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<?php |
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/** |
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* CMB2 Base - Base object functionality. |
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* |
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* @category WordPress_Plugin |
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* @package CMB2 |
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* @author WebDevStudios |
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* @license GPL-2.0+ |
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* @link http://webdevstudios.com |
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*/ |
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abstract class CMB2_Base { |
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/** |
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* Current CMB2 instance ID |
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* @var string |
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* @since 2.2.3 |
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*/ |
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protected $cmb_id = ''; |
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/** |
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* The deprecated object properties name. |
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* @var string |
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* @since 2.2.3 |
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*/ |
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protected $properties_name = 'meta_box'; |
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/** |
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* Object ID |
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* @var mixed |
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* @since 2.2.3 |
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*/ |
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protected $object_id = 0; |
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/** |
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* Type of object being handled. (e.g., post, user, comment, or term) |
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* @var string |
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* @since 2.2.3 |
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*/ |
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protected $object_type = 'post'; |
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/** |
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* Array of key => value data for saving. Likely $_POST data. |
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* @var array |
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* @since 2.2.3 |
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*/ |
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public $data_to_save = array(); |
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/** |
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* Array of field param callback results |
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* @var array |
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* @since 2.0.0 |
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*/ |
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protected $callback_results = array(); |
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/** |
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* Get started |
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* @since 2.2.3 |
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* @param array $args Object properties array |
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*/ |
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public function __construct( $args = array() ) { |
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if ( ! empty( $args ) ) { |
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foreach ( array( |
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'cmb_id', |
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'properties_name', |
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'object_id', |
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'object_type', |
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'data_to_save', |
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) as $object_prop ) { |
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if ( isset( $args[ $object_prop ] ) ) { |
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$this->{$object_prop} = $args[ $object_prop ]; |
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} |
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} |
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} |
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} |
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/** |
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* Returns the object ID |
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* @since 2.2.3 |
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* @param integer $object_id Object ID |
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* @return integer Object ID |
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*/ |
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public function object_id( $object_id = 0 ) { |
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if ( $object_id ) { |
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$this->object_id = $object_id; |
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} |
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return $this->object_id; |
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} |
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/** |
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* Returns the object type |
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* @since 2.2.3 |
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* @param string $object_type Object Type |
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* @return string Object type |
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*/ |
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public function object_type( $object_type = '' ) { |
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if ( $object_type ) { |
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$this->object_type = $object_type; |
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} |
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return $this->object_type; |
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} |
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/** |
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* Get the object type for the current page, based on the $pagenow global. |
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* @since 2.2.2 |
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* @return string Page object type name. |
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*/ |
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View Code Duplication |
public function current_object_type() { |
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global $pagenow; |
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$type = 'post'; |
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if ( in_array( $pagenow, array( 'user-edit.php', 'profile.php', 'user-new.php' ), true ) ) { |
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$type = 'user'; |
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} |
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if ( in_array( $pagenow, array( 'edit-comments.php', 'comment.php' ), true ) ) { |
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$type = 'comment'; |
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} |
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if ( in_array( $pagenow, array( 'edit-tags.php', 'term.php' ), true ) ) { |
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$type = 'term'; |
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} |
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return $type; |
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} |
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/** |
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* Set object property. |
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* @since 2.2.2 |
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* @param string $property Metabox config property to retrieve |
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* @param mixed $value Value to set if no value found |
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* @return mixed Metabox config property value or false |
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*/ |
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public function set_prop( $property, $value ) { |
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$this->{$this->properties_name}[ $property ] = $value; |
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return $this->prop( $property ); |
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} |
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/** |
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* Get object property and optionally set a fallback |
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* @since 2.0.0 |
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* @param string $property Metabox config property to retrieve |
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* @param mixed $fallback Fallback value to set if no value found |
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* @return mixed Metabox config property value or false |
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*/ |
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public function prop( $property, $fallback = null ) { |
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if ( array_key_exists( $property, $this->{$this->properties_name} ) ) { |
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return $this->{$this->properties_name}[ $property ]; |
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} elseif ( $fallback ) { |
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return $this->{$this->properties_name}[ $property ] = $fallback; |
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} |
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} |
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/** |
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* Get default field arguments specific to this CMB2 object. |
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* @since 2.2.0 |
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* @param array $field_args Metabox field config array. |
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* @param CMB2_Field $field_group (optional) CMB2_Field object (group parent) |
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* @return array Array of field arguments. |
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*/ |
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View Code Duplication |
protected function get_default_args( $field_args, $field_group = null ) { |
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if ( $field_group ) { |
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$args = array( |
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'field_args' => $field_args, |
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'group_field' => $field_group, |
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); |
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} else { |
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$args = array( |
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'field_args' => $field_args, |
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'object_type' => $this->object_type(), |
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'object_id' => $this->object_id(), |
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'cmb_id' => $this->cmb_id, |
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); |
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} |
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return $args; |
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} |
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/** |
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* Get a new field object specific to this CMB2 object. |
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* @since 2.2.0 |
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* @param array $field_args Metabox field config array. |
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* @param CMB2_Field $field_group (optional) CMB2_Field object (group parent) |
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* @return CMB2_Field CMB2_Field object |
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*/ |
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protected function get_new_field( $field_args, $field_group = null ) { |
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return new CMB2_Field( $this->get_default_args( $field_args, $field_group ) ); |
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} |
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/** |
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* Determine whether this cmb object should show, based on the 'show_on_cb' callback. |
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* |
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* @since 2.0.9 |
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* |
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* @return bool Whether this cmb should be shown. |
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*/ |
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public function should_show() { |
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// Default to showing this cmb |
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$show = true; |
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// Use the callback to determine showing the cmb, if it exists |
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if ( is_callable( $this->prop( 'show_on_cb' ) ) ) { |
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$show = (bool) call_user_func( $this->prop( 'show_on_cb' ), $this ); |
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} |
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return $show; |
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} |
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/** |
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* Displays the results of the param callbacks. |
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* |
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* @since 2.0.0 |
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* @param string $param Field parameter |
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*/ |
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public function peform_param_callback( $param ) { |
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echo $this->get_param_callback_result( $param ); |
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} |
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/** |
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* Store results of the param callbacks for continual access |
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* @since 2.0.0 |
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* @param string $param Field parameter |
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* @return mixed Results of param/param callback |
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*/ |
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public function get_param_callback_result( $param ) { |
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// If we've already retrieved this param's value, |
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if ( array_key_exists( $param, $this->callback_results ) ) { |
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// send it back |
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return $this->callback_results[ $param ]; |
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} |
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// Check if parameter has registered a callback. |
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if ( $cb = $this->maybe_callback( $param ) ) { |
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// Ok, callback is good, let's run it and store the result. |
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ob_start(); |
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$returned = $this->do_callback( $cb ); |
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// Grab the result from the output buffer and store it. |
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$echoed = ob_get_clean(); |
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// This checks if the user returned or echoed their callback. |
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// Defaults to using the echoed value. |
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$this->callback_results[ $param ] = $echoed ? $echoed : $returned; |
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} else { |
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// Otherwise just get whatever is there. |
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$this->callback_results[ $param ] = isset( $this->{$this->properties_name}[ $param ] ) ? $this->{$this->properties_name}[ $param ] : false; |
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} |
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return $this->callback_results[ $param ]; |
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} |
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/** |
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* Handles the property callbacks, and passes this object as property. |
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* @since 2.2.3 |
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* @param callable $cb The callback method/function/closure |
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* @return mixed Return of the callback function. |
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*/ |
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protected function do_callback( $cb ) { |
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return call_user_func( $cb, $this->{$this->properties_name}, $this ); |
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} |
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/** |
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* Checks if field has a callback value |
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* @since 1.0.1 |
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* @param string $cb Callback string |
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* @return mixed NULL, false for NO validation, or $cb string if it exists. |
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*/ |
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public function maybe_callback( $cb ) { |
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$args = $this->{$this->properties_name}; |
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if ( ! isset( $args[ $cb ] ) ) { |
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return; |
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} |
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// Check if requesting explicitly false |
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$cb = false !== $args[ $cb ] && 'false' !== $args[ $cb ] ? $args[ $cb ] : false; |
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// If requesting NO validation, return false |
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if ( ! $cb ) { |
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return false; |
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} |
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if ( is_callable( $cb ) ) { |
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return $cb; |
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} |
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return false; |
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} |
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/** |
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* Magic getter for our object. |
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* @param string $field |
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* @throws Exception Throws an exception if the field is invalid. |
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* @return mixed |
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*/ |
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public function __get( $field ) { |
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switch ( $field ) { |
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case 'args': |
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case 'meta_box': |
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if ( $field === $this->properties_name ) { |
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return $this->{$this->properties_name}; |
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} |
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case 'properties': |
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return $this->{$this->properties_name}; |
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case 'cmb_id': |
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case 'object_id': |
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case 'object_type': |
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return $this->{$field}; |
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default: |
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throw new Exception( 'Invalid ' . __CLASS__ . ' property: ' . $field ); |
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} |
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} |
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} |
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You can fix this by adding a namespace to your class:
When choosing a vendor namespace, try to pick something that is not too generic to avoid conflicts with other libraries.