-    ) {
-        $model_name = $model->get_this_model_name();
-        // if it's a site-to-site export-and-import, see if this modelobject's id
-        // in the old data that we know of
-        if (isset($old_db_to_new_db_mapping[ $model_name ][ $id_in_csv ])) {
-            return self::do_update;
-        } else {
-            return self::do_insert;
-        }
-    }
-
-    /**
-     * If this thing basically already exists in the database, we want to update it;
-     * otherwise insert it (ie, someone tweaked the CSV file, or the item was
-     * deleted in the database so it should be re-inserted)
-     *
-     * @param type     $id_in_csv
-     * @param type     $model_object_data
-     * @param EEM_Base $model
-     * @param type     $old_db_to_new_db_mapping
-     * @return
-     */
-    protected function _decide_whether_to_insert_or_update_given_data_from_same_db(
-        $id_in_csv,
-        $model_object_data,
-        $model
-    ) {
-        // in this case, check if this thing ACTUALLY exists in the database
-        if ($model->get_one_conflicting($model_object_data)) {
-            return self::do_update;
-        } else {
-            return self::do_insert;
-        }
-    }
-
-    /**
-     * Using the $old_db_to_new_db_mapping array, replaces all the temporary IDs
-     * with their mapped real IDs. Eg, if importing from site A to B, the mapping
-     * file may indicate that the ID "my_event_id" maps to an actual event ID of 123.
-     * So this function searches for any event temp Ids called "my_event_id" and
-     * replaces them with 123.
-     * Also, if there is no temp ID for the INT foreign keys from another database,
-     * replaces them with 0 or the field's default.
-     *
-     * @param type     $model_object_data
-     * @param EEM_Base $model
-     * @param type     $old_db_to_new_db_mapping
-     * @param boolean  $export_from_site_a_to_b
-     * @return array updated model object data with temp IDs removed
-     */
-    protected function _replace_temp_ids_with_mappings(
-        $model_object_data,
-        $model,
-        $old_db_to_new_db_mapping,
-        $export_from_site_a_to_b
-    ) {
-        // if this model object's primary key is in the mapping, replace it
-        if ($model->has_primary_key_field() &&
-            $model->get_primary_key_field()->is_auto_increment() &&
-            isset($old_db_to_new_db_mapping[ $model->get_this_model_name() ]) &&
-            isset(
-                $old_db_to_new_db_mapping[ $model->get_this_model_name() ][ $model_object_data[ $model->primary_key_name() ] ]
-            )) {
-            $model_object_data[ $model->primary_key_name() ] = $old_db_to_new_db_mapping[ $model->get_this_model_name(
-            ) ][ $model_object_data[ $model->primary_key_name() ] ];
-        }
-
-        try {
-            $model_name_field = $model->get_field_containing_related_model_name();
-            $models_pointed_to_by_model_name_field = $model_name_field->get_model_names_pointed_to();
-        } catch (EE_Error $e) {
-            $model_name_field = null;
-            $models_pointed_to_by_model_name_field = array();
-        }
-        foreach ($model->field_settings(true) as $field_obj) {
-            if ($field_obj instanceof EE_Foreign_Key_Int_Field) {
-                $models_pointed_to = $field_obj->get_model_names_pointed_to();
-                $found_a_mapping = false;
-                foreach ($models_pointed_to as $model_pointed_to_by_fk) {
-                    if ($model_name_field) {
-                        $value_of_model_name_field = $model_object_data[ $model_name_field->get_name() ];
-                        if ($value_of_model_name_field == $model_pointed_to_by_fk) {
-                            $model_object_data[ $field_obj->get_name() ] = $this->_find_mapping_in(
-                                $model_object_data[ $field_obj->get_name() ],
-                                $model_pointed_to_by_fk,
-                                $old_db_to_new_db_mapping,
-                                $export_from_site_a_to_b
-                            );
-                            $found_a_mapping = true;
-                            break;
-                        }
-                    } else {
-                        $model_object_data[ $field_obj->get_name() ] = $this->_find_mapping_in(
-                            $model_object_data[ $field_obj->get_name() ],
-                            $model_pointed_to_by_fk,
-                            $old_db_to_new_db_mapping,
-                            $export_from_site_a_to_b
-                        );
-                        $found_a_mapping = true;
-                    }
-                    // once we've found a mapping for this field no need to continue
-                    if ($found_a_mapping) {
-                        break;
-                    }
-                }
-            } else {
-                // it's a string foreign key (which we leave alone, because those are things
-                // like country names, which we'd really rather not make 2 USAs etc (we'd actually
-                // prefer to just update one)
-                // or it's just a regular value that ought to be replaced
-            }
-        }
-        //
-        if ($model instanceof EEM_Term_Taxonomy) {
-            $model_object_data = $this->_handle_split_term_ids($model_object_data);
-        }
-        return $model_object_data;
-    }
-
-    /**
-     * If the data was exported PRE-4.2, but then imported POST-4.2, then the term_id
-     * this term-taxonomy refers to may be out-of-date so we need to update it.
-     * see https://make.wordpress.org/core/2015/02/16/taxonomy-term-splitting-in-4-2-a-developer-guide/
-     *
-     * @param type $model_object_data
-     * @return array new model object data
-     */
-    protected function _handle_split_term_ids($model_object_data)
-    {
-        if (isset($model_object_data['term_id'])
-            && isset($model_object_data['taxonomy'])
-            && apply_filters(
-                'FHEE__EE_Import__handle_split_term_ids__function_exists',
-                function_exists('wp_get_split_term'),
-                $model_object_data
-            )) {
-            $new_term_id = wp_get_split_term($model_object_data['term_id'], $model_object_data['taxonomy']);
-            if ($new_term_id) {
-                $model_object_data['term_id'] = $new_term_id;
-            }
-        }
-        return $model_object_data;
-    }
-
-    /**
-     * Given the object's ID and its model's name, find it int he mapping data,
-     * bearing in mind where it came from
-     *
-     * @param type   $object_id
-     * @param string $model_name
-     * @param array  $old_db_to_new_db_mapping
-     * @param type   $export_from_site_a_to_b
-     * @return int
-     */
-    protected function _find_mapping_in($object_id, $model_name, $old_db_to_new_db_mapping, $export_from_site_a_to_b)
-    {
-        if (isset($old_db_to_new_db_mapping[ $model_name ][ $object_id ])) {
-            return $old_db_to_new_db_mapping[ $model_name ][ $object_id ];
-        } elseif ($object_id == '0' || $object_id == '') {
-            // leave as-is
-            return $object_id;
-        } elseif ($export_from_site_a_to_b) {
-            // we couldn't find a mapping for this, and it's from a different site,
-            // so blank it out
-            return null;
-        } elseif (! $export_from_site_a_to_b) {
-            // we coudln't find a mapping for this, but it's from thsi DB anyway
-            // so let's just leave it as-is
-            return $object_id;
-        }
-    }
-
-    /**
-     *
-     * @param type     $id_in_csv
-     * @param type     $model_object_data
-     * @param EEM_Base $model
-     * @param type     $old_db_to_new_db_mapping
-     * @return array updated $old_db_to_new_db_mapping
-     */
-    protected function _insert_from_data_array($id_in_csv, $model_object_data, $model, $old_db_to_new_db_mapping)
-    {
-        // remove the primary key, if there is one (we don't want it for inserts OR updates)
-        // we'll put it back in if we need it
-        if ($model->has_primary_key_field() && $model->get_primary_key_field()->is_auto_increment()) {
-            $effective_id = $model_object_data[ $model->primary_key_name() ];
-            unset($model_object_data[ $model->primary_key_name() ]);
-        } else {
-            $effective_id = $model->get_index_primary_key_string($model_object_data);
-        }
-        // the model takes care of validating the CSV's input
-        try {
-            $new_id = $model->insert($model_object_data);
-            if ($new_id) {
-                $old_db_to_new_db_mapping[ $model->get_this_model_name() ][ $id_in_csv ] = $new_id;
-                $this->_total_inserts++;
-                EE_Error::add_success(
-                    sprintf(
-                        __("Successfully added new %s (with id %s) with csv data %s", "event_espresso"),
-                        $model->get_this_model_name(),
-                        $new_id,
-                        implode(",", $model_object_data)
-                    )
-                );
-            } else {
-                $this->_total_insert_errors++;
-                // put the ID used back in there for the error message
-                if ($model->has_primary_key_field()) {
-                    $model_object_data[ $model->primary_key_name() ] = $effective_id;
-                }
-                EE_Error::add_error(
-                    sprintf(
-                        __("Could not insert new %s with the csv data: %s", "event_espresso"),
-                        $model->get_this_model_name(),
-                        http_build_query($model_object_data)
-                    ),
-                    __FILE__,
-                    __FUNCTION__,
-                    __LINE__
-                );
-            }
-        } catch (EE_Error $e) {
-            $this->_total_insert_errors++;
-            if ($model->has_primary_key_field()) {
-                $model_object_data[ $model->primary_key_name() ] = $effective_id;
-            }
-            EE_Error::add_error(
-                sprintf(
-                    __("Could not insert new %s with the csv data: %s because %s", "event_espresso"),
-                    $model->get_this_model_name(),
-                    implode(",", $model_object_data),
-                    $e->getMessage()
-                ),
-                __FILE__,
-                __FUNCTION__,
-                __LINE__
-            );
-        }
-        return $old_db_to_new_db_mapping;
-    }
-
-    /**
-     * Given the model object data, finds the row to update and updates it
-     *
-     * @param string|int $id_in_csv
-     * @param array      $model_object_data
-     * @param EEM_Base   $model
-     * @param array      $old_db_to_new_db_mapping
-     * @return array updated $old_db_to_new_db_mapping
-     */
-    protected function _update_from_data_array($id_in_csv, $model_object_data, $model, $old_db_to_new_db_mapping)
-    {
-        try {
-            // let's keep two copies of the model object data:
-            // one for performing an update, one for everthing else
-            $model_object_data_for_update = $model_object_data;
-            if ($model->has_primary_key_field()) {
-                $conditions = array($model->primary_key_name() => $model_object_data[ $model->primary_key_name() ]);
-                // remove the primary key because we shouldn't use it for updating
-                unset($model_object_data_for_update[ $model->primary_key_name() ]);
-            } elseif ($model->get_combined_primary_key_fields() > 1) {
-                $conditions = array();
-                foreach ($model->get_combined_primary_key_fields() as $key_field) {
-                    $conditions[ $key_field->get_name() ] = $model_object_data[ $key_field->get_name() ];
-                }
-            } else {
-                $model->primary_key_name(
-                );// this shoudl just throw an exception, explaining that we dont have a primary key (or a combine dkey)
-            }
-
-            $success = $model->update($model_object_data_for_update, array($conditions));
-            if ($success) {
-                $this->_total_updates++;
-                EE_Error::add_success(
-                    sprintf(
-                        __("Successfully updated %s with csv data %s", "event_espresso"),
-                        $model->get_this_model_name(),
-                        implode(",", $model_object_data_for_update)
-                    )
-                );
-                // we should still record the mapping even though it was an update
-                // because if we were going to insert somethign but it was going to conflict
-                // we would have last-minute decided to update. So we'd like to know what we updated
-                // and so we record what record ended up being updated using the mapping
-                if ($model->has_primary_key_field()) {
-                    $new_key_for_mapping = $model_object_data[ $model->primary_key_name() ];
-                } else {
-                    // no primary key just a combined key
-                    $new_key_for_mapping = $model->get_index_primary_key_string($model_object_data);
-                }
-                $old_db_to_new_db_mapping[ $model->get_this_model_name() ][ $id_in_csv ] = $new_key_for_mapping;
-            } else {
-                $matched_items = $model->get_all(array($conditions));
-                if (! $matched_items) {
-                    // no items were matched (so we shouldn't have updated)... but then we should have inserted? what the heck?
-                    $this->_total_update_errors++;
-                    EE_Error::add_error(
-                        sprintf(
-                            __(
-                                "Could not update %s with the csv data: '%s' for an unknown reason (using WHERE conditions %s)",
-                                "event_espresso"
-                            ),
-                            $model->get_this_model_name(),
-                            http_build_query($model_object_data),
-                            http_build_query($conditions)
-                        ),
-                        __FILE__,
-                        __FUNCTION__,
-                        __LINE__
-                    );
-                } else {
-                    $this->_total_updates++;
-                    EE_Error::add_success(
-                        sprintf(
-                            __(
-                                "%s with csv data '%s' was found in the database and didn't need updating because all the data is identical.",
-                                "event_espresso"
-                            ),
-                            $model->get_this_model_name(),
-                            implode(",", $model_object_data)
-                        )
-                    );
-                }
-            }
-        } catch (EE_Error $e) {
-            $this->_total_update_errors++;
-            $basic_message = sprintf(
-                __("Could not update %s with the csv data: %s because %s", "event_espresso"),
-                $model->get_this_model_name(),
-                implode(",", $model_object_data),
-                $e->getMessage()
-            );
-            $debug_message = $basic_message . ' Stack trace: ' . $e->getTraceAsString();
-            EE_Error::add_error("$basic_message | $debug_message", __FILE__, __FUNCTION__, __LINE__);
-        }
-        return $old_db_to_new_db_mapping;
-    }
-
-    /**
-     * Gets the number of inserts performed since importer was instantiated or reset
-     *
-     * @return int
-     */
-    public function get_total_inserts()
-    {
-        return $this->_total_inserts;
-    }
-
-    /**
-     *  Gets the number of insert errors since importer was instantiated or reset
-     *
-     * @return int
-     */
-    public function get_total_insert_errors()
-    {
-        return $this->_total_insert_errors;
-    }
-
-    /**
-     *  Gets the number of updates performed since importer was instantiated or reset
-     *
-     * @return int
-     */
-    public function get_total_updates()
-    {
-        return $this->_total_updates;
-    }
-
-    /**
-     *  Gets the number of update errors since importer was instantiated or reset
-     *
-     * @return int
-     */
-    public function get_total_update_errors()
-    {
-        return $this->_total_update_errors;
-    }
+		$uploader = ob_get_clean();
+		return $uploader;
+	}
+
+
+	/**
+	 * @Import Event Espresso data - some code "borrowed" from event espresso csv_import.php
+	 * @access public
+	 * @return boolean success
+	 */
+	public function import()
+	{
+
+		require_once(EE_CLASSES . 'EE_CSV.class.php');
+		$this->EE_CSV = EE_CSV::instance();
+
+		if (isset($_REQUEST['import'])) {
+			if (isset($_POST['csv_submitted'])) {
+				switch ($_FILES['file']['error'][0]) {
+					case UPLOAD_ERR_OK:
+						$error_msg = false;
+						break;
+					case UPLOAD_ERR_INI_SIZE:
+						$error_msg = __(
+							"'The uploaded file exceeds the upload_max_filesize directive in php.ini.'",
+							"event_espresso"
+						);
+						break;
+					case UPLOAD_ERR_FORM_SIZE:
+						$error_msg = __(
+							'The uploaded file exceeds the MAX_FILE_SIZE directive that was specified in the HTML form.',
+							"event_espresso"
+						);
+						break;
+					case UPLOAD_ERR_PARTIAL:
+						$error_msg = __('The uploaded file was only partially uploaded.', "event_espresso");
+						break;
+					case UPLOAD_ERR_NO_FILE:
+						$error_msg = __('No file was uploaded.', "event_espresso");
+						break;
+					case UPLOAD_ERR_NO_TMP_DIR:
+						$error_msg = __('Missing a temporary folder.', "event_espresso");
+						break;
+					case UPLOAD_ERR_CANT_WRITE:
+						$error_msg = __('Failed to write file to disk.', "event_espresso");
+						break;
+					case UPLOAD_ERR_EXTENSION:
+						$error_msg = __('File upload stopped by extension.', "event_espresso");
+						break;
+					default:
+						$error_msg = __(
+							'An unknown error occurred and the file could not be uploaded',
+							"event_espresso"
+						);
+						break;
+				}
+
+				if (! $error_msg) {
+					$filename = $_FILES['file']['name'][0];
+					$file_ext = substr(strrchr($filename, '.'), 1);
+					$file_type = $_FILES['file']['type'][0];
+					$temp_file = $_FILES['file']['tmp_name'][0];
+					$filesize = $_FILES['file']['size'][0] / 1024;// convert from bytes to KB
+
+					if ($file_ext == 'csv') {
+						$max_upload = $this->EE_CSV->get_max_upload_size();// max upload size in KB
+						if ($filesize < $max_upload || true) {
+							$wp_upload_dir = str_replace(array('\\', '/'), DS, wp_upload_dir());
+							$path_to_file = $wp_upload_dir['basedir'] . DS . 'espresso' . DS . $filename;
+
+							if (move_uploaded_file($temp_file, $path_to_file)) {
+								// convert csv to array
+								$this->csv_array = $this->EE_CSV->import_csv_to_model_data_array($path_to_file);
+
+								// was data successfully stored in an array?
+								if (is_array($this->csv_array)) {
+									$import_what = str_replace('csv_import_', '', $_REQUEST['action']);
+									$import_what = str_replace('_', ' ', ucwords($import_what));
+									$processed_data = $this->csv_array;
+									$this->columns_to_save = false;
+
+									// if any imports require funcky processing, we'll catch them in the switch
+									switch ($_REQUEST['action']) {
+										case "import_events":
+										case "event_list":
+											$import_what = 'Event Details';
+											break;
+
+										case 'groupon_import_csv':
+											$import_what = 'Groupon Codes';
+											$processed_data = $this->process_groupon_codes();
+											break;
+									}
+									// save processed codes to db
+									if ($this->save_csv_data_array_to_db($processed_data, $this->columns_to_save)) {
+										return true;
+									}
+								} else {
+									// no array? must be an error
+									EE_Error::add_error(
+										sprintf(__("No file seems to have been uploaded", "event_espresso")),
+										__FILE__,
+										__FUNCTION__,
+										__LINE__
+									);
+									return false;
+								}
+							} else {
+								EE_Error::add_error(
+									sprintf(__("%s was not successfully uploaded", "event_espresso"), $filename),
+									__FILE__,
+									__FUNCTION__,
+									__LINE__
+								);
+								return false;
+							}
+						} else {
+							EE_Error::add_error(
+								sprintf(
+									__(
+										"%s was too large of a file and could not be uploaded. The max filesize is %s' KB.",
+										"event_espresso"
+									),
+									$filename,
+									$max_upload
+								),
+								__FILE__,
+								__FUNCTION__,
+								__LINE__
+							);
+							return false;
+						}
+					} else {
+						EE_Error::add_error(
+							sprintf(__("%s  had an invalid file extension, not uploaded", "event_espresso"), $filename),
+							__FILE__,
+							__FUNCTION__,
+							__LINE__
+						);
+						return false;
+					}
+				} else {
+					EE_Error::add_error($error_msg, __FILE__, __FUNCTION__, __LINE__);
+					return false;
+				}
+			}
+		}
+		return;
+	}
+
+
+	/**
+	 *    Given an array of data (usually from a CSV import) attempts to save that data to the db.
+	 *    If $model_name ISN'T provided, assumes that this is a 3d array, with toplevel keys being model names,
+	 *    next level being numeric indexes adn each value representing a model object, and the last layer down
+	 *    being keys of model fields and their proposed values.
+	 *    If $model_name IS provided, assumes a 2d array of the bottom two layers previously mentioned.
+	 *    If the CSV data says (in the metadata row) that it's from the SAME database,
+	 *    we treat the IDs in the CSV as the normal IDs, and try to update those records. However, if those
+	 *    IDs DON'T exist in the database, they're treated as temporary IDs,
+	 *    which can used elsewhere to refer to the same object. Once an item
+	 *    with a temporary ID gets inserted, we record its mapping from temporary
+	 *    ID to real ID, and use the real ID in place of the temporary ID
+	 *    when that temporary ID was used as a foreign key.
+	 *    If the CSV data says (in the metadata again) that it's from a DIFFERENT database,
+	 *    we treat all the IDs in the CSV as temporary ID- eg, if the CSV specifies an event with
+	 *    ID 1, and the database already has an event with ID 1, we assume that's just a coincidence,
+	 *    and insert a new event, and map it's temporary ID of 1 over to its new real ID.
+	 *    An important exception are non-auto-increment primary keys. If one entry in the
+	 *    CSV file has the same ID as one in the DB, we assume they are meant to be
+	 *    the same item, and instead update the item in the DB with that same ID.
+	 *    Also note, we remember the mappings permanently. So the 2nd, 3rd, and 10000th
+	 *    time you import a CSV from a different site, we remember their mappings, and
+	 * will try to update the item in the DB instead of inserting another item (eg
+	 * if we previously imported an event with temporary ID 1, and then it got a
+	 * real ID of 123, we remember that. So the next time we import an event with
+	 * temporary ID, from the same site, we know that it's real ID is 123, and will
+	 * update that event, instead of adding a new event).
+	 *
+	 * @access public
+	 * @param array $csv_data_array - the array containing the csv data produced from
+	 *                              EE_CSV::import_csv_to_model_data_array()
+	 * @param array $fields_to_save - an array containing the csv column names as keys with the corresponding db table
+	 *                              fields they will be saved to
+	 * @return TRUE on success, FALSE on fail
+	 * @throws \EE_Error
+	 */
+	public function save_csv_data_array_to_db($csv_data_array, $model_name = false)
+	{
+		$success = false;
+		$error = false;
+		// whther to treat this import as if it's data froma different database or not
+		// ie, if it IS from a different database, ignore foreign keys whihf
+		$export_from_site_a_to_b = true;
+		// first level of array is not table information but a table name was passed to the function
+		// array is only two levels deep, so let's fix that by adding a level, else the next steps will fail
+		if ($model_name) {
+			$csv_data_array = array($csv_data_array);
+		}
+		// begin looking through the $csv_data_array, expecting the toplevel key to be the model's name...
+		$old_site_url = 'none-specified';
+		// hanlde metadata
+		if (isset($csv_data_array[ EE_CSV::metadata_header ])) {
+			$csv_metadata = array_shift($csv_data_array[ EE_CSV::metadata_header ]);
+			// ok so its metadata, dont try to save it to ehte db obviously...
+			if (isset($csv_metadata['site_url']) && $csv_metadata['site_url'] == site_url()) {
+				EE_Error::add_attention(
+					sprintf(
+						__(
+							"CSV Data appears to be from the same database, so attempting to update data",
+							"event_espresso"
+						)
+					)
+				);
+				$export_from_site_a_to_b = false;
+			} else {
+				$old_site_url = isset($csv_metadata['site_url']) ? $csv_metadata['site_url'] : $old_site_url;
+				EE_Error::add_attention(
+					sprintf(
+						__(
+							"CSV Data appears to be from a different database (%s instead of %s), so we assume IDs in the CSV data DO NOT correspond to IDs in this database",
+							"event_espresso"
+						),
+						$old_site_url,
+						site_url()
+					)
+				);
+			};
+			unset($csv_data_array[ EE_CSV::metadata_header ]);
+		}
+		/**
+		 * @var $old_db_to_new_db_mapping 2d array: toplevel keys being model names, bottom-level keys being the original key, and
+		 * the value will be the newly-inserted ID.
+		 * If we have already imported data from the same website via CSV, it shoudl be kept in this wp option
+		 */
+		$old_db_to_new_db_mapping = get_option('ee_id_mapping_from' . sanitize_title($old_site_url), array());
+		if ($old_db_to_new_db_mapping) {
+			EE_Error::add_attention(
+				sprintf(
+					__(
+						"We noticed you have imported data via CSV from %s before. Because of this, IDs in your CSV have been mapped to their new IDs in %s",
+						"event_espresso"
+					),
+					$old_site_url,
+					site_url()
+				)
+			);
+		}
+		$old_db_to_new_db_mapping = $this->save_data_rows_to_db(
+			$csv_data_array,
+			$export_from_site_a_to_b,
+			$old_db_to_new_db_mapping
+		);
+
+		// save the mapping from old db to new db in case they try re-importing the same data from the same website again
+		update_option('ee_id_mapping_from' . sanitize_title($old_site_url), $old_db_to_new_db_mapping);
+
+		if ($this->_total_updates > 0) {
+			EE_Error::add_success(
+				sprintf(
+					__("%s existing records in the database were updated.", "event_espresso"),
+					$this->_total_updates
+				)
+			);
+			$success = true;
+		}
+		if ($this->_total_inserts > 0) {
+			EE_Error::add_success(
+				sprintf(__("%s new records were added to the database.", "event_espresso"), $this->_total_inserts)
+			);
+			$success = true;
+		}
+
+		if ($this->_total_update_errors > 0) {
+			EE_Error::add_error(
+				sprintf(
+					__(
+						"'One or more errors occurred, and a total of %s existing records in the database were <strong>not</strong> updated.'",
+						"event_espresso"
+					),
+					$this->_total_update_errors
+				),
+				__FILE__,
+				__FUNCTION__,
+				__LINE__
+			);
+			$error = true;
+		}
+		if ($this->_total_insert_errors > 0) {
+			EE_Error::add_error(
+				sprintf(
+					__(
+						"One or more errors occurred, and a total of %s new records were <strong>not</strong> added to the database.'",
+						"event_espresso"
+					),
+					$this->_total_insert_errors
+				),
+				__FILE__,
+				__FUNCTION__,
+				__LINE__
+			);
+			$error = true;
+		}
+
+		// lastly, we need to update the datetime and ticket sold amounts
+		// as those may have been affected by this
+		EEM_Ticket::instance()->update_tickets_sold(EEM_Ticket::instance()->get_all());
+
+		// if there was at least one success and absolutely no errors
+		if ($success && ! $error) {
+			return true;
+		} else {
+			return false;
+		}
+	}
+
+
+	/**
+	 * Processes the array of data, given the knowledge that it's from the same database or a different one,
+	 * and the mapping from temporary IDs to real IDs.
+	 * If the data is from a different database, we treat the primary keys and their corresponding
+	 * foreign keys as "temp Ids", basically identifiers that get mapped to real primary keys
+	 * in the real target database. As items are inserted, their temporary primary keys
+	 * are mapped to the real IDs in the target database. Also, before doing any update or
+	 * insert, we replace all the temp ID which are foreign keys with their mapped real IDs.
+	 * An exception: string primary keys are treated as real IDs, or else we'd need to
+	 * dynamically generate new string primary keys which would be very awkard for the country table etc.
+	 * Also, models with no primary key are strange too. We combine use their primar key INDEX (a
+	 * combination of fields) to create a unique string identifying the row and store
+	 * those in the mapping.
+	 *
+	 * If the data is from the same database, we usually treat primary keys as real IDs.
+	 * An exception is if there is nothing in the database for that ID. If that's the case,
+	 * we need to insert a new row for that ID, and then map from the non-existent ID
+	 * to the newly-inserted real ID.
+	 *
+	 * @param type $csv_data_array
+	 * @param type $export_from_site_a_to_b
+	 * @param type $old_db_to_new_db_mapping
+	 * @return array updated $old_db_to_new_db_mapping
+	 */
+	public function save_data_rows_to_db($csv_data_array, $export_from_site_a_to_b, $old_db_to_new_db_mapping)
+	{
+		foreach ($csv_data_array as $model_name_in_csv_data => $model_data_from_import) {
+			// now check that assumption was correct. If
+			if (EE_Registry::instance()->is_model_name($model_name_in_csv_data)) {
+				$model_name = $model_name_in_csv_data;
+			} else {
+				// no table info in the array and no table name passed to the function?? FAIL
+				EE_Error::add_error(
+					__(
+						'No table information was specified and/or found, therefore the import could not be completed',
+						'event_espresso'
+					),
+					__FILE__,
+					__FUNCTION__,
+					__LINE__
+				);
+				return false;
+			}
+			/* @var $model EEM_Base */
+			$model = EE_Registry::instance()->load_model($model_name);
+
+			// so without further ado, scanning all the data provided for primary keys and their inital values
+			foreach ($model_data_from_import as $model_object_data) {
+				// before we do ANYTHING, make sure the csv row wasn't just completely blank
+				$row_is_completely_empty = true;
+				foreach ($model_object_data as $field) {
+					if ($field) {
+						$row_is_completely_empty = false;
+					}
+				}
+				if ($row_is_completely_empty) {
+					continue;
+				}
+				// find the PK in the row of data (or a combined key if
+				// there is no primary key)
+				if ($model->has_primary_key_field()) {
+					$id_in_csv = $model_object_data[ $model->primary_key_name() ];
+				} else {
+					$id_in_csv = $model->get_index_primary_key_string($model_object_data);
+				}
+
+
+				$model_object_data = $this->_replace_temp_ids_with_mappings(
+					$model_object_data,
+					$model,
+					$old_db_to_new_db_mapping,
+					$export_from_site_a_to_b
+				);
+				// now we need to decide if we're going to add a new model object given the $model_object_data,
+				// or just update.
+				if ($export_from_site_a_to_b) {
+					$what_to_do = $this->_decide_whether_to_insert_or_update_given_data_from_other_db(
+						$id_in_csv,
+						$model_object_data,
+						$model,
+						$old_db_to_new_db_mapping
+					);
+				} else {// this is just a re-import
+					$what_to_do = $this->_decide_whether_to_insert_or_update_given_data_from_same_db(
+						$id_in_csv,
+						$model_object_data,
+						$model,
+						$old_db_to_new_db_mapping
+					);
+				}
+				if ($what_to_do == self::do_nothing) {
+					continue;
+				}
+
+				// double-check we actually want to insert, if that's what we're planning
+				// based on whether this item would be unique in the DB or not
+				if ($what_to_do == self::do_insert) {
+					// we're supposed to be inserting. But wait, will this thing
+					// be acceptable if inserted?
+					$conflicting = $model->get_one_conflicting($model_object_data, false);
+					if ($conflicting) {
+						// ok, this item would conflict if inserted. Just update the item that it conflicts with.
+						$what_to_do = self::do_update;
+						// and if this model has a primary key, remember its mapping
+						if ($model->has_primary_key_field()) {
+							$old_db_to_new_db_mapping[ $model_name ][ $id_in_csv ] = $conflicting->ID();
+							$model_object_data[ $model->primary_key_name() ] = $conflicting->ID();
+						} else {
+							// we want to update this conflicting item, instead of inserting a conflicting item
+							// so we need to make sure they match entirely (its possible that they only conflicted on one field, but we need them to match on other fields
+							// for the WHERE conditions in the update). At the time of this comment, there were no models like this
+							foreach ($model->get_combined_primary_key_fields() as $key_field) {
+								$model_object_data[ $key_field->get_name() ] = $conflicting->get(
+									$key_field->get_name()
+								);
+							}
+						}
+					}
+				}
+				if ($what_to_do == self::do_insert) {
+					$old_db_to_new_db_mapping = $this->_insert_from_data_array(
+						$id_in_csv,
+						$model_object_data,
+						$model,
+						$old_db_to_new_db_mapping
+					);
+				} elseif ($what_to_do == self::do_update) {
+					$old_db_to_new_db_mapping = $this->_update_from_data_array(
+						$id_in_csv,
+						$model_object_data,
+						$model,
+						$old_db_to_new_db_mapping
+					);
+				} else {
+					throw new EE_Error(
+						sprintf(
+							__(
+								'Programming error. We shoudl be inserting or updating, but instead we are being told to "%s", whifh is invalid',
+								'event_espresso'
+							),
+							$what_to_do
+						)
+					);
+				}
+			}
+		}
+		return $old_db_to_new_db_mapping;
+	}
+
+
+	/**
+	 * Decides whether or not to insert, given that this data is from another database.
+	 * So, if the primary key of this $model_object_data already exists in the database,
+	 * it's just a coincidence and we should still insert. The only time we should
+	 * update is when we know what it maps to, or there's something that would
+	 * conflict (and we should instead just update that conflicting thing)
+	 *
+	 * @param string   $id_in_csv
+	 * @param array    $model_object_data        by reference so it can be modified
+	 * @param EEM_Base $model
+	 * @param array    $old_db_to_new_db_mapping by reference so it can be modified
+	 * @return string one of the consts on this class that starts with do_*
+	 */
+	protected function _decide_whether_to_insert_or_update_given_data_from_other_db(
+		$id_in_csv,
+		$model_object_data,
+		$model,
+		$old_db_to_new_db_mapping
+	) {
+		$model_name = $model->get_this_model_name();
+		// if it's a site-to-site export-and-import, see if this modelobject's id
+		// in the old data that we know of
+		if (isset($old_db_to_new_db_mapping[ $model_name ][ $id_in_csv ])) {
+			return self::do_update;
+		} else {
+			return self::do_insert;
+		}
+	}
+
+	/**
+	 * If this thing basically already exists in the database, we want to update it;
+	 * otherwise insert it (ie, someone tweaked the CSV file, or the item was
+	 * deleted in the database so it should be re-inserted)
+	 *
+	 * @param type     $id_in_csv
+	 * @param type     $model_object_data
+	 * @param EEM_Base $model
+	 * @param type     $old_db_to_new_db_mapping
+	 * @return
+	 */
+	protected function _decide_whether_to_insert_or_update_given_data_from_same_db(
+		$id_in_csv,
+		$model_object_data,
+		$model
+	) {
+		// in this case, check if this thing ACTUALLY exists in the database
+		if ($model->get_one_conflicting($model_object_data)) {
+			return self::do_update;
+		} else {
+			return self::do_insert;
+		}
+	}
+
+	/**
+	 * Using the $old_db_to_new_db_mapping array, replaces all the temporary IDs
+	 * with their mapped real IDs. Eg, if importing from site A to B, the mapping
+	 * file may indicate that the ID "my_event_id" maps to an actual event ID of 123.
+	 * So this function searches for any event temp Ids called "my_event_id" and
+	 * replaces them with 123.
+	 * Also, if there is no temp ID for the INT foreign keys from another database,
+	 * replaces them with 0 or the field's default.
+	 *
+	 * @param type     $model_object_data
+	 * @param EEM_Base $model
+	 * @param type     $old_db_to_new_db_mapping
+	 * @param boolean  $export_from_site_a_to_b
+	 * @return array updated model object data with temp IDs removed
+	 */
+	protected function _replace_temp_ids_with_mappings(
+		$model_object_data,
+		$model,
+		$old_db_to_new_db_mapping,
+		$export_from_site_a_to_b
+	) {
+		// if this model object's primary key is in the mapping, replace it
+		if ($model->has_primary_key_field() &&
+			$model->get_primary_key_field()->is_auto_increment() &&
+			isset($old_db_to_new_db_mapping[ $model->get_this_model_name() ]) &&
+			isset(
+				$old_db_to_new_db_mapping[ $model->get_this_model_name() ][ $model_object_data[ $model->primary_key_name() ] ]
+			)) {
+			$model_object_data[ $model->primary_key_name() ] = $old_db_to_new_db_mapping[ $model->get_this_model_name(
+			) ][ $model_object_data[ $model->primary_key_name() ] ];
+		}
+
+		try {
+			$model_name_field = $model->get_field_containing_related_model_name();
+			$models_pointed_to_by_model_name_field = $model_name_field->get_model_names_pointed_to();
+		} catch (EE_Error $e) {
+			$model_name_field = null;
+			$models_pointed_to_by_model_name_field = array();
+		}
+		foreach ($model->field_settings(true) as $field_obj) {
+			if ($field_obj instanceof EE_Foreign_Key_Int_Field) {
+				$models_pointed_to = $field_obj->get_model_names_pointed_to();
+				$found_a_mapping = false;
+				foreach ($models_pointed_to as $model_pointed_to_by_fk) {
+					if ($model_name_field) {
+						$value_of_model_name_field = $model_object_data[ $model_name_field->get_name() ];
+						if ($value_of_model_name_field == $model_pointed_to_by_fk) {
+							$model_object_data[ $field_obj->get_name() ] = $this->_find_mapping_in(
+								$model_object_data[ $field_obj->get_name() ],
+								$model_pointed_to_by_fk,
+								$old_db_to_new_db_mapping,
+								$export_from_site_a_to_b
+							);
+							$found_a_mapping = true;
+							break;
+						}
+					} else {
+						$model_object_data[ $field_obj->get_name() ] = $this->_find_mapping_in(
+							$model_object_data[ $field_obj->get_name() ],
+							$model_pointed_to_by_fk,
+							$old_db_to_new_db_mapping,
+							$export_from_site_a_to_b
+						);
+						$found_a_mapping = true;
+					}
+					// once we've found a mapping for this field no need to continue
+					if ($found_a_mapping) {
+						break;
+					}
+				}
+			} else {
+				// it's a string foreign key (which we leave alone, because those are things
+				// like country names, which we'd really rather not make 2 USAs etc (we'd actually
+				// prefer to just update one)
+				// or it's just a regular value that ought to be replaced
+			}
+		}
+		//
+		if ($model instanceof EEM_Term_Taxonomy) {
+			$model_object_data = $this->_handle_split_term_ids($model_object_data);
+		}
+		return $model_object_data;
+	}
+
+	/**
+	 * If the data was exported PRE-4.2, but then imported POST-4.2, then the term_id
+	 * this term-taxonomy refers to may be out-of-date so we need to update it.
+	 * see https://make.wordpress.org/core/2015/02/16/taxonomy-term-splitting-in-4-2-a-developer-guide/
+	 *
+	 * @param type $model_object_data
+	 * @return array new model object data
+	 */
+	protected function _handle_split_term_ids($model_object_data)
+	{
+		if (isset($model_object_data['term_id'])
+			&& isset($model_object_data['taxonomy'])
+			&& apply_filters(
+				'FHEE__EE_Import__handle_split_term_ids__function_exists',
+				function_exists('wp_get_split_term'),
+				$model_object_data
+			)) {
+			$new_term_id = wp_get_split_term($model_object_data['term_id'], $model_object_data['taxonomy']);
+			if ($new_term_id) {
+				$model_object_data['term_id'] = $new_term_id;
+			}
+		}
+		return $model_object_data;
+	}
+
+	/**
+	 * Given the object's ID and its model's name, find it int he mapping data,
+	 * bearing in mind where it came from
+	 *
+	 * @param type   $object_id
+	 * @param string $model_name
+	 * @param array  $old_db_to_new_db_mapping
+	 * @param type   $export_from_site_a_to_b
+	 * @return int
+	 */
+	protected function _find_mapping_in($object_id, $model_name, $old_db_to_new_db_mapping, $export_from_site_a_to_b)
+	{
+		if (isset($old_db_to_new_db_mapping[ $model_name ][ $object_id ])) {
+			return $old_db_to_new_db_mapping[ $model_name ][ $object_id ];
+		} elseif ($object_id == '0' || $object_id == '') {
+			// leave as-is
+			return $object_id;
+		} elseif ($export_from_site_a_to_b) {
+			// we couldn't find a mapping for this, and it's from a different site,
+			// so blank it out
+			return null;
+		} elseif (! $export_from_site_a_to_b) {
+			// we coudln't find a mapping for this, but it's from thsi DB anyway
+			// so let's just leave it as-is
+			return $object_id;
+		}
+	}
+
+	/**
+	 *
+	 * @param type     $id_in_csv
+	 * @param type     $model_object_data
+	 * @param EEM_Base $model
+	 * @param type     $old_db_to_new_db_mapping
+	 * @return array updated $old_db_to_new_db_mapping
+	 */
+	protected function _insert_from_data_array($id_in_csv, $model_object_data, $model, $old_db_to_new_db_mapping)
+	{
+		// remove the primary key, if there is one (we don't want it for inserts OR updates)
+		// we'll put it back in if we need it
+		if ($model->has_primary_key_field() && $model->get_primary_key_field()->is_auto_increment()) {
+			$effective_id = $model_object_data[ $model->primary_key_name() ];
+			unset($model_object_data[ $model->primary_key_name() ]);
+		} else {
+			$effective_id = $model->get_index_primary_key_string($model_object_data);
+		}
+		// the model takes care of validating the CSV's input
+		try {
+			$new_id = $model->insert($model_object_data);
+			if ($new_id) {
+				$old_db_to_new_db_mapping[ $model->get_this_model_name() ][ $id_in_csv ] = $new_id;
+				$this->_total_inserts++;
+				EE_Error::add_success(
+					sprintf(
+						__("Successfully added new %s (with id %s) with csv data %s", "event_espresso"),
+						$model->get_this_model_name(),
+						$new_id,
+						implode(",", $model_object_data)
+					)
+				);
+			} else {
+				$this->_total_insert_errors++;
+				// put the ID used back in there for the error message
+				if ($model->has_primary_key_field()) {
+					$model_object_data[ $model->primary_key_name() ] = $effective_id;
+				}
+				EE_Error::add_error(
+					sprintf(
+						__("Could not insert new %s with the csv data: %s", "event_espresso"),
+						$model->get_this_model_name(),
+						http_build_query($model_object_data)
+					),
+					__FILE__,
+					__FUNCTION__,
+					__LINE__
+				);
+			}
+		} catch (EE_Error $e) {
+			$this->_total_insert_errors++;
+			if ($model->has_primary_key_field()) {
+				$model_object_data[ $model->primary_key_name() ] = $effective_id;
+			}
+			EE_Error::add_error(
+				sprintf(
+					__("Could not insert new %s with the csv data: %s because %s", "event_espresso"),
+					$model->get_this_model_name(),
+					implode(",", $model_object_data),
+					$e->getMessage()
+				),
+				__FILE__,
+				__FUNCTION__,
+				__LINE__
+			);
+		}
+		return $old_db_to_new_db_mapping;
+	}
+
+	/**
+	 * Given the model object data, finds the row to update and updates it
+	 *
+	 * @param string|int $id_in_csv
+	 * @param array      $model_object_data
+	 * @param EEM_Base   $model
+	 * @param array      $old_db_to_new_db_mapping
+	 * @return array updated $old_db_to_new_db_mapping
+	 */
+	protected function _update_from_data_array($id_in_csv, $model_object_data, $model, $old_db_to_new_db_mapping)
+	{
+		try {
+			// let's keep two copies of the model object data:
+			// one for performing an update, one for everthing else
+			$model_object_data_for_update = $model_object_data;
+			if ($model->has_primary_key_field()) {
+				$conditions = array($model->primary_key_name() => $model_object_data[ $model->primary_key_name() ]);
+				// remove the primary key because we shouldn't use it for updating
+				unset($model_object_data_for_update[ $model->primary_key_name() ]);
+			} elseif ($model->get_combined_primary_key_fields() > 1) {
+				$conditions = array();
+				foreach ($model->get_combined_primary_key_fields() as $key_field) {
+					$conditions[ $key_field->get_name() ] = $model_object_data[ $key_field->get_name() ];
+				}
+			} else {
+				$model->primary_key_name(
+				);// this shoudl just throw an exception, explaining that we dont have a primary key (or a combine dkey)
+			}
+
+			$success = $model->update($model_object_data_for_update, array($conditions));
+			if ($success) {
+				$this->_total_updates++;
+				EE_Error::add_success(
+					sprintf(
+						__("Successfully updated %s with csv data %s", "event_espresso"),
+						$model->get_this_model_name(),
+						implode(",", $model_object_data_for_update)
+					)
+				);
+				// we should still record the mapping even though it was an update
+				// because if we were going to insert somethign but it was going to conflict
+				// we would have last-minute decided to update. So we'd like to know what we updated
+				// and so we record what record ended up being updated using the mapping
+				if ($model->has_primary_key_field()) {
+					$new_key_for_mapping = $model_object_data[ $model->primary_key_name() ];
+				} else {
+					// no primary key just a combined key
+					$new_key_for_mapping = $model->get_index_primary_key_string($model_object_data);
+				}
+				$old_db_to_new_db_mapping[ $model->get_this_model_name() ][ $id_in_csv ] = $new_key_for_mapping;
+			} else {
+				$matched_items = $model->get_all(array($conditions));
+				if (! $matched_items) {
+					// no items were matched (so we shouldn't have updated)... but then we should have inserted? what the heck?
+					$this->_total_update_errors++;
+					EE_Error::add_error(
+						sprintf(
+							__(
+								"Could not update %s with the csv data: '%s' for an unknown reason (using WHERE conditions %s)",
+								"event_espresso"
+							),
+							$model->get_this_model_name(),
+							http_build_query($model_object_data),
+							http_build_query($conditions)
+						),
+						__FILE__,
+						__FUNCTION__,
+						__LINE__
+					);
+				} else {
+					$this->_total_updates++;
+					EE_Error::add_success(
+						sprintf(
+							__(
+								"%s with csv data '%s' was found in the database and didn't need updating because all the data is identical.",
+								"event_espresso"
+							),
+							$model->get_this_model_name(),
+							implode(",", $model_object_data)
+						)
+					);
+				}
+			}
+		} catch (EE_Error $e) {
+			$this->_total_update_errors++;
+			$basic_message = sprintf(
+				__("Could not update %s with the csv data: %s because %s", "event_espresso"),
+				$model->get_this_model_name(),
+				implode(",", $model_object_data),
+				$e->getMessage()
+			);
+			$debug_message = $basic_message . ' Stack trace: ' . $e->getTraceAsString();
+			EE_Error::add_error("$basic_message | $debug_message", __FILE__, __FUNCTION__, __LINE__);
+		}
+		return $old_db_to_new_db_mapping;
+	}
+
+	/**
+	 * Gets the number of inserts performed since importer was instantiated or reset
+	 *
+	 * @return int
+	 */
+	public function get_total_inserts()
+	{
+		return $this->_total_inserts;
+	}
+
+	/**
+	 *  Gets the number of insert errors since importer was instantiated or reset
+	 *
+	 * @return int
+	 */
+	public function get_total_insert_errors()
+	{
+		return $this->_total_insert_errors;
+	}
+
+	/**
+	 *  Gets the number of updates performed since importer was instantiated or reset
+	 *
+	 * @return int
+	 */
+	public function get_total_updates()
+	{
+		return $this->_total_updates;
+	}
+
+	/**
+	 *  Gets the number of update errors since importer was instantiated or reset
+	 *
+	 * @return int
+	 */
+	public function get_total_update_errors()
+	{
+		return $this->_total_update_errors;
+	}
 }

Spacing +40 added lines, -40 removed lines

@@ -135,7 +135,7 @@ 
     public function import()
     {
 
-        require_once(EE_CLASSES . 'EE_CSV.class.php');
+        require_once(EE_CLASSES.'EE_CSV.class.php');
         $this->EE_CSV = EE_CSV::instance();
 
         if (isset($_REQUEST['import'])) {
@@ -179,18 +179,18 @@ 
                         break;
                 }
 
-                if (! $error_msg) {
+                if ( ! $error_msg) {
                     $filename = $_FILES['file']['name'][0];
                     $file_ext = substr(strrchr($filename, '.'), 1);
                     $file_type = $_FILES['file']['type'][0];
                     $temp_file = $_FILES['file']['tmp_name'][0];
-                    $filesize = $_FILES['file']['size'][0] / 1024;// convert from bytes to KB
+                    $filesize = $_FILES['file']['size'][0] / 1024; // convert from bytes to KB
 
                     if ($file_ext == 'csv') {
-                        $max_upload = $this->EE_CSV->get_max_upload_size();// max upload size in KB
+                        $max_upload = $this->EE_CSV->get_max_upload_size(); // max upload size in KB
                         if ($filesize < $max_upload || true) {
                             $wp_upload_dir = str_replace(array('\\', '/'), DS, wp_upload_dir());
-                            $path_to_file = $wp_upload_dir['basedir'] . DS . 'espresso' . DS . $filename;
+                            $path_to_file = $wp_upload_dir['basedir'].DS.'espresso'.DS.$filename;
 
                             if (move_uploaded_file($temp_file, $path_to_file)) {
                                 // convert csv to array
@@ -324,8 +324,8 @@ 
         // begin looking through the $csv_data_array, expecting the toplevel key to be the model's name...
         $old_site_url = 'none-specified';
         // hanlde metadata
-        if (isset($csv_data_array[ EE_CSV::metadata_header ])) {
-            $csv_metadata = array_shift($csv_data_array[ EE_CSV::metadata_header ]);
+        if (isset($csv_data_array[EE_CSV::metadata_header])) {
+            $csv_metadata = array_shift($csv_data_array[EE_CSV::metadata_header]);
             // ok so its metadata, dont try to save it to ehte db obviously...
             if (isset($csv_metadata['site_url']) && $csv_metadata['site_url'] == site_url()) {
                 EE_Error::add_attention(
@@ -350,14 +350,14 @@ 
                     )
                 );
             };
-            unset($csv_data_array[ EE_CSV::metadata_header ]);
+            unset($csv_data_array[EE_CSV::metadata_header]);
         }
         /**
          * @var $old_db_to_new_db_mapping 2d array: toplevel keys being model names, bottom-level keys being the original key, and
          * the value will be the newly-inserted ID.
          * If we have already imported data from the same website via CSV, it shoudl be kept in this wp option
          */
-        $old_db_to_new_db_mapping = get_option('ee_id_mapping_from' . sanitize_title($old_site_url), array());
+        $old_db_to_new_db_mapping = get_option('ee_id_mapping_from'.sanitize_title($old_site_url), array());
         if ($old_db_to_new_db_mapping) {
             EE_Error::add_attention(
                 sprintf(
@@ -377,7 +377,7 @@ 
         );
 
         // save the mapping from old db to new db in case they try re-importing the same data from the same website again
-        update_option('ee_id_mapping_from' . sanitize_title($old_site_url), $old_db_to_new_db_mapping);
+        update_option('ee_id_mapping_from'.sanitize_title($old_site_url), $old_db_to_new_db_mapping);
 
         if ($this->_total_updates > 0) {
             EE_Error::add_success(
@@ -500,7 +500,7 @@ 
                 // find the PK in the row of data (or a combined key if
                 // there is no primary key)
                 if ($model->has_primary_key_field()) {
-                    $id_in_csv = $model_object_data[ $model->primary_key_name() ];
+                    $id_in_csv = $model_object_data[$model->primary_key_name()];
                 } else {
                     $id_in_csv = $model->get_index_primary_key_string($model_object_data);
                 }
@@ -544,14 +544,14 @@ 
                         $what_to_do = self::do_update;
                         // and if this model has a primary key, remember its mapping
                         if ($model->has_primary_key_field()) {
-                            $old_db_to_new_db_mapping[ $model_name ][ $id_in_csv ] = $conflicting->ID();
-                            $model_object_data[ $model->primary_key_name() ] = $conflicting->ID();
+                            $old_db_to_new_db_mapping[$model_name][$id_in_csv] = $conflicting->ID();
+                            $model_object_data[$model->primary_key_name()] = $conflicting->ID();
                         } else {
                             // we want to update this conflicting item, instead of inserting a conflicting item
                             // so we need to make sure they match entirely (its possible that they only conflicted on one field, but we need them to match on other fields
                             // for the WHERE conditions in the update). At the time of this comment, there were no models like this
                             foreach ($model->get_combined_primary_key_fields() as $key_field) {
-                                $model_object_data[ $key_field->get_name() ] = $conflicting->get(
+                                $model_object_data[$key_field->get_name()] = $conflicting->get(
                                     $key_field->get_name()
                                 );
                             }
@@ -611,7 +611,7 @@ 
         $model_name = $model->get_this_model_name();
         // if it's a site-to-site export-and-import, see if this modelobject's id
         // in the old data that we know of
-        if (isset($old_db_to_new_db_mapping[ $model_name ][ $id_in_csv ])) {
+        if (isset($old_db_to_new_db_mapping[$model_name][$id_in_csv])) {
             return self::do_update;
         } else {
             return self::do_insert;
@@ -666,12 +666,12 @@ 
         // if this model object's primary key is in the mapping, replace it
         if ($model->has_primary_key_field() &&
             $model->get_primary_key_field()->is_auto_increment() &&
-            isset($old_db_to_new_db_mapping[ $model->get_this_model_name() ]) &&
+            isset($old_db_to_new_db_mapping[$model->get_this_model_name()]) &&
             isset(
-                $old_db_to_new_db_mapping[ $model->get_this_model_name() ][ $model_object_data[ $model->primary_key_name() ] ]
+                $old_db_to_new_db_mapping[$model->get_this_model_name()][$model_object_data[$model->primary_key_name()]]
             )) {
-            $model_object_data[ $model->primary_key_name() ] = $old_db_to_new_db_mapping[ $model->get_this_model_name(
-            ) ][ $model_object_data[ $model->primary_key_name() ] ];
+            $model_object_data[$model->primary_key_name()] = $old_db_to_new_db_mapping[$model->get_this_model_name(
+            )][$model_object_data[$model->primary_key_name()]];
         }
 
         try {
@@ -687,10 +687,10 @@ 
                 $found_a_mapping = false;
                 foreach ($models_pointed_to as $model_pointed_to_by_fk) {
                     if ($model_name_field) {
-                        $value_of_model_name_field = $model_object_data[ $model_name_field->get_name() ];
+                        $value_of_model_name_field = $model_object_data[$model_name_field->get_name()];
                         if ($value_of_model_name_field == $model_pointed_to_by_fk) {
-                            $model_object_data[ $field_obj->get_name() ] = $this->_find_mapping_in(
-                                $model_object_data[ $field_obj->get_name() ],
+                            $model_object_data[$field_obj->get_name()] = $this->_find_mapping_in(
+                                $model_object_data[$field_obj->get_name()],
                                 $model_pointed_to_by_fk,
                                 $old_db_to_new_db_mapping,
                                 $export_from_site_a_to_b
@@ -699,8 +699,8 @@ 
                             break;
                         }
                     } else {
-                        $model_object_data[ $field_obj->get_name() ] = $this->_find_mapping_in(
-                            $model_object_data[ $field_obj->get_name() ],
+                        $model_object_data[$field_obj->get_name()] = $this->_find_mapping_in(
+                            $model_object_data[$field_obj->get_name()],
                             $model_pointed_to_by_fk,
                             $old_db_to_new_db_mapping,
                             $export_from_site_a_to_b
@@ -763,8 +763,8 @@ 
      */
     protected function _find_mapping_in($object_id, $model_name, $old_db_to_new_db_mapping, $export_from_site_a_to_b)
     {
-        if (isset($old_db_to_new_db_mapping[ $model_name ][ $object_id ])) {
-            return $old_db_to_new_db_mapping[ $model_name ][ $object_id ];
+        if (isset($old_db_to_new_db_mapping[$model_name][$object_id])) {
+            return $old_db_to_new_db_mapping[$model_name][$object_id];
         } elseif ($object_id == '0' || $object_id == '') {
             // leave as-is
             return $object_id;
@@ -772,7 +772,7 @@ 
             // we couldn't find a mapping for this, and it's from a different site,
             // so blank it out
             return null;
-        } elseif (! $export_from_site_a_to_b) {
+        } elseif ( ! $export_from_site_a_to_b) {
             // we coudln't find a mapping for this, but it's from thsi DB anyway
             // so let's just leave it as-is
             return $object_id;
@@ -792,8 +792,8 @@ 
         // remove the primary key, if there is one (we don't want it for inserts OR updates)
         // we'll put it back in if we need it
         if ($model->has_primary_key_field() && $model->get_primary_key_field()->is_auto_increment()) {
-            $effective_id = $model_object_data[ $model->primary_key_name() ];
-            unset($model_object_data[ $model->primary_key_name() ]);
+            $effective_id = $model_object_data[$model->primary_key_name()];
+            unset($model_object_data[$model->primary_key_name()]);
         } else {
             $effective_id = $model->get_index_primary_key_string($model_object_data);
         }
@@ -801,7 +801,7 @@ 
         try {
             $new_id = $model->insert($model_object_data);
             if ($new_id) {
-                $old_db_to_new_db_mapping[ $model->get_this_model_name() ][ $id_in_csv ] = $new_id;
+                $old_db_to_new_db_mapping[$model->get_this_model_name()][$id_in_csv] = $new_id;
                 $this->_total_inserts++;
                 EE_Error::add_success(
                     sprintf(
@@ -815,7 +815,7 @@ 
                 $this->_total_insert_errors++;
                 // put the ID used back in there for the error message
                 if ($model->has_primary_key_field()) {
-                    $model_object_data[ $model->primary_key_name() ] = $effective_id;
+                    $model_object_data[$model->primary_key_name()] = $effective_id;
                 }
                 EE_Error::add_error(
                     sprintf(
@@ -831,7 +831,7 @@ 
         } catch (EE_Error $e) {
             $this->_total_insert_errors++;
             if ($model->has_primary_key_field()) {
-                $model_object_data[ $model->primary_key_name() ] = $effective_id;
+                $model_object_data[$model->primary_key_name()] = $effective_id;
             }
             EE_Error::add_error(
                 sprintf(
@@ -864,17 +864,17 @@ 
             // one for performing an update, one for everthing else
             $model_object_data_for_update = $model_object_data;
             if ($model->has_primary_key_field()) {
-                $conditions = array($model->primary_key_name() => $model_object_data[ $model->primary_key_name() ]);
+                $conditions = array($model->primary_key_name() => $model_object_data[$model->primary_key_name()]);
                 // remove the primary key because we shouldn't use it for updating
-                unset($model_object_data_for_update[ $model->primary_key_name() ]);
+                unset($model_object_data_for_update[$model->primary_key_name()]);
             } elseif ($model->get_combined_primary_key_fields() > 1) {
                 $conditions = array();
                 foreach ($model->get_combined_primary_key_fields() as $key_field) {
-                    $conditions[ $key_field->get_name() ] = $model_object_data[ $key_field->get_name() ];
+                    $conditions[$key_field->get_name()] = $model_object_data[$key_field->get_name()];
                 }
             } else {
                 $model->primary_key_name(
-                );// this shoudl just throw an exception, explaining that we dont have a primary key (or a combine dkey)
+                ); // this shoudl just throw an exception, explaining that we dont have a primary key (or a combine dkey)
             }
 
             $success = $model->update($model_object_data_for_update, array($conditions));
@@ -892,15 +892,15 @@ 
                 // we would have last-minute decided to update. So we'd like to know what we updated
                 // and so we record what record ended up being updated using the mapping
                 if ($model->has_primary_key_field()) {
-                    $new_key_for_mapping = $model_object_data[ $model->primary_key_name() ];
+                    $new_key_for_mapping = $model_object_data[$model->primary_key_name()];
                 } else {
                     // no primary key just a combined key
                     $new_key_for_mapping = $model->get_index_primary_key_string($model_object_data);
                 }
-                $old_db_to_new_db_mapping[ $model->get_this_model_name() ][ $id_in_csv ] = $new_key_for_mapping;
+                $old_db_to_new_db_mapping[$model->get_this_model_name()][$id_in_csv] = $new_key_for_mapping;
             } else {
                 $matched_items = $model->get_all(array($conditions));
-                if (! $matched_items) {
+                if ( ! $matched_items) {
                     // no items were matched (so we shouldn't have updated)... but then we should have inserted? what the heck?
                     $this->_total_update_errors++;
                     EE_Error::add_error(
@@ -939,7 +939,7 @@ 
                 implode(",", $model_object_data),
                 $e->getMessage()
             );
-            $debug_message = $basic_message . ' Stack trace: ' . $e->getTraceAsString();
+            $debug_message = $basic_message.' Stack trace: '.$e->getTraceAsString();
             EE_Error::add_error("$basic_message | $debug_message", __FILE__, __FUNCTION__, __LINE__);
         }
         return $old_db_to_new_db_mapping;

core/db_classes/EE_Line_Item.class.php

Indentation +1426 added lines, -1426 removed lines

@@ -14,1430 +14,1430 @@
 class EE_Line_Item extends EE_Base_Class implements EEI_Line_Item
 {
 
-    /**
-     * for children line items (currently not a normal relation)
-     *
-     * @type EE_Line_Item[]
-     */
-    protected $_children = array();
-
-    /**
-     * for the parent line item
-     *
-     * @var EE_Line_Item
-     */
-    protected $_parent;
-
-
-    /**
-     *
-     * @param array  $props_n_values          incoming values
-     * @param string $timezone                incoming timezone (if not set the timezone set for the website will be
-     *                                        used.)
-     * @param array  $date_formats            incoming date_formats in an array where the first value is the
-     *                                        date_format and the second value is the time format
-     * @return EE_Line_Item
-     * @throws EE_Error
-     */
-    public static function new_instance($props_n_values = array(), $timezone = null, $date_formats = array())
-    {
-        $has_object = parent::_check_for_object($props_n_values, __CLASS__, $timezone, $date_formats);
-        return $has_object
-            ? $has_object
-            : new self($props_n_values, false, $timezone);
-    }
-
-
-    /**
-     * @param array  $props_n_values  incoming values from the database
-     * @param string $timezone        incoming timezone as set by the model.  If not set the timezone for
-     *                                the website will be used.
-     * @return EE_Line_Item
-     * @throws EE_Error
-     */
-    public static function new_instance_from_db($props_n_values = array(), $timezone = null)
-    {
-        return new self($props_n_values, true, $timezone);
-    }
-
-
-    /**
-     * Adds some defaults if they're not specified
-     *
-     * @param array  $fieldValues
-     * @param bool   $bydb
-     * @param string $timezone
-     * @throws EE_Error
-     */
-    protected function __construct($fieldValues = array(), $bydb = false, $timezone = '')
-    {
-        parent::__construct($fieldValues, $bydb, $timezone);
-        if (! $this->get('LIN_code')) {
-            $this->set_code($this->generate_code());
-        }
-    }
-
-
-    /**
-     * Gets ID
-     *
-     * @return int
-     * @throws EE_Error
-     */
-    public function ID()
-    {
-        return $this->get('LIN_ID');
-    }
-
-
-    /**
-     * Gets TXN_ID
-     *
-     * @return int
-     * @throws EE_Error
-     */
-    public function TXN_ID()
-    {
-        return $this->get('TXN_ID');
-    }
-
-
-    /**
-     * Sets TXN_ID
-     *
-     * @param int $TXN_ID
-     * @throws EE_Error
-     */
-    public function set_TXN_ID($TXN_ID)
-    {
-        $this->set('TXN_ID', $TXN_ID);
-    }
-
-
-    /**
-     * Gets name
-     *
-     * @return string
-     * @throws EE_Error
-     */
-    public function name()
-    {
-        $name = $this->get('LIN_name');
-        if (! $name) {
-            $name = ucwords(str_replace('-', ' ', $this->type()));
-        }
-        return $name;
-    }
-
-
-    /**
-     * Sets name
-     *
-     * @param string $name
-     * @throws EE_Error
-     */
-    public function set_name($name)
-    {
-        $this->set('LIN_name', $name);
-    }
-
-
-    /**
-     * Gets desc
-     *
-     * @return string
-     * @throws EE_Error
-     */
-    public function desc()
-    {
-        return $this->get('LIN_desc');
-    }
-
-
-    /**
-     * Sets desc
-     *
-     * @param string $desc
-     * @throws EE_Error
-     */
-    public function set_desc($desc)
-    {
-        $this->set('LIN_desc', $desc);
-    }
-
-
-    /**
-     * Gets quantity
-     *
-     * @return int
-     * @throws EE_Error
-     */
-    public function quantity()
-    {
-        return $this->get('LIN_quantity');
-    }
-
-
-    /**
-     * Sets quantity
-     *
-     * @param int $quantity
-     * @throws EE_Error
-     */
-    public function set_quantity($quantity)
-    {
-        $this->set('LIN_quantity', max($quantity, 0));
-    }
-
-
-    /**
-     * Gets item_id
-     *
-     * @return string
-     * @throws EE_Error
-     */
-    public function OBJ_ID()
-    {
-        return $this->get('OBJ_ID');
-    }
-
-
-    /**
-     * Sets item_id
-     *
-     * @param string $item_id
-     * @throws EE_Error
-     */
-    public function set_OBJ_ID($item_id)
-    {
-        $this->set('OBJ_ID', $item_id);
-    }
-
-
-    /**
-     * Gets item_type
-     *
-     * @return string
-     * @throws EE_Error
-     */
-    public function OBJ_type()
-    {
-        return $this->get('OBJ_type');
-    }
-
-
-    /**
-     * Gets item_type
-     *
-     * @return string
-     * @throws EE_Error
-     */
-    public function OBJ_type_i18n()
-    {
-        $obj_type = $this->OBJ_type();
-        switch ($obj_type) {
-            case 'Event':
-                $obj_type = __('Event', 'event_espresso');
-                break;
-            case 'Price':
-                $obj_type = __('Price', 'event_espresso');
-                break;
-            case 'Promotion':
-                $obj_type = __('Promotion', 'event_espresso');
-                break;
-            case 'Ticket':
-                $obj_type = __('Ticket', 'event_espresso');
-                break;
-            case 'Transaction':
-                $obj_type = __('Transaction', 'event_espresso');
-                break;
-        }
-        return apply_filters('FHEE__EE_Line_Item__OBJ_type_i18n', $obj_type, $this);
-    }
-
-
-    /**
-     * Sets item_type
-     *
-     * @param string $OBJ_type
-     * @throws EE_Error
-     */
-    public function set_OBJ_type($OBJ_type)
-    {
-        $this->set('OBJ_type', $OBJ_type);
-    }
-
-
-    /**
-     * Gets unit_price
-     *
-     * @return float
-     * @throws EE_Error
-     */
-    public function unit_price()
-    {
-        return $this->get('LIN_unit_price');
-    }
-
-
-    /**
-     * Sets unit_price
-     *
-     * @param float $unit_price
-     * @throws EE_Error
-     */
-    public function set_unit_price($unit_price)
-    {
-        $this->set('LIN_unit_price', $unit_price);
-    }
-
-
-    /**
-     * Checks if this item is a percentage modifier or not
-     *
-     * @return boolean
-     * @throws EE_Error
-     */
-    public function is_percent()
-    {
-        if ($this->is_tax_sub_total()) {
-            // tax subtotals HAVE a percent on them, that percentage only applies
-            // to taxable items, so its' an exception. Treat it like a flat line item
-            return false;
-        }
-        $unit_price = abs($this->get('LIN_unit_price'));
-        $percent = abs($this->get('LIN_percent'));
-        if ($unit_price < .001 && $percent) {
-            return true;
-        }
-        if ($unit_price >= .001 && ! $percent) {
-            return false;
-        }
-        if ($unit_price >= .001 && $percent) {
-            throw new EE_Error(
-                sprintf(
-                    esc_html__('A Line Item can not have a unit price of (%s) AND a percent (%s)!', 'event_espresso'),
-                    $unit_price,
-                    $percent
-                )
-            );
-        }
-        // if they're both 0, assume its not a percent item
-        return false;
-    }
-
-
-    /**
-     * Gets percent (between 100-.001)
-     *
-     * @return float
-     * @throws EE_Error
-     */
-    public function percent()
-    {
-        return $this->get('LIN_percent');
-    }
-
-
-    /**
-     * Sets percent (between 100-0.01)
-     *
-     * @param float $percent
-     * @throws EE_Error
-     */
-    public function set_percent($percent)
-    {
-        $this->set('LIN_percent', $percent);
-    }
-
-
-    /**
-     * Gets total
-     *
-     * @return float
-     * @throws EE_Error
-     */
-    public function total()
-    {
-        return $this->get('LIN_total');
-    }
-
-
-    /**
-     * Sets total
-     *
-     * @param float $total
-     * @throws EE_Error
-     */
-    public function set_total($total)
-    {
-        $this->set('LIN_total', $total);
-    }
-
-
-    /**
-     * Gets order
-     *
-     * @return int
-     * @throws EE_Error
-     */
-    public function order()
-    {
-        return $this->get('LIN_order');
-    }
-
-
-    /**
-     * Sets order
-     *
-     * @param int $order
-     * @throws EE_Error
-     */
-    public function set_order($order)
-    {
-        $this->set('LIN_order', $order);
-    }
-
-
-    /**
-     * Gets parent
-     *
-     * @return int
-     * @throws EE_Error
-     */
-    public function parent_ID()
-    {
-        return $this->get('LIN_parent');
-    }
-
-
-    /**
-     * Sets parent
-     *
-     * @param int $parent
-     * @throws EE_Error
-     */
-    public function set_parent_ID($parent)
-    {
-        $this->set('LIN_parent', $parent);
-    }
-
-
-    /**
-     * Gets type
-     *
-     * @return string
-     * @throws EE_Error
-     */
-    public function type()
-    {
-        return $this->get('LIN_type');
-    }
-
-
-    /**
-     * Sets type
-     *
-     * @param string $type
-     * @throws EE_Error
-     */
-    public function set_type($type)
-    {
-        $this->set('LIN_type', $type);
-    }
-
-
-    /**
-     * Gets the line item of which this item is a composite. Eg, if this is a subtotal, the parent might be a total\
-     * If this line item is saved to the DB, fetches the parent from the DB. However, if this line item isn't in the DB
-     * it uses its cached reference to its parent line item (which would have been set by `EE_Line_Item::set_parent()`
-     * or indirectly by `EE_Line_item::add_child_line_item()`)
-     *
-     * @return EE_Base_Class|EE_Line_Item
-     * @throws EE_Error
-     */
-    public function parent()
-    {
-        return $this->ID()
-            ? $this->get_model()->get_one_by_ID($this->parent_ID())
-            : $this->_parent;
-    }
-
-
-    /**
-     * Gets ALL the children of this line item (ie, all the parts that contribute towards this total).
-     *
-     * @return EE_Base_Class[]|EE_Line_Item[]
-     * @throws EE_Error
-     */
-    public function children()
-    {
-        if ($this->ID()) {
-            return $this->get_model()->get_all(
-                array(
-                    array('LIN_parent' => $this->ID()),
-                    'order_by' => array('LIN_order' => 'ASC'),
-                )
-            );
-        }
-        if (! is_array($this->_children)) {
-            $this->_children = array();
-        }
-        return $this->_children;
-    }
-
-
-    /**
-     * Gets code
-     *
-     * @return string
-     * @throws EE_Error
-     */
-    public function code()
-    {
-        return $this->get('LIN_code');
-    }
-
-
-    /**
-     * Sets code
-     *
-     * @param string $code
-     * @throws EE_Error
-     */
-    public function set_code($code)
-    {
-        $this->set('LIN_code', $code);
-    }
-
-
-    /**
-     * Gets is_taxable
-     *
-     * @return boolean
-     * @throws EE_Error
-     */
-    public function is_taxable()
-    {
-        return $this->get('LIN_is_taxable');
-    }
-
-
-    /**
-     * Sets is_taxable
-     *
-     * @param boolean $is_taxable
-     * @throws EE_Error
-     */
-    public function set_is_taxable($is_taxable)
-    {
-        $this->set('LIN_is_taxable', $is_taxable);
-    }
-
-
-    /**
-     * Gets the object that this model-joins-to.
-     * returns one of the model objects that the field OBJ_ID can point to... see the 'OBJ_ID' field on
-     * EEM_Promotion_Object
-     *
-     *        Eg, if this line item join model object is for a ticket, this will return the EE_Ticket object
-     *
-     * @return EE_Base_Class | NULL
-     * @throws EE_Error
-     */
-    public function get_object()
-    {
-        $model_name_of_related_obj = $this->OBJ_type();
-        return $this->get_model()->has_relation($model_name_of_related_obj)
-            ? $this->get_first_related($model_name_of_related_obj)
-            : null;
-    }
-
-
-    /**
-     * Like EE_Line_Item::get_object(), but can only ever actually return an EE_Ticket.
-     * (IE, if this line item is for a price or something else, will return NULL)
-     *
-     * @param array $query_params
-     * @return EE_Base_Class|EE_Ticket
-     * @throws EE_Error
-     */
-    public function ticket($query_params = array())
-    {
-        // we're going to assume that when this method is called we always want to receive the attached ticket EVEN if that ticket is archived.  This can be overridden via the incoming $query_params argument
-        $remove_defaults = array('default_where_conditions' => 'none');
-        $query_params = array_merge($remove_defaults, $query_params);
-        return $this->get_first_related('Ticket', $query_params);
-    }
-
-
-    /**
-     * Gets the EE_Datetime that's related to the ticket, IF this is for a ticket
-     *
-     * @return EE_Datetime | NULL
-     * @throws EE_Error
-     */
-    public function get_ticket_datetime()
-    {
-        if ($this->OBJ_type() === 'Ticket') {
-            $ticket = $this->ticket();
-            if ($ticket instanceof EE_Ticket) {
-                $datetime = $ticket->first_datetime();
-                if ($datetime instanceof EE_Datetime) {
-                    return $datetime;
-                }
-            }
-        }
-        return null;
-    }
-
-
-    /**
-     * Gets the event's name that's related to the ticket, if this is for
-     * a ticket
-     *
-     * @return string
-     * @throws EE_Error
-     */
-    public function ticket_event_name()
-    {
-        $event_name = esc_html__('Unknown', 'event_espresso');
-        $event = $this->ticket_event();
-        if ($event instanceof EE_Event) {
-            $event_name = $event->name();
-        }
-        return $event_name;
-    }
-
-
-    /**
-     * Gets the event that's related to the ticket, if this line item represents a ticket.
-     *
-     * @return EE_Event|null
-     * @throws EE_Error
-     */
-    public function ticket_event()
-    {
-        $event = null;
-        $ticket = $this->ticket();
-        if ($ticket instanceof EE_Ticket) {
-            $datetime = $ticket->first_datetime();
-            if ($datetime instanceof EE_Datetime) {
-                $event = $datetime->event();
-            }
-        }
-        return $event;
-    }
-
-
-    /**
-     * Gets the first datetime for this lien item, assuming it's for a ticket
-     *
-     * @param string $date_format
-     * @param string $time_format
-     * @return string
-     * @throws EE_Error
-     */
-    public function ticket_datetime_start($date_format = '', $time_format = '')
-    {
-        $first_datetime_string = esc_html__('Unknown', 'event_espresso');
-        $datetime = $this->get_ticket_datetime();
-        if ($datetime) {
-            $first_datetime_string = $datetime->start_date_and_time($date_format, $time_format);
-        }
-        return $first_datetime_string;
-    }
-
-
-    /**
-     * Adds the line item as a child to this line item. If there is another child line
-     * item with the same LIN_code, it is overwritten by this new one
-     *
-     * @param EEI_Line_Item $line_item
-     * @param bool          $set_order
-     * @return bool success
-     * @throws EE_Error
-     */
-    public function add_child_line_item(EEI_Line_Item $line_item, $set_order = true)
-    {
-        // should we calculate the LIN_order for this line item ?
-        if ($set_order || $line_item->order() === null) {
-            $line_item->set_order(count($this->children()));
-        }
-        if ($this->ID()) {
-            // check for any duplicate line items (with the same code), if so, this replaces it
-            $line_item_with_same_code = $this->get_child_line_item($line_item->code());
-            if ($line_item_with_same_code instanceof EE_Line_Item && $line_item_with_same_code !== $line_item) {
-                $this->delete_child_line_item($line_item_with_same_code->code());
-            }
-            $line_item->set_parent_ID($this->ID());
-            if ($this->TXN_ID()) {
-                $line_item->set_TXN_ID($this->TXN_ID());
-            }
-            return $line_item->save();
-        }
-        $this->_children[ $line_item->code() ] = $line_item;
-        if ($line_item->parent() !== $this) {
-            $line_item->set_parent($this);
-        }
-        return true;
-    }
-
-
-    /**
-     * Similar to EE_Base_Class::_add_relation_to, except this isn't a normal relation.
-     * If this line item is saved to the DB, this is just a wrapper for set_parent_ID() and save()
-     * However, if this line item is NOT saved to the DB, this just caches the parent on
-     * the EE_Line_Item::_parent property.
-     *
-     * @param EE_Line_Item $line_item
-     * @throws EE_Error
-     */
-    public function set_parent($line_item)
-    {
-        if ($this->ID()) {
-            if (! $line_item->ID()) {
-                $line_item->save();
-            }
-            $this->set_parent_ID($line_item->ID());
-            $this->save();
-        } else {
-            $this->_parent = $line_item;
-            $this->set_parent_ID($line_item->ID());
-        }
-    }
-
-
-    /**
-     * Gets the child line item as specified by its code. Because this returns an object (by reference)
-     * you can modify this child line item and the parent (this object) can know about them
-     * because it also has a reference to that line item
-     *
-     * @param string $code
-     * @return EE_Base_Class|EE_Line_Item|EE_Soft_Delete_Base_Class|NULL
-     * @throws EE_Error
-     */
-    public function get_child_line_item($code)
-    {
-        if ($this->ID()) {
-            return $this->get_model()->get_one(
-                array(array('LIN_parent' => $this->ID(), 'LIN_code' => $code))
-            );
-        }
-        return isset($this->_children[ $code ])
-            ? $this->_children[ $code ]
-            : null;
-    }
-
-
-    /**
-     * Returns how many items are deleted (or, if this item has not been saved ot the DB yet, just how many it HAD
-     * cached on it)
-     *
-     * @return int
-     * @throws EE_Error
-     */
-    public function delete_children_line_items()
-    {
-        if ($this->ID()) {
-            return $this->get_model()->delete(array(array('LIN_parent' => $this->ID())));
-        }
-        $count = count($this->_children);
-        $this->_children = array();
-        return $count;
-    }
-
-
-    /**
-     * If this line item has been saved to the DB, deletes its child with LIN_code == $code. If this line
-     * HAS NOT been saved to the DB, removes the child line item with index $code.
-     * Also searches through the child's children for a matching line item. However, once a line item has been found
-     * and deleted, stops searching (so if there are line items with duplicate codes, only the first one found will be
-     * deleted)
-     *
-     * @param string $code
-     * @param bool   $stop_search_once_found
-     * @return int count of items deleted (or simply removed from the line item's cache, if not has not been saved to
-     *             the DB yet)
-     * @throws EE_Error
-     */
-    public function delete_child_line_item($code, $stop_search_once_found = true)
-    {
-        if ($this->ID()) {
-            $items_deleted = 0;
-            if ($this->code() === $code) {
-                $items_deleted += EEH_Line_Item::delete_all_child_items($this);
-                $items_deleted += (int) $this->delete();
-                if ($stop_search_once_found) {
-                    return $items_deleted;
-                }
-            }
-            foreach ($this->children() as $child_line_item) {
-                $items_deleted += $child_line_item->delete_child_line_item($code, $stop_search_once_found);
-            }
-            return $items_deleted;
-        }
-        if (isset($this->_children[ $code ])) {
-            unset($this->_children[ $code ]);
-            return 1;
-        }
-        return 0;
-    }
-
-
-    /**
-     * If this line item is in the database, is of the type subtotal, and
-     * has no children, why do we have it? It should be deleted so this function
-     * does that
-     *
-     * @return boolean
-     * @throws EE_Error
-     */
-    public function delete_if_childless_subtotal()
-    {
-        if ($this->ID() && $this->type() === EEM_Line_Item::type_sub_total && ! $this->children()) {
-            return $this->delete();
-        }
-        return false;
-    }
-
-
-    /**
-     * Creates a code and returns a string. doesn't assign the code to this model object
-     *
-     * @return string
-     * @throws EE_Error
-     */
-    public function generate_code()
-    {
-        // each line item in the cart requires a unique identifier
-        return md5($this->get('OBJ_type') . $this->get('OBJ_ID') . microtime());
-    }
-
-
-    /**
-     * @return bool
-     * @throws EE_Error
-     */
-    public function is_tax()
-    {
-        return $this->type() === EEM_Line_Item::type_tax;
-    }
-
-
-    /**
-     * @return bool
-     * @throws EE_Error
-     */
-    public function is_tax_sub_total()
-    {
-        return $this->type() === EEM_Line_Item::type_tax_sub_total;
-    }
-
-
-    /**
-     * @return bool
-     * @throws EE_Error
-     */
-    public function is_line_item()
-    {
-        return $this->type() === EEM_Line_Item::type_line_item;
-    }
-
-
-    /**
-     * @return bool
-     * @throws EE_Error
-     */
-    public function is_sub_line_item()
-    {
-        return $this->type() === EEM_Line_Item::type_sub_line_item;
-    }
-
-
-    /**
-     * @return bool
-     * @throws EE_Error
-     */
-    public function is_sub_total()
-    {
-        return $this->type() === EEM_Line_Item::type_sub_total;
-    }
-
-
-    /**
-     * Whether or not this line item is a cancellation line item
-     *
-     * @return boolean
-     * @throws EE_Error
-     */
-    public function is_cancellation()
-    {
-        return EEM_Line_Item::type_cancellation === $this->type();
-    }
-
-
-    /**
-     * @return bool
-     * @throws EE_Error
-     */
-    public function is_total()
-    {
-        return $this->type() === EEM_Line_Item::type_total;
-    }
-
-
-    /**
-     * @return bool
-     * @throws EE_Error
-     */
-    public function is_cancelled()
-    {
-        return $this->type() === EEM_Line_Item::type_cancellation;
-    }
-
-
-    /**
-     * @return string like '2, 004.00', formatted according to the localized currency
-     * @throws EE_Error
-     */
-    public function unit_price_no_code()
-    {
-        return $this->get_pretty('LIN_unit_price', 'no_currency_code');
-    }
-
-
-    /**
-     * @return string like '2, 004.00', formatted according to the localized currency
-     * @throws EE_Error
-     */
-    public function total_no_code()
-    {
-        return $this->get_pretty('LIN_total', 'no_currency_code');
-    }
-
-
-    /**
-     * Gets the final total on this item, taking taxes into account.
-     * Has the side-effect of setting the sub-total as it was just calculated.
-     * If this is used on a grand-total line item, also updates the transaction's
-     * TXN_total (provided this line item is allowed to persist, otherwise we don't
-     * want to change a persistable transaction with info from a non-persistent line item)
-     *
-     * @return float
-     * @throws EE_Error
-     * @throws InvalidArgumentException
-     * @throws InvalidInterfaceException
-     * @throws InvalidDataTypeException
-     */
-    public function recalculate_total_including_taxes()
-    {
-        $pre_tax_total = $this->recalculate_pre_tax_total();
-        $tax_total = $this->recalculate_taxes_and_tax_total();
-        $total = $pre_tax_total + $tax_total;
-        // no negative totals plz
-        $total = max($total, 0);
-        $this->set_total($total);
-        // only update the related transaction's total
-        // if we intend to save this line item and its a grand total
-        if ($this->allow_persist() && $this->type() === EEM_Line_Item::type_total
-            && $this->transaction()
-               instanceof
-               EE_Transaction
-        ) {
-            $this->transaction()->set_total($total);
-            if ($this->transaction()->ID()) {
-                $this->transaction()->save();
-            }
-        }
-        $this->maybe_save();
-        return $total;
-    }
-
-
-    /**
-     * Recursively goes through all the children and recalculates sub-totals EXCEPT for
-     * tax-sub-totals (they're a an odd beast). Updates the 'total' on each line item according to either its
-     * unit price * quantity or the total of all its children EXCEPT when we're only calculating the taxable total and
-     * when this is called on the grand total
-     *
-     * @return float
-     * @throws InvalidArgumentException
-     * @throws InvalidInterfaceException
-     * @throws InvalidDataTypeException
-     * @throws EE_Error
-     */
-    public function recalculate_pre_tax_total()
-    {
-        $total = 0;
-        $my_children = $this->children();
-        $has_children = ! empty($my_children);
-        if ($has_children && $this->is_line_item()) {
-            $total = $this->_recalculate_pretax_total_for_line_item($total, $my_children);
-        } elseif (! $has_children && ($this->is_sub_line_item() || $this->is_line_item())) {
-            $total = $this->unit_price() * $this->quantity();
-        } elseif ($this->is_sub_total() || $this->is_total()) {
-            $total = $this->_recalculate_pretax_total_for_subtotal($total, $my_children);
-        } elseif ($this->is_tax_sub_total() || $this->is_tax() || $this->is_cancelled()) {
-            // completely ignore tax totals, tax sub-totals, and cancelled line items, when calculating the pre-tax-total
-            return 0;
-        }
-        // ensure all non-line items and non-sub-line-items have a quantity of 1 (except for Events)
-        if (! $this->is_line_item() && ! $this->is_sub_line_item() && ! $this->is_cancellation()
-        ) {
-            if ($this->OBJ_type() !== 'Event') {
-                $this->set_quantity(1);
-            }
-            if (! $this->is_percent()) {
-                $this->set_unit_price($total);
-            }
-        }
-        // we don't want to bother saving grand totals, because that needs to factor in taxes anyways
-        // so it ought to be
-        if (! $this->is_total()) {
-            $this->set_total($total);
-            // if not a percent line item, make sure we keep the unit price in sync
-            if ($has_children
-                && $this->is_line_item()
-                && ! $this->is_percent()
-            ) {
-                if ($this->quantity() === 0) {
-                    $new_unit_price = 0;
-                } else {
-                    $new_unit_price = $this->total() / $this->quantity();
-                }
-                $this->set_unit_price($new_unit_price);
-            }
-            $this->maybe_save();
-        }
-        return $total;
-    }
-
-
-    /**
-     * Calculates the pretax total when this line item is a subtotal or total line item.
-     * Basically does a sum-then-round approach (ie, any percent line item that are children
-     * will calculate their total based on the un-rounded total we're working with so far, and
-     * THEN round the result; instead of rounding as we go like with sub-line-items)
-     *
-     * @param float          $calculated_total_so_far
-     * @param EE_Line_Item[] $my_children
-     * @return float
-     * @throws InvalidArgumentException
-     * @throws InvalidInterfaceException
-     * @throws InvalidDataTypeException
-     * @throws EE_Error
-     */
-    protected function _recalculate_pretax_total_for_subtotal($calculated_total_so_far, $my_children = null)
-    {
-        if ($my_children === null) {
-            $my_children = $this->children();
-        }
-        $subtotal_quantity = 0;
-        // get the total of all its children
-        foreach ($my_children as $child_line_item) {
-            if ($child_line_item instanceof EE_Line_Item && ! $child_line_item->is_cancellation()) {
-                // percentage line items are based on total so far
-                if ($child_line_item->is_percent()) {
-                    // round as we go so that the line items add up ok
-                    $percent_total = round(
-                        $calculated_total_so_far * $child_line_item->percent() / 100,
-                        EE_Registry::instance()->CFG->currency->dec_plc
-                    );
-                    $child_line_item->set_total($percent_total);
-                    // so far all percent line items should have a quantity of 1
-                    // (ie, no double percent discounts. Although that might be requested someday)
-                    $child_line_item->set_quantity(1);
-                    $child_line_item->maybe_save();
-                    $calculated_total_so_far += $percent_total;
-                } else {
-                    // verify flat sub-line-item quantities match their parent
-                    if ($child_line_item->is_sub_line_item()) {
-                        $child_line_item->set_quantity($this->quantity());
-                    }
-                    $calculated_total_so_far += $child_line_item->recalculate_pre_tax_total();
-                    $subtotal_quantity += $child_line_item->quantity();
-                }
-            }
-        }
-        if ($this->is_sub_total()) {
-            // no negative totals plz
-            $calculated_total_so_far = max($calculated_total_so_far, 0);
-            $subtotal_quantity = $subtotal_quantity > 0 ? 1 : 0;
-            $this->set_quantity($subtotal_quantity);
-            $this->maybe_save();
-        }
-        return $calculated_total_so_far;
-    }
-
-
-    /**
-     * Calculates the pretax total for a normal line item, in a round-then-sum approach
-     * (where each sub-line-item is applied to the base price for the line item
-     * and the result is immediately rounded, rather than summing all the sub-line-items
-     * then rounding, like we do when recalculating pretax totals on totals and subtotals).
-     *
-     * @param float          $calculated_total_so_far
-     * @param EE_Line_Item[] $my_children
-     * @return float
-     * @throws InvalidArgumentException
-     * @throws InvalidInterfaceException
-     * @throws InvalidDataTypeException
-     * @throws EE_Error
-     */
-    protected function _recalculate_pretax_total_for_line_item($calculated_total_so_far, $my_children = null)
-    {
-        if ($my_children === null) {
-            $my_children = $this->children();
-        }
-        // we need to keep track of the running total for a single item,
-        // because we need to round as we go
-        $unit_price_for_total = 0;
-        $quantity_for_total = 1;
-        // get the total of all its children
-        foreach ($my_children as $child_line_item) {
-            if ($child_line_item instanceof EE_Line_Item && ! $child_line_item->is_cancellation()) {
-                if ($child_line_item->is_percent()) {
-                    // it should be the unit-price-so-far multiplied by teh percent multiplied by the quantity
-                    // not total multiplied by percent, because that ignores rounding along-the-way
-                    $percent_unit_price = round(
-                        $unit_price_for_total * $child_line_item->percent() / 100,
-                        EE_Registry::instance()->CFG->currency->dec_plc
-                    );
-                    $percent_total = $percent_unit_price * $quantity_for_total;
-                    $child_line_item->set_total($percent_total);
-                    // so far all percent line items should have a quantity of 1
-                    // (ie, no double percent discounts. Although that might be requested someday)
-                    $child_line_item->set_quantity(1);
-                    $child_line_item->maybe_save();
-                    $calculated_total_so_far += $percent_total;
-                    $unit_price_for_total += $percent_unit_price;
-                } else {
-                    // verify flat sub-line-item quantities match their parent
-                    if ($child_line_item->is_sub_line_item()) {
-                        $child_line_item->set_quantity($this->quantity());
-                    }
-                    $quantity_for_total = $child_line_item->quantity();
-                    $calculated_total_so_far += $child_line_item->recalculate_pre_tax_total();
-                    $unit_price_for_total += $child_line_item->unit_price();
-                }
-            }
-        }
-        return $calculated_total_so_far;
-    }
-
-
-    /**
-     * Recalculates the total on each individual tax (based on a recalculation of the pre-tax total), sets
-     * the totals on each tax calculated, and returns the final tax total. Re-saves tax line items
-     * and tax sub-total if already in the DB
-     *
-     * @return float
-     * @throws EE_Error
-     */
-    public function recalculate_taxes_and_tax_total()
-    {
-        // get all taxes
-        $taxes = $this->tax_descendants();
-        // calculate the pretax total
-        $taxable_total = $this->taxable_total();
-        $tax_total = 0;
-        foreach ($taxes as $tax) {
-            $total_on_this_tax = $taxable_total * $tax->percent() / 100;
-            // remember the total on this line item
-            $tax->set_total($total_on_this_tax);
-            $tax->maybe_save();
-            $tax_total += $tax->total();
-        }
-        $this->_recalculate_tax_sub_total();
-        return $tax_total;
-    }
-
-
-    /**
-     * Simply forces all the tax-sub-totals to recalculate. Assumes the taxes have been calculated
-     *
-     * @return void
-     * @throws EE_Error
-     */
-    private function _recalculate_tax_sub_total()
-    {
-        if ($this->is_tax_sub_total()) {
-            $total = 0;
-            $total_percent = 0;
-            // simply loop through all its children (which should be taxes) and sum their total
-            foreach ($this->children() as $child_tax) {
-                if ($child_tax instanceof EE_Line_Item) {
-                    $total += $child_tax->total();
-                    $total_percent += $child_tax->percent();
-                }
-            }
-            $this->set_total($total);
-            $this->set_percent($total_percent);
-            $this->maybe_save();
-        } elseif ($this->is_total()) {
-            foreach ($this->children() as $maybe_tax_subtotal) {
-                if ($maybe_tax_subtotal instanceof EE_Line_Item) {
-                    $maybe_tax_subtotal->_recalculate_tax_sub_total();
-                }
-            }
-        }
-    }
-
-
-    /**
-     * Gets the total tax on this line item. Assumes taxes have already been calculated using
-     * recalculate_taxes_and_total
-     *
-     * @return float
-     * @throws EE_Error
-     */
-    public function get_total_tax()
-    {
-        $this->_recalculate_tax_sub_total();
-        $total = 0;
-        foreach ($this->tax_descendants() as $tax_line_item) {
-            if ($tax_line_item instanceof EE_Line_Item) {
-                $total += $tax_line_item->total();
-            }
-        }
-        return $total;
-    }
-
-
-    /**
-     * Gets the total for all the items purchased only
-     *
-     * @return float
-     * @throws EE_Error
-     */
-    public function get_items_total()
-    {
-        // by default, let's make sure we're consistent with the existing line item
-        if ($this->is_total()) {
-            $pretax_subtotal_li = EEH_Line_Item::get_pre_tax_subtotal($this);
-            if ($pretax_subtotal_li instanceof EE_Line_Item) {
-                return $pretax_subtotal_li->total();
-            }
-        }
-        $total = 0;
-        foreach ($this->get_items() as $item) {
-            if ($item instanceof EE_Line_Item) {
-                $total += $item->total();
-            }
-        }
-        return $total;
-    }
-
-
-    /**
-     * Gets all the descendants (ie, children or children of children etc) that
-     * are of the type 'tax'
-     *
-     * @return EE_Line_Item[]
-     */
-    public function tax_descendants()
-    {
-        return EEH_Line_Item::get_tax_descendants($this);
-    }
-
-
-    /**
-     * Gets all the real items purchased which are children of this item
-     *
-     * @return EE_Line_Item[]
-     */
-    public function get_items()
-    {
-        return EEH_Line_Item::get_line_item_descendants($this);
-    }
-
-
-    /**
-     * Returns the amount taxable among this line item's children (or if it has no children,
-     * how much of it is taxable). Does not recalculate totals or subtotals.
-     * If the taxable total is negative, (eg, if none of the tickets were taxable,
-     * but there is a "Taxable" discount), returns 0.
-     *
-     * @return float
-     * @throws EE_Error
-     */
-    public function taxable_total()
-    {
-        $total = 0;
-        if ($this->children()) {
-            foreach ($this->children() as $child_line_item) {
-                if ($child_line_item->type() === EEM_Line_Item::type_line_item && $child_line_item->is_taxable()) {
-                    // if it's a percent item, only take into account the percent
-                    // that's taxable too (the taxable total so far)
-                    if ($child_line_item->is_percent()) {
-                        $total += ($total * $child_line_item->percent() / 100);
-                    } else {
-                        $total += $child_line_item->total();
-                    }
-                } elseif ($child_line_item->type() === EEM_Line_Item::type_sub_total) {
-                    $total += $child_line_item->taxable_total();
-                }
-            }
-        }
-        return max($total, 0);
-    }
-
-
-    /**
-     * Gets the transaction for this line item
-     *
-     * @return EE_Base_Class|EE_Transaction
-     * @throws EE_Error
-     */
-    public function transaction()
-    {
-        return $this->get_first_related('Transaction');
-    }
-
-
-    /**
-     * Saves this line item to the DB, and recursively saves its descendants.
-     * Because there currently is no proper parent-child relation on the model,
-     * save_this_and_cached() will NOT save the descendants.
-     * Also sets the transaction on this line item and all its descendants before saving
-     *
-     * @param int $txn_id if none is provided, assumes $this->TXN_ID()
-     * @return int count of items saved
-     * @throws EE_Error
-     */
-    public function save_this_and_descendants_to_txn($txn_id = null)
-    {
-        $count = 0;
-        if (! $txn_id) {
-            $txn_id = $this->TXN_ID();
-        }
-        $this->set_TXN_ID($txn_id);
-        $children = $this->children();
-        $count += $this->save()
-            ? 1
-            : 0;
-        foreach ($children as $child_line_item) {
-            if ($child_line_item instanceof EE_Line_Item) {
-                $child_line_item->set_parent_ID($this->ID());
-                $count += $child_line_item->save_this_and_descendants_to_txn($txn_id);
-            }
-        }
-        return $count;
-    }
-
-
-    /**
-     * Saves this line item to the DB, and recursively saves its descendants.
-     *
-     * @return int count of items saved
-     * @throws EE_Error
-     */
-    public function save_this_and_descendants()
-    {
-        $count = 0;
-        $children = $this->children();
-        $count += $this->save()
-            ? 1
-            : 0;
-        foreach ($children as $child_line_item) {
-            if ($child_line_item instanceof EE_Line_Item) {
-                $child_line_item->set_parent_ID($this->ID());
-                $count += $child_line_item->save_this_and_descendants();
-            }
-        }
-        return $count;
-    }
-
-
-    /**
-     * returns the cancellation line item if this item was cancelled
-     *
-     * @return EE_Line_Item[]
-     * @throws InvalidArgumentException
-     * @throws InvalidInterfaceException
-     * @throws InvalidDataTypeException
-     * @throws ReflectionException
-     * @throws EE_Error
-     */
-    public function get_cancellations()
-    {
-        EE_Registry::instance()->load_helper('Line_Item');
-        return EEH_Line_Item::get_descendants_of_type($this, EEM_Line_Item::type_cancellation);
-    }
-
-
-    /**
-     * If this item has an ID, then this saves it again to update the db
-     *
-     * @return int count of items saved
-     * @throws EE_Error
-     */
-    public function maybe_save()
-    {
-        if ($this->ID()) {
-            return $this->save();
-        }
-        return false;
-    }
-
-
-    /**
-     * clears the cached children and parent from the line item
-     *
-     * @return void
-     */
-    public function clear_related_line_item_cache()
-    {
-        $this->_children = array();
-        $this->_parent = null;
-    }
-
-
-    /**
-     * @param bool $raw
-     * @return int
-     * @throws EE_Error
-     */
-    public function timestamp($raw = false)
-    {
-        return $raw
-            ? $this->get_raw('LIN_timestamp')
-            : $this->get('LIN_timestamp');
-    }
-
-
-
-
-    /************************* DEPRECATED *************************/
-    /**
-     * @deprecated 4.6.0
-     * @param string $type one of the constants on EEM_Line_Item
-     * @return EE_Line_Item[]
-     */
-    protected function _get_descendants_of_type($type)
-    {
-        EE_Error::doing_it_wrong(
-            'EE_Line_Item::_get_descendants_of_type()',
-            __('Method replaced with EEH_Line_Item::get_descendants_of_type()', 'event_espresso'),
-            '4.6.0'
-        );
-        return EEH_Line_Item::get_descendants_of_type($this, $type);
-    }
-
-
-    /**
-     * @deprecated 4.6.0
-     * @param string $type like one of the EEM_Line_Item::type_*
-     * @return EE_Line_Item
-     */
-    public function get_nearest_descendant_of_type($type)
-    {
-        EE_Error::doing_it_wrong(
-            'EE_Line_Item::get_nearest_descendant_of_type()',
-            __('Method replaced with EEH_Line_Item::get_nearest_descendant_of_type()', 'event_espresso'),
-            '4.6.0'
-        );
-        return EEH_Line_Item::get_nearest_descendant_of_type($this, $type);
-    }
+	/**
+	 * for children line items (currently not a normal relation)
+	 *
+	 * @type EE_Line_Item[]
+	 */
+	protected $_children = array();
+
+	/**
+	 * for the parent line item
+	 *
+	 * @var EE_Line_Item
+	 */
+	protected $_parent;
+
+
+	/**
+	 *
+	 * @param array  $props_n_values          incoming values
+	 * @param string $timezone                incoming timezone (if not set the timezone set for the website will be
+	 *                                        used.)
+	 * @param array  $date_formats            incoming date_formats in an array where the first value is the
+	 *                                        date_format and the second value is the time format
+	 * @return EE_Line_Item
+	 * @throws EE_Error
+	 */
+	public static function new_instance($props_n_values = array(), $timezone = null, $date_formats = array())
+	{
+		$has_object = parent::_check_for_object($props_n_values, __CLASS__, $timezone, $date_formats);
+		return $has_object
+			? $has_object
+			: new self($props_n_values, false, $timezone);
+	}
+
+
+	/**
+	 * @param array  $props_n_values  incoming values from the database
+	 * @param string $timezone        incoming timezone as set by the model.  If not set the timezone for
+	 *                                the website will be used.
+	 * @return EE_Line_Item
+	 * @throws EE_Error
+	 */
+	public static function new_instance_from_db($props_n_values = array(), $timezone = null)
+	{
+		return new self($props_n_values, true, $timezone);
+	}
+
+
+	/**
+	 * Adds some defaults if they're not specified
+	 *
+	 * @param array  $fieldValues
+	 * @param bool   $bydb
+	 * @param string $timezone
+	 * @throws EE_Error
+	 */
+	protected function __construct($fieldValues = array(), $bydb = false, $timezone = '')
+	{
+		parent::__construct($fieldValues, $bydb, $timezone);
+		if (! $this->get('LIN_code')) {
+			$this->set_code($this->generate_code());
+		}
+	}
+
+
+	/**
+	 * Gets ID
+	 *
+	 * @return int
+	 * @throws EE_Error
+	 */
+	public function ID()
+	{
+		return $this->get('LIN_ID');
+	}
+
+
+	/**
+	 * Gets TXN_ID
+	 *
+	 * @return int
+	 * @throws EE_Error
+	 */
+	public function TXN_ID()
+	{
+		return $this->get('TXN_ID');
+	}
+
+
+	/**
+	 * Sets TXN_ID
+	 *
+	 * @param int $TXN_ID
+	 * @throws EE_Error
+	 */
+	public function set_TXN_ID($TXN_ID)
+	{
+		$this->set('TXN_ID', $TXN_ID);
+	}
+
+
+	/**
+	 * Gets name
+	 *
+	 * @return string
+	 * @throws EE_Error
+	 */
+	public function name()
+	{
+		$name = $this->get('LIN_name');
+		if (! $name) {
+			$name = ucwords(str_replace('-', ' ', $this->type()));
+		}
+		return $name;
+	}
+
+
+	/**
+	 * Sets name
+	 *
+	 * @param string $name
+	 * @throws EE_Error
+	 */
+	public function set_name($name)
+	{
+		$this->set('LIN_name', $name);
+	}
+
+
+	/**
+	 * Gets desc
+	 *
+	 * @return string
+	 * @throws EE_Error
+	 */
+	public function desc()
+	{
+		return $this->get('LIN_desc');
+	}
+
+
+	/**
+	 * Sets desc
+	 *
+	 * @param string $desc
+	 * @throws EE_Error
+	 */
+	public function set_desc($desc)
+	{
+		$this->set('LIN_desc', $desc);
+	}
+
+
+	/**
+	 * Gets quantity
+	 *
+	 * @return int
+	 * @throws EE_Error
+	 */
+	public function quantity()
+	{
+		return $this->get('LIN_quantity');
+	}
+
+
+	/**
+	 * Sets quantity
+	 *
+	 * @param int $quantity
+	 * @throws EE_Error
+	 */
+	public function set_quantity($quantity)
+	{
+		$this->set('LIN_quantity', max($quantity, 0));
+	}
+
+
+	/**
+	 * Gets item_id
+	 *
+	 * @return string
+	 * @throws EE_Error
+	 */
+	public function OBJ_ID()
+	{
+		return $this->get('OBJ_ID');
+	}
+
+
+	/**
+	 * Sets item_id
+	 *
+	 * @param string $item_id
+	 * @throws EE_Error
+	 */
+	public function set_OBJ_ID($item_id)
+	{
+		$this->set('OBJ_ID', $item_id);
+	}
+
+
+	/**
+	 * Gets item_type
+	 *
+	 * @return string
+	 * @throws EE_Error
+	 */
+	public function OBJ_type()
+	{
+		return $this->get('OBJ_type');
+	}
+
+
+	/**
+	 * Gets item_type
+	 *
+	 * @return string
+	 * @throws EE_Error
+	 */
+	public function OBJ_type_i18n()
+	{
+		$obj_type = $this->OBJ_type();
+		switch ($obj_type) {
+			case 'Event':
+				$obj_type = __('Event', 'event_espresso');
+				break;
+			case 'Price':
+				$obj_type = __('Price', 'event_espresso');
+				break;
+			case 'Promotion':
+				$obj_type = __('Promotion', 'event_espresso');
+				break;
+			case 'Ticket':
+				$obj_type = __('Ticket', 'event_espresso');
+				break;
+			case 'Transaction':
+				$obj_type = __('Transaction', 'event_espresso');
+				break;
+		}
+		return apply_filters('FHEE__EE_Line_Item__OBJ_type_i18n', $obj_type, $this);
+	}
+
+
+	/**
+	 * Sets item_type
+	 *
+	 * @param string $OBJ_type
+	 * @throws EE_Error
+	 */
+	public function set_OBJ_type($OBJ_type)
+	{
+		$this->set('OBJ_type', $OBJ_type);
+	}
+
+
+	/**
+	 * Gets unit_price
+	 *
+	 * @return float
+	 * @throws EE_Error
+	 */
+	public function unit_price()
+	{
+		return $this->get('LIN_unit_price');
+	}
+
+
+	/**
+	 * Sets unit_price
+	 *
+	 * @param float $unit_price
+	 * @throws EE_Error
+	 */
+	public function set_unit_price($unit_price)
+	{
+		$this->set('LIN_unit_price', $unit_price);
+	}
+
+
+	/**
+	 * Checks if this item is a percentage modifier or not
+	 *
+	 * @return boolean
+	 * @throws EE_Error
+	 */
+	public function is_percent()
+	{
+		if ($this->is_tax_sub_total()) {
+			// tax subtotals HAVE a percent on them, that percentage only applies
+			// to taxable items, so its' an exception. Treat it like a flat line item
+			return false;
+		}
+		$unit_price = abs($this->get('LIN_unit_price'));
+		$percent = abs($this->get('LIN_percent'));
+		if ($unit_price < .001 && $percent) {
+			return true;
+		}
+		if ($unit_price >= .001 && ! $percent) {
+			return false;
+		}
+		if ($unit_price >= .001 && $percent) {
+			throw new EE_Error(
+				sprintf(
+					esc_html__('A Line Item can not have a unit price of (%s) AND a percent (%s)!', 'event_espresso'),
+					$unit_price,
+					$percent
+				)
+			);
+		}
+		// if they're both 0, assume its not a percent item
+		return false;
+	}
+
+
+	/**
+	 * Gets percent (between 100-.001)
+	 *
+	 * @return float
+	 * @throws EE_Error
+	 */
+	public function percent()
+	{
+		return $this->get('LIN_percent');
+	}
+
+
+	/**
+	 * Sets percent (between 100-0.01)
+	 *
+	 * @param float $percent
+	 * @throws EE_Error
+	 */
+	public function set_percent($percent)
+	{
+		$this->set('LIN_percent', $percent);
+	}
+
+
+	/**
+	 * Gets total
+	 *
+	 * @return float
+	 * @throws EE_Error
+	 */
+	public function total()
+	{
+		return $this->get('LIN_total');
+	}
+
+
+	/**
+	 * Sets total
+	 *
+	 * @param float $total
+	 * @throws EE_Error
+	 */
+	public function set_total($total)
+	{
+		$this->set('LIN_total', $total);
+	}
+
+
+	/**
+	 * Gets order
+	 *
+	 * @return int
+	 * @throws EE_Error
+	 */
+	public function order()
+	{
+		return $this->get('LIN_order');
+	}
+
+
+	/**
+	 * Sets order
+	 *
+	 * @param int $order
+	 * @throws EE_Error
+	 */
+	public function set_order($order)
+	{
+		$this->set('LIN_order', $order);
+	}
+
+
+	/**
+	 * Gets parent
+	 *
+	 * @return int
+	 * @throws EE_Error
+	 */
+	public function parent_ID()
+	{
+		return $this->get('LIN_parent');
+	}
+
+
+	/**
+	 * Sets parent
+	 *
+	 * @param int $parent
+	 * @throws EE_Error
+	 */
+	public function set_parent_ID($parent)
+	{
+		$this->set('LIN_parent', $parent);
+	}
+
+
+	/**
+	 * Gets type
+	 *
+	 * @return string
+	 * @throws EE_Error
+	 */
+	public function type()
+	{
+		return $this->get('LIN_type');
+	}
+
+
+	/**
+	 * Sets type
+	 *
+	 * @param string $type
+	 * @throws EE_Error
+	 */
+	public function set_type($type)
+	{
+		$this->set('LIN_type', $type);
+	}
+
+
+	/**
+	 * Gets the line item of which this item is a composite. Eg, if this is a subtotal, the parent might be a total\
+	 * If this line item is saved to the DB, fetches the parent from the DB. However, if this line item isn't in the DB
+	 * it uses its cached reference to its parent line item (which would have been set by `EE_Line_Item::set_parent()`
+	 * or indirectly by `EE_Line_item::add_child_line_item()`)
+	 *
+	 * @return EE_Base_Class|EE_Line_Item
+	 * @throws EE_Error
+	 */
+	public function parent()
+	{
+		return $this->ID()
+			? $this->get_model()->get_one_by_ID($this->parent_ID())
+			: $this->_parent;
+	}
+
+
+	/**
+	 * Gets ALL the children of this line item (ie, all the parts that contribute towards this total).
+	 *
+	 * @return EE_Base_Class[]|EE_Line_Item[]
+	 * @throws EE_Error
+	 */
+	public function children()
+	{
+		if ($this->ID()) {
+			return $this->get_model()->get_all(
+				array(
+					array('LIN_parent' => $this->ID()),
+					'order_by' => array('LIN_order' => 'ASC'),
+				)
+			);
+		}
+		if (! is_array($this->_children)) {
+			$this->_children = array();
+		}
+		return $this->_children;
+	}
+
+
+	/**
+	 * Gets code
+	 *
+	 * @return string
+	 * @throws EE_Error
+	 */
+	public function code()
+	{
+		return $this->get('LIN_code');
+	}
+
+
+	/**
+	 * Sets code
+	 *
+	 * @param string $code
+	 * @throws EE_Error
+	 */
+	public function set_code($code)
+	{
+		$this->set('LIN_code', $code);
+	}
+
+
+	/**
+	 * Gets is_taxable
+	 *
+	 * @return boolean
+	 * @throws EE_Error
+	 */
+	public function is_taxable()
+	{
+		return $this->get('LIN_is_taxable');
+	}
+
+
+	/**
+	 * Sets is_taxable
+	 *
+	 * @param boolean $is_taxable
+	 * @throws EE_Error
+	 */
+	public function set_is_taxable($is_taxable)
+	{
+		$this->set('LIN_is_taxable', $is_taxable);
+	}
+
+
+	/**
+	 * Gets the object that this model-joins-to.
+	 * returns one of the model objects that the field OBJ_ID can point to... see the 'OBJ_ID' field on
+	 * EEM_Promotion_Object
+	 *
+	 *        Eg, if this line item join model object is for a ticket, this will return the EE_Ticket object
+	 *
+	 * @return EE_Base_Class | NULL
+	 * @throws EE_Error
+	 */
+	public function get_object()
+	{
+		$model_name_of_related_obj = $this->OBJ_type();
+		return $this->get_model()->has_relation($model_name_of_related_obj)
+			? $this->get_first_related($model_name_of_related_obj)
+			: null;
+	}
+
+
+	/**
+	 * Like EE_Line_Item::get_object(), but can only ever actually return an EE_Ticket.
+	 * (IE, if this line item is for a price or something else, will return NULL)
+	 *
+	 * @param array $query_params
+	 * @return EE_Base_Class|EE_Ticket
+	 * @throws EE_Error
+	 */
+	public function ticket($query_params = array())
+	{
+		// we're going to assume that when this method is called we always want to receive the attached ticket EVEN if that ticket is archived.  This can be overridden via the incoming $query_params argument
+		$remove_defaults = array('default_where_conditions' => 'none');
+		$query_params = array_merge($remove_defaults, $query_params);
+		return $this->get_first_related('Ticket', $query_params);
+	}
+
+
+	/**
+	 * Gets the EE_Datetime that's related to the ticket, IF this is for a ticket
+	 *
+	 * @return EE_Datetime | NULL
+	 * @throws EE_Error
+	 */
+	public function get_ticket_datetime()
+	{
+		if ($this->OBJ_type() === 'Ticket') {
+			$ticket = $this->ticket();
+			if ($ticket instanceof EE_Ticket) {
+				$datetime = $ticket->first_datetime();
+				if ($datetime instanceof EE_Datetime) {
+					return $datetime;
+				}
+			}
+		}
+		return null;
+	}
+
+
+	/**
+	 * Gets the event's name that's related to the ticket, if this is for
+	 * a ticket
+	 *
+	 * @return string
+	 * @throws EE_Error
+	 */
+	public function ticket_event_name()
+	{
+		$event_name = esc_html__('Unknown', 'event_espresso');
+		$event = $this->ticket_event();
+		if ($event instanceof EE_Event) {
+			$event_name = $event->name();
+		}
+		return $event_name;
+	}
+
+
+	/**
+	 * Gets the event that's related to the ticket, if this line item represents a ticket.
+	 *
+	 * @return EE_Event|null
+	 * @throws EE_Error
+	 */
+	public function ticket_event()
+	{
+		$event = null;
+		$ticket = $this->ticket();
+		if ($ticket instanceof EE_Ticket) {
+			$datetime = $ticket->first_datetime();
+			if ($datetime instanceof EE_Datetime) {
+				$event = $datetime->event();
+			}
+		}
+		return $event;
+	}
+
+
+	/**
+	 * Gets the first datetime for this lien item, assuming it's for a ticket
+	 *
+	 * @param string $date_format
+	 * @param string $time_format
+	 * @return string
+	 * @throws EE_Error
+	 */
+	public function ticket_datetime_start($date_format = '', $time_format = '')
+	{
+		$first_datetime_string = esc_html__('Unknown', 'event_espresso');
+		$datetime = $this->get_ticket_datetime();
+		if ($datetime) {
+			$first_datetime_string = $datetime->start_date_and_time($date_format, $time_format);
+		}
+		return $first_datetime_string;
+	}
+
+
+	/**
+	 * Adds the line item as a child to this line item. If there is another child line
+	 * item with the same LIN_code, it is overwritten by this new one
+	 *
+	 * @param EEI_Line_Item $line_item
+	 * @param bool          $set_order
+	 * @return bool success
+	 * @throws EE_Error
+	 */
+	public function add_child_line_item(EEI_Line_Item $line_item, $set_order = true)
+	{
+		// should we calculate the LIN_order for this line item ?
+		if ($set_order || $line_item->order() === null) {
+			$line_item->set_order(count($this->children()));
+		}
+		if ($this->ID()) {
+			// check for any duplicate line items (with the same code), if so, this replaces it
+			$line_item_with_same_code = $this->get_child_line_item($line_item->code());
+			if ($line_item_with_same_code instanceof EE_Line_Item && $line_item_with_same_code !== $line_item) {
+				$this->delete_child_line_item($line_item_with_same_code->code());
+			}
+			$line_item->set_parent_ID($this->ID());
+			if ($this->TXN_ID()) {
+				$line_item->set_TXN_ID($this->TXN_ID());
+			}
+			return $line_item->save();
+		}
+		$this->_children[ $line_item->code() ] = $line_item;
+		if ($line_item->parent() !== $this) {
+			$line_item->set_parent($this);
+		}
+		return true;
+	}
+
+
+	/**
+	 * Similar to EE_Base_Class::_add_relation_to, except this isn't a normal relation.
+	 * If this line item is saved to the DB, this is just a wrapper for set_parent_ID() and save()
+	 * However, if this line item is NOT saved to the DB, this just caches the parent on
+	 * the EE_Line_Item::_parent property.
+	 *
+	 * @param EE_Line_Item $line_item
+	 * @throws EE_Error
+	 */
+	public function set_parent($line_item)
+	{
+		if ($this->ID()) {
+			if (! $line_item->ID()) {
+				$line_item->save();
+			}
+			$this->set_parent_ID($line_item->ID());
+			$this->save();
+		} else {
+			$this->_parent = $line_item;
+			$this->set_parent_ID($line_item->ID());
+		}
+	}
+
+
+	/**
+	 * Gets the child line item as specified by its code. Because this returns an object (by reference)
+	 * you can modify this child line item and the parent (this object) can know about them
+	 * because it also has a reference to that line item
+	 *
+	 * @param string $code
+	 * @return EE_Base_Class|EE_Line_Item|EE_Soft_Delete_Base_Class|NULL
+	 * @throws EE_Error
+	 */
+	public function get_child_line_item($code)
+	{
+		if ($this->ID()) {
+			return $this->get_model()->get_one(
+				array(array('LIN_parent' => $this->ID(), 'LIN_code' => $code))
+			);
+		}
+		return isset($this->_children[ $code ])
+			? $this->_children[ $code ]
+			: null;
+	}
+
+
+	/**
+	 * Returns how many items are deleted (or, if this item has not been saved ot the DB yet, just how many it HAD
+	 * cached on it)
+	 *
+	 * @return int
+	 * @throws EE_Error
+	 */
+	public function delete_children_line_items()
+	{
+		if ($this->ID()) {
+			return $this->get_model()->delete(array(array('LIN_parent' => $this->ID())));
+		}
+		$count = count($this->_children);
+		$this->_children = array();
+		return $count;
+	}
+
+
+	/**
+	 * If this line item has been saved to the DB, deletes its child with LIN_code == $code. If this line
+	 * HAS NOT been saved to the DB, removes the child line item with index $code.
+	 * Also searches through the child's children for a matching line item. However, once a line item has been found
+	 * and deleted, stops searching (so if there are line items with duplicate codes, only the first one found will be
+	 * deleted)
+	 *
+	 * @param string $code
+	 * @param bool   $stop_search_once_found
+	 * @return int count of items deleted (or simply removed from the line item's cache, if not has not been saved to
+	 *             the DB yet)
+	 * @throws EE_Error
+	 */
+	public function delete_child_line_item($code, $stop_search_once_found = true)
+	{
+		if ($this->ID()) {
+			$items_deleted = 0;
+			if ($this->code() === $code) {
+				$items_deleted += EEH_Line_Item::delete_all_child_items($this);
+				$items_deleted += (int) $this->delete();
+				if ($stop_search_once_found) {
+					return $items_deleted;
+				}
+			}
+			foreach ($this->children() as $child_line_item) {
+				$items_deleted += $child_line_item->delete_child_line_item($code, $stop_search_once_found);
+			}
+			return $items_deleted;
+		}
+		if (isset($this->_children[ $code ])) {
+			unset($this->_children[ $code ]);
+			return 1;
+		}
+		return 0;
+	}
+
+
+	/**
+	 * If this line item is in the database, is of the type subtotal, and
+	 * has no children, why do we have it? It should be deleted so this function
+	 * does that
+	 *
+	 * @return boolean
+	 * @throws EE_Error
+	 */
+	public function delete_if_childless_subtotal()
+	{
+		if ($this->ID() && $this->type() === EEM_Line_Item::type_sub_total && ! $this->children()) {
+			return $this->delete();
+		}
+		return false;
+	}
+
+
+	/**
+	 * Creates a code and returns a string. doesn't assign the code to this model object
+	 *
+	 * @return string
+	 * @throws EE_Error
+	 */
+	public function generate_code()
+	{
+		// each line item in the cart requires a unique identifier
+		return md5($this->get('OBJ_type') . $this->get('OBJ_ID') . microtime());
+	}
+
+
+	/**
+	 * @return bool
+	 * @throws EE_Error
+	 */
+	public function is_tax()
+	{
+		return $this->type() === EEM_Line_Item::type_tax;
+	}
+
+
+	/**
+	 * @return bool
+	 * @throws EE_Error
+	 */
+	public function is_tax_sub_total()
+	{
+		return $this->type() === EEM_Line_Item::type_tax_sub_total;
+	}
+
+
+	/**
+	 * @return bool
+	 * @throws EE_Error
+	 */
+	public function is_line_item()
+	{
+		return $this->type() === EEM_Line_Item::type_line_item;
+	}
+
+
+	/**
+	 * @return bool
+	 * @throws EE_Error
+	 */
+	public function is_sub_line_item()
+	{
+		return $this->type() === EEM_Line_Item::type_sub_line_item;
+	}
+
+
+	/**
+	 * @return bool
+	 * @throws EE_Error
+	 */
+	public function is_sub_total()
+	{
+		return $this->type() === EEM_Line_Item::type_sub_total;
+	}
+
+
+	/**
+	 * Whether or not this line item is a cancellation line item
+	 *
+	 * @return boolean
+	 * @throws EE_Error
+	 */
+	public function is_cancellation()
+	{
+		return EEM_Line_Item::type_cancellation === $this->type();
+	}
+
+
+	/**
+	 * @return bool
+	 * @throws EE_Error
+	 */
+	public function is_total()
+	{
+		return $this->type() === EEM_Line_Item::type_total;
+	}
+
+
+	/**
+	 * @return bool
+	 * @throws EE_Error
+	 */
+	public function is_cancelled()
+	{
+		return $this->type() === EEM_Line_Item::type_cancellation;
+	}
+
+
+	/**
+	 * @return string like '2, 004.00', formatted according to the localized currency
+	 * @throws EE_Error
+	 */
+	public function unit_price_no_code()
+	{
+		return $this->get_pretty('LIN_unit_price', 'no_currency_code');
+	}
+
+
+	/**
+	 * @return string like '2, 004.00', formatted according to the localized currency
+	 * @throws EE_Error
+	 */
+	public function total_no_code()
+	{
+		return $this->get_pretty('LIN_total', 'no_currency_code');
+	}
+
+
+	/**
+	 * Gets the final total on this item, taking taxes into account.
+	 * Has the side-effect of setting the sub-total as it was just calculated.
+	 * If this is used on a grand-total line item, also updates the transaction's
+	 * TXN_total (provided this line item is allowed to persist, otherwise we don't
+	 * want to change a persistable transaction with info from a non-persistent line item)
+	 *
+	 * @return float
+	 * @throws EE_Error
+	 * @throws InvalidArgumentException
+	 * @throws InvalidInterfaceException
+	 * @throws InvalidDataTypeException
+	 */
+	public function recalculate_total_including_taxes()
+	{
+		$pre_tax_total = $this->recalculate_pre_tax_total();
+		$tax_total = $this->recalculate_taxes_and_tax_total();
+		$total = $pre_tax_total + $tax_total;
+		// no negative totals plz
+		$total = max($total, 0);
+		$this->set_total($total);
+		// only update the related transaction's total
+		// if we intend to save this line item and its a grand total
+		if ($this->allow_persist() && $this->type() === EEM_Line_Item::type_total
+			&& $this->transaction()
+			   instanceof
+			   EE_Transaction
+		) {
+			$this->transaction()->set_total($total);
+			if ($this->transaction()->ID()) {
+				$this->transaction()->save();
+			}
+		}
+		$this->maybe_save();
+		return $total;
+	}
+
+
+	/**
+	 * Recursively goes through all the children and recalculates sub-totals EXCEPT for
+	 * tax-sub-totals (they're a an odd beast). Updates the 'total' on each line item according to either its
+	 * unit price * quantity or the total of all its children EXCEPT when we're only calculating the taxable total and
+	 * when this is called on the grand total
+	 *
+	 * @return float
+	 * @throws InvalidArgumentException
+	 * @throws InvalidInterfaceException
+	 * @throws InvalidDataTypeException
+	 * @throws EE_Error
+	 */
+	public function recalculate_pre_tax_total()
+	{
+		$total = 0;
+		$my_children = $this->children();
+		$has_children = ! empty($my_children);
+		if ($has_children && $this->is_line_item()) {
+			$total = $this->_recalculate_pretax_total_for_line_item($total, $my_children);
+		} elseif (! $has_children && ($this->is_sub_line_item() || $this->is_line_item())) {
+			$total = $this->unit_price() * $this->quantity();
+		} elseif ($this->is_sub_total() || $this->is_total()) {
+			$total = $this->_recalculate_pretax_total_for_subtotal($total, $my_children);
+		} elseif ($this->is_tax_sub_total() || $this->is_tax() || $this->is_cancelled()) {
+			// completely ignore tax totals, tax sub-totals, and cancelled line items, when calculating the pre-tax-total
+			return 0;
+		}
+		// ensure all non-line items and non-sub-line-items have a quantity of 1 (except for Events)
+		if (! $this->is_line_item() && ! $this->is_sub_line_item() && ! $this->is_cancellation()
+		) {
+			if ($this->OBJ_type() !== 'Event') {
+				$this->set_quantity(1);
+			}
+			if (! $this->is_percent()) {
+				$this->set_unit_price($total);
+			}
+		}
+		// we don't want to bother saving grand totals, because that needs to factor in taxes anyways
+		// so it ought to be
+		if (! $this->is_total()) {
+			$this->set_total($total);
+			// if not a percent line item, make sure we keep the unit price in sync
+			if ($has_children
+				&& $this->is_line_item()
+				&& ! $this->is_percent()
+			) {
+				if ($this->quantity() === 0) {
+					$new_unit_price = 0;
+				} else {
+					$new_unit_price = $this->total() / $this->quantity();
+				}
+				$this->set_unit_price($new_unit_price);
+			}
+			$this->maybe_save();
+		}
+		return $total;
+	}
+
+
+	/**
+	 * Calculates the pretax total when this line item is a subtotal or total line item.
+	 * Basically does a sum-then-round approach (ie, any percent line item that are children
+	 * will calculate their total based on the un-rounded total we're working with so far, and
+	 * THEN round the result; instead of rounding as we go like with sub-line-items)
+	 *
+	 * @param float          $calculated_total_so_far
+	 * @param EE_Line_Item[] $my_children
+	 * @return float
+	 * @throws InvalidArgumentException
+	 * @throws InvalidInterfaceException
+	 * @throws InvalidDataTypeException
+	 * @throws EE_Error
+	 */
+	protected function _recalculate_pretax_total_for_subtotal($calculated_total_so_far, $my_children = null)
+	{
+		if ($my_children === null) {
+			$my_children = $this->children();
+		}
+		$subtotal_quantity = 0;
+		// get the total of all its children
+		foreach ($my_children as $child_line_item) {
+			if ($child_line_item instanceof EE_Line_Item && ! $child_line_item->is_cancellation()) {
+				// percentage line items are based on total so far
+				if ($child_line_item->is_percent()) {
+					// round as we go so that the line items add up ok
+					$percent_total = round(
+						$calculated_total_so_far * $child_line_item->percent() / 100,
+						EE_Registry::instance()->CFG->currency->dec_plc
+					);
+					$child_line_item->set_total($percent_total);
+					// so far all percent line items should have a quantity of 1
+					// (ie, no double percent discounts. Although that might be requested someday)
+					$child_line_item->set_quantity(1);
+					$child_line_item->maybe_save();
+					$calculated_total_so_far += $percent_total;
+				} else {
+					// verify flat sub-line-item quantities match their parent
+					if ($child_line_item->is_sub_line_item()) {
+						$child_line_item->set_quantity($this->quantity());
+					}
+					$calculated_total_so_far += $child_line_item->recalculate_pre_tax_total();
+					$subtotal_quantity += $child_line_item->quantity();
+				}
+			}
+		}
+		if ($this->is_sub_total()) {
+			// no negative totals plz
+			$calculated_total_so_far = max($calculated_total_so_far, 0);
+			$subtotal_quantity = $subtotal_quantity > 0 ? 1 : 0;
+			$this->set_quantity($subtotal_quantity);
+			$this->maybe_save();
+		}
+		return $calculated_total_so_far;
+	}
+
+
+	/**
+	 * Calculates the pretax total for a normal line item, in a round-then-sum approach
+	 * (where each sub-line-item is applied to the base price for the line item
+	 * and the result is immediately rounded, rather than summing all the sub-line-items
+	 * then rounding, like we do when recalculating pretax totals on totals and subtotals).
+	 *
+	 * @param float          $calculated_total_so_far
+	 * @param EE_Line_Item[] $my_children
+	 * @return float
+	 * @throws InvalidArgumentException
+	 * @throws InvalidInterfaceException
+	 * @throws InvalidDataTypeException
+	 * @throws EE_Error
+	 */
+	protected function _recalculate_pretax_total_for_line_item($calculated_total_so_far, $my_children = null)
+	{
+		if ($my_children === null) {
+			$my_children = $this->children();
+		}
+		// we need to keep track of the running total for a single item,
+		// because we need to round as we go
+		$unit_price_for_total = 0;
+		$quantity_for_total = 1;
+		// get the total of all its children
+		foreach ($my_children as $child_line_item) {
+			if ($child_line_item instanceof EE_Line_Item && ! $child_line_item->is_cancellation()) {
+				if ($child_line_item->is_percent()) {
+					// it should be the unit-price-so-far multiplied by teh percent multiplied by the quantity
+					// not total multiplied by percent, because that ignores rounding along-the-way
+					$percent_unit_price = round(
+						$unit_price_for_total * $child_line_item->percent() / 100,
+						EE_Registry::instance()->CFG->currency->dec_plc
+					);
+					$percent_total = $percent_unit_price * $quantity_for_total;
+					$child_line_item->set_total($percent_total);
+					// so far all percent line items should have a quantity of 1
+					// (ie, no double percent discounts. Although that might be requested someday)
+					$child_line_item->set_quantity(1);
+					$child_line_item->maybe_save();
+					$calculated_total_so_far += $percent_total;
+					$unit_price_for_total += $percent_unit_price;
+				} else {
+					// verify flat sub-line-item quantities match their parent
+					if ($child_line_item->is_sub_line_item()) {
+						$child_line_item->set_quantity($this->quantity());
+					}
+					$quantity_for_total = $child_line_item->quantity();
+					$calculated_total_so_far += $child_line_item->recalculate_pre_tax_total();
+					$unit_price_for_total += $child_line_item->unit_price();
+				}
+			}
+		}
+		return $calculated_total_so_far;
+	}
+
+
+	/**
+	 * Recalculates the total on each individual tax (based on a recalculation of the pre-tax total), sets
+	 * the totals on each tax calculated, and returns the final tax total. Re-saves tax line items
+	 * and tax sub-total if already in the DB
+	 *
+	 * @return float
+	 * @throws EE_Error
+	 */
+	public function recalculate_taxes_and_tax_total()
+	{
+		// get all taxes
+		$taxes = $this->tax_descendants();
+		// calculate the pretax total
+		$taxable_total = $this->taxable_total();
+		$tax_total = 0;
+		foreach ($taxes as $tax) {
+			$total_on_this_tax = $taxable_total * $tax->percent() / 100;
+			// remember the total on this line item
+			$tax->set_total($total_on_this_tax);
+			$tax->maybe_save();
+			$tax_total += $tax->total();
+		}
+		$this->_recalculate_tax_sub_total();
+		return $tax_total;
+	}
+
+
+	/**
+	 * Simply forces all the tax-sub-totals to recalculate. Assumes the taxes have been calculated
+	 *
+	 * @return void
+	 * @throws EE_Error
+	 */
+	private function _recalculate_tax_sub_total()
+	{
+		if ($this->is_tax_sub_total()) {
+			$total = 0;
+			$total_percent = 0;
+			// simply loop through all its children (which should be taxes) and sum their total
+			foreach ($this->children() as $child_tax) {
+				if ($child_tax instanceof EE_Line_Item) {
+					$total += $child_tax->total();
+					$total_percent += $child_tax->percent();
+				}
+			}
+			$this->set_total($total);
+			$this->set_percent($total_percent);
+			$this->maybe_save();
+		} elseif ($this->is_total()) {
+			foreach ($this->children() as $maybe_tax_subtotal) {
+				if ($maybe_tax_subtotal instanceof EE_Line_Item) {
+					$maybe_tax_subtotal->_recalculate_tax_sub_total();
+				}
+			}
+		}
+	}
+
+
+	/**
+	 * Gets the total tax on this line item. Assumes taxes have already been calculated using
+	 * recalculate_taxes_and_total
+	 *
+	 * @return float
+	 * @throws EE_Error
+	 */
+	public function get_total_tax()
+	{
+		$this->_recalculate_tax_sub_total();
+		$total = 0;
+		foreach ($this->tax_descendants() as $tax_line_item) {
+			if ($tax_line_item instanceof EE_Line_Item) {
+				$total += $tax_line_item->total();
+			}
+		}
+		return $total;
+	}
+
+
+	/**
+	 * Gets the total for all the items purchased only
+	 *
+	 * @return float
+	 * @throws EE_Error
+	 */
+	public function get_items_total()
+	{
+		// by default, let's make sure we're consistent with the existing line item
+		if ($this->is_total()) {
+			$pretax_subtotal_li = EEH_Line_Item::get_pre_tax_subtotal($this);
+			if ($pretax_subtotal_li instanceof EE_Line_Item) {
+				return $pretax_subtotal_li->total();
+			}
+		}
+		$total = 0;
+		foreach ($this->get_items() as $item) {
+			if ($item instanceof EE_Line_Item) {
+				$total += $item->total();
+			}
+		}
+		return $total;
+	}
+
+
+	/**
+	 * Gets all the descendants (ie, children or children of children etc) that
+	 * are of the type 'tax'
+	 *
+	 * @return EE_Line_Item[]
+	 */
+	public function tax_descendants()
+	{
+		return EEH_Line_Item::get_tax_descendants($this);
+	}
+
+
+	/**
+	 * Gets all the real items purchased which are children of this item
+	 *
+	 * @return EE_Line_Item[]
+	 */
+	public function get_items()
+	{
+		return EEH_Line_Item::get_line_item_descendants($this);
+	}
+
+
+	/**
+	 * Returns the amount taxable among this line item's children (or if it has no children,
+	 * how much of it is taxable). Does not recalculate totals or subtotals.
+	 * If the taxable total is negative, (eg, if none of the tickets were taxable,
+	 * but there is a "Taxable" discount), returns 0.
+	 *
+	 * @return float
+	 * @throws EE_Error
+	 */
+	public function taxable_total()
+	{
+		$total = 0;
+		if ($this->children()) {
+			foreach ($this->children() as $child_line_item) {
+				if ($child_line_item->type() === EEM_Line_Item::type_line_item && $child_line_item->is_taxable()) {
+					// if it's a percent item, only take into account the percent
+					// that's taxable too (the taxable total so far)
+					if ($child_line_item->is_percent()) {
+						$total += ($total * $child_line_item->percent() / 100);
+					} else {
+						$total += $child_line_item->total();
+					}
+				} elseif ($child_line_item->type() === EEM_Line_Item::type_sub_total) {
+					$total += $child_line_item->taxable_total();
+				}
+			}
+		}
+		return max($total, 0);
+	}
+
+
+	/**
+	 * Gets the transaction for this line item
+	 *
+	 * @return EE_Base_Class|EE_Transaction
+	 * @throws EE_Error
+	 */
+	public function transaction()
+	{
+		return $this->get_first_related('Transaction');
+	}
+
+
+	/**
+	 * Saves this line item to the DB, and recursively saves its descendants.
+	 * Because there currently is no proper parent-child relation on the model,
+	 * save_this_and_cached() will NOT save the descendants.
+	 * Also sets the transaction on this line item and all its descendants before saving
+	 *
+	 * @param int $txn_id if none is provided, assumes $this->TXN_ID()
+	 * @return int count of items saved
+	 * @throws EE_Error
+	 */
+	public function save_this_and_descendants_to_txn($txn_id = null)
+	{
+		$count = 0;
+		if (! $txn_id) {
+			$txn_id = $this->TXN_ID();
+		}
+		$this->set_TXN_ID($txn_id);
+		$children = $this->children();
+		$count += $this->save()
+			? 1
+			: 0;
+		foreach ($children as $child_line_item) {
+			if ($child_line_item instanceof EE_Line_Item) {
+				$child_line_item->set_parent_ID($this->ID());
+				$count += $child_line_item->save_this_and_descendants_to_txn($txn_id);
+			}
+		}
+		return $count;
+	}
+
+
+	/**
+	 * Saves this line item to the DB, and recursively saves its descendants.
+	 *
+	 * @return int count of items saved
+	 * @throws EE_Error
+	 */
+	public function save_this_and_descendants()
+	{
+		$count = 0;
+		$children = $this->children();
+		$count += $this->save()
+			? 1
+			: 0;
+		foreach ($children as $child_line_item) {
+			if ($child_line_item instanceof EE_Line_Item) {
+				$child_line_item->set_parent_ID($this->ID());
+				$count += $child_line_item->save_this_and_descendants();
+			}
+		}
+		return $count;
+	}
+
+
+	/**
+	 * returns the cancellation line item if this item was cancelled
+	 *
+	 * @return EE_Line_Item[]
+	 * @throws InvalidArgumentException
+	 * @throws InvalidInterfaceException
+	 * @throws InvalidDataTypeException
+	 * @throws ReflectionException
+	 * @throws EE_Error
+	 */
+	public function get_cancellations()
+	{
+		EE_Registry::instance()->load_helper('Line_Item');
+		return EEH_Line_Item::get_descendants_of_type($this, EEM_Line_Item::type_cancellation);
+	}
+
+
+	/**
+	 * If this item has an ID, then this saves it again to update the db
+	 *
+	 * @return int count of items saved
+	 * @throws EE_Error
+	 */
+	public function maybe_save()
+	{
+		if ($this->ID()) {
+			return $this->save();
+		}
+		return false;
+	}
+
+
+	/**
+	 * clears the cached children and parent from the line item
+	 *
+	 * @return void
+	 */
+	public function clear_related_line_item_cache()
+	{
+		$this->_children = array();
+		$this->_parent = null;
+	}
+
+
+	/**
+	 * @param bool $raw
+	 * @return int
+	 * @throws EE_Error
+	 */
+	public function timestamp($raw = false)
+	{
+		return $raw
+			? $this->get_raw('LIN_timestamp')
+			: $this->get('LIN_timestamp');
+	}
+
+
+
+
+	/************************* DEPRECATED *************************/
+	/**
+	 * @deprecated 4.6.0
+	 * @param string $type one of the constants on EEM_Line_Item
+	 * @return EE_Line_Item[]
+	 */
+	protected function _get_descendants_of_type($type)
+	{
+		EE_Error::doing_it_wrong(
+			'EE_Line_Item::_get_descendants_of_type()',
+			__('Method replaced with EEH_Line_Item::get_descendants_of_type()', 'event_espresso'),
+			'4.6.0'
+		);
+		return EEH_Line_Item::get_descendants_of_type($this, $type);
+	}
+
+
+	/**
+	 * @deprecated 4.6.0
+	 * @param string $type like one of the EEM_Line_Item::type_*
+	 * @return EE_Line_Item
+	 */
+	public function get_nearest_descendant_of_type($type)
+	{
+		EE_Error::doing_it_wrong(
+			'EE_Line_Item::get_nearest_descendant_of_type()',
+			__('Method replaced with EEH_Line_Item::get_nearest_descendant_of_type()', 'event_espresso'),
+			'4.6.0'
+		);
+		return EEH_Line_Item::get_nearest_descendant_of_type($this, $type);
+	}
 }

Spacing +15 added lines, -15 removed lines

@@ -72,7 +72,7 @@ 
     protected function __construct($fieldValues = array(), $bydb = false, $timezone = '')
     {
         parent::__construct($fieldValues, $bydb, $timezone);
-        if (! $this->get('LIN_code')) {
+        if ( ! $this->get('LIN_code')) {
             $this->set_code($this->generate_code());
         }
     }
@@ -123,7 +123,7 @@ 
     public function name()
     {
         $name = $this->get('LIN_name');
-        if (! $name) {
+        if ( ! $name) {
             $name = ucwords(str_replace('-', ' ', $this->type()));
         }
         return $name;
@@ -480,7 +480,7 @@ 
                 )
             );
         }
-        if (! is_array($this->_children)) {
+        if ( ! is_array($this->_children)) {
             $this->_children = array();
         }
         return $this->_children;
@@ -676,7 +676,7 @@ 
             }
             return $line_item->save();
         }
-        $this->_children[ $line_item->code() ] = $line_item;
+        $this->_children[$line_item->code()] = $line_item;
         if ($line_item->parent() !== $this) {
             $line_item->set_parent($this);
         }
@@ -696,7 +696,7 @@ 
     public function set_parent($line_item)
     {
         if ($this->ID()) {
-            if (! $line_item->ID()) {
+            if ( ! $line_item->ID()) {
                 $line_item->save();
             }
             $this->set_parent_ID($line_item->ID());
@@ -724,8 +724,8 @@ 
                 array(array('LIN_parent' => $this->ID(), 'LIN_code' => $code))
             );
         }
-        return isset($this->_children[ $code ])
-            ? $this->_children[ $code ]
+        return isset($this->_children[$code])
+            ? $this->_children[$code]
             : null;
     }
 
@@ -777,8 +777,8 @@ 
             }
             return $items_deleted;
         }
-        if (isset($this->_children[ $code ])) {
-            unset($this->_children[ $code ]);
+        if (isset($this->_children[$code])) {
+            unset($this->_children[$code]);
             return 1;
         }
         return 0;
@@ -811,7 +811,7 @@ 
     public function generate_code()
     {
         // each line item in the cart requires a unique identifier
-        return md5($this->get('OBJ_type') . $this->get('OBJ_ID') . microtime());
+        return md5($this->get('OBJ_type').$this->get('OBJ_ID').microtime());
     }
 
 
@@ -974,7 +974,7 @@ 
         $has_children = ! empty($my_children);
         if ($has_children && $this->is_line_item()) {
             $total = $this->_recalculate_pretax_total_for_line_item($total, $my_children);
-        } elseif (! $has_children && ($this->is_sub_line_item() || $this->is_line_item())) {
+        } elseif ( ! $has_children && ($this->is_sub_line_item() || $this->is_line_item())) {
             $total = $this->unit_price() * $this->quantity();
         } elseif ($this->is_sub_total() || $this->is_total()) {
             $total = $this->_recalculate_pretax_total_for_subtotal($total, $my_children);
@@ -983,18 +983,18 @@ 
             return 0;
         }
         // ensure all non-line items and non-sub-line-items have a quantity of 1 (except for Events)
-        if (! $this->is_line_item() && ! $this->is_sub_line_item() && ! $this->is_cancellation()
+        if ( ! $this->is_line_item() && ! $this->is_sub_line_item() && ! $this->is_cancellation()
         ) {
             if ($this->OBJ_type() !== 'Event') {
                 $this->set_quantity(1);
             }
-            if (! $this->is_percent()) {
+            if ( ! $this->is_percent()) {
                 $this->set_unit_price($total);
             }
         }
         // we don't want to bother saving grand totals, because that needs to factor in taxes anyways
         // so it ought to be
-        if (! $this->is_total()) {
+        if ( ! $this->is_total()) {
             $this->set_total($total);
             // if not a percent line item, make sure we keep the unit price in sync
             if ($has_children
@@ -1309,7 +1309,7 @@ 
     public function save_this_and_descendants_to_txn($txn_id = null)
     {
         $count = 0;
-        if (! $txn_id) {
+        if ( ! $txn_id) {
             $txn_id = $this->TXN_ID();
         }
         $this->set_TXN_ID($txn_id);

core/db_classes/EE_Term_Relationship.class.php

Indentation +17 added lines, -17 removed lines

@@ -10,23 +10,23 @@
 class EE_Term_Relationship extends EE_Base_Class
 {
 
-    /**
-     * @param array $props_n_values
-     * @return EE_Term_Relationship
-     */
-    public static function new_instance($props_n_values = array())
-    {
-        $has_object = parent::_check_for_object($props_n_values, __CLASS__);
-        return $has_object ? $has_object : new self($props_n_values);
-    }
+	/**
+	 * @param array $props_n_values
+	 * @return EE_Term_Relationship
+	 */
+	public static function new_instance($props_n_values = array())
+	{
+		$has_object = parent::_check_for_object($props_n_values, __CLASS__);
+		return $has_object ? $has_object : new self($props_n_values);
+	}
 
 
-    /**
-     * @param array $props_n_values
-     * @return EE_Term_Relationship
-     */
-    public static function new_instance_from_db($props_n_values = array())
-    {
-        return new self($props_n_values, true);
-    }
+	/**
+	 * @param array $props_n_values
+	 * @return EE_Term_Relationship
+	 */
+	public static function new_instance_from_db($props_n_values = array())
+	{
+		return new self($props_n_values, true);
+	}
 }

core/db_classes/EE_Export.class.php

Indentation +773 added lines, -773 removed lines

@@ -16,777 +16,777 @@
 class EE_Export
 {
 
-    const option_prefix = 'ee_report_job_';
-
-
-    // instance of the EE_Export object
-    private static $_instance = null;
-
-    // instance of the EE_CSV object
-    /**
-     *
-     * @var EE_CSV
-     */
-    public $EE_CSV = null;
-
-
-    private $_req_data = array();
-
-
-    /**
-     *        private constructor to prevent direct creation
-     *
-     * @Constructor
-     * @access private
-     * @param array $request_data
-     */
-    private function __construct($request_data = array())
-    {
-        $this->_req_data = $request_data;
-        $this->today = date("Y-m-d", time());
-        require_once(EE_CLASSES . 'EE_CSV.class.php');
-        $this->EE_CSV = EE_CSV::instance();
-    }
-
-
-    /**
-     *        @ singleton method used to instantiate class object
-     *        @ access public
-     *
-     * @param array $request_data
-     * @return \EE_Export
-     */
-    public static function instance($request_data = array())
-    {
-        // check if class object is instantiated
-        if (self::$_instance === null or ! is_object(self::$_instance) or ! (self::$_instance instanceof EE_Export)) {
-            self::$_instance = new self($request_data);
-        }
-        return self::$_instance;
-    }
-
-
-    /**
-     * @Export Event Espresso data - routes export requests
-     * @access public
-     * @return void | bool
-     */
-    public function export()
-    {
-        // in case of bulk exports, the "actual" action will be in action2, but first check regular action for "export" keyword
-        if (isset($this->_req_data['action']) && strpos($this->_req_data['action'], 'export') === false) {
-            // check if action2 has export action
-            if (isset($this->_req_data['action2']) && strpos($this->_req_data['action2'], 'export') !== false) {
-                // whoop! there it is!
-                $this->_req_data['action'] = $this->_req_data['action2'];
-            }
-        }
-
-        $this->_req_data['export'] = isset($this->_req_data['export']) ? $this->_req_data['export'] : '';
-
-        switch ($this->_req_data['export']) {
-            case 'report':
-                switch ($this->_req_data['action']) {
-                    case "event":
-                    case "export_events":
-                    case 'all_event_data':
-                        $this->export_all_event_data();
-                        break;
-
-                    case 'registrations_report_for_event':
-                        $this->report_registrations_for_event($this->_req_data['EVT_ID']);
-                        break;
-
-                    case 'attendees':
-                        $this->export_attendees();
-                        break;
-
-                    case 'categories':
-                        $this->export_categories();
-                        break;
-
-                    default:
-                        EE_Error::add_error(
-                            __('An error occurred! The requested export report could not be found.', 'event_espresso'),
-                            __FILE__,
-                            __FUNCTION__,
-                            __LINE__
-                        );
-                        return false;
-                        break;
-                }
-                break; // end of switch export : report
-            default:
-                break;
-        } // end of switch export
-
-        exit;
-    }
-
-    /**
-     * Downloads a CSV file with all the columns, but no data. This should be used for importing
-     *
-     * @return null kills execution
-     */
-    public function export_sample()
-    {
-        $event = EEM_Event::instance()->get_one();
-        $this->_req_data['EVT_ID'] = $event->ID();
-        $this->export_all_event_data();
-    }
-
-
-    /**
-     * @Export data for ALL events
-     * @access public
-     * @return void
-     */
-    public function export_all_event_data()
-    {
-        // are any Event IDs set?
-        $event_query_params = array();
-        $related_models_query_params = array();
-        $related_through_reg_query_params = array();
-        $datetime_ticket_query_params = array();
-        $price_query_params = array();
-        $price_type_query_params = array();
-        $term_query_params = array();
-        $state_country_query_params = array();
-        $question_group_query_params = array();
-        $question_query_params = array();
-        if (isset($this->_req_data['EVT_ID'])) {
-            // do we have an array of IDs ?
-
-            if (is_array($this->_req_data['EVT_ID'])) {
-                $EVT_IDs = array_map('sanitize_text_field', $this->_req_data['EVT_ID']);
-                $value_to_equal = array('IN', $EVT_IDs);
-                $filename = 'events';
-            } else {
-                // generate regular where = clause
-                $EVT_ID = absint($this->_req_data['EVT_ID']);
-                $value_to_equal = $EVT_ID;
-                $event = EE_Registry::instance()->load_model('Event')->get_one_by_ID($EVT_ID);
-
-                $filename = 'event-' . ($event instanceof EE_Event ? $event->slug() : __('unknown', 'event_espresso'));
-            }
-            $event_query_params[0]['EVT_ID'] = $value_to_equal;
-            $related_models_query_params[0]['Event.EVT_ID'] = $value_to_equal;
-            $related_through_reg_query_params[0]['Registration.EVT_ID'] = $value_to_equal;
-            $datetime_ticket_query_params[0]['Datetime.EVT_ID'] = $value_to_equal;
-            $price_query_params[0]['Ticket.Datetime.EVT_ID'] = $value_to_equal;
-            $price_type_query_params[0]['Price.Ticket.Datetime.EVT_ID'] = $value_to_equal;
-            $term_query_params[0]['Term_Taxonomy.Event.EVT_ID'] = $value_to_equal;
-            $state_country_query_params[0]['Venue.Event.EVT_ID'] = $value_to_equal;
-            $question_group_query_params[0]['Event.EVT_ID'] = $value_to_equal;
-            $question_query_params[0]['Question_Group.Event.EVT_ID'] = $value_to_equal;
-        } else {
-            $filename = 'all-events';
-        }
-
-
-        // array in the format:  table name =>  query where clause
-        $models_to_export = array(
-            'Event'                   => $event_query_params,
-            'Datetime'                => $related_models_query_params,
-            'Ticket_Template'         => $price_query_params,
-            'Ticket'                  => $datetime_ticket_query_params,
-            'Datetime_Ticket'         => $datetime_ticket_query_params,
-            'Price_Type'              => $price_type_query_params,
-            'Price'                   => $price_query_params,
-            'Ticket_Price'            => $price_query_params,
-            'Term'                    => $term_query_params,
-            'Term_Taxonomy'           => $related_models_query_params,
-            'Term_Relationship'       => $related_models_query_params, // model has NO primary key...
-            'Country'                 => $state_country_query_params,
-            'State'                   => $state_country_query_params,
-            'Venue'                   => $related_models_query_params,
-            'Event_Venue'             => $related_models_query_params,
-            'Question_Group'          => $question_group_query_params,
-            'Event_Question_Group'    => $question_group_query_params,
-            'Question'                => $question_query_params,
-            'Question_Group_Question' => $question_query_params,
-            // 'Transaction'=>$related_through_reg_query_params,
-            // 'Registration'=>$related_models_query_params,
-            // 'Attendee'=>$related_through_reg_query_params,
-            // 'Line_Item'=>
-
-        );
-
-        $model_data = $this->_get_export_data_for_models($models_to_export);
-
-        $filename = $this->generate_filename($filename);
-
-        if (! $this->EE_CSV->export_multiple_model_data_to_csv($filename, $model_data)) {
-            EE_Error::add_error(
-                __(
-                    "'An error occurred and the Event details could not be exported from the database.'",
-                    "event_espresso"
-                ),
-                __FILE__,
-                __FUNCTION__,
-                __LINE__
-            );
-        }
-    }
-
-    public function report_attendees()
-    {
-        $attendee_rows = EEM_Attendee::instance()->get_all_wpdb_results(
-            array(
-                'force_join' => array('State', 'Country'),
-                'caps'       => EEM_Base::caps_read_admin,
-            )
-        );
-        $csv_data = array();
-        foreach ($attendee_rows as $attendee_row) {
-            $csv_row = array();
-            foreach (EEM_Attendee::instance()->field_settings() as $field_name => $field_obj) {
-                if ($field_name == 'STA_ID') {
-                    $state_name_field = EEM_State::instance()->field_settings_for('STA_name');
-                    $csv_row[ __('State', 'event_espresso') ] = $attendee_row[ $state_name_field->get_qualified_column(
-                    ) ];
-                } elseif ($field_name == 'CNT_ISO') {
-                    $country_name_field = EEM_Country::instance()->field_settings_for('CNT_name');
-                    $csv_row[ __(
-                        'Country',
-                        'event_espresso'
-                    ) ] = $attendee_row[ $country_name_field->get_qualified_column() ];
-                } else {
-                    $csv_row[ $field_obj->get_nicename() ] = $attendee_row[ $field_obj->get_qualified_column() ];
-                }
-            }
-            $csv_data[] = $csv_row;
-        }
-
-        $filename = $this->generate_filename('contact-list-report');
-
-        $handle = $this->EE_CSV->begin_sending_csv($filename);
-        $this->EE_CSV->write_data_array_to_csv($handle, $csv_data);
-        $this->EE_CSV->end_sending_csv($handle);
-    }
-
-
-    /**
-     * @Export data for ALL attendees
-     * @access public
-     * @return void
-     */
-    public function export_attendees()
-    {
-
-        $states_that_have_an_attendee = EEM_State::instance()->get_all(
-            array(0 => array('Attendee.ATT_ID' => array('IS NOT NULL')))
-        );
-        $countries_that_have_an_attendee = EEM_Country::instance()->get_all(
-            array(0 => array('Attendee.ATT_ID' => array('IS NOT NULL')))
-        );
-        // $states_to_export_query_params
-        $models_to_export = array(
-            'Country'  => array(array('CNT_ISO' => array('IN', array_keys($countries_that_have_an_attendee)))),
-            'State'    => array(array('STA_ID' => array('IN', array_keys($states_that_have_an_attendee)))),
-            'Attendee' => array(),
-        );
-
-
-        $model_data = $this->_get_export_data_for_models($models_to_export);
-        $filename = $this->generate_filename('all-attendees');
-
-        if (! $this->EE_CSV->export_multiple_model_data_to_csv($filename, $model_data)) {
-            EE_Error::add_error(
-                __(
-                    'An error occurred and the Attendee data could not be exported from the database.',
-                    'event_espresso'
-                ),
-                __FILE__,
-                __FUNCTION__,
-                __LINE__
-            );
-        }
-    }
-
-    /**
-     * Shortcut for preparing a database result for display
-     *
-     * @param EEM_Base       $model
-     * @param string         $field_name
-     * @param string         $raw_db_value
-     * @param boolean|string $pretty_schema true to display pretty, a string to use a specific "Schema", or false to
-     *                                      NOT display pretty
-     * @return string
-     */
-    protected function _prepare_value_from_db_for_display($model, $field_name, $raw_db_value, $pretty_schema = true)
-    {
-        $field_obj = $model->field_settings_for($field_name);
-        $value_on_model_obj = $field_obj->prepare_for_set_from_db($raw_db_value);
-        if ($field_obj instanceof EE_Datetime_Field) {
-            $field_obj->set_date_format(
-                EE_CSV::instance()->get_date_format_for_csv($field_obj->get_date_format($pretty_schema)),
-                $pretty_schema
-            );
-            $field_obj->set_time_format(
-                EE_CSV::instance()->get_time_format_for_csv($field_obj->get_time_format($pretty_schema)),
-                $pretty_schema
-            );
-        }
-        if ($pretty_schema === true) {
-            return $field_obj->prepare_for_pretty_echoing($value_on_model_obj);
-        } elseif (is_string($pretty_schema)) {
-            return $field_obj->prepare_for_pretty_echoing($value_on_model_obj, $pretty_schema);
-        } else {
-            return $field_obj->prepare_for_get($value_on_model_obj);
-        }
-    }
-
-    /**
-     * Export a custom CSV of registration info including: A bunch of the reg fields, the time of the event, the price
-     * name, and the questions associated with the registrations
-     *
-     * @param int $event_id
-     */
-    public function report_registrations_for_event($event_id = null)
-    {
-        $reg_fields_to_include = array(
-            'TXN_ID',
-            'ATT_ID',
-            'REG_ID',
-            'REG_date',
-            'REG_code',
-            'REG_count',
-            'REG_final_price',
-
-        );
-        $att_fields_to_include = array(
-            'ATT_fname',
-            'ATT_lname',
-            'ATT_email',
-            'ATT_address',
-            'ATT_address2',
-            'ATT_city',
-            'STA_ID',
-            'CNT_ISO',
-            'ATT_zip',
-            'ATT_phone',
-        );
-
-        $registrations_csv_ready_array = array();
-        $reg_model = EE_Registry::instance()->load_model('Registration');
-        $query_params = apply_filters(
-            'FHEE__EE_Export__report_registration_for_event',
-            array(
-                array(
-                    'OR'                 => array(
-                        // don't include registrations from failed or abandoned transactions...
-                        'Transaction.STS_ID' => array(
-                            'NOT IN',
-                            array(EEM_Transaction::failed_status_code, EEM_Transaction::abandoned_status_code),
-                        ),
-                        // unless the registration is approved, in which case include it regardless of transaction status
-                        'STS_ID'             => EEM_Registration::status_id_approved,
-                    ),
-                    'Ticket.TKT_deleted' => array('IN', array(true, false)),
-                ),
-                'order_by'   => array('Transaction.TXN_ID' => 'asc', 'REG_count' => 'asc'),
-                'force_join' => array('Transaction', 'Ticket', 'Attendee'),
-                'caps'       => EEM_Base::caps_read_admin,
-            ),
-            $event_id
-        );
-        if ($event_id) {
-            $query_params[0]['EVT_ID'] = $event_id;
-        } else {
-            $query_params['force_join'][] = 'Event';
-        }
-        $registration_rows = $reg_model->get_all_wpdb_results($query_params);
-        // get all questions which relate to someone in this group
-        $registration_ids = array();
-        foreach ($registration_rows as $reg_row) {
-            $registration_ids[] = intval($reg_row['Registration.REG_ID']);
-        }
-        // EEM_Question::instance()->show_next_x_db_queries();
-        $questions_for_these_regs_rows = EEM_Question::instance()->get_all_wpdb_results(
-            array(array('Answer.REG_ID' => array('IN', $registration_ids)))
-        );
-        foreach ($registration_rows as $reg_row) {
-            if (is_array($reg_row)) {
-                $reg_csv_array = array();
-                if (! $event_id) {
-                    // get the event's name and Id
-                    $reg_csv_array[ __('Event', 'event_espresso') ] = sprintf(
-                        __('%1$s (%2$s)', 'event_espresso'),
-                        $this->_prepare_value_from_db_for_display(
-                            EEM_Event::instance(),
-                            'EVT_name',
-                            $reg_row['Event_CPT.post_title']
-                        ),
-                        $reg_row['Event_CPT.ID']
-                    );
-                }
-                $is_primary_reg = $reg_row['Registration.REG_count'] == '1' ? true : false;
-                /*@var $reg_row EE_Registration */
-                foreach ($reg_fields_to_include as $field_name) {
-                    $field = $reg_model->field_settings_for($field_name);
-                    if ($field_name == 'REG_final_price') {
-                        $value = $this->_prepare_value_from_db_for_display(
-                            $reg_model,
-                            $field_name,
-                            $reg_row['Registration.REG_final_price'],
-                            'localized_float'
-                        );
-                    } elseif ($field_name == 'REG_count') {
-                        $value = sprintf(
-                            __('%s of %s', 'event_espresso'),
-                            $this->_prepare_value_from_db_for_display(
-                                $reg_model,
-                                'REG_count',
-                                $reg_row['Registration.REG_count']
-                            ),
-                            $this->_prepare_value_from_db_for_display(
-                                $reg_model,
-                                'REG_group_size',
-                                $reg_row['Registration.REG_group_size']
-                            )
-                        );
-                    } elseif ($field_name == 'REG_date') {
-                        $value = $this->_prepare_value_from_db_for_display(
-                            $reg_model,
-                            $field_name,
-                            $reg_row['Registration.REG_date'],
-                            'no_html'
-                        );
-                    } else {
-                        $value = $this->_prepare_value_from_db_for_display(
-                            $reg_model,
-                            $field_name,
-                            $reg_row[ $field->get_qualified_column() ]
-                        );
-                    }
-                    $reg_csv_array[ $this->_get_column_name_for_field($field) ] = $value;
-                    if ($field_name == 'REG_final_price') {
-                        // add a column named Currency after the final price
-                        $reg_csv_array[ __("Currency", "event_espresso") ] = EE_Config::instance()->currency->code;
-                    }
-                }
-                // get pretty status
-                $stati = EEM_Status::instance()->localized_status(
-                    array(
-                        $reg_row['Registration.STS_ID']     => __('unknown', 'event_espresso'),
-                        $reg_row['TransactionTable.STS_ID'] => __('unknown', 'event_espresso'),
-                    ),
-                    false,
-                    'sentence'
-                );
-                $reg_csv_array[ __(
-                    "Registration Status",
-                    'event_espresso'
-                ) ] = $stati[ $reg_row['Registration.STS_ID'] ];
-                // get pretty trnasaction status
-                $reg_csv_array[ __(
-                    "Transaction Status",
-                    'event_espresso'
-                ) ] = $stati[ $reg_row['TransactionTable.STS_ID'] ];
-                $reg_csv_array[ __('Transaction Amount Due', 'event_espresso') ] = $is_primary_reg
-                    ? $this->_prepare_value_from_db_for_display(
-                        EEM_Transaction::instance(),
-                        'TXN_total',
-                        $reg_row['TransactionTable.TXN_total'],
-                        'localized_float'
-                    ) : '0.00';
-                $reg_csv_array[ __('Amount Paid', 'event_espresso') ] = $is_primary_reg
-                    ? $this->_prepare_value_from_db_for_display(
-                        EEM_Transaction::instance(),
-                        'TXN_paid',
-                        $reg_row['TransactionTable.TXN_paid'],
-                        'localized_float'
-                    ) : '0.00';
-                $payment_methods = array();
-                $gateway_txn_ids_etc = array();
-                $payment_times = array();
-                if ($is_primary_reg && $reg_row['TransactionTable.TXN_ID']) {
-                    $payments_info = EEM_Payment::instance()->get_all_wpdb_results(
-                        array(
-                            array(
-                                'TXN_ID' => $reg_row['TransactionTable.TXN_ID'],
-                                'STS_ID' => EEM_Payment::status_id_approved,
-                            ),
-                            'force_join' => array('Payment_Method'),
-                        ),
-                        ARRAY_A,
-                        'Payment_Method.PMD_admin_name as name, Payment.PAY_txn_id_chq_nmbr as gateway_txn_id, Payment.PAY_timestamp as payment_time'
-                    );
-
-                    foreach ($payments_info as $payment_method_and_gateway_txn_id) {
-                        $payment_methods[] = isset($payment_method_and_gateway_txn_id['name'])
-                            ? $payment_method_and_gateway_txn_id['name'] : __('Unknown', 'event_espresso');
-                        $gateway_txn_ids_etc[] = isset($payment_method_and_gateway_txn_id['gateway_txn_id'])
-                            ? $payment_method_and_gateway_txn_id['gateway_txn_id'] : '';
-                        $payment_times[] = isset($payment_method_and_gateway_txn_id['payment_time'])
-                            ? $payment_method_and_gateway_txn_id['payment_time'] : '';
-                    }
-                }
-                $reg_csv_array[ __('Payment Date(s)', 'event_espresso') ] = implode(',', $payment_times);
-                $reg_csv_array[ __('Payment Method(s)', 'event_espresso') ] = implode(",", $payment_methods);
-                $reg_csv_array[ __('Gateway Transaction ID(s)', 'event_espresso') ] = implode(
-                    ',',
-                    $gateway_txn_ids_etc
-                );
-
-                // get whether or not the user has checked in
-                $reg_csv_array[ __("Check-Ins", "event_espresso") ] = $reg_model->count_related(
-                    $reg_row['Registration.REG_ID'],
-                    'Checkin'
-                );
-                // get ticket of registration and its price
-                $ticket_model = EE_Registry::instance()->load_model('Ticket');
-                if ($reg_row['Ticket.TKT_ID']) {
-                    $ticket_name = $this->_prepare_value_from_db_for_display(
-                        $ticket_model,
-                        'TKT_name',
-                        $reg_row['Ticket.TKT_name']
-                    );
-                    $datetimes_strings = array();
-                    foreach (EEM_Datetime::instance()->get_all_wpdb_results(
-                        array(
-                            array('Ticket.TKT_ID' => $reg_row['Ticket.TKT_ID']),
-                            'order_by'                 => array('DTT_EVT_start' => 'ASC'),
-                            'default_where_conditions' => 'none',
-                        )
-                    ) as $datetime) {
-                        $datetimes_strings[] = $this->_prepare_value_from_db_for_display(
-                            EEM_Datetime::instance(),
-                            'DTT_EVT_start',
-                            $datetime['Datetime.DTT_EVT_start']
-                        );
-                    }
-                } else {
-                    $ticket_name = __('Unknown', 'event_espresso');
-                    $datetimes_strings = array(__('Unknown', 'event_espresso'));
-                }
-                $reg_csv_array[ $ticket_model->field_settings_for('TKT_name')->get_nicename() ] = $ticket_name;
-                $reg_csv_array[ __("Datetimes of Ticket", "event_espresso") ] = implode(", ", $datetimes_strings);
-                // get datetime(s) of registration
-
-                // add attendee columns
-                foreach ($att_fields_to_include as $att_field_name) {
-                    $field_obj = EEM_Attendee::instance()->field_settings_for($att_field_name);
-                    if ($reg_row['Attendee_CPT.ID']) {
-                        if ($att_field_name == 'STA_ID') {
-                            $value = EEM_State::instance()->get_var(
-                                array(array('STA_ID' => $reg_row['Attendee_Meta.STA_ID'])),
-                                'STA_name'
-                            );
-                        } elseif ($att_field_name == 'CNT_ISO') {
-                            $value = EEM_Country::instance()->get_var(
-                                array(array('CNT_ISO' => $reg_row['Attendee_Meta.CNT_ISO'])),
-                                'CNT_name'
-                            );
-                        } else {
-                            $value = $this->_prepare_value_from_db_for_display(
-                                EEM_Attendee::instance(),
-                                $att_field_name,
-                                $reg_row[ $field_obj->get_qualified_column() ]
-                            );
-                        }
-                    } else {
-                        $value = '';
-                    }
-
-                    $reg_csv_array[ $this->_get_column_name_for_field($field_obj) ] = $value;
-                }
-
-                // make sure each registration has the same questions in the same order
-                foreach ($questions_for_these_regs_rows as $question_row) {
-                    if (! isset($reg_csv_array[ $question_row['Question.QST_admin_label'] ])) {
-                        $reg_csv_array[ $question_row['Question.QST_admin_label'] ] = null;
-                    }
-                }
-                // now fill out the questions THEY answered
-                foreach (EEM_Answer::instance()->get_all_wpdb_results(
-                    array(array('REG_ID' => $reg_row['Registration.REG_ID']), 'force_join' => array('Question'))
-                ) as $answer_row) {
-                    /* @var $answer EE_Answer */
-                    if ($answer_row['Question.QST_ID']) {
-                        $question_label = $this->_prepare_value_from_db_for_display(
-                            EEM_Question::instance(),
-                            'QST_admin_label',
-                            $answer_row['Question.QST_admin_label']
-                        );
-                    } else {
-                        $question_label = sprintf(__('Question $s', 'event_espresso'), $answer_row['Answer.QST_ID']);
-                    }
-                    if (isset($answer_row['Question.QST_type']) && $answer_row['Question.QST_type'] == EEM_Question::QST_type_state) {
-                        $reg_csv_array[ $question_label ] = EEM_State::instance()->get_state_name_by_ID(
-                            $answer_row['Answer.ANS_value']
-                        );
-                    } else {
-                        $reg_csv_array[ $question_label ] = $this->_prepare_value_from_db_for_display(
-                            EEM_Answer::instance(),
-                            'ANS_value',
-                            $answer_row['Answer.ANS_value']
-                        );
-                    }
-                }
-                $registrations_csv_ready_array[] = apply_filters(
-                    'FHEE__EE_Export__report_registrations__reg_csv_array',
-                    $reg_csv_array,
-                    $reg_row
-                );
-            }
-        }
-
-        // if we couldn't export anything, we want to at least show the column headers
-        if (empty($registrations_csv_ready_array)) {
-            $reg_csv_array = array();
-            $model_and_fields_to_include = array(
-                'Registration' => $reg_fields_to_include,
-                'Attendee'     => $att_fields_to_include,
-            );
-            foreach ($model_and_fields_to_include as $model_name => $field_list) {
-                $model = EE_Registry::instance()->load_model($model_name);
-                foreach ($field_list as $field_name) {
-                    $field = $model->field_settings_for($field_name);
-                    $reg_csv_array[ $this->_get_column_name_for_field(
-                        $field
-                    ) ] = null;// $registration->get($field->get_name());
-                }
-            }
-            $registrations_csv_ready_array [] = $reg_csv_array;
-        }
-        if ($event_id) {
-            $event_slug = EEM_Event::instance()->get_var(array(array('EVT_ID' => $event_id)), 'EVT_slug');
-            if (! $event_slug) {
-                $event_slug = __('unknown', 'event_espresso');
-            }
-        } else {
-            $event_slug = __('all', 'event_espresso');
-        }
-        $filename = sprintf("registrations-for-%s", $event_slug);
-
-        $handle = $this->EE_CSV->begin_sending_csv($filename);
-        $this->EE_CSV->write_data_array_to_csv($handle, $registrations_csv_ready_array);
-        $this->EE_CSV->end_sending_csv($handle);
-    }
-
-    /**
-     * Gets the 'normal' column named for fields
-     *
-     * @param EE_Model_Field_Base $field
-     * @return string
-     */
-    protected function _get_column_name_for_field(EE_Model_Field_Base $field)
-    {
-        return $field->get_nicename() . "[" . $field->get_name() . "]";
-    }
-
-
-    /**
-     * @Export data for ALL events
-     * @access public
-     * @return void
-     */
-    public function export_categories()
-    {
-        // are any Event IDs set?
-        $query_params = array();
-        if (isset($this->_req_data['EVT_CAT_ID'])) {
-            // do we have an array of IDs ?
-            if (is_array($this->_req_data['EVT_CAT_ID'])) {
-                // generate an "IN (CSV)" where clause
-                $EVT_CAT_IDs = array_map('sanitize_text_field', $this->_req_data['EVT_CAT_ID']);
-                $filename = 'event-categories';
-                $query_params[0]['term_taxonomy_id'] = array('IN', $EVT_CAT_IDs);
-            } else {
-                // generate regular where = clause
-                $EVT_CAT_ID = absint($this->_req_data['EVT_CAT_ID']);
-                $filename = 'event-category#' . $EVT_CAT_ID;
-                $query_params[0]['term_taxonomy_id'] = $EVT_CAT_ID;
-            }
-        } else {
-            // no IDs means we will d/l the entire table
-            $filename = 'all-categories';
-        }
-
-        $tables_to_export = array(
-            'Term_Taxonomy' => $query_params,
-        );
-
-        $table_data = $this->_get_export_data_for_models($tables_to_export);
-        $filename = $this->generate_filename($filename);
-
-        if (! $this->EE_CSV->export_multiple_model_data_to_csv($filename, $table_data)) {
-            EE_Error::add_error(
-                __(
-                    'An error occurred and the Category details could not be exported from the database.',
-                    'event_espresso'
-                ),
-                __FILE__,
-                __FUNCTION__,
-                __LINE__
-            );
-        }
-    }
-
-
-    /**
-     * @process export name to create a suitable filename
-     * @access  private
-     * @param string - export_name
-     * @return string on success, FALSE on fail
-     */
-    private function generate_filename($export_name = '')
-    {
-        if ($export_name != '') {
-            $filename = get_bloginfo('name') . '-' . $export_name;
-            $filename = sanitize_key($filename) . '-' . $this->today;
-            return $filename;
-        } else {
-            EE_Error::add_error(__("No filename was provided", "event_espresso"), __FILE__, __FUNCTION__, __LINE__);
-        }
-        return false;
-    }
-
-
-    /**
-     * @recursive function for exporting table data and merging the results with the next results
-     * @access    private
-     * @param array $models_to_export keys are model names (eg 'Event', 'Attendee', etc.) and values are arrays of
-     *                                query params like on EEM_Base::get_all
-     * @return array on success, FALSE on fail
-     */
-    private function _get_export_data_for_models($models_to_export = array())
-    {
-        $table_data = false;
-        if (is_array($models_to_export)) {
-            foreach ($models_to_export as $model_name => $query_params) {
-                // check for a numerically-indexed array. in that case, $model_name is the value!!
-                if (is_int($model_name)) {
-                    $model_name = $query_params;
-                    $query_params = array();
-                }
-                $model = EE_Registry::instance()->load_model($model_name);
-                $model_objects = $model->get_all($query_params);
-
-                $table_data[ $model_name ] = array();
-                foreach ($model_objects as $model_object) {
-                    $model_data_array = array();
-                    $fields = $model->field_settings();
-                    foreach ($fields as $field) {
-                        $column_name = $field->get_nicename() . "[" . $field->get_name() . "]";
-                        if ($field instanceof EE_Datetime_Field) {
-                            // $field->set_date_format('Y-m-d');
-                            // $field->set_time_format('H:i:s');
-                            $model_data_array[ $column_name ] = $model_object->get_datetime(
-                                $field->get_name(),
-                                'Y-m-d',
-                                'H:i:s'
-                            );
-                        } else {
-                            $model_data_array[ $column_name ] = $model_object->get($field->get_name());
-                        }
-                    }
-                    $table_data[ $model_name ][] = $model_data_array;
-                }
-            }
-        }
-        return $table_data;
-    }
+	const option_prefix = 'ee_report_job_';
+
+
+	// instance of the EE_Export object
+	private static $_instance = null;
+
+	// instance of the EE_CSV object
+	/**
+	 *
+	 * @var EE_CSV
+	 */
+	public $EE_CSV = null;
+
+
+	private $_req_data = array();
+
+
+	/**
+	 *        private constructor to prevent direct creation
+	 *
+	 * @Constructor
+	 * @access private
+	 * @param array $request_data
+	 */
+	private function __construct($request_data = array())
+	{
+		$this->_req_data = $request_data;
+		$this->today = date("Y-m-d", time());
+		require_once(EE_CLASSES . 'EE_CSV.class.php');
+		$this->EE_CSV = EE_CSV::instance();
+	}
+
+
+	/**
+	 *        @ singleton method used to instantiate class object
+	 *        @ access public
+	 *
+	 * @param array $request_data
+	 * @return \EE_Export
+	 */
+	public static function instance($request_data = array())
+	{
+		// check if class object is instantiated
+		if (self::$_instance === null or ! is_object(self::$_instance) or ! (self::$_instance instanceof EE_Export)) {
+			self::$_instance = new self($request_data);
+		}
+		return self::$_instance;
+	}
+
+
+	/**
+	 * @Export Event Espresso data - routes export requests
+	 * @access public
+	 * @return void | bool
+	 */
+	public function export()
+	{
+		// in case of bulk exports, the "actual" action will be in action2, but first check regular action for "export" keyword
+		if (isset($this->_req_data['action']) && strpos($this->_req_data['action'], 'export') === false) {
+			// check if action2 has export action
+			if (isset($this->_req_data['action2']) && strpos($this->_req_data['action2'], 'export') !== false) {
+				// whoop! there it is!
+				$this->_req_data['action'] = $this->_req_data['action2'];
+			}
+		}
+
+		$this->_req_data['export'] = isset($this->_req_data['export']) ? $this->_req_data['export'] : '';
+
+		switch ($this->_req_data['export']) {
+			case 'report':
+				switch ($this->_req_data['action']) {
+					case "event":
+					case "export_events":
+					case 'all_event_data':
+						$this->export_all_event_data();
+						break;
+
+					case 'registrations_report_for_event':
+						$this->report_registrations_for_event($this->_req_data['EVT_ID']);
+						break;
+
+					case 'attendees':
+						$this->export_attendees();
+						break;
+
+					case 'categories':
+						$this->export_categories();
+						break;
+
+					default:
+						EE_Error::add_error(
+							__('An error occurred! The requested export report could not be found.', 'event_espresso'),
+							__FILE__,
+							__FUNCTION__,
+							__LINE__
+						);
+						return false;
+						break;
+				}
+				break; // end of switch export : report
+			default:
+				break;
+		} // end of switch export
+
+		exit;
+	}
+
+	/**
+	 * Downloads a CSV file with all the columns, but no data. This should be used for importing
+	 *
+	 * @return null kills execution
+	 */
+	public function export_sample()
+	{
+		$event = EEM_Event::instance()->get_one();
+		$this->_req_data['EVT_ID'] = $event->ID();
+		$this->export_all_event_data();
+	}
+
+
+	/**
+	 * @Export data for ALL events
+	 * @access public
+	 * @return void
+	 */
+	public function export_all_event_data()
+	{
+		// are any Event IDs set?
+		$event_query_params = array();
+		$related_models_query_params = array();
+		$related_through_reg_query_params = array();
+		$datetime_ticket_query_params = array();
+		$price_query_params = array();
+		$price_type_query_params = array();
+		$term_query_params = array();
+		$state_country_query_params = array();
+		$question_group_query_params = array();
+		$question_query_params = array();
+		if (isset($this->_req_data['EVT_ID'])) {
+			// do we have an array of IDs ?
+
+			if (is_array($this->_req_data['EVT_ID'])) {
+				$EVT_IDs = array_map('sanitize_text_field', $this->_req_data['EVT_ID']);
+				$value_to_equal = array('IN', $EVT_IDs);
+				$filename = 'events';
+			} else {
+				// generate regular where = clause
+				$EVT_ID = absint($this->_req_data['EVT_ID']);
+				$value_to_equal = $EVT_ID;
+				$event = EE_Registry::instance()->load_model('Event')->get_one_by_ID($EVT_ID);
+
+				$filename = 'event-' . ($event instanceof EE_Event ? $event->slug() : __('unknown', 'event_espresso'));
+			}
+			$event_query_params[0]['EVT_ID'] = $value_to_equal;
+			$related_models_query_params[0]['Event.EVT_ID'] = $value_to_equal;
+			$related_through_reg_query_params[0]['Registration.EVT_ID'] = $value_to_equal;
+			$datetime_ticket_query_params[0]['Datetime.EVT_ID'] = $value_to_equal;
+			$price_query_params[0]['Ticket.Datetime.EVT_ID'] = $value_to_equal;
+			$price_type_query_params[0]['Price.Ticket.Datetime.EVT_ID'] = $value_to_equal;
+			$term_query_params[0]['Term_Taxonomy.Event.EVT_ID'] = $value_to_equal;
+			$state_country_query_params[0]['Venue.Event.EVT_ID'] = $value_to_equal;
+			$question_group_query_params[0]['Event.EVT_ID'] = $value_to_equal;
+			$question_query_params[0]['Question_Group.Event.EVT_ID'] = $value_to_equal;
+		} else {
+			$filename = 'all-events';
+		}
+
+
+		// array in the format:  table name =>  query where clause
+		$models_to_export = array(
+			'Event'                   => $event_query_params,
+			'Datetime'                => $related_models_query_params,
+			'Ticket_Template'         => $price_query_params,
+			'Ticket'                  => $datetime_ticket_query_params,
+			'Datetime_Ticket'         => $datetime_ticket_query_params,
+			'Price_Type'              => $price_type_query_params,
+			'Price'                   => $price_query_params,
+			'Ticket_Price'            => $price_query_params,
+			'Term'                    => $term_query_params,
+			'Term_Taxonomy'           => $related_models_query_params,
+			'Term_Relationship'       => $related_models_query_params, // model has NO primary key...
+			'Country'                 => $state_country_query_params,
+			'State'                   => $state_country_query_params,
+			'Venue'                   => $related_models_query_params,
+			'Event_Venue'             => $related_models_query_params,
+			'Question_Group'          => $question_group_query_params,
+			'Event_Question_Group'    => $question_group_query_params,
+			'Question'                => $question_query_params,
+			'Question_Group_Question' => $question_query_params,
+			// 'Transaction'=>$related_through_reg_query_params,
+			// 'Registration'=>$related_models_query_params,
+			// 'Attendee'=>$related_through_reg_query_params,
+			// 'Line_Item'=>
+
+		);
+
+		$model_data = $this->_get_export_data_for_models($models_to_export);
+
+		$filename = $this->generate_filename($filename);
+
+		if (! $this->EE_CSV->export_multiple_model_data_to_csv($filename, $model_data)) {
+			EE_Error::add_error(
+				__(
+					"'An error occurred and the Event details could not be exported from the database.'",
+					"event_espresso"
+				),
+				__FILE__,
+				__FUNCTION__,
+				__LINE__
+			);
+		}
+	}
+
+	public function report_attendees()
+	{
+		$attendee_rows = EEM_Attendee::instance()->get_all_wpdb_results(
+			array(
+				'force_join' => array('State', 'Country'),
+				'caps'       => EEM_Base::caps_read_admin,
+			)
+		);
+		$csv_data = array();
+		foreach ($attendee_rows as $attendee_row) {
+			$csv_row = array();
+			foreach (EEM_Attendee::instance()->field_settings() as $field_name => $field_obj) {
+				if ($field_name == 'STA_ID') {
+					$state_name_field = EEM_State::instance()->field_settings_for('STA_name');
+					$csv_row[ __('State', 'event_espresso') ] = $attendee_row[ $state_name_field->get_qualified_column(
+					) ];
+				} elseif ($field_name == 'CNT_ISO') {
+					$country_name_field = EEM_Country::instance()->field_settings_for('CNT_name');
+					$csv_row[ __(
+						'Country',
+						'event_espresso'
+					) ] = $attendee_row[ $country_name_field->get_qualified_column() ];
+				} else {
+					$csv_row[ $field_obj->get_nicename() ] = $attendee_row[ $field_obj->get_qualified_column() ];
+				}
+			}
+			$csv_data[] = $csv_row;
+		}
+
+		$filename = $this->generate_filename('contact-list-report');
+
+		$handle = $this->EE_CSV->begin_sending_csv($filename);
+		$this->EE_CSV->write_data_array_to_csv($handle, $csv_data);
+		$this->EE_CSV->end_sending_csv($handle);
+	}
+
+
+	/**
+	 * @Export data for ALL attendees
+	 * @access public
+	 * @return void
+	 */
+	public function export_attendees()
+	{
+
+		$states_that_have_an_attendee = EEM_State::instance()->get_all(
+			array(0 => array('Attendee.ATT_ID' => array('IS NOT NULL')))
+		);
+		$countries_that_have_an_attendee = EEM_Country::instance()->get_all(
+			array(0 => array('Attendee.ATT_ID' => array('IS NOT NULL')))
+		);
+		// $states_to_export_query_params
+		$models_to_export = array(
+			'Country'  => array(array('CNT_ISO' => array('IN', array_keys($countries_that_have_an_attendee)))),
+			'State'    => array(array('STA_ID' => array('IN', array_keys($states_that_have_an_attendee)))),
+			'Attendee' => array(),
+		);
+
+
+		$model_data = $this->_get_export_data_for_models($models_to_export);
+		$filename = $this->generate_filename('all-attendees');
+
+		if (! $this->EE_CSV->export_multiple_model_data_to_csv($filename, $model_data)) {
+			EE_Error::add_error(
+				__(
+					'An error occurred and the Attendee data could not be exported from the database.',
+					'event_espresso'
+				),
+				__FILE__,
+				__FUNCTION__,
+				__LINE__
+			);
+		}
+	}
+
+	/**
+	 * Shortcut for preparing a database result for display
+	 *
+	 * @param EEM_Base       $model
+	 * @param string         $field_name
+	 * @param string         $raw_db_value
+	 * @param boolean|string $pretty_schema true to display pretty, a string to use a specific "Schema", or false to
+	 *                                      NOT display pretty
+	 * @return string
+	 */
+	protected function _prepare_value_from_db_for_display($model, $field_name, $raw_db_value, $pretty_schema = true)
+	{
+		$field_obj = $model->field_settings_for($field_name);
+		$value_on_model_obj = $field_obj->prepare_for_set_from_db($raw_db_value);
+		if ($field_obj instanceof EE_Datetime_Field) {
+			$field_obj->set_date_format(
+				EE_CSV::instance()->get_date_format_for_csv($field_obj->get_date_format($pretty_schema)),
+				$pretty_schema
+			);
+			$field_obj->set_time_format(
+				EE_CSV::instance()->get_time_format_for_csv($field_obj->get_time_format($pretty_schema)),
+				$pretty_schema
+			);
+		}
+		if ($pretty_schema === true) {
+			return $field_obj->prepare_for_pretty_echoing($value_on_model_obj);
+		} elseif (is_string($pretty_schema)) {
+			return $field_obj->prepare_for_pretty_echoing($value_on_model_obj, $pretty_schema);
+		} else {
+			return $field_obj->prepare_for_get($value_on_model_obj);
+		}
+	}
+
+	/**
+	 * Export a custom CSV of registration info including: A bunch of the reg fields, the time of the event, the price
+	 * name, and the questions associated with the registrations
+	 *
+	 * @param int $event_id
+	 */
+	public function report_registrations_for_event($event_id = null)
+	{
+		$reg_fields_to_include = array(
+			'TXN_ID',
+			'ATT_ID',
+			'REG_ID',
+			'REG_date',
+			'REG_code',
+			'REG_count',
+			'REG_final_price',
+
+		);
+		$att_fields_to_include = array(
+			'ATT_fname',
+			'ATT_lname',
+			'ATT_email',
+			'ATT_address',
+			'ATT_address2',
+			'ATT_city',
+			'STA_ID',
+			'CNT_ISO',
+			'ATT_zip',
+			'ATT_phone',
+		);
+
+		$registrations_csv_ready_array = array();
+		$reg_model = EE_Registry::instance()->load_model('Registration');
+		$query_params = apply_filters(
+			'FHEE__EE_Export__report_registration_for_event',
+			array(
+				array(
+					'OR'                 => array(
+						// don't include registrations from failed or abandoned transactions...
+						'Transaction.STS_ID' => array(
+							'NOT IN',
+							array(EEM_Transaction::failed_status_code, EEM_Transaction::abandoned_status_code),
+						),
+						// unless the registration is approved, in which case include it regardless of transaction status
+						'STS_ID'             => EEM_Registration::status_id_approved,
+					),
+					'Ticket.TKT_deleted' => array('IN', array(true, false)),
+				),
+				'order_by'   => array('Transaction.TXN_ID' => 'asc', 'REG_count' => 'asc'),
+				'force_join' => array('Transaction', 'Ticket', 'Attendee'),
+				'caps'       => EEM_Base::caps_read_admin,
+			),
+			$event_id
+		);
+		if ($event_id) {
+			$query_params[0]['EVT_ID'] = $event_id;
+		} else {
+			$query_params['force_join'][] = 'Event';
+		}
+		$registration_rows = $reg_model->get_all_wpdb_results($query_params);
+		// get all questions which relate to someone in this group
+		$registration_ids = array();
+		foreach ($registration_rows as $reg_row) {
+			$registration_ids[] = intval($reg_row['Registration.REG_ID']);
+		}
+		// EEM_Question::instance()->show_next_x_db_queries();
+		$questions_for_these_regs_rows = EEM_Question::instance()->get_all_wpdb_results(
+			array(array('Answer.REG_ID' => array('IN', $registration_ids)))
+		);
+		foreach ($registration_rows as $reg_row) {
+			if (is_array($reg_row)) {
+				$reg_csv_array = array();
+				if (! $event_id) {
+					// get the event's name and Id
+					$reg_csv_array[ __('Event', 'event_espresso') ] = sprintf(
+						__('%1$s (%2$s)', 'event_espresso'),
+						$this->_prepare_value_from_db_for_display(
+							EEM_Event::instance(),
+							'EVT_name',
+							$reg_row['Event_CPT.post_title']
+						),
+						$reg_row['Event_CPT.ID']
+					);
+				}
+				$is_primary_reg = $reg_row['Registration.REG_count'] == '1' ? true : false;
+				/*@var $reg_row EE_Registration */
+				foreach ($reg_fields_to_include as $field_name) {
+					$field = $reg_model->field_settings_for($field_name);
+					if ($field_name == 'REG_final_price') {
+						$value = $this->_prepare_value_from_db_for_display(
+							$reg_model,
+							$field_name,
+							$reg_row['Registration.REG_final_price'],
+							'localized_float'
+						);
+					} elseif ($field_name == 'REG_count') {
+						$value = sprintf(
+							__('%s of %s', 'event_espresso'),
+							$this->_prepare_value_from_db_for_display(
+								$reg_model,
+								'REG_count',
+								$reg_row['Registration.REG_count']
+							),
+							$this->_prepare_value_from_db_for_display(
+								$reg_model,
+								'REG_group_size',
+								$reg_row['Registration.REG_group_size']
+							)
+						);
+					} elseif ($field_name == 'REG_date') {
+						$value = $this->_prepare_value_from_db_for_display(
+							$reg_model,
+							$field_name,
+							$reg_row['Registration.REG_date'],
+							'no_html'
+						);
+					} else {
+						$value = $this->_prepare_value_from_db_for_display(
+							$reg_model,
+							$field_name,
+							$reg_row[ $field->get_qualified_column() ]
+						);
+					}
+					$reg_csv_array[ $this->_get_column_name_for_field($field) ] = $value;
+					if ($field_name == 'REG_final_price') {
+						// add a column named Currency after the final price
+						$reg_csv_array[ __("Currency", "event_espresso") ] = EE_Config::instance()->currency->code;
+					}
+				}
+				// get pretty status
+				$stati = EEM_Status::instance()->localized_status(
+					array(
+						$reg_row['Registration.STS_ID']     => __('unknown', 'event_espresso'),
+						$reg_row['TransactionTable.STS_ID'] => __('unknown', 'event_espresso'),
+					),
+					false,
+					'sentence'
+				);
+				$reg_csv_array[ __(
+					"Registration Status",
+					'event_espresso'
+				) ] = $stati[ $reg_row['Registration.STS_ID'] ];
+				// get pretty trnasaction status
+				$reg_csv_array[ __(
+					"Transaction Status",
+					'event_espresso'
+				) ] = $stati[ $reg_row['TransactionTable.STS_ID'] ];
+				$reg_csv_array[ __('Transaction Amount Due', 'event_espresso') ] = $is_primary_reg
+					? $this->_prepare_value_from_db_for_display(
+						EEM_Transaction::instance(),
+						'TXN_total',
+						$reg_row['TransactionTable.TXN_total'],
+						'localized_float'
+					) : '0.00';
+				$reg_csv_array[ __('Amount Paid', 'event_espresso') ] = $is_primary_reg
+					? $this->_prepare_value_from_db_for_display(
+						EEM_Transaction::instance(),
+						'TXN_paid',
+						$reg_row['TransactionTable.TXN_paid'],
+						'localized_float'
+					) : '0.00';
+				$payment_methods = array();
+				$gateway_txn_ids_etc = array();
+				$payment_times = array();
+				if ($is_primary_reg && $reg_row['TransactionTable.TXN_ID']) {
+					$payments_info = EEM_Payment::instance()->get_all_wpdb_results(
+						array(
+							array(
+								'TXN_ID' => $reg_row['TransactionTable.TXN_ID'],
+								'STS_ID' => EEM_Payment::status_id_approved,
+							),
+							'force_join' => array('Payment_Method'),
+						),
+						ARRAY_A,
+						'Payment_Method.PMD_admin_name as name, Payment.PAY_txn_id_chq_nmbr as gateway_txn_id, Payment.PAY_timestamp as payment_time'
+					);
+
+					foreach ($payments_info as $payment_method_and_gateway_txn_id) {
+						$payment_methods[] = isset($payment_method_and_gateway_txn_id['name'])
+							? $payment_method_and_gateway_txn_id['name'] : __('Unknown', 'event_espresso');
+						$gateway_txn_ids_etc[] = isset($payment_method_and_gateway_txn_id['gateway_txn_id'])
+							? $payment_method_and_gateway_txn_id['gateway_txn_id'] : '';
+						$payment_times[] = isset($payment_method_and_gateway_txn_id['payment_time'])
+							? $payment_method_and_gateway_txn_id['payment_time'] : '';
+					}
+				}
+				$reg_csv_array[ __('Payment Date(s)', 'event_espresso') ] = implode(',', $payment_times);
+				$reg_csv_array[ __('Payment Method(s)', 'event_espresso') ] = implode(",", $payment_methods);
+				$reg_csv_array[ __('Gateway Transaction ID(s)', 'event_espresso') ] = implode(
+					',',
+					$gateway_txn_ids_etc
+				);
+
+				// get whether or not the user has checked in
+				$reg_csv_array[ __("Check-Ins", "event_espresso") ] = $reg_model->count_related(
+					$reg_row['Registration.REG_ID'],
+					'Checkin'
+				);
+				// get ticket of registration and its price
+				$ticket_model = EE_Registry::instance()->load_model('Ticket');
+				if ($reg_row['Ticket.TKT_ID']) {
+					$ticket_name = $this->_prepare_value_from_db_for_display(
+						$ticket_model,
+						'TKT_name',
+						$reg_row['Ticket.TKT_name']
+					);
+					$datetimes_strings = array();
+					foreach (EEM_Datetime::instance()->get_all_wpdb_results(
+						array(
+							array('Ticket.TKT_ID' => $reg_row['Ticket.TKT_ID']),
+							'order_by'                 => array('DTT_EVT_start' => 'ASC'),
+							'default_where_conditions' => 'none',
+						)
+					) as $datetime) {
+						$datetimes_strings[] = $this->_prepare_value_from_db_for_display(
+							EEM_Datetime::instance(),
+							'DTT_EVT_start',
+							$datetime['Datetime.DTT_EVT_start']
+						);
+					}
+				} else {
+					$ticket_name = __('Unknown', 'event_espresso');
+					$datetimes_strings = array(__('Unknown', 'event_espresso'));
+				}
+				$reg_csv_array[ $ticket_model->field_settings_for('TKT_name')->get_nicename() ] = $ticket_name;
+				$reg_csv_array[ __("Datetimes of Ticket", "event_espresso") ] = implode(", ", $datetimes_strings);
+				// get datetime(s) of registration
+
+				// add attendee columns
+				foreach ($att_fields_to_include as $att_field_name) {
+					$field_obj = EEM_Attendee::instance()->field_settings_for($att_field_name);
+					if ($reg_row['Attendee_CPT.ID']) {
+						if ($att_field_name == 'STA_ID') {
+							$value = EEM_State::instance()->get_var(
+								array(array('STA_ID' => $reg_row['Attendee_Meta.STA_ID'])),
+								'STA_name'
+							);
+						} elseif ($att_field_name == 'CNT_ISO') {
+							$value = EEM_Country::instance()->get_var(
+								array(array('CNT_ISO' => $reg_row['Attendee_Meta.CNT_ISO'])),
+								'CNT_name'
+							);
+						} else {
+							$value = $this->_prepare_value_from_db_for_display(
+								EEM_Attendee::instance(),
+								$att_field_name,
+								$reg_row[ $field_obj->get_qualified_column() ]
+							);
+						}
+					} else {
+						$value = '';
+					}
+
+					$reg_csv_array[ $this->_get_column_name_for_field($field_obj) ] = $value;
+				}
+
+				// make sure each registration has the same questions in the same order
+				foreach ($questions_for_these_regs_rows as $question_row) {
+					if (! isset($reg_csv_array[ $question_row['Question.QST_admin_label'] ])) {
+						$reg_csv_array[ $question_row['Question.QST_admin_label'] ] = null;
+					}
+				}
+				// now fill out the questions THEY answered
+				foreach (EEM_Answer::instance()->get_all_wpdb_results(
+					array(array('REG_ID' => $reg_row['Registration.REG_ID']), 'force_join' => array('Question'))
+				) as $answer_row) {
+					/* @var $answer EE_Answer */
+					if ($answer_row['Question.QST_ID']) {
+						$question_label = $this->_prepare_value_from_db_for_display(
+							EEM_Question::instance(),
+							'QST_admin_label',
+							$answer_row['Question.QST_admin_label']
+						);
+					} else {
+						$question_label = sprintf(__('Question $s', 'event_espresso'), $answer_row['Answer.QST_ID']);
+					}
+					if (isset($answer_row['Question.QST_type']) && $answer_row['Question.QST_type'] == EEM_Question::QST_type_state) {
+						$reg_csv_array[ $question_label ] = EEM_State::instance()->get_state_name_by_ID(
+							$answer_row['Answer.ANS_value']
+						);
+					} else {
+						$reg_csv_array[ $question_label ] = $this->_prepare_value_from_db_for_display(
+							EEM_Answer::instance(),
+							'ANS_value',
+							$answer_row['Answer.ANS_value']
+						);
+					}
+				}
+				$registrations_csv_ready_array[] = apply_filters(
+					'FHEE__EE_Export__report_registrations__reg_csv_array',
+					$reg_csv_array,
+					$reg_row
+				);
+			}
+		}
+
+		// if we couldn't export anything, we want to at least show the column headers
+		if (empty($registrations_csv_ready_array)) {
+			$reg_csv_array = array();
+			$model_and_fields_to_include = array(
+				'Registration' => $reg_fields_to_include,
+				'Attendee'     => $att_fields_to_include,
+			);
+			foreach ($model_and_fields_to_include as $model_name => $field_list) {
+				$model = EE_Registry::instance()->load_model($model_name);
+				foreach ($field_list as $field_name) {
+					$field = $model->field_settings_for($field_name);
+					$reg_csv_array[ $this->_get_column_name_for_field(
+						$field
+					) ] = null;// $registration->get($field->get_name());
+				}
+			}
+			$registrations_csv_ready_array [] = $reg_csv_array;
+		}
+		if ($event_id) {
+			$event_slug = EEM_Event::instance()->get_var(array(array('EVT_ID' => $event_id)), 'EVT_slug');
+			if (! $event_slug) {
+				$event_slug = __('unknown', 'event_espresso');
+			}
+		} else {
+			$event_slug = __('all', 'event_espresso');
+		}
+		$filename = sprintf("registrations-for-%s", $event_slug);
+
+		$handle = $this->EE_CSV->begin_sending_csv($filename);
+		$this->EE_CSV->write_data_array_to_csv($handle, $registrations_csv_ready_array);
+		$this->EE_CSV->end_sending_csv($handle);
+	}
+
+	/**
+	 * Gets the 'normal' column named for fields
+	 *
+	 * @param EE_Model_Field_Base $field
+	 * @return string
+	 */
+	protected function _get_column_name_for_field(EE_Model_Field_Base $field)
+	{
+		return $field->get_nicename() . "[" . $field->get_name() . "]";
+	}
+
+
+	/**
+	 * @Export data for ALL events
+	 * @access public
+	 * @return void
+	 */
+	public function export_categories()
+	{
+		// are any Event IDs set?
+		$query_params = array();
+		if (isset($this->_req_data['EVT_CAT_ID'])) {
+			// do we have an array of IDs ?
+			if (is_array($this->_req_data['EVT_CAT_ID'])) {
+				// generate an "IN (CSV)" where clause
+				$EVT_CAT_IDs = array_map('sanitize_text_field', $this->_req_data['EVT_CAT_ID']);
+				$filename = 'event-categories';
+				$query_params[0]['term_taxonomy_id'] = array('IN', $EVT_CAT_IDs);
+			} else {
+				// generate regular where = clause
+				$EVT_CAT_ID = absint($this->_req_data['EVT_CAT_ID']);
+				$filename = 'event-category#' . $EVT_CAT_ID;
+				$query_params[0]['term_taxonomy_id'] = $EVT_CAT_ID;
+			}
+		} else {
+			// no IDs means we will d/l the entire table
+			$filename = 'all-categories';
+		}
+
+		$tables_to_export = array(
+			'Term_Taxonomy' => $query_params,
+		);
+
+		$table_data = $this->_get_export_data_for_models($tables_to_export);
+		$filename = $this->generate_filename($filename);
+
+		if (! $this->EE_CSV->export_multiple_model_data_to_csv($filename, $table_data)) {
+			EE_Error::add_error(
+				__(
+					'An error occurred and the Category details could not be exported from the database.',
+					'event_espresso'
+				),
+				__FILE__,
+				__FUNCTION__,
+				__LINE__
+			);
+		}
+	}
+
+
+	/**
+	 * @process export name to create a suitable filename
+	 * @access  private
+	 * @param string - export_name
+	 * @return string on success, FALSE on fail
+	 */
+	private function generate_filename($export_name = '')
+	{
+		if ($export_name != '') {
+			$filename = get_bloginfo('name') . '-' . $export_name;
+			$filename = sanitize_key($filename) . '-' . $this->today;
+			return $filename;
+		} else {
+			EE_Error::add_error(__("No filename was provided", "event_espresso"), __FILE__, __FUNCTION__, __LINE__);
+		}
+		return false;
+	}
+
+
+	/**
+	 * @recursive function for exporting table data and merging the results with the next results
+	 * @access    private
+	 * @param array $models_to_export keys are model names (eg 'Event', 'Attendee', etc.) and values are arrays of
+	 *                                query params like on EEM_Base::get_all
+	 * @return array on success, FALSE on fail
+	 */
+	private function _get_export_data_for_models($models_to_export = array())
+	{
+		$table_data = false;
+		if (is_array($models_to_export)) {
+			foreach ($models_to_export as $model_name => $query_params) {
+				// check for a numerically-indexed array. in that case, $model_name is the value!!
+				if (is_int($model_name)) {
+					$model_name = $query_params;
+					$query_params = array();
+				}
+				$model = EE_Registry::instance()->load_model($model_name);
+				$model_objects = $model->get_all($query_params);
+
+				$table_data[ $model_name ] = array();
+				foreach ($model_objects as $model_object) {
+					$model_data_array = array();
+					$fields = $model->field_settings();
+					foreach ($fields as $field) {
+						$column_name = $field->get_nicename() . "[" . $field->get_name() . "]";
+						if ($field instanceof EE_Datetime_Field) {
+							// $field->set_date_format('Y-m-d');
+							// $field->set_time_format('H:i:s');
+							$model_data_array[ $column_name ] = $model_object->get_datetime(
+								$field->get_name(),
+								'Y-m-d',
+								'H:i:s'
+							);
+						} else {
+							$model_data_array[ $column_name ] = $model_object->get($field->get_name());
+						}
+					}
+					$table_data[ $model_name ][] = $model_data_array;
+				}
+			}
+		}
+		return $table_data;
+	}
 }

Spacing +45 added lines, -45 removed lines

@@ -44,7 +44,7 @@ 
     {
         $this->_req_data = $request_data;
         $this->today = date("Y-m-d", time());
-        require_once(EE_CLASSES . 'EE_CSV.class.php');
+        require_once(EE_CLASSES.'EE_CSV.class.php');
         $this->EE_CSV = EE_CSV::instance();
     }
 
@@ -167,7 +167,7 @@ 
                 $value_to_equal = $EVT_ID;
                 $event = EE_Registry::instance()->load_model('Event')->get_one_by_ID($EVT_ID);
 
-                $filename = 'event-' . ($event instanceof EE_Event ? $event->slug() : __('unknown', 'event_espresso'));
+                $filename = 'event-'.($event instanceof EE_Event ? $event->slug() : __('unknown', 'event_espresso'));
             }
             $event_query_params[0]['EVT_ID'] = $value_to_equal;
             $related_models_query_params[0]['Event.EVT_ID'] = $value_to_equal;
@@ -216,7 +216,7 @@ 
 
         $filename = $this->generate_filename($filename);
 
-        if (! $this->EE_CSV->export_multiple_model_data_to_csv($filename, $model_data)) {
+        if ( ! $this->EE_CSV->export_multiple_model_data_to_csv($filename, $model_data)) {
             EE_Error::add_error(
                 __(
                     "'An error occurred and the Event details could not be exported from the database.'",
@@ -243,16 +243,16 @@ 
             foreach (EEM_Attendee::instance()->field_settings() as $field_name => $field_obj) {
                 if ($field_name == 'STA_ID') {
                     $state_name_field = EEM_State::instance()->field_settings_for('STA_name');
-                    $csv_row[ __('State', 'event_espresso') ] = $attendee_row[ $state_name_field->get_qualified_column(
-                    ) ];
+                    $csv_row[__('State', 'event_espresso')] = $attendee_row[$state_name_field->get_qualified_column(
+                    )];
                 } elseif ($field_name == 'CNT_ISO') {
                     $country_name_field = EEM_Country::instance()->field_settings_for('CNT_name');
-                    $csv_row[ __(
+                    $csv_row[__(
                         'Country',
                         'event_espresso'
-                    ) ] = $attendee_row[ $country_name_field->get_qualified_column() ];
+                    )] = $attendee_row[$country_name_field->get_qualified_column()];
                 } else {
-                    $csv_row[ $field_obj->get_nicename() ] = $attendee_row[ $field_obj->get_qualified_column() ];
+                    $csv_row[$field_obj->get_nicename()] = $attendee_row[$field_obj->get_qualified_column()];
                 }
             }
             $csv_data[] = $csv_row;
@@ -291,7 +291,7 @@ 
         $model_data = $this->_get_export_data_for_models($models_to_export);
         $filename = $this->generate_filename('all-attendees');
 
-        if (! $this->EE_CSV->export_multiple_model_data_to_csv($filename, $model_data)) {
+        if ( ! $this->EE_CSV->export_multiple_model_data_to_csv($filename, $model_data)) {
             EE_Error::add_error(
                 __(
                     'An error occurred and the Attendee data could not be exported from the database.',
@@ -409,9 +409,9 @@ 
         foreach ($registration_rows as $reg_row) {
             if (is_array($reg_row)) {
                 $reg_csv_array = array();
-                if (! $event_id) {
+                if ( ! $event_id) {
                     // get the event's name and Id
-                    $reg_csv_array[ __('Event', 'event_espresso') ] = sprintf(
+                    $reg_csv_array[__('Event', 'event_espresso')] = sprintf(
                         __('%1$s (%2$s)', 'event_espresso'),
                         $this->_prepare_value_from_db_for_display(
                             EEM_Event::instance(),
@@ -457,13 +457,13 @@ 
                         $value = $this->_prepare_value_from_db_for_display(
                             $reg_model,
                             $field_name,
-                            $reg_row[ $field->get_qualified_column() ]
+                            $reg_row[$field->get_qualified_column()]
                         );
                     }
-                    $reg_csv_array[ $this->_get_column_name_for_field($field) ] = $value;
+                    $reg_csv_array[$this->_get_column_name_for_field($field)] = $value;
                     if ($field_name == 'REG_final_price') {
                         // add a column named Currency after the final price
-                        $reg_csv_array[ __("Currency", "event_espresso") ] = EE_Config::instance()->currency->code;
+                        $reg_csv_array[__("Currency", "event_espresso")] = EE_Config::instance()->currency->code;
                     }
                 }
                 // get pretty status
@@ -475,23 +475,23 @@ 
                     false,
                     'sentence'
                 );
-                $reg_csv_array[ __(
+                $reg_csv_array[__(
                     "Registration Status",
                     'event_espresso'
-                ) ] = $stati[ $reg_row['Registration.STS_ID'] ];
+                )] = $stati[$reg_row['Registration.STS_ID']];
                 // get pretty trnasaction status
-                $reg_csv_array[ __(
+                $reg_csv_array[__(
                     "Transaction Status",
                     'event_espresso'
-                ) ] = $stati[ $reg_row['TransactionTable.STS_ID'] ];
-                $reg_csv_array[ __('Transaction Amount Due', 'event_espresso') ] = $is_primary_reg
+                )] = $stati[$reg_row['TransactionTable.STS_ID']];
+                $reg_csv_array[__('Transaction Amount Due', 'event_espresso')] = $is_primary_reg
                     ? $this->_prepare_value_from_db_for_display(
                         EEM_Transaction::instance(),
                         'TXN_total',
                         $reg_row['TransactionTable.TXN_total'],
                         'localized_float'
                     ) : '0.00';
-                $reg_csv_array[ __('Amount Paid', 'event_espresso') ] = $is_primary_reg
+                $reg_csv_array[__('Amount Paid', 'event_espresso')] = $is_primary_reg
                     ? $this->_prepare_value_from_db_for_display(
                         EEM_Transaction::instance(),
                         'TXN_paid',
@@ -523,15 +523,15 @@ 
                             ? $payment_method_and_gateway_txn_id['payment_time'] : '';
                     }
                 }
-                $reg_csv_array[ __('Payment Date(s)', 'event_espresso') ] = implode(',', $payment_times);
-                $reg_csv_array[ __('Payment Method(s)', 'event_espresso') ] = implode(",", $payment_methods);
-                $reg_csv_array[ __('Gateway Transaction ID(s)', 'event_espresso') ] = implode(
+                $reg_csv_array[__('Payment Date(s)', 'event_espresso')] = implode(',', $payment_times);
+                $reg_csv_array[__('Payment Method(s)', 'event_espresso')] = implode(",", $payment_methods);
+                $reg_csv_array[__('Gateway Transaction ID(s)', 'event_espresso')] = implode(
                     ',',
                     $gateway_txn_ids_etc
                 );
 
                 // get whether or not the user has checked in
-                $reg_csv_array[ __("Check-Ins", "event_espresso") ] = $reg_model->count_related(
+                $reg_csv_array[__("Check-Ins", "event_espresso")] = $reg_model->count_related(
                     $reg_row['Registration.REG_ID'],
                     'Checkin'
                 );
@@ -561,8 +561,8 @@ 
                     $ticket_name = __('Unknown', 'event_espresso');
                     $datetimes_strings = array(__('Unknown', 'event_espresso'));
                 }
-                $reg_csv_array[ $ticket_model->field_settings_for('TKT_name')->get_nicename() ] = $ticket_name;
-                $reg_csv_array[ __("Datetimes of Ticket", "event_espresso") ] = implode(", ", $datetimes_strings);
+                $reg_csv_array[$ticket_model->field_settings_for('TKT_name')->get_nicename()] = $ticket_name;
+                $reg_csv_array[__("Datetimes of Ticket", "event_espresso")] = implode(", ", $datetimes_strings);
                 // get datetime(s) of registration
 
                 // add attendee columns
@@ -583,20 +583,20 @@ 
                             $value = $this->_prepare_value_from_db_for_display(
                                 EEM_Attendee::instance(),
                                 $att_field_name,
-                                $reg_row[ $field_obj->get_qualified_column() ]
+                                $reg_row[$field_obj->get_qualified_column()]
                             );
                         }
                     } else {
                         $value = '';
                     }
 
-                    $reg_csv_array[ $this->_get_column_name_for_field($field_obj) ] = $value;
+                    $reg_csv_array[$this->_get_column_name_for_field($field_obj)] = $value;
                 }
 
                 // make sure each registration has the same questions in the same order
                 foreach ($questions_for_these_regs_rows as $question_row) {
-                    if (! isset($reg_csv_array[ $question_row['Question.QST_admin_label'] ])) {
-                        $reg_csv_array[ $question_row['Question.QST_admin_label'] ] = null;
+                    if ( ! isset($reg_csv_array[$question_row['Question.QST_admin_label']])) {
+                        $reg_csv_array[$question_row['Question.QST_admin_label']] = null;
                     }
                 }
                 // now fill out the questions THEY answered
@@ -614,11 +614,11 @@ 
                         $question_label = sprintf(__('Question $s', 'event_espresso'), $answer_row['Answer.QST_ID']);
                     }
                     if (isset($answer_row['Question.QST_type']) && $answer_row['Question.QST_type'] == EEM_Question::QST_type_state) {
-                        $reg_csv_array[ $question_label ] = EEM_State::instance()->get_state_name_by_ID(
+                        $reg_csv_array[$question_label] = EEM_State::instance()->get_state_name_by_ID(
                             $answer_row['Answer.ANS_value']
                         );
                     } else {
-                        $reg_csv_array[ $question_label ] = $this->_prepare_value_from_db_for_display(
+                        $reg_csv_array[$question_label] = $this->_prepare_value_from_db_for_display(
                             EEM_Answer::instance(),
                             'ANS_value',
                             $answer_row['Answer.ANS_value']
@@ -644,16 +644,16 @@ 
                 $model = EE_Registry::instance()->load_model($model_name);
                 foreach ($field_list as $field_name) {
                     $field = $model->field_settings_for($field_name);
-                    $reg_csv_array[ $this->_get_column_name_for_field(
+                    $reg_csv_array[$this->_get_column_name_for_field(
                         $field
-                    ) ] = null;// $registration->get($field->get_name());
+                    )] = null; // $registration->get($field->get_name());
                 }
             }
             $registrations_csv_ready_array [] = $reg_csv_array;
         }
         if ($event_id) {
             $event_slug = EEM_Event::instance()->get_var(array(array('EVT_ID' => $event_id)), 'EVT_slug');
-            if (! $event_slug) {
+            if ( ! $event_slug) {
                 $event_slug = __('unknown', 'event_espresso');
             }
         } else {
@@ -674,7 +674,7 @@ 
      */
     protected function _get_column_name_for_field(EE_Model_Field_Base $field)
     {
-        return $field->get_nicename() . "[" . $field->get_name() . "]";
+        return $field->get_nicename()."[".$field->get_name()."]";
     }
 
 
@@ -697,7 +697,7 @@ 
             } else {
                 // generate regular where = clause
                 $EVT_CAT_ID = absint($this->_req_data['EVT_CAT_ID']);
-                $filename = 'event-category#' . $EVT_CAT_ID;
+                $filename = 'event-category#'.$EVT_CAT_ID;
                 $query_params[0]['term_taxonomy_id'] = $EVT_CAT_ID;
             }
         } else {
@@ -712,7 +712,7 @@ 
         $table_data = $this->_get_export_data_for_models($tables_to_export);
         $filename = $this->generate_filename($filename);
 
-        if (! $this->EE_CSV->export_multiple_model_data_to_csv($filename, $table_data)) {
+        if ( ! $this->EE_CSV->export_multiple_model_data_to_csv($filename, $table_data)) {
             EE_Error::add_error(
                 __(
                     'An error occurred and the Category details could not be exported from the database.',
@@ -735,8 +735,8 @@ 
     private function generate_filename($export_name = '')
     {
         if ($export_name != '') {
-            $filename = get_bloginfo('name') . '-' . $export_name;
-            $filename = sanitize_key($filename) . '-' . $this->today;
+            $filename = get_bloginfo('name').'-'.$export_name;
+            $filename = sanitize_key($filename).'-'.$this->today;
             return $filename;
         } else {
             EE_Error::add_error(__("No filename was provided", "event_espresso"), __FILE__, __FUNCTION__, __LINE__);
@@ -765,25 +765,25 @@ 
                 $model = EE_Registry::instance()->load_model($model_name);
                 $model_objects = $model->get_all($query_params);
 
-                $table_data[ $model_name ] = array();
+                $table_data[$model_name] = array();
                 foreach ($model_objects as $model_object) {
                     $model_data_array = array();
                     $fields = $model->field_settings();
                     foreach ($fields as $field) {
-                        $column_name = $field->get_nicename() . "[" . $field->get_name() . "]";
+                        $column_name = $field->get_nicename()."[".$field->get_name()."]";
                         if ($field instanceof EE_Datetime_Field) {
                             // $field->set_date_format('Y-m-d');
                             // $field->set_time_format('H:i:s');
-                            $model_data_array[ $column_name ] = $model_object->get_datetime(
+                            $model_data_array[$column_name] = $model_object->get_datetime(
                                 $field->get_name(),
                                 'Y-m-d',
                                 'H:i:s'
                             );
                         } else {
-                            $model_data_array[ $column_name ] = $model_object->get($field->get_name());
+                            $model_data_array[$column_name] = $model_object->get($field->get_name());
                         }
                     }
-                    $table_data[ $model_name ][] = $model_data_array;
+                    $table_data[$model_name][] = $model_data_array;
                 }
             }
         }

core/db_classes/EE_Answer.class.php

Indentation +138 added lines, -138 removed lines

@@ -10,144 +10,144 @@
 class EE_Answer extends EE_Base_Class
 {
 
-    /**
-     *
-     * @param array $props_n_values
-     * @return EE_Answer
-     */
-    public static function new_instance($props_n_values = array())
-    {
-        $has_object = parent::_check_for_object($props_n_values, __CLASS__);
-        return $has_object ? $has_object : new self($props_n_values);
-    }
-
-
-    /**
-     *
-     * @param array $props_n_values
-     * @return EE_Answer
-     */
-    public static function new_instance_from_db($props_n_values = array())
-    {
-        return new self($props_n_values, true);
-    }
-
-
-    /**
-     *    Set Question ID
-     *
-     * @access        public
-     * @param int $QST_ID
-     */
-    public function set_question($QST_ID = 0)
-    {
-        $this->set('QST_ID', $QST_ID);
-    }
-
-
-    /**
-     *    Set Registration ID
-     *
-     * @access        public
-     * @param int $REG_ID
-     */
-    public function set_registration($REG_ID = 0)
-    {
-        $this->set('REG_ID', $REG_ID);
-    }
-
-
-    /**
-     *    Set Answer value
-     *
-     * @access        public
-     * @param mixed $ANS_value
-     */
-    public function set_value($ANS_value = '')
-    {
-        $this->set('ANS_value', $ANS_value);
-    }
-
-
-    /**
-     *    get Attendee First Name
-     *
-     * @access        public
-     * @return        int
-     */
-    public function registration_ID()
-    {
-        return $this->get('REG_ID');
-    }
-
-
-    /**
-     *    get Attendee Last Name
-     *
-     * @access        public
-     * @return        int
-     */
-    public function question_ID()
-    {
-        return $this->get('QST_ID');
-    }
-
-
-    /**
-     *    get Attendee Address
-     *
-     * @access        public
-     * @return        string
-     */
-    public function value()
-    {
-        return $this->get('ANS_value');
-    }
-
-
-    /**
-     * Gets a pretty form of the value (mostly applies to answers that have multiple answers)
-     *
-     * @param null $schema
-     * @return string
-     */
-    public function pretty_value($schema = null)
-    {
-        return $this->get_pretty('ANS_value', $schema);
-    }
-
-
-    /**
-     * Echoes out a pretty value (even for multi-choice options)
-     *
-     * @param string $schema
-     */
-    public function e_value($schema = null)
-    {
-        $this->e('ANS_value', $schema);
-    }
-
-
-    /**
-     * Gets the related EE_Question to this EE_Answer
-     *
-     * @return EE_Question
-     */
-    public function question()
-    {
-        return $this->get_first_related('Question');
-    }
-
-
-    /**
-     * Gets the related EE_Registration to this EE_Answer
-     *
-     * @return EE_Registration
-     */
-    public function registration()
-    {
-        return $this->get_first_related('Registration');
-    }
+	/**
+	 *
+	 * @param array $props_n_values
+	 * @return EE_Answer
+	 */
+	public static function new_instance($props_n_values = array())
+	{
+		$has_object = parent::_check_for_object($props_n_values, __CLASS__);
+		return $has_object ? $has_object : new self($props_n_values);
+	}
+
+
+	/**
+	 *
+	 * @param array $props_n_values
+	 * @return EE_Answer
+	 */
+	public static function new_instance_from_db($props_n_values = array())
+	{
+		return new self($props_n_values, true);
+	}
+
+
+	/**
+	 *    Set Question ID
+	 *
+	 * @access        public
+	 * @param int $QST_ID
+	 */
+	public function set_question($QST_ID = 0)
+	{
+		$this->set('QST_ID', $QST_ID);
+	}
+
+
+	/**
+	 *    Set Registration ID
+	 *
+	 * @access        public
+	 * @param int $REG_ID
+	 */
+	public function set_registration($REG_ID = 0)
+	{
+		$this->set('REG_ID', $REG_ID);
+	}
+
+
+	/**
+	 *    Set Answer value
+	 *
+	 * @access        public
+	 * @param mixed $ANS_value
+	 */
+	public function set_value($ANS_value = '')
+	{
+		$this->set('ANS_value', $ANS_value);
+	}
+
+
+	/**
+	 *    get Attendee First Name
+	 *
+	 * @access        public
+	 * @return        int
+	 */
+	public function registration_ID()
+	{
+		return $this->get('REG_ID');
+	}
+
+
+	/**
+	 *    get Attendee Last Name
+	 *
+	 * @access        public
+	 * @return        int
+	 */
+	public function question_ID()
+	{
+		return $this->get('QST_ID');
+	}
+
+
+	/**
+	 *    get Attendee Address
+	 *
+	 * @access        public
+	 * @return        string
+	 */
+	public function value()
+	{
+		return $this->get('ANS_value');
+	}
+
+
+	/**
+	 * Gets a pretty form of the value (mostly applies to answers that have multiple answers)
+	 *
+	 * @param null $schema
+	 * @return string
+	 */
+	public function pretty_value($schema = null)
+	{
+		return $this->get_pretty('ANS_value', $schema);
+	}
+
+
+	/**
+	 * Echoes out a pretty value (even for multi-choice options)
+	 *
+	 * @param string $schema
+	 */
+	public function e_value($schema = null)
+	{
+		$this->e('ANS_value', $schema);
+	}
+
+
+	/**
+	 * Gets the related EE_Question to this EE_Answer
+	 *
+	 * @return EE_Question
+	 */
+	public function question()
+	{
+		return $this->get_first_related('Question');
+	}
+
+
+	/**
+	 * Gets the related EE_Registration to this EE_Answer
+	 *
+	 * @return EE_Registration
+	 */
+	public function registration()
+	{
+		return $this->get_first_related('Registration');
+	}
 }
 
 /* End of file EE_Answer.class.php */

core/db_classes/EE_Country.class.php

Indentation +119 added lines, -119 removed lines

@@ -10,123 +10,123 @@
 class EE_Country extends EE_Base_Class
 {
 
-    /**
-     * @param array $props_n_values
-     * @return EE_Country|mixed
-     */
-    public static function new_instance($props_n_values = array())
-    {
-        $has_object = parent::_check_for_object($props_n_values, __CLASS__);
-        return $has_object ? $has_object : new self($props_n_values);
-    }
-
-
-    /**
-     * @param array $props_n_values
-     * @return EE_Country
-     */
-    public static function new_instance_from_db($props_n_values = array())
-    {
-        return new self($props_n_values, true);
-    }
-
-
-    /**
-     * Gets the country name
-     *
-     * @return string
-     */
-    public function name()
-    {
-        return $this->get('CNT_name');
-    }
-
-
-    /**
-     * gets the country's currency code
-     *
-     * @return string
-     */
-    public function currency_code()
-    {
-        return $this->get('CNT_cur_code');
-    }
-
-
-    /**
-     * gets the country's currency sign/symbol
-     *
-     * @return string
-     */
-    public function currency_sign()
-    {
-        $CNT_cur_sign = $this->get('CNT_cur_sign');
-        return $CNT_cur_sign ? $CNT_cur_sign : '';
-    }
-
-
-    /**
-     * Currency name singular
-     *
-     * @return string
-     */
-    public function currency_name_single()
-    {
-        return $this->get('CNT_cur_single');
-    }
-
-
-    /**
-     * Currency name plural
-     *
-     * @return string
-     */
-    public function currency_name_plural()
-    {
-        return $this->get('CNT_cur_plural');
-    }
-
-
-    /**
-     * currency_sign_before - ie: $TRUE  or  FALSE$
-     *
-     * @return boolean
-     */
-    public function currency_sign_before()
-    {
-        return $this->get('CNT_cur_sign_b4');
-    }
-
-
-    /**
-     * currency_decimal_places : 2 = 0.00   3 = 0.000
-     *
-     * @return integer
-     */
-    public function currency_decimal_places()
-    {
-        return $this->get('CNT_cur_dec_plc');
-    }
-
-
-    /**
-     * currency_decimal_mark :   (comma) ',' = 0,01   or   (decimal) '.' = 0.01
-     *
-     * @return string
-     */
-    public function currency_decimal_mark()
-    {
-        return $this->get('CNT_cur_dec_mrk');
-    }
-
-
-    /**
-     * currency thousands separator:   (comma) ',' = 1,000   or   (decimal) '.' = 1.000
-     *
-     * @return string
-     */
-    public function currency_thousands_separator()
-    {
-        return $this->get('CNT_cur_thsnds');
-    }
+	/**
+	 * @param array $props_n_values
+	 * @return EE_Country|mixed
+	 */
+	public static function new_instance($props_n_values = array())
+	{
+		$has_object = parent::_check_for_object($props_n_values, __CLASS__);
+		return $has_object ? $has_object : new self($props_n_values);
+	}
+
+
+	/**
+	 * @param array $props_n_values
+	 * @return EE_Country
+	 */
+	public static function new_instance_from_db($props_n_values = array())
+	{
+		return new self($props_n_values, true);
+	}
+
+
+	/**
+	 * Gets the country name
+	 *
+	 * @return string
+	 */
+	public function name()
+	{
+		return $this->get('CNT_name');
+	}
+
+
+	/**
+	 * gets the country's currency code
+	 *
+	 * @return string
+	 */
+	public function currency_code()
+	{
+		return $this->get('CNT_cur_code');
+	}
+
+
+	/**
+	 * gets the country's currency sign/symbol
+	 *
+	 * @return string
+	 */
+	public function currency_sign()
+	{
+		$CNT_cur_sign = $this->get('CNT_cur_sign');
+		return $CNT_cur_sign ? $CNT_cur_sign : '';
+	}
+
+
+	/**
+	 * Currency name singular
+	 *
+	 * @return string
+	 */
+	public function currency_name_single()
+	{
+		return $this->get('CNT_cur_single');
+	}
+
+
+	/**
+	 * Currency name plural
+	 *
+	 * @return string
+	 */
+	public function currency_name_plural()
+	{
+		return $this->get('CNT_cur_plural');
+	}
+
+
+	/**
+	 * currency_sign_before - ie: $TRUE  or  FALSE$
+	 *
+	 * @return boolean
+	 */
+	public function currency_sign_before()
+	{
+		return $this->get('CNT_cur_sign_b4');
+	}
+
+
+	/**
+	 * currency_decimal_places : 2 = 0.00   3 = 0.000
+	 *
+	 * @return integer
+	 */
+	public function currency_decimal_places()
+	{
+		return $this->get('CNT_cur_dec_plc');
+	}
+
+
+	/**
+	 * currency_decimal_mark :   (comma) ',' = 0,01   or   (decimal) '.' = 0.01
+	 *
+	 * @return string
+	 */
+	public function currency_decimal_mark()
+	{
+		return $this->get('CNT_cur_dec_mrk');
+	}
+
+
+	/**
+	 * currency thousands separator:   (comma) ',' = 1,000   or   (decimal) '.' = 1.000
+	 *
+	 * @return string
+	 */
+	public function currency_thousands_separator()
+	{
+		return $this->get('CNT_cur_thsnds');
+	}
 }

core/db_classes/EE_Message.class.php

Indentation +867 added lines, -867 removed lines

@@ -10,875 +10,875 @@
 class EE_Message extends EE_Base_Class implements EEI_Admin_Links
 {
 
-    /**
-     * @deprecated 4.9.0  Added for backward compat with add-on's
-     * @type null
-     */
-    public $template_pack;
-
-    /**
-     * @deprecated 4.9.0 Added for backward compat with add-on's
-     * @type null
-     */
-    public $template_variation;
-
-    /**
-     * @deprecated 4.9.0 Added for backward compat with add-on's
-     * @type string
-     */
-    public $content = '';
-
-
-    /**
-     * @type EE_messenger $_messenger
-     */
-    protected $_messenger = null;
-
-    /**
-     * @type EE_message_type $_message_type
-     */
-    protected $_message_type = null;
-
-
-    /**
-     * @param array  $props_n_values
-     * @param string $timezone
-     * @param array  $date_formats incoming date formats in an array.  First value is the date_format, second is time
-     *                             format.
-     * @return EE_Message
-     */
-    public static function new_instance($props_n_values = array(), $timezone = null, $date_formats = array())
-    {
-        $has_object = parent::_check_for_object($props_n_values, __CLASS__);
-        // if object doesn't exist, let's generate a unique token on instantiation so that its available even before saving to db.
-        if (! $has_object) {
-            EE_Registry::instance()->load_helper('URL');
-            $props_n_values['MSG_token'] = EEH_URL::generate_unique_token();
-        }
-        return $has_object ? $has_object : new self($props_n_values, false, $timezone, $date_formats);
-    }
-
-
-    /**
-     * @param array  $props_n_values
-     * @param string $timezone
-     * @return EE_Message
-     */
-    public static function new_instance_from_db($props_n_values = array(), $timezone = null)
-    {
-        return new self($props_n_values, true, $timezone);
-    }
-
-
-    /**
-     * Gets MSG_token
-     *
-     * @return int
-     */
-    public function MSG_token()
-    {
-        return $this->get('MSG_token');
-    }
-
-
-    /**
-     * Sets MSG_token
-     *
-     * @param int $MSG_token
-     */
-    public function set_MSG_token($MSG_token)
-    {
-        $this->set('MSG_token', $MSG_token);
-    }
-
-
-    /**
-     * Gets GRP_ID
-     *
-     * @return int
-     */
-    public function GRP_ID()
-    {
-        return $this->get('GRP_ID');
-    }
-
-
-    /**
-     * Sets GRP_ID
-     *
-     * @param int $GRP_ID
-     */
-    public function set_GRP_ID($GRP_ID)
-    {
-        $this->set('GRP_ID', $GRP_ID);
-    }
-
-
-    /**
-     * Gets TXN_ID
-     *
-     * @return int
-     */
-    public function TXN_ID()
-    {
-        return $this->get('TXN_ID');
-    }
-
-
-    /**
-     * Sets TXN_ID
-     *
-     * @param int $TXN_ID
-     */
-    public function set_TXN_ID($TXN_ID)
-    {
-        $this->set('TXN_ID', $TXN_ID);
-    }
-
-
-    /**
-     * Gets messenger
-     *
-     * @return string
-     */
-    public function messenger()
-    {
-        return $this->get('MSG_messenger');
-    }
-
-
-    /**
-     * Sets messenger
-     *
-     * @param string $messenger
-     */
-    public function set_messenger($messenger)
-    {
-        $this->set('MSG_messenger', $messenger);
-    }
-
-
-    /**
-     * Returns corresponding messenger object for the set messenger on this message
-     *
-     * @return EE_messenger | null
-     */
-    public function messenger_object()
-    {
-        return $this->_messenger;
-    }
-
-
-    /**
-     * Sets messenger
-     *
-     * @param EE_messenger $messenger
-     */
-    public function set_messenger_object(EE_messenger $messenger)
-    {
-        $this->_messenger = $messenger;
-    }
-
-
-    /**
-     * validates messenger
-     *
-     * @param bool $throw_exceptions
-     * @return bool
-     * @throws \EE_Error
-     */
-    public function valid_messenger($throw_exceptions = false)
-    {
-        if ($this->_messenger instanceof EE_messenger) {
-            return true;
-        }
-        if ($throw_exceptions) {
-            throw new EE_Error(
-                sprintf(
-                    __(
-                        'The "%1$s" messenger set for this message is missing or invalid. Please double-check the spelling and verify that the correct files exist.',
-                        'event_espresso'
-                    ),
-                    $this->messenger()
-                )
-            );
-        }
-        return false;
-    }
-
-
-    /**
-     * This returns the set localized label for the messenger on this message.
-     * Note, if unable to retrieve the EE_messenger object then will just return the messenger slug saved
-     * with this message.
-     *
-     * @param   bool $plural whether to return the plural label or not.
-     * @return string
-     */
-    public function messenger_label($plural = false)
-    {
-        $label_type = $plural ? 'plural' : 'singular';
-        $messenger = $this->messenger_object();
-        return $messenger instanceof EE_messenger ? $messenger->label[ $label_type ] : $this->messenger();
-    }
-
-
-    /**
-     * Gets message_type
-     *
-     * @return string
-     */
-    public function message_type()
-    {
-        return $this->get('MSG_message_type');
-    }
-
-
-    /**
-     * Sets message_type
-     *
-     * @param string $message_type
-     */
-    public function set_message_type($message_type)
-    {
-        $this->set('MSG_message_type', $message_type);
-    }
-
-
-    /**
-     * Returns the message type object for the set message type on this message
-     *
-     * @return EE_message_type | null
-     */
-    public function message_type_object()
-    {
-        return $this->_message_type;
-    }
-
-
-    /**
-     * Sets message_type
-     *
-     * @param EE_message_type $message_type
-     * @param bool            $set_priority   This indicates whether to set the priority to whatever the priority is on
-     *                                        the message type or not.
-     */
-    public function set_message_type_object(EE_message_type $message_type, $set_priority = false)
-    {
-        $this->_message_type = $message_type;
-        if ($set_priority) {
-            $this->set_priority($this->_message_type->get_priority());
-        }
-    }
-
-
-    /**
-     * validates message_type
-     *
-     * @param bool $throw_exceptions
-     * @return bool
-     * @throws \EE_Error
-     */
-    public function valid_message_type($throw_exceptions = false)
-    {
-        if ($this->_message_type instanceof EE_message_type) {
-            return true;
-        }
-        if ($throw_exceptions) {
-            throw new EE_Error(
-                sprintf(
-                    __(
-                        'The %1$s message type set for this message is missing or invalid. Please double-check the spelling and verify that the correct files exist.',
-                        'event_espresso'
-                    ),
-                    $this->message_type()
-                )
-            );
-        }
-        return false;
-    }
-
-
-    /**
-     * validates messenger and message_type (that they are valid EE_messenger and EE_message_type objects).
-     *
-     * @param bool $throw_exceptions
-     * @return bool
-     * @throws \EE_Error
-     */
-    public function is_valid($throw_exceptions = false)
-    {
-        if ($this->valid_messenger($throw_exceptions) && $this->valid_message_type($throw_exceptions)) {
-            return true;
-        }
-        return false;
-    }
-
-
-    /**
-     * This validates whether the internal messenger and message type objects are valid for sending.
-     * Three checks are done:
-     * 1. There is a valid messenger object.
-     * 2. There is a valid message type object.
-     * 3. The message type object is active for the messenger.
-     *
-     * @throws EE_Error  But only if $throw_exceptions is set to true.
-     * @param bool $throw_exceptions
-     * @return bool
-     */
-    public function is_valid_for_sending_or_generation($throw_exceptions = false)
-    {
-        $valid = false;
-        if ($this->is_valid($throw_exceptions)) {
-            /** @var EE_Message_Resource_Manager $message_resource_manager */
-            $message_resource_manager = EE_Registry::instance()->load_lib('Message_Resource_Manager');
-            $valid = $message_resource_manager->is_message_type_active_for_messenger(
-                $this->messenger(),
-                $this->message_type()
-            );
-            if (! $valid && $throw_exceptions) {
-                throw new EE_Error(
-                    sprintf(
-                        __(
-                            'The %1$s message type is not a valid message type for the %2$s messenger so it will not be sent.',
-                            'event_espresso'
-                        ),
-                        $this->message_type(),
-                        $this->messenger()
-                    )
-                );
-            }
-        }
-        return $valid;
-    }
-
-
-    /**
-     * This returns the set localized label for the message type on this message.
-     * Note, if unable to retrieve the EE_message_type object then will just return the message type slug saved
-     * with this message.
-     *
-     * @param   bool $plural whether to return the plural label or not.
-     * @return string
-     */
-    public function message_type_label($plural = false)
-    {
-        $label_type = $plural ? 'plural' : 'singular';
-        $message_type = $this->message_type_object();
-        return $message_type instanceof EE_message_type
-            ? $message_type->label[ $label_type ]
-            : str_replace(
-                '_',
-                ' ',
-                $this->message_type()
-            );
-    }
-
-
-    /**
-     * Gets context
-     *
-     * @return string
-     */
-    public function context()
-    {
-        return $this->get('MSG_context');
-    }
-
-
-    /**
-     * This returns the corresponding localized label for the given context slug, if possible from installed message
-     * types. Otherwise, this will just return the set context slug on this object.
-     *
-     * @return string
-     */
-    public function context_label()
-    {
-        /** @type EE_Message_Resource_Manager $message_resource_manager */
-        $message_resource_manager = EE_Registry::instance()->load_lib('Message_Resource_Manager');
-        $contexts = $message_resource_manager->get_all_contexts();
-        return isset($contexts[ $this->context() ]) ? $contexts[ $this->context() ] : $this->context();
-    }
-
-
-    /**
-     * Sets context
-     *
-     * @param string $context
-     */
-    public function set_context($context)
-    {
-        $this->set('MSG_context', $context);
-    }
-
-
-    /**
-     * Gets recipient_ID
-     *
-     * @return int
-     */
-    public function recipient_ID()
-    {
-        return $this->get('MSG_recipient_ID');
-    }
-
-
-    /**
-     * Sets recipient_ID
-     *
-     * @param string $recipient_ID
-     */
-    public function set_recipient_ID($recipient_ID)
-    {
-        $this->set('MSG_recipient_ID', $recipient_ID);
-    }
-
-
-    /**
-     * Gets recipient_type
-     *
-     * @return string
-     */
-    public function recipient_type()
-    {
-        return $this->get('MSG_recipient_type');
-    }
-
-
-    /**
-     * Return the related object matching the recipient type and ID.
-     *
-     * @return EE_Base_Class | null
-     */
-    public function recipient_object()
-    {
-        if (! $this->recipient_type() || ! $this->recipient_ID()) {
-            return null;
-        }
-
-        return $this->get_first_related($this->recipient_type());
-    }
-
-
-    /**
-     * Sets recipient_type
-     *
-     * @param string $recipient_type
-     */
-    public function set_recipient_type($recipient_type)
-    {
-        $this->set('MSG_recipient_type', $recipient_type);
-    }
-
-
-    /**
-     * Gets content
-     *
-     * @return string
-     */
-    public function content()
-    {
-        return $this->get('MSG_content');
-    }
-
-
-    /**
-     * Sets content
-     *
-     * @param string $content
-     */
-    public function set_content($content)
-    {
-        $this->set('MSG_content', $content);
-    }
-
-
-    /**
-     * Gets subject
-     *
-     * @return string
-     */
-    public function subject()
-    {
-        return $this->get('MSG_subject');
-    }
-
-
-    /**
-     * Sets subject
-     *
-     * @param string $subject
-     */
-    public function set_subject($subject)
-    {
-        $this->set('MSG_subject', $subject);
-    }
-
-
-    /**
-     * Gets to
-     *
-     * @return string
-     */
-    public function to()
-    {
-        $to = $this->get('MSG_to');
-        return empty($to) ? __('No recipient', 'event_espresso') : $to;
-    }
-
-
-    /**
-     * Sets to
-     *
-     * @param string $to
-     */
-    public function set_to($to)
-    {
-        $this->set('MSG_to', $to);
-    }
-
-
-    /**
-     * Gets from
-     *
-     * @return string
-     */
-    public function from()
-    {
-        return $this->get('MSG_from');
-    }
-
-
-    /**
-     * Sets from
-     *
-     * @param string $from
-     */
-    public function set_from($from)
-    {
-        $this->set('MSG_from', $from);
-    }
-
-
-    /**
-     * Gets priority
-     *
-     * @return int
-     */
-    public function priority()
-    {
-        return $this->get('MSG_priority');
-    }
-
-
-    /**
-     * Sets priority
-     * Note.  Send Now Messengers always override any priority that may be set on a Message.  So
-     * this method calls the send_now method to verify that.
-     *
-     * @param int $priority
-     */
-    public function set_priority($priority)
-    {
-        $priority = $this->send_now() ? EEM_Message::priority_high : $priority;
-        parent::set('MSG_priority', $priority);
-    }
-
-
-    /**
-     * Overrides parent::set method so we can capture any sets for priority.
-     *
-     * @see parent::set() for phpdocs
-     * @param string $field_name
-     * @param mixed  $field_value
-     * @param bool   $use_default
-     * @throws EE_Error
-     */
-    public function set($field_name, $field_value, $use_default = false)
-    {
-        if ($field_name === 'MSG_priority') {
-            $this->set_priority($field_value);
-        }
-        parent::set($field_name, $field_value, $use_default);
-    }
-
-
-    /**
-     * @return bool
-     * @throws \EE_Error
-     */
-    public function send_now()
-    {
-        $send_now = $this->valid_messenger() && $this->messenger_object()->send_now() ? EEM_Message::priority_high
-            : $this->priority();
-        return $send_now === EEM_Message::priority_high ? true : false;
-    }
-
-
-    /**
-     * Gets STS_ID
-     *
-     * @return string
-     */
-    public function STS_ID()
-    {
-        return $this->get('STS_ID');
-    }
-
-
-    /**
-     * Sets STS_ID
-     *
-     * @param string $STS_ID
-     */
-    public function set_STS_ID($STS_ID)
-    {
-        $this->set('STS_ID', $STS_ID);
-    }
-
-
-    /**
-     * Gets created
-     *
-     * @return string
-     */
-    public function created()
-    {
-        return $this->get('MSG_created');
-    }
-
-
-    /**
-     * Sets created
-     *
-     * @param string $created
-     */
-    public function set_created($created)
-    {
-        $this->set('MSG_created', $created);
-    }
-
-
-    /**
-     * Gets modified
-     *
-     * @return string
-     */
-    public function modified()
-    {
-        return $this->get('MSG_modified');
-    }
-
-
-    /**
-     * Sets modified
-     *
-     * @param string $modified
-     */
-    public function set_modified($modified)
-    {
-        $this->set('MSG_modified', $modified);
-    }
-
-
-    /**
-     * Sets generation data for this message.
-     *
-     * @param mixed $data
-     */
-    public function set_generation_data($data)
-    {
-        $this->set_field_or_extra_meta('MSG_generation_data', $data);
-    }
-
-
-    /**
-     * Returns any set generation data for this message.
-     *
-     * @return mixed|null
-     */
-    public function get_generation_data()
-    {
-        return $this->get_field_or_extra_meta('MSG_generation_data');
-    }
-
-
-    /**
-     * Gets any error message.
-     *
-     * @return mixed|null
-     */
-    public function error_message()
-    {
-        return $this->get_field_or_extra_meta('MSG_error');
-    }
-
-
-    /**
-     * Sets an error message.
-     *
-     * @param $message
-     * @return bool|int
-     */
-    public function set_error_message($message)
-    {
-        return $this->set_field_or_extra_meta('MSG_error', $message);
-    }
-
-
-    /**
-     * This retrieves the associated template pack with this message.
-     *
-     * @return EE_Messages_Template_Pack | null
-     */
-    public function get_template_pack()
-    {
-        /**
-         * This is deprecated functionality that will be removed eventually but included here now for backward compat.
-         */
-        if (! empty($this->template_pack)) {
-            return $this->template_pack;
-        }
-        /** @type EE_Message_Template_Group $grp */
-        $grp = $this->get_first_related('Message_Template_Group');
-        // if no group then let's try to get the first related group by internal messenger and message type (will use global grp).
-        if (! $grp instanceof EE_Message_Template_Group) {
-            $grp = EEM_Message_Template_Group::instance()->get_one(
-                array(
-                    array(
-                        'MTP_messenger'    => $this->messenger(),
-                        'MTP_message_type' => $this->message_type(),
-                        'MTP_is_global'    => true,
-                    ),
-                )
-            );
-        }
-
-        return $grp instanceof EE_Message_Template_Group ? $grp->get_template_pack() : null;
-    }
-
-
-    /**
-     * Retrieves the variation used for generating this message.
-     *
-     * @return string
-     */
-    public function get_template_pack_variation()
-    {
-        /**
-         * This is deprecated functionality that will be removed eventually but included here now for backward compat.
-         */
-        if (! empty($this->template_variation)) {
-            return $this->template_variation;
-        }
-
-        /** @type EE_Message_Template_Group $grp */
-        $grp = $this->get_first_related('Message_Template_Group');
-
-        // if no group then let's try to get the first related group by internal messenger and message type (will use global grp).
-        if (! $grp instanceof EE_Message_Template_Group) {
-            $grp = EEM_Message_Template_Group::instance()->get_one(
-                array(
-                    array(
-                        'MTP_messenger'    => $this->messenger(),
-                        'MTP_message_type' => $this->message_type(),
-                        'MTP_is_global'    => true,
-                    ),
-                )
-            );
-        }
-
-        return $grp instanceof EE_Message_Template_Group ? $grp->get_template_pack_variation() : '';
-    }
-
-    /**
-     * Return the link to the admin details for the object.
-     *
-     * @return string
-     */
-    public function get_admin_details_link()
-    {
-        EE_Registry::instance()->load_helper('URL');
-        EE_Registry::instance()->load_helper('MSG_Template');
-        switch ($this->STS_ID()) {
-            case EEM_Message::status_failed:
-            case EEM_Message::status_debug_only:
-                return EEH_MSG_Template::generate_error_display_trigger($this);
-                break;
-
-            case EEM_Message::status_sent:
-                return EEH_MSG_Template::generate_browser_trigger($this);
-                break;
-
-            default:
-                return '';
-        }
-    }
-
-    /**
-     * Returns the link to the editor for the object.  Sometimes this is the same as the details.
-     *
-     * @return string
-     */
-    public function get_admin_edit_link()
-    {
-        return $this->get_admin_details_link();
-    }
-
-    /**
-     * Returns the link to a settings page for the object.
-     *
-     * @return string
-     */
-    public function get_admin_settings_link()
-    {
-        EE_Registry::instance()->load_helper('URL');
-        return EEH_URL::add_query_args_and_nonce(
-            array(
-                'page'   => 'espresso_messages',
-                'action' => 'settings',
-            ),
-            admin_url('admin.php')
-        );
-    }
-
-    /**
-     * Returns the link to the "overview" for the object (typically the "list table" view).
-     *
-     * @return string
-     */
-    public function get_admin_overview_link()
-    {
-        EE_Registry::instance()->load_helper('URL');
-        return EEH_URL::add_query_args_and_nonce(
-            array(
-                'page'   => 'espresso_messages',
-                'action' => 'default',
-            ),
-            admin_url('admin.php')
-        );
-    }
-
-
-    /**
-     * This sets the EEM_Message::status_messenger_executing class on the message and the appropriate error message for
-     * it.
-     * Note this also SAVES the current message object to the db because it adds an error message to accompany the
-     * status.
-     *
-     */
-    public function set_messenger_is_executing()
-    {
-        $this->set_STS_ID(EEM_Message::status_messenger_executing);
-        $this->set_error_message(
-            esc_html__(
-                'A message with this status indicates that there was a problem that occurred while the message was being
+	/**
+	 * @deprecated 4.9.0  Added for backward compat with add-on's
+	 * @type null
+	 */
+	public $template_pack;
+
+	/**
+	 * @deprecated 4.9.0 Added for backward compat with add-on's
+	 * @type null
+	 */
+	public $template_variation;
+
+	/**
+	 * @deprecated 4.9.0 Added for backward compat with add-on's
+	 * @type string
+	 */
+	public $content = '';
+
+
+	/**
+	 * @type EE_messenger $_messenger
+	 */
+	protected $_messenger = null;
+
+	/**
+	 * @type EE_message_type $_message_type
+	 */
+	protected $_message_type = null;
+
+
+	/**
+	 * @param array  $props_n_values
+	 * @param string $timezone
+	 * @param array  $date_formats incoming date formats in an array.  First value is the date_format, second is time
+	 *                             format.
+	 * @return EE_Message
+	 */
+	public static function new_instance($props_n_values = array(), $timezone = null, $date_formats = array())
+	{
+		$has_object = parent::_check_for_object($props_n_values, __CLASS__);
+		// if object doesn't exist, let's generate a unique token on instantiation so that its available even before saving to db.
+		if (! $has_object) {
+			EE_Registry::instance()->load_helper('URL');
+			$props_n_values['MSG_token'] = EEH_URL::generate_unique_token();
+		}
+		return $has_object ? $has_object : new self($props_n_values, false, $timezone, $date_formats);
+	}
+
+
+	/**
+	 * @param array  $props_n_values
+	 * @param string $timezone
+	 * @return EE_Message
+	 */
+	public static function new_instance_from_db($props_n_values = array(), $timezone = null)
+	{
+		return new self($props_n_values, true, $timezone);
+	}
+
+
+	/**
+	 * Gets MSG_token
+	 *
+	 * @return int
+	 */
+	public function MSG_token()
+	{
+		return $this->get('MSG_token');
+	}
+
+
+	/**
+	 * Sets MSG_token
+	 *
+	 * @param int $MSG_token
+	 */
+	public function set_MSG_token($MSG_token)
+	{
+		$this->set('MSG_token', $MSG_token);
+	}
+
+
+	/**
+	 * Gets GRP_ID
+	 *
+	 * @return int
+	 */
+	public function GRP_ID()
+	{
+		return $this->get('GRP_ID');
+	}
+
+
+	/**
+	 * Sets GRP_ID
+	 *
+	 * @param int $GRP_ID
+	 */
+	public function set_GRP_ID($GRP_ID)
+	{
+		$this->set('GRP_ID', $GRP_ID);
+	}
+
+
+	/**
+	 * Gets TXN_ID
+	 *
+	 * @return int
+	 */
+	public function TXN_ID()
+	{
+		return $this->get('TXN_ID');
+	}
+
+
+	/**
+	 * Sets TXN_ID
+	 *
+	 * @param int $TXN_ID
+	 */
+	public function set_TXN_ID($TXN_ID)
+	{
+		$this->set('TXN_ID', $TXN_ID);
+	}
+
+
+	/**
+	 * Gets messenger
+	 *
+	 * @return string
+	 */
+	public function messenger()
+	{
+		return $this->get('MSG_messenger');
+	}
+
+
+	/**
+	 * Sets messenger
+	 *
+	 * @param string $messenger
+	 */
+	public function set_messenger($messenger)
+	{
+		$this->set('MSG_messenger', $messenger);
+	}
+
+
+	/**
+	 * Returns corresponding messenger object for the set messenger on this message
+	 *
+	 * @return EE_messenger | null
+	 */
+	public function messenger_object()
+	{
+		return $this->_messenger;
+	}
+
+
+	/**
+	 * Sets messenger
+	 *
+	 * @param EE_messenger $messenger
+	 */
+	public function set_messenger_object(EE_messenger $messenger)
+	{
+		$this->_messenger = $messenger;
+	}
+
+
+	/**
+	 * validates messenger
+	 *
+	 * @param bool $throw_exceptions
+	 * @return bool
+	 * @throws \EE_Error
+	 */
+	public function valid_messenger($throw_exceptions = false)
+	{
+		if ($this->_messenger instanceof EE_messenger) {
+			return true;
+		}
+		if ($throw_exceptions) {
+			throw new EE_Error(
+				sprintf(
+					__(
+						'The "%1$s" messenger set for this message is missing or invalid. Please double-check the spelling and verify that the correct files exist.',
+						'event_espresso'
+					),
+					$this->messenger()
+				)
+			);
+		}
+		return false;
+	}
+
+
+	/**
+	 * This returns the set localized label for the messenger on this message.
+	 * Note, if unable to retrieve the EE_messenger object then will just return the messenger slug saved
+	 * with this message.
+	 *
+	 * @param   bool $plural whether to return the plural label or not.
+	 * @return string
+	 */
+	public function messenger_label($plural = false)
+	{
+		$label_type = $plural ? 'plural' : 'singular';
+		$messenger = $this->messenger_object();
+		return $messenger instanceof EE_messenger ? $messenger->label[ $label_type ] : $this->messenger();
+	}
+
+
+	/**
+	 * Gets message_type
+	 *
+	 * @return string
+	 */
+	public function message_type()
+	{
+		return $this->get('MSG_message_type');
+	}
+
+
+	/**
+	 * Sets message_type
+	 *
+	 * @param string $message_type
+	 */
+	public function set_message_type($message_type)
+	{
+		$this->set('MSG_message_type', $message_type);
+	}
+
+
+	/**
+	 * Returns the message type object for the set message type on this message
+	 *
+	 * @return EE_message_type | null
+	 */
+	public function message_type_object()
+	{
+		return $this->_message_type;
+	}
+
+
+	/**
+	 * Sets message_type
+	 *
+	 * @param EE_message_type $message_type
+	 * @param bool            $set_priority   This indicates whether to set the priority to whatever the priority is on
+	 *                                        the message type or not.
+	 */
+	public function set_message_type_object(EE_message_type $message_type, $set_priority = false)
+	{
+		$this->_message_type = $message_type;
+		if ($set_priority) {
+			$this->set_priority($this->_message_type->get_priority());
+		}
+	}
+
+
+	/**
+	 * validates message_type
+	 *
+	 * @param bool $throw_exceptions
+	 * @return bool
+	 * @throws \EE_Error
+	 */
+	public function valid_message_type($throw_exceptions = false)
+	{
+		if ($this->_message_type instanceof EE_message_type) {
+			return true;
+		}
+		if ($throw_exceptions) {
+			throw new EE_Error(
+				sprintf(
+					__(
+						'The %1$s message type set for this message is missing or invalid. Please double-check the spelling and verify that the correct files exist.',
+						'event_espresso'
+					),
+					$this->message_type()
+				)
+			);
+		}
+		return false;
+	}
+
+
+	/**
+	 * validates messenger and message_type (that they are valid EE_messenger and EE_message_type objects).
+	 *
+	 * @param bool $throw_exceptions
+	 * @return bool
+	 * @throws \EE_Error
+	 */
+	public function is_valid($throw_exceptions = false)
+	{
+		if ($this->valid_messenger($throw_exceptions) && $this->valid_message_type($throw_exceptions)) {
+			return true;
+		}
+		return false;
+	}
+
+
+	/**
+	 * This validates whether the internal messenger and message type objects are valid for sending.
+	 * Three checks are done:
+	 * 1. There is a valid messenger object.
+	 * 2. There is a valid message type object.
+	 * 3. The message type object is active for the messenger.
+	 *
+	 * @throws EE_Error  But only if $throw_exceptions is set to true.
+	 * @param bool $throw_exceptions
+	 * @return bool
+	 */
+	public function is_valid_for_sending_or_generation($throw_exceptions = false)
+	{
+		$valid = false;
+		if ($this->is_valid($throw_exceptions)) {
+			/** @var EE_Message_Resource_Manager $message_resource_manager */
+			$message_resource_manager = EE_Registry::instance()->load_lib('Message_Resource_Manager');
+			$valid = $message_resource_manager->is_message_type_active_for_messenger(
+				$this->messenger(),
+				$this->message_type()
+			);
+			if (! $valid && $throw_exceptions) {
+				throw new EE_Error(
+					sprintf(
+						__(
+							'The %1$s message type is not a valid message type for the %2$s messenger so it will not be sent.',
+							'event_espresso'
+						),
+						$this->message_type(),
+						$this->messenger()
+					)
+				);
+			}
+		}
+		return $valid;
+	}
+
+
+	/**
+	 * This returns the set localized label for the message type on this message.
+	 * Note, if unable to retrieve the EE_message_type object then will just return the message type slug saved
+	 * with this message.
+	 *
+	 * @param   bool $plural whether to return the plural label or not.
+	 * @return string
+	 */
+	public function message_type_label($plural = false)
+	{
+		$label_type = $plural ? 'plural' : 'singular';
+		$message_type = $this->message_type_object();
+		return $message_type instanceof EE_message_type
+			? $message_type->label[ $label_type ]
+			: str_replace(
+				'_',
+				' ',
+				$this->message_type()
+			);
+	}
+
+
+	/**
+	 * Gets context
+	 *
+	 * @return string
+	 */
+	public function context()
+	{
+		return $this->get('MSG_context');
+	}
+
+
+	/**
+	 * This returns the corresponding localized label for the given context slug, if possible from installed message
+	 * types. Otherwise, this will just return the set context slug on this object.
+	 *
+	 * @return string
+	 */
+	public function context_label()
+	{
+		/** @type EE_Message_Resource_Manager $message_resource_manager */
+		$message_resource_manager = EE_Registry::instance()->load_lib('Message_Resource_Manager');
+		$contexts = $message_resource_manager->get_all_contexts();
+		return isset($contexts[ $this->context() ]) ? $contexts[ $this->context() ] : $this->context();
+	}
+
+
+	/**
+	 * Sets context
+	 *
+	 * @param string $context
+	 */
+	public function set_context($context)
+	{
+		$this->set('MSG_context', $context);
+	}
+
+
+	/**
+	 * Gets recipient_ID
+	 *
+	 * @return int
+	 */
+	public function recipient_ID()
+	{
+		return $this->get('MSG_recipient_ID');
+	}
+
+
+	/**
+	 * Sets recipient_ID
+	 *
+	 * @param string $recipient_ID
+	 */
+	public function set_recipient_ID($recipient_ID)
+	{
+		$this->set('MSG_recipient_ID', $recipient_ID);
+	}
+
+
+	/**
+	 * Gets recipient_type
+	 *
+	 * @return string
+	 */
+	public function recipient_type()
+	{
+		return $this->get('MSG_recipient_type');
+	}
+
+
+	/**
+	 * Return the related object matching the recipient type and ID.
+	 *
+	 * @return EE_Base_Class | null
+	 */
+	public function recipient_object()
+	{
+		if (! $this->recipient_type() || ! $this->recipient_ID()) {
+			return null;
+		}
+
+		return $this->get_first_related($this->recipient_type());
+	}
+
+
+	/**
+	 * Sets recipient_type
+	 *
+	 * @param string $recipient_type
+	 */
+	public function set_recipient_type($recipient_type)
+	{
+		$this->set('MSG_recipient_type', $recipient_type);
+	}
+
+
+	/**
+	 * Gets content
+	 *
+	 * @return string
+	 */
+	public function content()
+	{
+		return $this->get('MSG_content');
+	}
+
+
+	/**
+	 * Sets content
+	 *
+	 * @param string $content
+	 */
+	public function set_content($content)
+	{
+		$this->set('MSG_content', $content);
+	}
+
+
+	/**
+	 * Gets subject
+	 *
+	 * @return string
+	 */
+	public function subject()
+	{
+		return $this->get('MSG_subject');
+	}
+
+
+	/**
+	 * Sets subject
+	 *
+	 * @param string $subject
+	 */
+	public function set_subject($subject)
+	{
+		$this->set('MSG_subject', $subject);
+	}
+
+
+	/**
+	 * Gets to
+	 *
+	 * @return string
+	 */
+	public function to()
+	{
+		$to = $this->get('MSG_to');
+		return empty($to) ? __('No recipient', 'event_espresso') : $to;
+	}
+
+
+	/**
+	 * Sets to
+	 *
+	 * @param string $to
+	 */
+	public function set_to($to)
+	{
+		$this->set('MSG_to', $to);
+	}
+
+
+	/**
+	 * Gets from
+	 *
+	 * @return string
+	 */
+	public function from()
+	{
+		return $this->get('MSG_from');
+	}
+
+
+	/**
+	 * Sets from
+	 *
+	 * @param string $from
+	 */
+	public function set_from($from)
+	{
+		$this->set('MSG_from', $from);
+	}
+
+
+	/**
+	 * Gets priority
+	 *
+	 * @return int
+	 */
+	public function priority()
+	{
+		return $this->get('MSG_priority');
+	}
+
+
+	/**
+	 * Sets priority
+	 * Note.  Send Now Messengers always override any priority that may be set on a Message.  So
+	 * this method calls the send_now method to verify that.
+	 *
+	 * @param int $priority
+	 */
+	public function set_priority($priority)
+	{
+		$priority = $this->send_now() ? EEM_Message::priority_high : $priority;
+		parent::set('MSG_priority', $priority);
+	}
+
+
+	/**
+	 * Overrides parent::set method so we can capture any sets for priority.
+	 *
+	 * @see parent::set() for phpdocs
+	 * @param string $field_name
+	 * @param mixed  $field_value
+	 * @param bool   $use_default
+	 * @throws EE_Error
+	 */
+	public function set($field_name, $field_value, $use_default = false)
+	{
+		if ($field_name === 'MSG_priority') {
+			$this->set_priority($field_value);
+		}
+		parent::set($field_name, $field_value, $use_default);
+	}
+
+
+	/**
+	 * @return bool
+	 * @throws \EE_Error
+	 */
+	public function send_now()
+	{
+		$send_now = $this->valid_messenger() && $this->messenger_object()->send_now() ? EEM_Message::priority_high
+			: $this->priority();
+		return $send_now === EEM_Message::priority_high ? true : false;
+	}
+
+
+	/**
+	 * Gets STS_ID
+	 *
+	 * @return string
+	 */
+	public function STS_ID()
+	{
+		return $this->get('STS_ID');
+	}
+
+
+	/**
+	 * Sets STS_ID
+	 *
+	 * @param string $STS_ID
+	 */
+	public function set_STS_ID($STS_ID)
+	{
+		$this->set('STS_ID', $STS_ID);
+	}
+
+
+	/**
+	 * Gets created
+	 *
+	 * @return string
+	 */
+	public function created()
+	{
+		return $this->get('MSG_created');
+	}
+
+
+	/**
+	 * Sets created
+	 *
+	 * @param string $created
+	 */
+	public function set_created($created)
+	{
+		$this->set('MSG_created', $created);
+	}
+
+
+	/**
+	 * Gets modified
+	 *
+	 * @return string
+	 */
+	public function modified()
+	{
+		return $this->get('MSG_modified');
+	}
+
+
+	/**
+	 * Sets modified
+	 *
+	 * @param string $modified
+	 */
+	public function set_modified($modified)
+	{
+		$this->set('MSG_modified', $modified);
+	}
+
+
+	/**
+	 * Sets generation data for this message.
+	 *
+	 * @param mixed $data
+	 */
+	public function set_generation_data($data)
+	{
+		$this->set_field_or_extra_meta('MSG_generation_data', $data);
+	}
+
+
+	/**
+	 * Returns any set generation data for this message.
+	 *
+	 * @return mixed|null
+	 */
+	public function get_generation_data()
+	{
+		return $this->get_field_or_extra_meta('MSG_generation_data');
+	}
+
+
+	/**
+	 * Gets any error message.
+	 *
+	 * @return mixed|null
+	 */
+	public function error_message()
+	{
+		return $this->get_field_or_extra_meta('MSG_error');
+	}
+
+
+	/**
+	 * Sets an error message.
+	 *
+	 * @param $message
+	 * @return bool|int
+	 */
+	public function set_error_message($message)
+	{
+		return $this->set_field_or_extra_meta('MSG_error', $message);
+	}
+
+
+	/**
+	 * This retrieves the associated template pack with this message.
+	 *
+	 * @return EE_Messages_Template_Pack | null
+	 */
+	public function get_template_pack()
+	{
+		/**
+		 * This is deprecated functionality that will be removed eventually but included here now for backward compat.
+		 */
+		if (! empty($this->template_pack)) {
+			return $this->template_pack;
+		}
+		/** @type EE_Message_Template_Group $grp */
+		$grp = $this->get_first_related('Message_Template_Group');
+		// if no group then let's try to get the first related group by internal messenger and message type (will use global grp).
+		if (! $grp instanceof EE_Message_Template_Group) {
+			$grp = EEM_Message_Template_Group::instance()->get_one(
+				array(
+					array(
+						'MTP_messenger'    => $this->messenger(),
+						'MTP_message_type' => $this->message_type(),
+						'MTP_is_global'    => true,
+					),
+				)
+			);
+		}
+
+		return $grp instanceof EE_Message_Template_Group ? $grp->get_template_pack() : null;
+	}
+
+
+	/**
+	 * Retrieves the variation used for generating this message.
+	 *
+	 * @return string
+	 */
+	public function get_template_pack_variation()
+	{
+		/**
+		 * This is deprecated functionality that will be removed eventually but included here now for backward compat.
+		 */
+		if (! empty($this->template_variation)) {
+			return $this->template_variation;
+		}
+
+		/** @type EE_Message_Template_Group $grp */
+		$grp = $this->get_first_related('Message_Template_Group');
+
+		// if no group then let's try to get the first related group by internal messenger and message type (will use global grp).
+		if (! $grp instanceof EE_Message_Template_Group) {
+			$grp = EEM_Message_Template_Group::instance()->get_one(
+				array(
+					array(
+						'MTP_messenger'    => $this->messenger(),
+						'MTP_message_type' => $this->message_type(),
+						'MTP_is_global'    => true,
+					),
+				)
+			);
+		}
+
+		return $grp instanceof EE_Message_Template_Group ? $grp->get_template_pack_variation() : '';
+	}
+
+	/**
+	 * Return the link to the admin details for the object.
+	 *
+	 * @return string
+	 */
+	public function get_admin_details_link()
+	{
+		EE_Registry::instance()->load_helper('URL');
+		EE_Registry::instance()->load_helper('MSG_Template');
+		switch ($this->STS_ID()) {
+			case EEM_Message::status_failed:
+			case EEM_Message::status_debug_only:
+				return EEH_MSG_Template::generate_error_display_trigger($this);
+				break;
+
+			case EEM_Message::status_sent:
+				return EEH_MSG_Template::generate_browser_trigger($this);
+				break;
+
+			default:
+				return '';
+		}
+	}
+
+	/**
+	 * Returns the link to the editor for the object.  Sometimes this is the same as the details.
+	 *
+	 * @return string
+	 */
+	public function get_admin_edit_link()
+	{
+		return $this->get_admin_details_link();
+	}
+
+	/**
+	 * Returns the link to a settings page for the object.
+	 *
+	 * @return string
+	 */
+	public function get_admin_settings_link()
+	{
+		EE_Registry::instance()->load_helper('URL');
+		return EEH_URL::add_query_args_and_nonce(
+			array(
+				'page'   => 'espresso_messages',
+				'action' => 'settings',
+			),
+			admin_url('admin.php')
+		);
+	}
+
+	/**
+	 * Returns the link to the "overview" for the object (typically the "list table" view).
+	 *
+	 * @return string
+	 */
+	public function get_admin_overview_link()
+	{
+		EE_Registry::instance()->load_helper('URL');
+		return EEH_URL::add_query_args_and_nonce(
+			array(
+				'page'   => 'espresso_messages',
+				'action' => 'default',
+			),
+			admin_url('admin.php')
+		);
+	}
+
+
+	/**
+	 * This sets the EEM_Message::status_messenger_executing class on the message and the appropriate error message for
+	 * it.
+	 * Note this also SAVES the current message object to the db because it adds an error message to accompany the
+	 * status.
+	 *
+	 */
+	public function set_messenger_is_executing()
+	{
+		$this->set_STS_ID(EEM_Message::status_messenger_executing);
+		$this->set_error_message(
+			esc_html__(
+				'A message with this status indicates that there was a problem that occurred while the message was being
                 processed by the messenger.  It is still possible that the message was sent successfully, but at some
                 point during the processing there was a failure.  This usually is indicative of a timeout issue with PHP 
                 or memory limits being reached.  If you see this repeatedly you may want to consider upgrading the memory 
                 available to PHP on your server.',
-                'event_espresso'
-            )
-        );
-    }
+				'event_espresso'
+			)
+		);
+	}
 }

Spacing +10 added lines, -10 removed lines

@@ -51,7 +51,7 @@ 
     {
         $has_object = parent::_check_for_object($props_n_values, __CLASS__);
         // if object doesn't exist, let's generate a unique token on instantiation so that its available even before saving to db.
-        if (! $has_object) {
+        if ( ! $has_object) {
             EE_Registry::instance()->load_helper('URL');
             $props_n_values['MSG_token'] = EEH_URL::generate_unique_token();
         }
@@ -219,7 +219,7 @@ 
     {
         $label_type = $plural ? 'plural' : 'singular';
         $messenger = $this->messenger_object();
-        return $messenger instanceof EE_messenger ? $messenger->label[ $label_type ] : $this->messenger();
+        return $messenger instanceof EE_messenger ? $messenger->label[$label_type] : $this->messenger();
     }
 
 
@@ -336,7 +336,7 @@ 
                 $this->messenger(),
                 $this->message_type()
             );
-            if (! $valid && $throw_exceptions) {
+            if ( ! $valid && $throw_exceptions) {
                 throw new EE_Error(
                     sprintf(
                         __(
@@ -366,7 +366,7 @@ 
         $label_type = $plural ? 'plural' : 'singular';
         $message_type = $this->message_type_object();
         return $message_type instanceof EE_message_type
-            ? $message_type->label[ $label_type ]
+            ? $message_type->label[$label_type]
             : str_replace(
                 '_',
                 ' ',
@@ -397,7 +397,7 @@ 
         /** @type EE_Message_Resource_Manager $message_resource_manager */
         $message_resource_manager = EE_Registry::instance()->load_lib('Message_Resource_Manager');
         $contexts = $message_resource_manager->get_all_contexts();
-        return isset($contexts[ $this->context() ]) ? $contexts[ $this->context() ] : $this->context();
+        return isset($contexts[$this->context()]) ? $contexts[$this->context()] : $this->context();
     }
 
 
@@ -452,7 +452,7 @@ 
      */
     public function recipient_object()
     {
-        if (! $this->recipient_type() || ! $this->recipient_ID()) {
+        if ( ! $this->recipient_type() || ! $this->recipient_ID()) {
             return null;
         }
 
@@ -736,13 +736,13 @@ 
         /**
          * This is deprecated functionality that will be removed eventually but included here now for backward compat.
          */
-        if (! empty($this->template_pack)) {
+        if ( ! empty($this->template_pack)) {
             return $this->template_pack;
         }
         /** @type EE_Message_Template_Group $grp */
         $grp = $this->get_first_related('Message_Template_Group');
         // if no group then let's try to get the first related group by internal messenger and message type (will use global grp).
-        if (! $grp instanceof EE_Message_Template_Group) {
+        if ( ! $grp instanceof EE_Message_Template_Group) {
             $grp = EEM_Message_Template_Group::instance()->get_one(
                 array(
                     array(
@@ -768,7 +768,7 @@ 
         /**
          * This is deprecated functionality that will be removed eventually but included here now for backward compat.
          */
-        if (! empty($this->template_variation)) {
+        if ( ! empty($this->template_variation)) {
             return $this->template_variation;
         }
 
@@ -776,7 +776,7 @@ 
         $grp = $this->get_first_related('Message_Template_Group');
 
         // if no group then let's try to get the first related group by internal messenger and message type (will use global grp).
-        if (! $grp instanceof EE_Message_Template_Group) {
+        if ( ! $grp instanceof EE_Message_Template_Group) {
             $grp = EEM_Message_Template_Group::instance()->get_one(
                 array(
                     array(

core/db_classes/EE_CSV.class.php

Indentation +669 added lines, -669 removed lines

@@ -16,673 +16,673 @@
 class EE_CSV
 {
 
-    // instance of the EE_CSV object
-    private static $_instance = null;
-
-
-    // multidimensional array to store update & error messages
-    // var $_notices = array( 'updates' => array(), 'errors' => array() );
-
-
-    private $_primary_keys;
-
-    /**
-     *
-     * @var EE_Registry
-     */
-    private $EE;
-    /**
-     * string used for 1st cell in exports, which indicates that the following 2 rows will be metadata keys and values
-     */
-    const metadata_header = 'Event Espresso Export Meta Data';
-
-    /**
-     *        private constructor to prevent direct creation
-     *
-     * @Constructor
-     * @access private
-     * @return void
-     */
-    private function __construct()
-    {
-        global $wpdb;
-
-        $this->_primary_keys = array(
-            $wpdb->prefix . 'esp_answer'                  => array('ANS_ID'),
-            $wpdb->prefix . 'esp_attendee'                => array('ATT_ID'),
-            $wpdb->prefix . 'esp_datetime'                => array('DTT_ID'),
-            $wpdb->prefix . 'esp_event_question_group'    => array('EQG_ID'),
-            $wpdb->prefix . 'esp_message_template'        => array('MTP_ID'),
-            $wpdb->prefix . 'esp_payment'                 => array('PAY_ID'),
-            $wpdb->prefix . 'esp_price'                   => array('PRC_ID'),
-            $wpdb->prefix . 'esp_price_type'              => array('PRT_ID'),
-            $wpdb->prefix . 'esp_question'                => array('QST_ID'),
-            $wpdb->prefix . 'esp_question_group'          => array('QSG_ID'),
-            $wpdb->prefix . 'esp_question_group_question' => array('QGQ_ID'),
-            $wpdb->prefix . 'esp_question_option'         => array('QSO_ID'),
-            $wpdb->prefix . 'esp_registration'            => array('REG_ID'),
-            $wpdb->prefix . 'esp_status'                  => array('STS_ID'),
-            $wpdb->prefix . 'esp_transaction'             => array('TXN_ID'),
-            $wpdb->prefix . 'esp_transaction'             => array('TXN_ID'),
-            $wpdb->prefix . 'events_detail'               => array('id'),
-            $wpdb->prefix . 'events_category_detail'      => array('id'),
-            $wpdb->prefix . 'events_category_rel'         => array('id'),
-            $wpdb->prefix . 'events_venue'                => array('id'),
-            $wpdb->prefix . 'events_venue_rel'            => array('emeta_id'),
-            $wpdb->prefix . 'events_locale'               => array('id'),
-            $wpdb->prefix . 'events_locale_rel'           => array('id'),
-            $wpdb->prefix . 'events_personnel'            => array('id'),
-            $wpdb->prefix . 'events_personnel_rel'        => array('id'),
-        );
-    }
-
-
-    /**
-     *        @ singleton method used to instantiate class object
-     *        @ access public
-     *
-     * @return EE_CSV
-     */
-    public static function instance()
-    {
-        // check if class object is instantiated
-        if (self::$_instance === null or ! is_object(self::$_instance) or ! (self::$_instance instanceof EE_CSV)) {
-            self::$_instance = new self();
-        }
-        return self::$_instance;
-    }
-
-    /**
-     * Opens a unicode or utf file (normal file_get_contents has difficulty readin ga unicode file. @see
-     * http://stackoverflow.com/questions/15092764/how-to-read-unicode-text-file-in-php
-     *
-     * @param string $file_path
-     * @return string
-     * @throws EE_Error
-     */
-    private function read_unicode_file($file_path)
-    {
-        $fc = "";
-        $fh = fopen($file_path, "rb");
-        if (! $fh) {
-            throw new EE_Error(sprintf(__("Cannot open file for read: %s<br>\n", 'event_espresso'), $file_path));
-        }
-        $flen = filesize($file_path);
-        $bc = fread($fh, $flen);
-        for ($i = 0; $i < $flen; $i++) {
-            $c = substr($bc, $i, 1);
-            if ((ord($c) != 0) && (ord($c) != 13)) {
-                $fc = $fc . $c;
-            }
-        }
-        if ((ord(substr($fc, 0, 1)) == 255) && (ord(substr($fc, 1, 1)) == 254)) {
-            $fc = substr($fc, 2);
-        }
-        return ($fc);
-    }
-
-
-    /**
-     * Generic CSV-functionality to turn an entire CSV file into a single array that's
-     * NOT in a specific format to EE. It's just a 2-level array, with top-level arrays
-     * representing each row in the CSV file, and the second-level arrays being each column in that row
-     *
-     * @param string $path_to_file
-     * @return array of arrays. Top-level array has rows, second-level array has each item
-     */
-    public function import_csv_to_multi_dimensional_array($path_to_file)
-    {
-        // needed to deal with Mac line endings
-        ini_set('auto_detect_line_endings', true);
-
-        // because fgetcsv does not correctly deal with backslashed quotes such as \"
-        // we'll read the file into a string
-        $file_contents = $this->read_unicode_file($path_to_file);
-        // replace backslashed quotes with CSV enclosures
-        $file_contents = str_replace('\\"', '"""', $file_contents);
-        // HEY YOU! PUT THAT FILE BACK!!!
-        file_put_contents($path_to_file, $file_contents);
-
-        if (($file_handle = fopen($path_to_file, "r")) !== false) {
-            # Set the parent multidimensional array key to 0.
-            $nn = 0;
-            $csvarray = array();
-
-            // in PHP 5.3 fgetcsv accepts a 5th parameter, but the pre 5.3 versions of fgetcsv choke if passed more than 4 - is that crazy or what?
-            if (version_compare(PHP_VERSION, '5.3.0') < 0) {
-                //  PHP 5.2- version
-                // loop through each row of the file
-                while (($data = fgetcsv($file_handle, 0, ',', '"')) !== false) {
-                    $csvarray[] = $data;
-                }
-            } else {
-                // loop through each row of the file
-                while (($data = fgetcsv($file_handle, 0, ',', '"', '\\')) !== false) {
-                    $csvarray[] = $data;
-                }
-            }
-            # Close the File.
-            fclose($file_handle);
-            return $csvarray;
-        } else {
-            EE_Error::add_error(
-                sprintf(__("An error occurred - the file: %s could not opened.", "event_espresso"), $path_to_file),
-                __FILE__,
-                __FUNCTION__,
-                __LINE__
-            );
-            return false;
-        }
-    }
-
-
-    /**
-     * @Import contents of csv file and store values in an array to be manipulated by other functions
-     * @access public
-     * @param string  $path_to_file         - the csv file to be imported including the path to it's location.
-     *                                      If $model_name is provided, assumes that each row in the CSV represents a
-     *                                      model object for that model If $model_name ISN'T provided, assumes that
-     *                                      before model object data, there is a row where the first entry is simply
-     *                                      'MODEL', and next entry is the model's name, (untranslated) like Event, and
-     *                                      then maybe a row of headers, and then the model data. Eg.
-     *                                      '<br>MODEL,Event,<br>EVT_ID,EVT_name,...<br>1,Monkey
-     *                                      Party,...<br>2,Llamarama,...<br>MODEL,Venue,<br>VNU_ID,VNU_name<br>1,The
-     *                                      Forest
-     * @param string  $model_name           model name if we know what model we're importing
-     * @param boolean $first_row_is_headers - whether the first row of data is headers or not - TRUE = headers, FALSE =
-     *                                      data
-     * @return mixed - array on success - multi dimensional with headers as keys (if headers exist) OR string on fail -
-     *               error message like the following array('Event'=>array( array('EVT_ID'=>1,'EVT_name'=>'bob
-     *               party',...), array('EVT_ID'=>2,'EVT_name'=>'llamarama',...),
-     *                                      ...
-     *                                      )
-     *                                      'Venue'=>array(
-     *                                      array('VNU_ID'=>1,'VNU_name'=>'the shack',...),
-     *                                      array('VNU_ID'=>2,'VNU_name'=>'tree house',...),
-     *                                      ...
-     *                                      )
-     *                                      ...
-     *                                      )
-     */
-    public function import_csv_to_model_data_array($path_to_file, $model_name = false, $first_row_is_headers = true)
-    {
-        $multi_dimensional_array = $this->import_csv_to_multi_dimensional_array($path_to_file);
-        if (! $multi_dimensional_array) {
-            return false;
-        }
-        // gotta start somewhere
-        $row = 1;
-        // array to store csv data in
-        $ee_formatted_data = array();
-        // array to store headers (column names)
-        $headers = array();
-        foreach ($multi_dimensional_array as $data) {
-            // if first cell is MODEL, then second cell is the MODEL name
-            if ($data[0] == 'MODEL') {
-                $model_name = $data[1];
-                // don't bother looking for model data in this row. The rest of this
-                // row should be blank
-                // AND pretend this is the first row again
-                $row = 1;
-                // reset headers
-                $headers = array();
-                continue;
-            }
-            if (strpos($data[0], EE_CSV::metadata_header) !== false) {
-                $model_name = EE_CSV::metadata_header;
-                // store like model data, we just won't try importing it etc.
-                $row = 1;
-                continue;
-            }
-
-
-            // how many columns are there?
-            $columns = count($data);
-
-            $model_entry = array();
-            // loop through each column
-            for ($i = 0; $i < $columns; $i++) {
-                // replace csv_enclosures with backslashed quotes
-                $data[ $i ] = str_replace('"""', '\\"', $data[ $i ]);
-                // do we need to grab the column names?
-                if ($row === 1) {
-                    if ($first_row_is_headers) {
-                        // store the column names to use for keys
-                        $column_name = $data[ $i ];
-                        // check it's not blank... sometimes CSV editign programs adda bunch of empty columns onto the end...
-                        if (! $column_name) {
-                            continue;
-                        }
-                        $matches = array();
-                        if ($model_name == EE_CSV::metadata_header) {
-                            $headers[ $i ] = $column_name;
-                        } else {
-                            // now get the db table name from it (the part between square brackets)
-                            $success = preg_match('~(.*)\[(.*)\]~', $column_name, $matches);
-                            if (! $success) {
-                                EE_Error::add_error(
-                                    sprintf(
-                                        __(
-                                            "The column titled %s is invalid for importing. It must be be in the format of 'Nice Name[model_field_name]' in row %s",
-                                            "event_espresso"
-                                        ),
-                                        $column_name,
-                                        implode(",", $data)
-                                    ),
-                                    __FILE__,
-                                    __FUNCTION__,
-                                    __LINE__
-                                );
-                                return false;
-                            }
-                            $headers[ $i ] = $matches[2];
-                        }
-                    } else {
-                        // no column names means our final array will just use counters for keys
-                        $model_entry[ $headers[ $i ] ] = $data[ $i ];
-                        $headers[ $i ] = $i;
-                    }
-                    // and we need to store csv data
-                } else {
-                    // this column isn' ta header, store it if there is a header for it
-                    if (isset($headers[ $i ])) {
-                        $model_entry[ $headers[ $i ] ] = $data[ $i ];
-                    }
-                }
-            }
-            // save the row's data IF it's a non-header-row
-            if (! $first_row_is_headers || ($first_row_is_headers && $row > 1)) {
-                $ee_formatted_data[ $model_name ][] = $model_entry;
-            }
-            // advance to next row
-            $row++;
-        }
-
-        // delete the uploaded file
-        unlink($path_to_file);
-        // echo '<pre style="height:auto;border:2px solid lightblue;">' . print_r( $ee_formatted_data, TRUE ) . '</pre><br /><span style="font-size:10px;font-weight:normal;">' . __FILE__ . '<br />line no: ' . __LINE__ . '</span>';
-        // die();
-
-        // it's good to give back
-        return $ee_formatted_data;
-    }
-
-
-    public function save_csv_to_db($csv_data_array, $model_name = false)
-    {
-        EE_Error::doing_it_wrong(
-            'save_csv_to_db',
-            __(
-                'Function moved to EE_Import and renamed to save_csv_data_array_to_db',
-                'event_espresso'
-            ),
-            '4.6.7'
-        );
-        return EE_Import::instance()->save_csv_data_array_to_db($csv_data_array, $model_name);
-    }
-
-    /**
-     * Sends HTTP headers to indicate that the browser should download a file,
-     * and starts writing the file to PHP's output. Returns the file handle so other functions can
-     * also write to it
-     *
-     * @param string $new_filename the name of the file that the user will download
-     * @return resource, like the results of fopen(), which can be used for fwrite, fputcsv2, etc.
-     */
-    public function begin_sending_csv($filename)
-    {
-        // grab file extension
-        $ext = substr(strrchr($filename, '.'), 1);
-        if ($ext == '.csv' or $ext == '.xls') {
-            str_replace($ext, '', $filename);
-        }
-        $filename .= '.csv';
-
-        // if somebody's been naughty and already started outputting stuff, trash it
-        // and start writing our stuff.
-        if (ob_get_length()) {
-            @ob_flush();
-            @flush();
-            @ob_end_flush();
-        }
-        @ob_start();
-        header("Pragma: public");
-        header("Expires: 0");
-        header("Pragma: no-cache");
-        header("Cache-Control: no-store, no-cache, must-revalidate, post-check=0, pre-check=0");
-        // header("Content-Type: application/force-download");
-        // header("Content-Type: application/octet-stream");
-        // header("Content-Type: application/download");
-        header('Content-disposition: attachment; filename=' . $filename);
-        header("Content-Type: text/csv; charset=utf-8");
-        do_action('AHEE__EE_CSV__begin_sending_csv__headers');
-        echo apply_filters(
-            'FHEE__EE_CSV__begin_sending_csv__start_writing',
-            "\xEF\xBB\xBF"
-        ); // makes excel open it as UTF-8. UTF-8 BOM, see http://stackoverflow.com/a/4440143/2773835
-        $fh = fopen('php://output', 'w');
-        return $fh;
-    }
-
-    /**
-     * Writes some meta data to the CSV as a bunch of columns. Initially we're only
-     * mentioning the version and timezone
-     *
-     * @param resource $filehandle
-     */
-    public function write_metadata_to_csv($filehandle)
-    {
-        $data_row = array(EE_CSV::metadata_header);// do NOT translate because this exact string is used when importing
-        $this->fputcsv2($filehandle, $data_row);
-        $meta_data = array(
-            0 => array(
-                'version'        => espresso_version(),
-                'timezone'       => EEH_DTT_Helper::get_timezone(),
-                'time_of_export' => current_time('mysql'),
-                'site_url'       => site_url(),
-            ),
-        );
-        $this->write_data_array_to_csv($filehandle, $meta_data);
-    }
-
-
-    /**
-     * Writes $data to the csv file open in $filehandle. uses the array indices of $data for column headers
-     *
-     * @param array   $data                 2D array, first numerically-indexed, and next-level-down preferably indexed
-     *                                      by string
-     * @param boolean $add_csv_column_names whether or not we should add the keys in the bottom-most array as a row for
-     *                                      headers in the CSV. Eg, if $data looked like
-     *                                      array(0=>array('EVT_ID'=>1,'EVT_name'=>'monkey'...), 1=>array(...),...))
-     *                                      then the first row we'd write to the CSV would be "EVT_ID,EVT_name,..."
-     * @return boolean if we successfully wrote to the CSV or not. If there's no $data, we consider that a success
-     *                 (because we wrote everything there was...nothing)
-     */
-    public function write_data_array_to_csv($filehandle, $data)
-    {
-
-
-        // determine if $data is actually a 2d array
-        if ($data && is_array($data) && is_array(EEH_Array::get_one_item_from_array($data))) {
-            // make sure top level is numerically indexed,
-
-            if (EEH_Array::is_associative_array($data)) {
-                throw new EE_Error(
-                    sprintf(
-                        __(
-                            "top-level array must be numerically indexed. Does these look like numbers to you? %s",
-                            "event_espresso"
-                        ),
-                        implode(",", array_keys($data))
-                    )
-                );
-            }
-            $item_in_top_level_array = EEH_Array::get_one_item_from_array($data);
-            // now, is the last item in the top-level array of $data an associative or numeric array?
-            if (EEH_Array::is_associative_array($item_in_top_level_array)) {
-                // its associative, so we want to output its keys as column headers
-                $keys = array_keys($item_in_top_level_array);
-                echo $this->fputcsv2($filehandle, $keys);
-            }
-            // start writing data
-            foreach ($data as $data_row) {
-                echo $this->fputcsv2($filehandle, $data_row);
-            }
-            return true;
-        } else {
-            // no data TO write... so we can assume that's a success
-            return true;
-        }
-        // //if 2nd level is indexed by strings, use those as csv column headers (ie, the first row)
-        //
-        //
-        // $no_table = TRUE;
-        //
-        // // loop through data and add each row to the file/stream as csv
-        // foreach ( $data as $model_name => $model_data ) {
-        // // test first row to see if it is data or a model name
-        // $model = EE_Registry::instance();->load_model($model_name);
-        // //if the model really exists,
-        // if ( $model ) {
-        //
-        // // we have a table name
-        // $no_table = FALSE;
-        //
-        // // put the tablename into an array cuz that's how fputcsv rolls
-        // $model_name_row = array( 'MODEL', $model_name );
-        //
-        // // add table name to csv output
-        // echo self::fputcsv2($filehandle, $model_name_row);
-        //
-        // // now get the rest of the data
-        // foreach ( $model_data as $row ) {
-        // // output the row
-        // echo self::fputcsv2($filehandle, $row);
-        // }
-        //
-        // }
-        //
-        // if ( $no_table ) {
-        // // no table so just put the data
-        // echo self::fputcsv2($filehandle, $model_data);
-        // }
-        //
-        // } // END OF foreach ( $data )
-    }
-
-    /**
-     * Should be called after begin_sending_csv(), and one or more write_data_array_to_csv()s.
-     * Calls exit to prevent polluting the CSV file with other junk
-     *
-     * @param resource $fh filehandle where we're writing the CSV to
-     */
-    public function end_sending_csv($fh)
-    {
-        fclose($fh);
-        exit(0);
-    }
-
-    /**
-     * Given an open file, writes all the model data to it in the format the importer expects.
-     * Usually preceded by begin_sending_csv($filename), and followed by end_sending_csv($filehandle).
-     *
-     * @param resource $filehandle
-     * @param array    $model_data_array is assumed to be a 3d array: 1st layer has keys of model names (eg 'Event'),
-     *                                   next layer is numerically indexed to represent each model object (eg, each
-     *                                   individual event), and the last layer has all the attributes o fthat model
-     *                                   object (eg, the event's id, name, etc)
-     * @return boolean success
-     */
-    public function write_model_data_to_csv($filehandle, $model_data_array)
-    {
-        $this->write_metadata_to_csv($filehandle);
-        foreach ($model_data_array as $model_name => $model_instance_arrays) {
-            // first: output a special row stating the model
-            echo $this->fputcsv2($filehandle, array('MODEL', $model_name));
-            // if we have items to put in the CSV, do it normally
-
-            if (! empty($model_instance_arrays)) {
-                $this->write_data_array_to_csv($filehandle, $model_instance_arrays);
-            } else {
-                // echo "no data to write... so just write the headers";
-                // so there's actually NO model objects for that model.
-                // probably still want to show the columns
-                $model = EE_Registry::instance()->load_model($model_name);
-                $column_names = array();
-                foreach ($model->field_settings() as $field) {
-                    $column_names[ $field->get_nicename() . "[" . $field->get_name() . "]" ] = null;
-                }
-                $this->write_data_array_to_csv($filehandle, array($column_names));
-            }
-        }
-    }
-
-    /**
-     * Writes the CSV file to the output buffer, with rows corresponding to $model_data_array,
-     * and dies (in order to avoid other plugins from messing up the csv output)
-     *
-     * @param string $filename         the filename you want to give the file
-     * @param array  $model_data_array 3d array, as described in EE_CSV::write_model_data_to_csv()
-     * @return bool | void writes CSV file to output and dies
-     */
-    public function export_multiple_model_data_to_csv($filename, $model_data_array)
-    {
-        $filehandle = $this->begin_sending_csv($filename);
-        $this->write_model_data_to_csv($filehandle, $model_data_array);
-        $this->end_sending_csv($filehandle);
-    }
-
-    /**
-     * @Export contents of an array to csv file
-     * @access public
-     * @param array  $data     - the array of data to be converted to csv and exported
-     * @param string $filename - name for newly created csv file
-     * @return TRUE on success, FALSE on fail
-     */
-    public function export_array_to_csv($data = false, $filename = false)
-    {
-
-        // no data file?? get outta here
-        if (! $data or ! is_array($data) or empty($data)) {
-            return false;
-        }
-
-        // no filename?? get outta here
-        if (! $filename) {
-            return false;
-        }
-
-
-        // somebody told me i might need this ???
-        global $wpdb;
-        $prefix = $wpdb->prefix;
-
-
-        $fh = $this->begin_sending_csv($filename);
-
-
-        $this->end_sending_csv($fh);
-    }
-
-
-    /**
-     * @Determine the maximum upload file size based on php.ini settings
-     * @access    public
-     * @param int $percent_of_max - desired percentage of the max upload_mb
-     * @return int KB
-     */
-    public function get_max_upload_size($percent_of_max = false)
-    {
-
-        $max_upload = (int) (ini_get('upload_max_filesize'));
-        $max_post = (int) (ini_get('post_max_size'));
-        $memory_limit = (int) (ini_get('memory_limit'));
-
-        // determine the smallest of the three values from above
-        $upload_mb = min($max_upload, $max_post, $memory_limit);
-
-        // convert MB to KB
-        $upload_mb = $upload_mb * 1024;
-
-        // don't want the full monty? then reduce the max uplaod size
-        if ($percent_of_max) {
-            // is percent_of_max like this -> 50 or like this -> 0.50 ?
-            if ($percent_of_max > 1) {
-                // chnages 50 to 0.50
-                $percent_of_max = $percent_of_max / 100;
-            }
-            // make upload_mb a percentage of the max upload_mb
-            $upload_mb = $upload_mb * $percent_of_max;
-        }
-
-        return $upload_mb;
-    }
-
-
-    /**
-     * @Drop   in replacement for PHP's fputcsv function - but this one works!!!
-     * @access private
-     * @param resource $fh         - file handle - what we are writing to
-     * @param array    $row        - individual row of csv data
-     * @param string   $delimiter  - csv delimiter
-     * @param string   $enclosure  - csv enclosure
-     * @param string   $mysql_null - allows php NULL to be overridden with MySQl's insertable NULL value
-     * @return void
-     */
-    private function fputcsv2($fh, array $row, $delimiter = ',', $enclosure = '"', $mysql_null = false)
-    {
-        // Allow user to filter the csv delimiter and enclosure for other countries csv standards
-        $delimiter = apply_filters('FHEE__EE_CSV__fputcsv2__delimiter', $delimiter);
-        $enclosure = apply_filters('FHEE__EE_CSV__fputcsv2__enclosure', $enclosure);
-
-        $delimiter_esc = preg_quote($delimiter, '/');
-        $enclosure_esc = preg_quote($enclosure, '/');
-
-        $output = array();
-        foreach ($row as $field_value) {
-            if (is_object($field_value) || is_array($field_value)) {
-                $field_value = serialize($field_value);
-            }
-            if ($field_value === null && $mysql_null) {
-                $output[] = 'NULL';
-                continue;
-            }
-
-            $output[] = preg_match("/(?:${delimiter_esc}|${enclosure_esc}|\s)/", $field_value) ?
-                ($enclosure . str_replace($enclosure, $enclosure . $enclosure, $field_value) . $enclosure)
-                : $field_value;
-        }
-
-        fwrite($fh, join($delimiter, $output) . PHP_EOL);
-    }
-
-
-    // /**
-    //  * @CSV    Import / Export messages
-    //  * @access public
-    //  * @return void
-    //  */
-    // public function csv_admin_notices()
-    // {
-    //
-    //     // We play both kinds of music here! Country AND Western! - err... I mean, cycle through both types of notices
-    //     foreach (array('updates', 'errors') as $type) {
-    //
-    //         // if particular notice type is not empty, then "You've got Mail"
-    //         if (! empty($this->_notices[ $type ])) {
-    //
-    //             // is it an update or an error ?
-    //             $msg_class = $type == 'updates' ? 'updated' : 'error';
-    //             echo '<div id="message" class="' . $msg_class . '">';
-    //             // display each notice, however many that may be
-    //             foreach ($this->_notices[ $type ] as $message) {
-    //                 echo '<p>' . $message . '</p>';
-    //             }
-    //             // wrap it up
-    //             echo '</div>';
-    //         }
-    //     }
-    // }
-
-    /**
-     * Gets the date format to use in teh csv. filterable
-     *
-     * @param string $current_format
-     * @return string
-     */
-    public function get_date_format_for_csv($current_format = null)
-    {
-        return apply_filters('FHEE__EE_CSV__get_date_format_for_csv__format', 'Y-m-d', $current_format);
-    }
-
-    /**
-     * Gets the time format we want to use in CSV reports. Filterable
-     *
-     * @param string $current_format
-     * @return string
-     */
-    public function get_time_format_for_csv($current_format = null)
-    {
-        return apply_filters('FHEE__EE_CSV__get_time_format_for_csv__format', 'H:i:s', $current_format);
-    }
+	// instance of the EE_CSV object
+	private static $_instance = null;
+
+
+	// multidimensional array to store update & error messages
+	// var $_notices = array( 'updates' => array(), 'errors' => array() );
+
+
+	private $_primary_keys;
+
+	/**
+	 *
+	 * @var EE_Registry
+	 */
+	private $EE;
+	/**
+	 * string used for 1st cell in exports, which indicates that the following 2 rows will be metadata keys and values
+	 */
+	const metadata_header = 'Event Espresso Export Meta Data';
+
+	/**
+	 *        private constructor to prevent direct creation
+	 *
+	 * @Constructor
+	 * @access private
+	 * @return void
+	 */
+	private function __construct()
+	{
+		global $wpdb;
+
+		$this->_primary_keys = array(
+			$wpdb->prefix . 'esp_answer'                  => array('ANS_ID'),
+			$wpdb->prefix . 'esp_attendee'                => array('ATT_ID'),
+			$wpdb->prefix . 'esp_datetime'                => array('DTT_ID'),
+			$wpdb->prefix . 'esp_event_question_group'    => array('EQG_ID'),
+			$wpdb->prefix . 'esp_message_template'        => array('MTP_ID'),
+			$wpdb->prefix . 'esp_payment'                 => array('PAY_ID'),
+			$wpdb->prefix . 'esp_price'                   => array('PRC_ID'),
+			$wpdb->prefix . 'esp_price_type'              => array('PRT_ID'),
+			$wpdb->prefix . 'esp_question'                => array('QST_ID'),
+			$wpdb->prefix . 'esp_question_group'          => array('QSG_ID'),
+			$wpdb->prefix . 'esp_question_group_question' => array('QGQ_ID'),
+			$wpdb->prefix . 'esp_question_option'         => array('QSO_ID'),
+			$wpdb->prefix . 'esp_registration'            => array('REG_ID'),
+			$wpdb->prefix . 'esp_status'                  => array('STS_ID'),
+			$wpdb->prefix . 'esp_transaction'             => array('TXN_ID'),
+			$wpdb->prefix . 'esp_transaction'             => array('TXN_ID'),
+			$wpdb->prefix . 'events_detail'               => array('id'),
+			$wpdb->prefix . 'events_category_detail'      => array('id'),
+			$wpdb->prefix . 'events_category_rel'         => array('id'),
+			$wpdb->prefix . 'events_venue'                => array('id'),
+			$wpdb->prefix . 'events_venue_rel'            => array('emeta_id'),
+			$wpdb->prefix . 'events_locale'               => array('id'),
+			$wpdb->prefix . 'events_locale_rel'           => array('id'),
+			$wpdb->prefix . 'events_personnel'            => array('id'),
+			$wpdb->prefix . 'events_personnel_rel'        => array('id'),
+		);
+	}
+
+
+	/**
+	 *        @ singleton method used to instantiate class object
+	 *        @ access public
+	 *
+	 * @return EE_CSV
+	 */
+	public static function instance()
+	{
+		// check if class object is instantiated
+		if (self::$_instance === null or ! is_object(self::$_instance) or ! (self::$_instance instanceof EE_CSV)) {
+			self::$_instance = new self();
+		}
+		return self::$_instance;
+	}
+
+	/**
+	 * Opens a unicode or utf file (normal file_get_contents has difficulty readin ga unicode file. @see
+	 * http://stackoverflow.com/questions/15092764/how-to-read-unicode-text-file-in-php
+	 *
+	 * @param string $file_path
+	 * @return string
+	 * @throws EE_Error
+	 */
+	private function read_unicode_file($file_path)
+	{
+		$fc = "";
+		$fh = fopen($file_path, "rb");
+		if (! $fh) {
+			throw new EE_Error(sprintf(__("Cannot open file for read: %s<br>\n", 'event_espresso'), $file_path));
+		}
+		$flen = filesize($file_path);
+		$bc = fread($fh, $flen);
+		for ($i = 0; $i < $flen; $i++) {
+			$c = substr($bc, $i, 1);
+			if ((ord($c) != 0) && (ord($c) != 13)) {
+				$fc = $fc . $c;
+			}
+		}
+		if ((ord(substr($fc, 0, 1)) == 255) && (ord(substr($fc, 1, 1)) == 254)) {
+			$fc = substr($fc, 2);
+		}
+		return ($fc);
+	}
+
+
+	/**
+	 * Generic CSV-functionality to turn an entire CSV file into a single array that's
+	 * NOT in a specific format to EE. It's just a 2-level array, with top-level arrays
+	 * representing each row in the CSV file, and the second-level arrays being each column in that row
+	 *
+	 * @param string $path_to_file
+	 * @return array of arrays. Top-level array has rows, second-level array has each item
+	 */
+	public function import_csv_to_multi_dimensional_array($path_to_file)
+	{
+		// needed to deal with Mac line endings
+		ini_set('auto_detect_line_endings', true);
+
+		// because fgetcsv does not correctly deal with backslashed quotes such as \"
+		// we'll read the file into a string
+		$file_contents = $this->read_unicode_file($path_to_file);
+		// replace backslashed quotes with CSV enclosures
+		$file_contents = str_replace('\\"', '"""', $file_contents);
+		// HEY YOU! PUT THAT FILE BACK!!!
+		file_put_contents($path_to_file, $file_contents);
+
+		if (($file_handle = fopen($path_to_file, "r")) !== false) {
+			# Set the parent multidimensional array key to 0.
+			$nn = 0;
+			$csvarray = array();
+
+			// in PHP 5.3 fgetcsv accepts a 5th parameter, but the pre 5.3 versions of fgetcsv choke if passed more than 4 - is that crazy or what?
+			if (version_compare(PHP_VERSION, '5.3.0') < 0) {
+				//  PHP 5.2- version
+				// loop through each row of the file
+				while (($data = fgetcsv($file_handle, 0, ',', '"')) !== false) {
+					$csvarray[] = $data;
+				}
+			} else {
+				// loop through each row of the file
+				while (($data = fgetcsv($file_handle, 0, ',', '"', '\\')) !== false) {
+					$csvarray[] = $data;
+				}
+			}
+			# Close the File.
+			fclose($file_handle);
+			return $csvarray;
+		} else {
+			EE_Error::add_error(
+				sprintf(__("An error occurred - the file: %s could not opened.", "event_espresso"), $path_to_file),
+				__FILE__,
+				__FUNCTION__,
+				__LINE__
+			);
+			return false;
+		}
+	}
+
+
+	/**
+	 * @Import contents of csv file and store values in an array to be manipulated by other functions
+	 * @access public
+	 * @param string  $path_to_file         - the csv file to be imported including the path to it's location.
+	 *                                      If $model_name is provided, assumes that each row in the CSV represents a
+	 *                                      model object for that model If $model_name ISN'T provided, assumes that
+	 *                                      before model object data, there is a row where the first entry is simply
+	 *                                      'MODEL', and next entry is the model's name, (untranslated) like Event, and
+	 *                                      then maybe a row of headers, and then the model data. Eg.
+	 *                                      '<br>MODEL,Event,<br>EVT_ID,EVT_name,...<br>1,Monkey
+	 *                                      Party,...<br>2,Llamarama,...<br>MODEL,Venue,<br>VNU_ID,VNU_name<br>1,The
+	 *                                      Forest
+	 * @param string  $model_name           model name if we know what model we're importing
+	 * @param boolean $first_row_is_headers - whether the first row of data is headers or not - TRUE = headers, FALSE =
+	 *                                      data
+	 * @return mixed - array on success - multi dimensional with headers as keys (if headers exist) OR string on fail -
+	 *               error message like the following array('Event'=>array( array('EVT_ID'=>1,'EVT_name'=>'bob
+	 *               party',...), array('EVT_ID'=>2,'EVT_name'=>'llamarama',...),
+	 *                                      ...
+	 *                                      )
+	 *                                      'Venue'=>array(
+	 *                                      array('VNU_ID'=>1,'VNU_name'=>'the shack',...),
+	 *                                      array('VNU_ID'=>2,'VNU_name'=>'tree house',...),
+	 *                                      ...
+	 *                                      )
+	 *                                      ...
+	 *                                      )
+	 */
+	public function import_csv_to_model_data_array($path_to_file, $model_name = false, $first_row_is_headers = true)
+	{
+		$multi_dimensional_array = $this->import_csv_to_multi_dimensional_array($path_to_file);
+		if (! $multi_dimensional_array) {
+			return false;
+		}
+		// gotta start somewhere
+		$row = 1;
+		// array to store csv data in
+		$ee_formatted_data = array();
+		// array to store headers (column names)
+		$headers = array();
+		foreach ($multi_dimensional_array as $data) {
+			// if first cell is MODEL, then second cell is the MODEL name
+			if ($data[0] == 'MODEL') {
+				$model_name = $data[1];
+				// don't bother looking for model data in this row. The rest of this
+				// row should be blank
+				// AND pretend this is the first row again
+				$row = 1;
+				// reset headers
+				$headers = array();
+				continue;
+			}
+			if (strpos($data[0], EE_CSV::metadata_header) !== false) {
+				$model_name = EE_CSV::metadata_header;
+				// store like model data, we just won't try importing it etc.
+				$row = 1;
+				continue;
+			}
+
+
+			// how many columns are there?
+			$columns = count($data);
+
+			$model_entry = array();
+			// loop through each column
+			for ($i = 0; $i < $columns; $i++) {
+				// replace csv_enclosures with backslashed quotes
+				$data[ $i ] = str_replace('"""', '\\"', $data[ $i ]);
+				// do we need to grab the column names?
+				if ($row === 1) {
+					if ($first_row_is_headers) {
+						// store the column names to use for keys
+						$column_name = $data[ $i ];
+						// check it's not blank... sometimes CSV editign programs adda bunch of empty columns onto the end...
+						if (! $column_name) {
+							continue;
+						}
+						$matches = array();
+						if ($model_name == EE_CSV::metadata_header) {
+							$headers[ $i ] = $column_name;
+						} else {
+							// now get the db table name from it (the part between square brackets)
+							$success = preg_match('~(.*)\[(.*)\]~', $column_name, $matches);
+							if (! $success) {
+								EE_Error::add_error(
+									sprintf(
+										__(
+											"The column titled %s is invalid for importing. It must be be in the format of 'Nice Name[model_field_name]' in row %s",
+											"event_espresso"
+										),
+										$column_name,
+										implode(",", $data)
+									),
+									__FILE__,
+									__FUNCTION__,
+									__LINE__
+								);
+								return false;
+							}
+							$headers[ $i ] = $matches[2];
+						}
+					} else {
+						// no column names means our final array will just use counters for keys
+						$model_entry[ $headers[ $i ] ] = $data[ $i ];
+						$headers[ $i ] = $i;
+					}
+					// and we need to store csv data
+				} else {
+					// this column isn' ta header, store it if there is a header for it
+					if (isset($headers[ $i ])) {
+						$model_entry[ $headers[ $i ] ] = $data[ $i ];
+					}
+				}
+			}
+			// save the row's data IF it's a non-header-row
+			if (! $first_row_is_headers || ($first_row_is_headers && $row > 1)) {
+				$ee_formatted_data[ $model_name ][] = $model_entry;
+			}
+			// advance to next row
+			$row++;
+		}
+
+		// delete the uploaded file
+		unlink($path_to_file);
+		// echo '<pre style="height:auto;border:2px solid lightblue;">' . print_r( $ee_formatted_data, TRUE ) . '</pre><br /><span style="font-size:10px;font-weight:normal;">' . __FILE__ . '<br />line no: ' . __LINE__ . '</span>';
+		// die();
+
+		// it's good to give back
+		return $ee_formatted_data;
+	}
+
+
+	public function save_csv_to_db($csv_data_array, $model_name = false)
+	{
+		EE_Error::doing_it_wrong(
+			'save_csv_to_db',
+			__(
+				'Function moved to EE_Import and renamed to save_csv_data_array_to_db',
+				'event_espresso'
+			),
+			'4.6.7'
+		);
+		return EE_Import::instance()->save_csv_data_array_to_db($csv_data_array, $model_name);
+	}
+
+	/**
+	 * Sends HTTP headers to indicate that the browser should download a file,
+	 * and starts writing the file to PHP's output. Returns the file handle so other functions can
+	 * also write to it
+	 *
+	 * @param string $new_filename the name of the file that the user will download
+	 * @return resource, like the results of fopen(), which can be used for fwrite, fputcsv2, etc.
+	 */
+	public function begin_sending_csv($filename)
+	{
+		// grab file extension
+		$ext = substr(strrchr($filename, '.'), 1);
+		if ($ext == '.csv' or $ext == '.xls') {
+			str_replace($ext, '', $filename);
+		}
+		$filename .= '.csv';
+
+		// if somebody's been naughty and already started outputting stuff, trash it
+		// and start writing our stuff.
+		if (ob_get_length()) {
+			@ob_flush();
+			@flush();
+			@ob_end_flush();
+		}
+		@ob_start();
+		header("Pragma: public");
+		header("Expires: 0");
+		header("Pragma: no-cache");
+		header("Cache-Control: no-store, no-cache, must-revalidate, post-check=0, pre-check=0");
+		// header("Content-Type: application/force-download");
+		// header("Content-Type: application/octet-stream");
+		// header("Content-Type: application/download");
+		header('Content-disposition: attachment; filename=' . $filename);
+		header("Content-Type: text/csv; charset=utf-8");
+		do_action('AHEE__EE_CSV__begin_sending_csv__headers');
+		echo apply_filters(
+			'FHEE__EE_CSV__begin_sending_csv__start_writing',
+			"\xEF\xBB\xBF"
+		); // makes excel open it as UTF-8. UTF-8 BOM, see http://stackoverflow.com/a/4440143/2773835
+		$fh = fopen('php://output', 'w');
+		return $fh;
+	}
+
+	/**
+	 * Writes some meta data to the CSV as a bunch of columns. Initially we're only
+	 * mentioning the version and timezone
+	 *
+	 * @param resource $filehandle
+	 */
+	public function write_metadata_to_csv($filehandle)
+	{
+		$data_row = array(EE_CSV::metadata_header);// do NOT translate because this exact string is used when importing
+		$this->fputcsv2($filehandle, $data_row);
+		$meta_data = array(
+			0 => array(
+				'version'        => espresso_version(),
+				'timezone'       => EEH_DTT_Helper::get_timezone(),
+				'time_of_export' => current_time('mysql'),
+				'site_url'       => site_url(),
+			),
+		);
+		$this->write_data_array_to_csv($filehandle, $meta_data);
+	}
+
+
+	/**
+	 * Writes $data to the csv file open in $filehandle. uses the array indices of $data for column headers
+	 *
+	 * @param array   $data                 2D array, first numerically-indexed, and next-level-down preferably indexed
+	 *                                      by string
+	 * @param boolean $add_csv_column_names whether or not we should add the keys in the bottom-most array as a row for
+	 *                                      headers in the CSV. Eg, if $data looked like
+	 *                                      array(0=>array('EVT_ID'=>1,'EVT_name'=>'monkey'...), 1=>array(...),...))
+	 *                                      then the first row we'd write to the CSV would be "EVT_ID,EVT_name,..."
+	 * @return boolean if we successfully wrote to the CSV or not. If there's no $data, we consider that a success
+	 *                 (because we wrote everything there was...nothing)
+	 */
+	public function write_data_array_to_csv($filehandle, $data)
+	{
+
+
+		// determine if $data is actually a 2d array
+		if ($data && is_array($data) && is_array(EEH_Array::get_one_item_from_array($data))) {
+			// make sure top level is numerically indexed,
+
+			if (EEH_Array::is_associative_array($data)) {
+				throw new EE_Error(
+					sprintf(
+						__(
+							"top-level array must be numerically indexed. Does these look like numbers to you? %s",
+							"event_espresso"
+						),
+						implode(",", array_keys($data))
+					)
+				);
+			}
+			$item_in_top_level_array = EEH_Array::get_one_item_from_array($data);
+			// now, is the last item in the top-level array of $data an associative or numeric array?
+			if (EEH_Array::is_associative_array($item_in_top_level_array)) {
+				// its associative, so we want to output its keys as column headers
+				$keys = array_keys($item_in_top_level_array);
+				echo $this->fputcsv2($filehandle, $keys);
+			}
+			// start writing data
+			foreach ($data as $data_row) {
+				echo $this->fputcsv2($filehandle, $data_row);
+			}
+			return true;
+		} else {
+			// no data TO write... so we can assume that's a success
+			return true;
+		}
+		// //if 2nd level is indexed by strings, use those as csv column headers (ie, the first row)
+		//
+		//
+		// $no_table = TRUE;
+		//
+		// // loop through data and add each row to the file/stream as csv
+		// foreach ( $data as $model_name => $model_data ) {
+		// // test first row to see if it is data or a model name
+		// $model = EE_Registry::instance();->load_model($model_name);
+		// //if the model really exists,
+		// if ( $model ) {
+		//
+		// // we have a table name
+		// $no_table = FALSE;
+		//
+		// // put the tablename into an array cuz that's how fputcsv rolls
+		// $model_name_row = array( 'MODEL', $model_name );
+		//
+		// // add table name to csv output
+		// echo self::fputcsv2($filehandle, $model_name_row);
+		//
+		// // now get the rest of the data
+		// foreach ( $model_data as $row ) {
+		// // output the row
+		// echo self::fputcsv2($filehandle, $row);
+		// }
+		//
+		// }
+		//
+		// if ( $no_table ) {
+		// // no table so just put the data
+		// echo self::fputcsv2($filehandle, $model_data);
+		// }
+		//
+		// } // END OF foreach ( $data )
+	}
+
+	/**
+	 * Should be called after begin_sending_csv(), and one or more write_data_array_to_csv()s.
+	 * Calls exit to prevent polluting the CSV file with other junk
+	 *
+	 * @param resource $fh filehandle where we're writing the CSV to
+	 */
+	public function end_sending_csv($fh)
+	{
+		fclose($fh);
+		exit(0);
+	}
+
+	/**
+	 * Given an open file, writes all the model data to it in the format the importer expects.
+	 * Usually preceded by begin_sending_csv($filename), and followed by end_sending_csv($filehandle).
+	 *
+	 * @param resource $filehandle
+	 * @param array    $model_data_array is assumed to be a 3d array: 1st layer has keys of model names (eg 'Event'),
+	 *                                   next layer is numerically indexed to represent each model object (eg, each
+	 *                                   individual event), and the last layer has all the attributes o fthat model
+	 *                                   object (eg, the event's id, name, etc)
+	 * @return boolean success
+	 */
+	public function write_model_data_to_csv($filehandle, $model_data_array)
+	{
+		$this->write_metadata_to_csv($filehandle);
+		foreach ($model_data_array as $model_name => $model_instance_arrays) {
+			// first: output a special row stating the model
+			echo $this->fputcsv2($filehandle, array('MODEL', $model_name));
+			// if we have items to put in the CSV, do it normally
+
+			if (! empty($model_instance_arrays)) {
+				$this->write_data_array_to_csv($filehandle, $model_instance_arrays);
+			} else {
+				// echo "no data to write... so just write the headers";
+				// so there's actually NO model objects for that model.
+				// probably still want to show the columns
+				$model = EE_Registry::instance()->load_model($model_name);
+				$column_names = array();
+				foreach ($model->field_settings() as $field) {
+					$column_names[ $field->get_nicename() . "[" . $field->get_name() . "]" ] = null;
+				}
+				$this->write_data_array_to_csv($filehandle, array($column_names));
+			}
+		}
+	}
+
+	/**
+	 * Writes the CSV file to the output buffer, with rows corresponding to $model_data_array,
+	 * and dies (in order to avoid other plugins from messing up the csv output)
+	 *
+	 * @param string $filename         the filename you want to give the file
+	 * @param array  $model_data_array 3d array, as described in EE_CSV::write_model_data_to_csv()
+	 * @return bool | void writes CSV file to output and dies
+	 */
+	public function export_multiple_model_data_to_csv($filename, $model_data_array)
+	{
+		$filehandle = $this->begin_sending_csv($filename);
+		$this->write_model_data_to_csv($filehandle, $model_data_array);
+		$this->end_sending_csv($filehandle);
+	}
+
+	/**
+	 * @Export contents of an array to csv file
+	 * @access public
+	 * @param array  $data     - the array of data to be converted to csv and exported
+	 * @param string $filename - name for newly created csv file
+	 * @return TRUE on success, FALSE on fail
+	 */
+	public function export_array_to_csv($data = false, $filename = false)
+	{
+
+		// no data file?? get outta here
+		if (! $data or ! is_array($data) or empty($data)) {
+			return false;
+		}
+
+		// no filename?? get outta here
+		if (! $filename) {
+			return false;
+		}
+
+
+		// somebody told me i might need this ???
+		global $wpdb;
+		$prefix = $wpdb->prefix;
+
+
+		$fh = $this->begin_sending_csv($filename);
+
+
+		$this->end_sending_csv($fh);
+	}
+
+
+	/**
+	 * @Determine the maximum upload file size based on php.ini settings
+	 * @access    public
+	 * @param int $percent_of_max - desired percentage of the max upload_mb
+	 * @return int KB
+	 */
+	public function get_max_upload_size($percent_of_max = false)
+	{
+
+		$max_upload = (int) (ini_get('upload_max_filesize'));
+		$max_post = (int) (ini_get('post_max_size'));
+		$memory_limit = (int) (ini_get('memory_limit'));
+
+		// determine the smallest of the three values from above
+		$upload_mb = min($max_upload, $max_post, $memory_limit);
+
+		// convert MB to KB
+		$upload_mb = $upload_mb * 1024;
+
+		// don't want the full monty? then reduce the max uplaod size
+		if ($percent_of_max) {
+			// is percent_of_max like this -> 50 or like this -> 0.50 ?
+			if ($percent_of_max > 1) {
+				// chnages 50 to 0.50
+				$percent_of_max = $percent_of_max / 100;
+			}
+			// make upload_mb a percentage of the max upload_mb
+			$upload_mb = $upload_mb * $percent_of_max;
+		}
+
+		return $upload_mb;
+	}
+
+
+	/**
+	 * @Drop   in replacement for PHP's fputcsv function - but this one works!!!
+	 * @access private
+	 * @param resource $fh         - file handle - what we are writing to
+	 * @param array    $row        - individual row of csv data
+	 * @param string   $delimiter  - csv delimiter
+	 * @param string   $enclosure  - csv enclosure
+	 * @param string   $mysql_null - allows php NULL to be overridden with MySQl's insertable NULL value
+	 * @return void
+	 */
+	private function fputcsv2($fh, array $row, $delimiter = ',', $enclosure = '"', $mysql_null = false)
+	{
+		// Allow user to filter the csv delimiter and enclosure for other countries csv standards
+		$delimiter = apply_filters('FHEE__EE_CSV__fputcsv2__delimiter', $delimiter);
+		$enclosure = apply_filters('FHEE__EE_CSV__fputcsv2__enclosure', $enclosure);
+
+		$delimiter_esc = preg_quote($delimiter, '/');
+		$enclosure_esc = preg_quote($enclosure, '/');
+
+		$output = array();
+		foreach ($row as $field_value) {
+			if (is_object($field_value) || is_array($field_value)) {
+				$field_value = serialize($field_value);
+			}
+			if ($field_value === null && $mysql_null) {
+				$output[] = 'NULL';
+				continue;
+			}
+
+			$output[] = preg_match("/(?:${delimiter_esc}|${enclosure_esc}|\s)/", $field_value) ?
+				($enclosure . str_replace($enclosure, $enclosure . $enclosure, $field_value) . $enclosure)
+				: $field_value;
+		}
+
+		fwrite($fh, join($delimiter, $output) . PHP_EOL);
+	}
+
+
+	// /**
+	//  * @CSV    Import / Export messages
+	//  * @access public
+	//  * @return void
+	//  */
+	// public function csv_admin_notices()
+	// {
+	//
+	//     // We play both kinds of music here! Country AND Western! - err... I mean, cycle through both types of notices
+	//     foreach (array('updates', 'errors') as $type) {
+	//
+	//         // if particular notice type is not empty, then "You've got Mail"
+	//         if (! empty($this->_notices[ $type ])) {
+	//
+	//             // is it an update or an error ?
+	//             $msg_class = $type == 'updates' ? 'updated' : 'error';
+	//             echo '<div id="message" class="' . $msg_class . '">';
+	//             // display each notice, however many that may be
+	//             foreach ($this->_notices[ $type ] as $message) {
+	//                 echo '<p>' . $message . '</p>';
+	//             }
+	//             // wrap it up
+	//             echo '</div>';
+	//         }
+	//     }
+	// }
+
+	/**
+	 * Gets the date format to use in teh csv. filterable
+	 *
+	 * @param string $current_format
+	 * @return string
+	 */
+	public function get_date_format_for_csv($current_format = null)
+	{
+		return apply_filters('FHEE__EE_CSV__get_date_format_for_csv__format', 'Y-m-d', $current_format);
+	}
+
+	/**
+	 * Gets the time format we want to use in CSV reports. Filterable
+	 *
+	 * @param string $current_format
+	 * @return string
+	 */
+	public function get_time_format_for_csv($current_format = null)
+	{
+		return apply_filters('FHEE__EE_CSV__get_time_format_for_csv__format', 'H:i:s', $current_format);
+	}
 }

Spacing +48 added lines, -48 removed lines

@@ -48,31 +48,31 @@ 
         global $wpdb;
 
         $this->_primary_keys = array(
-            $wpdb->prefix . 'esp_answer'                  => array('ANS_ID'),
-            $wpdb->prefix . 'esp_attendee'                => array('ATT_ID'),
-            $wpdb->prefix . 'esp_datetime'                => array('DTT_ID'),
-            $wpdb->prefix . 'esp_event_question_group'    => array('EQG_ID'),
-            $wpdb->prefix . 'esp_message_template'        => array('MTP_ID'),
-            $wpdb->prefix . 'esp_payment'                 => array('PAY_ID'),
-            $wpdb->prefix . 'esp_price'                   => array('PRC_ID'),
-            $wpdb->prefix . 'esp_price_type'              => array('PRT_ID'),
-            $wpdb->prefix . 'esp_question'                => array('QST_ID'),
-            $wpdb->prefix . 'esp_question_group'          => array('QSG_ID'),
-            $wpdb->prefix . 'esp_question_group_question' => array('QGQ_ID'),
-            $wpdb->prefix . 'esp_question_option'         => array('QSO_ID'),
-            $wpdb->prefix . 'esp_registration'            => array('REG_ID'),
-            $wpdb->prefix . 'esp_status'                  => array('STS_ID'),
-            $wpdb->prefix . 'esp_transaction'             => array('TXN_ID'),
-            $wpdb->prefix . 'esp_transaction'             => array('TXN_ID'),
-            $wpdb->prefix . 'events_detail'               => array('id'),
-            $wpdb->prefix . 'events_category_detail'      => array('id'),
-            $wpdb->prefix . 'events_category_rel'         => array('id'),
-            $wpdb->prefix . 'events_venue'                => array('id'),
-            $wpdb->prefix . 'events_venue_rel'            => array('emeta_id'),
-            $wpdb->prefix . 'events_locale'               => array('id'),
-            $wpdb->prefix . 'events_locale_rel'           => array('id'),
-            $wpdb->prefix . 'events_personnel'            => array('id'),
-            $wpdb->prefix . 'events_personnel_rel'        => array('id'),
+            $wpdb->prefix.'esp_answer'                  => array('ANS_ID'),
+            $wpdb->prefix.'esp_attendee'                => array('ATT_ID'),
+            $wpdb->prefix.'esp_datetime'                => array('DTT_ID'),
+            $wpdb->prefix.'esp_event_question_group'    => array('EQG_ID'),
+            $wpdb->prefix.'esp_message_template'        => array('MTP_ID'),
+            $wpdb->prefix.'esp_payment'                 => array('PAY_ID'),
+            $wpdb->prefix.'esp_price'                   => array('PRC_ID'),
+            $wpdb->prefix.'esp_price_type'              => array('PRT_ID'),
+            $wpdb->prefix.'esp_question'                => array('QST_ID'),
+            $wpdb->prefix.'esp_question_group'          => array('QSG_ID'),
+            $wpdb->prefix.'esp_question_group_question' => array('QGQ_ID'),
+            $wpdb->prefix.'esp_question_option'         => array('QSO_ID'),
+            $wpdb->prefix.'esp_registration'            => array('REG_ID'),
+            $wpdb->prefix.'esp_status'                  => array('STS_ID'),
+            $wpdb->prefix.'esp_transaction'             => array('TXN_ID'),
+            $wpdb->prefix.'esp_transaction'             => array('TXN_ID'),
+            $wpdb->prefix.'events_detail'               => array('id'),
+            $wpdb->prefix.'events_category_detail'      => array('id'),
+            $wpdb->prefix.'events_category_rel'         => array('id'),
+            $wpdb->prefix.'events_venue'                => array('id'),
+            $wpdb->prefix.'events_venue_rel'            => array('emeta_id'),
+            $wpdb->prefix.'events_locale'               => array('id'),
+            $wpdb->prefix.'events_locale_rel'           => array('id'),
+            $wpdb->prefix.'events_personnel'            => array('id'),
+            $wpdb->prefix.'events_personnel_rel'        => array('id'),
         );
     }
 
@@ -104,7 +104,7 @@ 
     {
         $fc = "";
         $fh = fopen($file_path, "rb");
-        if (! $fh) {
+        if ( ! $fh) {
             throw new EE_Error(sprintf(__("Cannot open file for read: %s<br>\n", 'event_espresso'), $file_path));
         }
         $flen = filesize($file_path);
@@ -112,7 +112,7 @@ 
         for ($i = 0; $i < $flen; $i++) {
             $c = substr($bc, $i, 1);
             if ((ord($c) != 0) && (ord($c) != 13)) {
-                $fc = $fc . $c;
+                $fc = $fc.$c;
             }
         }
         if ((ord(substr($fc, 0, 1)) == 255) && (ord(substr($fc, 1, 1)) == 254)) {
@@ -207,7 +207,7 @@ 
     public function import_csv_to_model_data_array($path_to_file, $model_name = false, $first_row_is_headers = true)
     {
         $multi_dimensional_array = $this->import_csv_to_multi_dimensional_array($path_to_file);
-        if (! $multi_dimensional_array) {
+        if ( ! $multi_dimensional_array) {
             return false;
         }
         // gotta start somewhere
@@ -243,23 +243,23 @@ 
             // loop through each column
             for ($i = 0; $i < $columns; $i++) {
                 // replace csv_enclosures with backslashed quotes
-                $data[ $i ] = str_replace('"""', '\\"', $data[ $i ]);
+                $data[$i] = str_replace('"""', '\\"', $data[$i]);
                 // do we need to grab the column names?
                 if ($row === 1) {
                     if ($first_row_is_headers) {
                         // store the column names to use for keys
-                        $column_name = $data[ $i ];
+                        $column_name = $data[$i];
                         // check it's not blank... sometimes CSV editign programs adda bunch of empty columns onto the end...
-                        if (! $column_name) {
+                        if ( ! $column_name) {
                             continue;
                         }
                         $matches = array();
                         if ($model_name == EE_CSV::metadata_header) {
-                            $headers[ $i ] = $column_name;
+                            $headers[$i] = $column_name;
                         } else {
                             // now get the db table name from it (the part between square brackets)
                             $success = preg_match('~(.*)\[(.*)\]~', $column_name, $matches);
-                            if (! $success) {
+                            if ( ! $success) {
                                 EE_Error::add_error(
                                     sprintf(
                                         __(
@@ -275,24 +275,24 @@ 
                                 );
                                 return false;
                             }
-                            $headers[ $i ] = $matches[2];
+                            $headers[$i] = $matches[2];
                         }
                     } else {
                         // no column names means our final array will just use counters for keys
-                        $model_entry[ $headers[ $i ] ] = $data[ $i ];
-                        $headers[ $i ] = $i;
+                        $model_entry[$headers[$i]] = $data[$i];
+                        $headers[$i] = $i;
                     }
                     // and we need to store csv data
                 } else {
                     // this column isn' ta header, store it if there is a header for it
-                    if (isset($headers[ $i ])) {
-                        $model_entry[ $headers[ $i ] ] = $data[ $i ];
+                    if (isset($headers[$i])) {
+                        $model_entry[$headers[$i]] = $data[$i];
                     }
                 }
             }
             // save the row's data IF it's a non-header-row
-            if (! $first_row_is_headers || ($first_row_is_headers && $row > 1)) {
-                $ee_formatted_data[ $model_name ][] = $model_entry;
+            if ( ! $first_row_is_headers || ($first_row_is_headers && $row > 1)) {
+                $ee_formatted_data[$model_name][] = $model_entry;
             }
             // advance to next row
             $row++;
@@ -353,7 +353,7 @@ 
         // header("Content-Type: application/force-download");
         // header("Content-Type: application/octet-stream");
         // header("Content-Type: application/download");
-        header('Content-disposition: attachment; filename=' . $filename);
+        header('Content-disposition: attachment; filename='.$filename);
         header("Content-Type: text/csv; charset=utf-8");
         do_action('AHEE__EE_CSV__begin_sending_csv__headers');
         echo apply_filters(
@@ -372,7 +372,7 @@ 
      */
     public function write_metadata_to_csv($filehandle)
     {
-        $data_row = array(EE_CSV::metadata_header);// do NOT translate because this exact string is used when importing
+        $data_row = array(EE_CSV::metadata_header); // do NOT translate because this exact string is used when importing
         $this->fputcsv2($filehandle, $data_row);
         $meta_data = array(
             0 => array(
@@ -501,7 +501,7 @@ 
             echo $this->fputcsv2($filehandle, array('MODEL', $model_name));
             // if we have items to put in the CSV, do it normally
 
-            if (! empty($model_instance_arrays)) {
+            if ( ! empty($model_instance_arrays)) {
                 $this->write_data_array_to_csv($filehandle, $model_instance_arrays);
             } else {
                 // echo "no data to write... so just write the headers";
@@ -510,7 +510,7 @@ 
                 $model = EE_Registry::instance()->load_model($model_name);
                 $column_names = array();
                 foreach ($model->field_settings() as $field) {
-                    $column_names[ $field->get_nicename() . "[" . $field->get_name() . "]" ] = null;
+                    $column_names[$field->get_nicename()."[".$field->get_name()."]"] = null;
                 }
                 $this->write_data_array_to_csv($filehandle, array($column_names));
             }
@@ -543,12 +543,12 @@ 
     {
 
         // no data file?? get outta here
-        if (! $data or ! is_array($data) or empty($data)) {
+        if ( ! $data or ! is_array($data) or empty($data)) {
             return false;
         }
 
         // no filename?? get outta here
-        if (! $filename) {
+        if ( ! $filename) {
             return false;
         }
 
@@ -629,11 +629,11 @@ 
             }
 
             $output[] = preg_match("/(?:${delimiter_esc}|${enclosure_esc}|\s)/", $field_value) ?
-                ($enclosure . str_replace($enclosure, $enclosure . $enclosure, $field_value) . $enclosure)
+                ($enclosure.str_replace($enclosure, $enclosure.$enclosure, $field_value).$enclosure)
                 : $field_value;
         }
 
-        fwrite($fh, join($delimiter, $output) . PHP_EOL);
+        fwrite($fh, join($delimiter, $output).PHP_EOL);
     }