AyeCode / invoicing

includes/data-stores/class-getpaid-subscription-data-store.php

Indentation +175 added lines, -175 removed lines

@@ -5,7 +5,7 @@ 
  *
  */
 if ( ! defined( 'ABSPATH' ) ) {
-	exit;
+    exit;
 }
 
 /**
@@ -15,190 +15,190 @@ 
  */
 class GetPaid_Subscription_Data_Store {
 
-	/**
-	 * A map of database fields to data types.
-	 *
-	 * @since 1.0.19
-	 * @var array
-	 */
-	protected $database_fields_to_data_type = array(
-		'id'                => '%d',
-		'customer_id'       => '%d',
-		'frequency'         => '%d',
-		'period'            => '%s',
-		'initial_amount'    => '%s',
-		'recurring_amount'  => '%s',
-		'bill_times'        => '%d',
-		'transaction_id'    => '%s',
-		'parent_payment_id' => '%d',
-		'product_id'        => '%d',
-		'created'           => '%s',
-		'expiration'        => '%s',
-		'trial_period'      => '%s',
-		'status'            => '%s',
-		'profile_id'        => '%s',
-	);
-
-	/*
+    /**
+     * A map of database fields to data types.
+     *
+     * @since 1.0.19
+     * @var array
+     */
+    protected $database_fields_to_data_type = array(
+        'id'                => '%d',
+        'customer_id'       => '%d',
+        'frequency'         => '%d',
+        'period'            => '%s',
+        'initial_amount'    => '%s',
+        'recurring_amount'  => '%s',
+        'bill_times'        => '%d',
+        'transaction_id'    => '%s',
+        'parent_payment_id' => '%d',
+        'product_id'        => '%d',
+        'created'           => '%s',
+        'expiration'        => '%s',
+        'trial_period'      => '%s',
+        'status'            => '%s',
+        'profile_id'        => '%s',
+    );
+
+    /*
 	|--------------------------------------------------------------------------
 	| CRUD Methods
 	|--------------------------------------------------------------------------
 	*/
 
-	/**
-	 * Method to create a new subscription in the database.
-	 *
-	 * @param WPInv_Subscription $subscription Subscription object.
-	 */
-	public function create( &$subscription ) {
-		global $wpdb;
-
-		$values  = array();
-		$formats = array();
-
-		$fields = $this->database_fields_to_data_type;
-		unset( $fields['id'] );
-
-		foreach ( $fields as $key => $format ) {
-			$method       = "get_$key";
-			$values[$key] = $subscription->$method( 'edit' );
-			$formats[]    = $format;
-		}
-
-		$result = $wpdb->insert( $wpdb->prefix . 'wpinv_subscriptions', $fields, $formats );
-
-		if ( $result ) {
-			$subscription->set_id( $wpdb->insert_id );
-			$subscription->apply_changes();
-			$subscription->clear_cache();
-			do_action( 'getpaid_new_subscription', $subscription );
-			return true;
-		}
-
-		return false;
-	}
-
-	/**
-	 * Method to read a subscription from the database.
-	 *
-	 * @param WPInv_Subscription $subscription Subscription object.
-	 *
-	 */
-	public function read( &$subscription ) {
-		global $wpdb;
-
-		$subscription->set_defaults();
-
-		if ( ! $subscription->get_id() ) {
-			$subscription->last_error = __( 'Invalid subscription ID.', 'invoicing' );
-			$subscription->set_id( 0 );
-			return false;
-		}
-
-		// Maybe retrieve from the cache.
-		$raw_subscription = wp_cache_get( $subscription->get_id(), 'getpaid_subscriptions' );
-
-		// If not found, retrieve from the db.
-		if ( false === $raw_subscription ) {
-
-			$raw_subscription = $wpdb->get_row(
-				$wpdb->prepare(
-					"SELECT * FROM {$wpdb->prefix}wpinv_subscriptions WHERE id = %d",
-					$subscription->get_id()
-				)
-			);
-
-			// Update the cache with our data
-			wp_cache_set( $subscription->get_id(), $raw_subscription, 'getpaid_subscriptions' );
-
-		}
-
-		if ( ! $raw_subscription ) {
-			$subscription->last_error = __( 'Invalid subscription ID.', 'invoicing' );
-			return false;
-		}
-
-		foreach ( array_keys( $this->database_fields_to_data_type ) as $key ) {
-			$method     = "set_$key";
-			$subscription->$method( $raw_subscription->$key );
-		}
-
-		$subscription->set_object_read( true );
-		do_action( 'getpaid_read_subscription', $subscription );
-
-	}
-
-	/**
-	 * Method to update a subscription in the database.
-	 *
-	 * @param WPInv_Subscription $subscription Subscription object.
-	 */
-	public function update( &$subscription ) {
-		global $wpdb;
-
-		$changes = $subscription->get_changes();
-		$values  = array();
-		$format  = array();
-
-		foreach ( $this->database_fields_to_data_type as $key => $format ) {
-			if ( array_key_exists( $key, $changes ) ) {
-				$method       = "get_$key";
-				$values[$key] = $subscription->$method( 'edit' );
-				$formats[]    = $format;
-			}
-		}
-
-		if ( empty( $values ) ) {
-			return;
-		}
-
-		$wpdb->update(
-			$wpdb->prefix . 'wpinv_subscriptions',
-			$values,
-			array(
-				'id' => $subscription->get_id(),
-			),
-			$formats,
-			'%d'
-		);
-
-		// Apply the changes.
-		$subscription->apply_changes();
-
-		// Delete cache.
-		$subscription->clear_cache();
-
-		// Fire a hook.
-		do_action( 'getpaid_update_subscription', $subscription->get_id(), $subscription );
-
-	}
-
-	/**
-	 * Method to delete a subscription from the database.
-	 *
-	 * @param WPInv_Subscription $subscription
-	 */
-	public function delete( &$subscription ) {
-		global $wpdb;
-
-		$wpdb->query(
-			$wpdb->prepare(
-				"DELETE FROM {$wpdb->prefix}getpaid_subscriptions
+    /**
+     * Method to create a new subscription in the database.
+     *
+     * @param WPInv_Subscription $subscription Subscription object.
+     */
+    public function create( &$subscription ) {
+        global $wpdb;
+
+        $values  = array();
+        $formats = array();
+
+        $fields = $this->database_fields_to_data_type;
+        unset( $fields['id'] );
+
+        foreach ( $fields as $key => $format ) {
+            $method       = "get_$key";
+            $values[$key] = $subscription->$method( 'edit' );
+            $formats[]    = $format;
+        }
+
+        $result = $wpdb->insert( $wpdb->prefix . 'wpinv_subscriptions', $fields, $formats );
+
+        if ( $result ) {
+            $subscription->set_id( $wpdb->insert_id );
+            $subscription->apply_changes();
+            $subscription->clear_cache();
+            do_action( 'getpaid_new_subscription', $subscription );
+            return true;
+        }
+
+        return false;
+    }
+
+    /**
+     * Method to read a subscription from the database.
+     *
+     * @param WPInv_Subscription $subscription Subscription object.
+     *
+     */
+    public function read( &$subscription ) {
+        global $wpdb;
+
+        $subscription->set_defaults();
+
+        if ( ! $subscription->get_id() ) {
+            $subscription->last_error = __( 'Invalid subscription ID.', 'invoicing' );
+            $subscription->set_id( 0 );
+            return false;
+        }
+
+        // Maybe retrieve from the cache.
+        $raw_subscription = wp_cache_get( $subscription->get_id(), 'getpaid_subscriptions' );
+
+        // If not found, retrieve from the db.
+        if ( false === $raw_subscription ) {
+
+            $raw_subscription = $wpdb->get_row(
+                $wpdb->prepare(
+                    "SELECT * FROM {$wpdb->prefix}wpinv_subscriptions WHERE id = %d",
+                    $subscription->get_id()
+                )
+            );
+
+            // Update the cache with our data
+            wp_cache_set( $subscription->get_id(), $raw_subscription, 'getpaid_subscriptions' );
+
+        }
+
+        if ( ! $raw_subscription ) {
+            $subscription->last_error = __( 'Invalid subscription ID.', 'invoicing' );
+            return false;
+        }
+
+        foreach ( array_keys( $this->database_fields_to_data_type ) as $key ) {
+            $method     = "set_$key";
+            $subscription->$method( $raw_subscription->$key );
+        }
+
+        $subscription->set_object_read( true );
+        do_action( 'getpaid_read_subscription', $subscription );
+
+    }
+
+    /**
+     * Method to update a subscription in the database.
+     *
+     * @param WPInv_Subscription $subscription Subscription object.
+     */
+    public function update( &$subscription ) {
+        global $wpdb;
+
+        $changes = $subscription->get_changes();
+        $values  = array();
+        $format  = array();
+
+        foreach ( $this->database_fields_to_data_type as $key => $format ) {
+            if ( array_key_exists( $key, $changes ) ) {
+                $method       = "get_$key";
+                $values[$key] = $subscription->$method( 'edit' );
+                $formats[]    = $format;
+            }
+        }
+
+        if ( empty( $values ) ) {
+            return;
+        }
+
+        $wpdb->update(
+            $wpdb->prefix . 'wpinv_subscriptions',
+            $values,
+            array(
+                'id' => $subscription->get_id(),
+            ),
+            $formats,
+            '%d'
+        );
+
+        // Apply the changes.
+        $subscription->apply_changes();
+
+        // Delete cache.
+        $subscription->clear_cache();
+
+        // Fire a hook.
+        do_action( 'getpaid_update_subscription', $subscription->get_id(), $subscription );
+
+    }
+
+    /**
+     * Method to delete a subscription from the database.
+     *
+     * @param WPInv_Subscription $subscription
+     */
+    public function delete( &$subscription ) {
+        global $wpdb;
+
+        $wpdb->query(
+            $wpdb->prepare(
+                "DELETE FROM {$wpdb->prefix}getpaid_subscriptions
 				WHERE id = %d",
-				$subscription->get_id()
-			)
-		);
+                $subscription->get_id()
+            )
+        );
 
-		// Delete cache.
-		$subscription->clear_cache();
+        // Delete cache.
+        $subscription->clear_cache();
 
-		// Fire a hook.
-		do_action( 'getpaid_delete_subscription', $subscription->get_id(), $subscription );
+        // Fire a hook.
+        do_action( 'getpaid_delete_subscription', $subscription->get_id(), $subscription );
 
-		$subscription->set_id( 0 );
-	}
+        $subscription->set_id( 0 );
+    }
 
-	/*
+    /*
 	|--------------------------------------------------------------------------
 	| Additional Methods
 	|--------------------------------------------------------------------------

Spacing +32 added lines, -32 removed lines

@@ -4,7 +4,7 @@ 
  * GetPaid_Subscription_Data_Store class file.
  *
  */
-if ( ! defined( 'ABSPATH' ) ) {
+if (!defined('ABSPATH')) {
 	exit;
 }
 
@@ -50,28 +50,28 @@ 
 	 *
 	 * @param WPInv_Subscription $subscription Subscription object.
 	 */
-	public function create( &$subscription ) {
+	public function create(&$subscription) {
 		global $wpdb;
 
 		$values  = array();
 		$formats = array();
 
 		$fields = $this->database_fields_to_data_type;
-		unset( $fields['id'] );
+		unset($fields['id']);
 
-		foreach ( $fields as $key => $format ) {
+		foreach ($fields as $key => $format) {
 			$method       = "get_$key";
-			$values[$key] = $subscription->$method( 'edit' );
+			$values[$key] = $subscription->$method('edit');
 			$formats[]    = $format;
 		}
 
-		$result = $wpdb->insert( $wpdb->prefix . 'wpinv_subscriptions', $fields, $formats );
+		$result = $wpdb->insert($wpdb->prefix . 'wpinv_subscriptions', $fields, $formats);
 
-		if ( $result ) {
-			$subscription->set_id( $wpdb->insert_id );
+		if ($result) {
+			$subscription->set_id($wpdb->insert_id);
 			$subscription->apply_changes();
 			$subscription->clear_cache();
-			do_action( 'getpaid_new_subscription', $subscription );
+			do_action('getpaid_new_subscription', $subscription);
 			return true;
 		}
 
@@ -84,22 +84,22 @@ 
 	 * @param WPInv_Subscription $subscription Subscription object.
 	 *
 	 */
-	public function read( &$subscription ) {
+	public function read(&$subscription) {
 		global $wpdb;
 
 		$subscription->set_defaults();
 
-		if ( ! $subscription->get_id() ) {
-			$subscription->last_error = __( 'Invalid subscription ID.', 'invoicing' );
-			$subscription->set_id( 0 );
+		if (!$subscription->get_id()) {
+			$subscription->last_error = __('Invalid subscription ID.', 'invoicing');
+			$subscription->set_id(0);
 			return false;
 		}
 
 		// Maybe retrieve from the cache.
-		$raw_subscription = wp_cache_get( $subscription->get_id(), 'getpaid_subscriptions' );
+		$raw_subscription = wp_cache_get($subscription->get_id(), 'getpaid_subscriptions');
 
 		// If not found, retrieve from the db.
-		if ( false === $raw_subscription ) {
+		if (false === $raw_subscription) {
 
 			$raw_subscription = $wpdb->get_row(
 				$wpdb->prepare(
@@ -109,22 +109,22 @@ 
 			);
 
 			// Update the cache with our data
-			wp_cache_set( $subscription->get_id(), $raw_subscription, 'getpaid_subscriptions' );
+			wp_cache_set($subscription->get_id(), $raw_subscription, 'getpaid_subscriptions');
 
 		}
 
-		if ( ! $raw_subscription ) {
-			$subscription->last_error = __( 'Invalid subscription ID.', 'invoicing' );
+		if (!$raw_subscription) {
+			$subscription->last_error = __('Invalid subscription ID.', 'invoicing');
 			return false;
 		}
 
-		foreach ( array_keys( $this->database_fields_to_data_type ) as $key ) {
-			$method     = "set_$key";
-			$subscription->$method( $raw_subscription->$key );
+		foreach (array_keys($this->database_fields_to_data_type) as $key) {
+			$method = "set_$key";
+			$subscription->$method($raw_subscription->$key);
 		}
 
-		$subscription->set_object_read( true );
-		do_action( 'getpaid_read_subscription', $subscription );
+		$subscription->set_object_read(true);
+		do_action('getpaid_read_subscription', $subscription);
 
 	}
 
@@ -133,22 +133,22 @@ 
 	 *
 	 * @param WPInv_Subscription $subscription Subscription object.
 	 */
-	public function update( &$subscription ) {
+	public function update(&$subscription) {
 		global $wpdb;
 
 		$changes = $subscription->get_changes();
 		$values  = array();
 		$format  = array();
 
-		foreach ( $this->database_fields_to_data_type as $key => $format ) {
-			if ( array_key_exists( $key, $changes ) ) {
+		foreach ($this->database_fields_to_data_type as $key => $format) {
+			if (array_key_exists($key, $changes)) {
 				$method       = "get_$key";
-				$values[$key] = $subscription->$method( 'edit' );
+				$values[$key] = $subscription->$method('edit');
 				$formats[]    = $format;
 			}
 		}
 
-		if ( empty( $values ) ) {
+		if (empty($values)) {
 			return;
 		}
 
@@ -169,7 +169,7 @@ 
 		$subscription->clear_cache();
 
 		// Fire a hook.
-		do_action( 'getpaid_update_subscription', $subscription->get_id(), $subscription );
+		do_action('getpaid_update_subscription', $subscription->get_id(), $subscription);
 
 	}
 
@@ -178,7 +178,7 @@ 
 	 *
 	 * @param WPInv_Subscription $subscription
 	 */
-	public function delete( &$subscription ) {
+	public function delete(&$subscription) {
 		global $wpdb;
 
 		$wpdb->query(
@@ -193,9 +193,9 @@ 
 		$subscription->clear_cache();
 
 		// Fire a hook.
-		do_action( 'getpaid_delete_subscription', $subscription->get_id(), $subscription );
+		do_action('getpaid_delete_subscription', $subscription->get_id(), $subscription);
 
-		$subscription->set_id( 0 );
+		$subscription->set_id(0);
 	}
 
 	/*

includes/class-wpinv.php

Indentation +490 added lines, -490 removed lines

@@ -14,508 +14,508 @@ 
  */
 class WPInv_Plugin {
 
-	/**
-	 * GetPaid version.
-	 *
-	 * @var string
-	 */
-	public $version;
-
-	/**
-	 * Data container.
-	 *
-	 * @var array
-	 */
-	protected $data = array();
-
-	/**
-	 * Form elements instance.
-	 *
-	 * @var WPInv_Payment_Form_Elements
-	 */
-	public $form_elements;
-
-	/**
-	 * Tax instance.
-	 *
-	 * @var WPInv_EUVat
-	 */
-	public $tax;
-
-	/**
-	 * @param array An array of payment gateways.
-	 */
-	public $gateways;
-
-	/**
-	 * Class constructor.
-	 */
-	public function __construct() {
-		$this->define_constants();
-		$this->includes();
-		$this->init_hooks();
-		$this->set_properties();
-	}
-
-	/**
-	 * Sets a custom data property.
-	 * 
-	 * @param string $prop The prop to set.
-	 * @param mixed $value The value to retrieve.
-	 */
-	public function set( $prop, $value ) {
-		$this->data[ $prop ] = $value;
-	}
-
-	/**
-	 * Gets a custom data property.
-	 * 
-	 * @param string $prop The prop to set.
-	 * @return mixed The value.
-	 */
-	public function get( $prop ) {
-
-		if ( isset( $this->data[ $prop ] ) ) {
-			return $this->data[ $prop ];
-		}
-
-		return null;
-	}
-
-	/**
-	 * Define class properties.
-	 */
-	public function set_properties() {
-
-		// Sessions.
-		$this->set( 'session', new WPInv_Session_Handler() );
-		$GLOBALS['wpi_session'] = $this->get( 'session' ); // Backwards compatibility.
-		$this->form_elements = new WPInv_Payment_Form_Elements();
-		$this->tax           = new WPInv_EUVat();
-		$this->tax->init();
-		$GLOBALS['wpinv_euvat'] = $this->tax; // Backwards compatibility.
-
-		// Init other objects.
-		$this->set( 'reports', new WPInv_Reports() ); // TODO: Refactor.
-		$this->set( 'session', new WPInv_Session_Handler() );
-		$this->set( 'notes', new WPInv_Notes() );
-		$this->set( 'api', new WPInv_API() );
-		$this->set( 'post_types', new GetPaid_Post_Types() );
-		$this->set( 'template', new GetPaid_Template() );
-		$this->set( 'admin', new GetPaid_Admin() );
-	}
-
-	 /**
-	 * Define plugin constants.
-	 */
-	public function define_constants() {
-		define( 'WPINV_PLUGIN_DIR', plugin_dir_path( WPINV_PLUGIN_FILE ) );
-		define( 'WPINV_PLUGIN_URL', plugin_dir_url( WPINV_PLUGIN_FILE ) );
-		$this->version = WPINV_VERSION;
-	}
-
-	/**
-	 * Hook into actions and filters.
-	 *
-	 * @since 1.0.19
-	 */
-	protected function init_hooks() {
-		/* Internationalize the text strings used. */
-		add_action( 'plugins_loaded', array( &$this, 'plugins_loaded' ) );
-
-		// Init the plugin after WordPress inits.
-		add_action( 'init', array( $this, 'init' ), 1 );
-		add_action( 'getpaid_init', array( $this, 'maybe_process_ipn' ), 5 );
-		add_action( 'init', array( &$this, 'wpinv_actions' ) );
-
-		if ( class_exists( 'BuddyPress' ) ) {
-			add_action( 'bp_include', array( &$this, 'bp_invoicing_init' ) );
-		}
-
-		add_action( 'wp_enqueue_scripts', array( &$this, 'enqueue_scripts' ) );
-		add_action( 'wp_footer', array( &$this, 'wp_footer' ) );
-		add_action( 'widgets_init', array( &$this, 'register_widgets' ) );
-		add_filter( 'wpseo_exclude_from_sitemap_by_post_ids', array( $this, 'wpseo_exclude_from_sitemap_by_post_ids' ) );
-		add_filter( 'pre_get_posts', array( &$this, 'pre_get_posts' ) );
-
-		// Fires after registering actions.
-		do_action( 'wpinv_actions', $this );
-		do_action( 'getpaid_actions', $this );
-
-	}
-
-	public function plugins_loaded() {
-		/* Internationalize the text strings used. */
-		$this->load_textdomain();
-
-		do_action( 'wpinv_loaded' );
-
-		// Fix oxygen page builder conflict
-		if ( function_exists( 'ct_css_output' ) ) {
-			wpinv_oxygen_fix_conflict();
-		}
-	}
-
-	/**
-	 * Load the translation of the plugin.
-	 *
-	 * @since 1.0
-	 */
-	public function load_textdomain( $locale = NULL ) {
-		if ( empty( $locale ) ) {
-			$locale = is_admin() && function_exists( 'get_user_locale' ) ? get_user_locale() : get_locale();
-		}
-
-		$locale = apply_filters( 'plugin_locale', $locale, 'invoicing' );
-
-		unload_textdomain( 'invoicing' );
-		load_textdomain( 'invoicing', WP_LANG_DIR . '/invoicing/invoicing-' . $locale . '.mo' );
-		load_plugin_textdomain( 'invoicing', false, WPINV_PLUGIN_DIR . 'languages' );
-
-		/**
-		 * Define language constants.
-		 */
-		require_once( WPINV_PLUGIN_DIR . 'language.php' );
-	}
-
-	/**
-	 * Include required core files used in admin and on the frontend.
-	 */
-	public function includes() {
-
-		// Start with the settings.
-		require_once( WPINV_PLUGIN_DIR . 'includes/admin/register-settings.php' );
-
-		// Packages/libraries.
-		require_once( WPINV_PLUGIN_DIR . 'vendor/autoload.php' );
-		require_once( WPINV_PLUGIN_DIR . 'vendor/ayecode/wp-ayecode-ui/ayecode-ui-loader.php' );
-		require_once( WPINV_PLUGIN_DIR . 'includes/libraries/action-scheduler/action-scheduler.php' );
-
-		// Load functions.
-		require_once( WPINV_PLUGIN_DIR . 'includes/deprecated-functions.php' );
-		require_once( WPINV_PLUGIN_DIR . 'includes/wpinv-email-functions.php' );
-		require_once( WPINV_PLUGIN_DIR . 'includes/wpinv-general-functions.php' );
-		require_once( WPINV_PLUGIN_DIR . 'includes/wpinv-helper-functions.php' );
-		require_once( WPINV_PLUGIN_DIR . 'includes/wpinv-tax-functions.php' );
-		require_once( WPINV_PLUGIN_DIR . 'includes/wpinv-template-functions.php' );
-		require_once( WPINV_PLUGIN_DIR . 'includes/wpinv-address-functions.php' );
-		require_once( WPINV_PLUGIN_DIR . 'includes/invoice-functions.php' );
-		require_once( WPINV_PLUGIN_DIR . 'includes/wpinv-item-functions.php' );
-		require_once( WPINV_PLUGIN_DIR . 'includes/wpinv-discount-functions.php' );
-		require_once( WPINV_PLUGIN_DIR . 'includes/wpinv-gateway-functions.php' );
-		require_once( WPINV_PLUGIN_DIR . 'includes/wpinv-payment-functions.php' );
-		require_once( WPINV_PLUGIN_DIR . 'includes/wpinv-user-functions.php' );
-		require_once( WPINV_PLUGIN_DIR . 'includes/error-functions.php' );
-
-		// Register autoloader.
-		try {
-			spl_autoload_register( array( $this, 'autoload' ), true );
-		} catch ( Exception $e ) {
-			wpinv_error_log( $e->getMessage(), '', __FILE__, 149, true );
-		}
-
-		require_once( WPINV_PLUGIN_DIR . 'includes/abstracts/abstract-wpinv-session.php' );
-		require_once( WPINV_PLUGIN_DIR . 'includes/class-wpinv-session-handler.php' );
-		require_once( WPINV_PLUGIN_DIR . 'includes/class-wpinv-ajax.php' );
-		require_once( WPINV_PLUGIN_DIR . 'includes/class-wpinv-api.php' );
-		require_once( WPINV_PLUGIN_DIR . 'includes/class-wpinv-reports.php' );
-		require_once( WPINV_PLUGIN_DIR . 'includes/class-wpinv-cache-helper.php' );
-		require_once( WPINV_PLUGIN_DIR . 'includes/class-wpinv-db.php' );
-		require_once( WPINV_PLUGIN_DIR . 'includes/admin/subscriptions.php' );
-		require_once( WPINV_PLUGIN_DIR . 'includes/class-wpinv-subscriptions-db.php' );
-		require_once( WPINV_PLUGIN_DIR . 'includes/class-wpinv-subscriptions.php' );
-		require_once( WPINV_PLUGIN_DIR . 'includes/wpinv-subscription.php' );
-		require_once( WPINV_PLUGIN_DIR . 'includes/abstracts/abstract-wpinv-privacy.php' );
-		require_once( WPINV_PLUGIN_DIR . 'includes/class-wpinv-privacy.php' );
-		require_once( WPINV_PLUGIN_DIR . 'includes/libraries/class-ayecode-addons.php' );
-		require_once( WPINV_PLUGIN_DIR . 'includes/class-wpinv-addons.php' );
-		require_once( WPINV_PLUGIN_DIR . 'widgets/checkout.php' );
-		require_once( WPINV_PLUGIN_DIR . 'widgets/invoice-history.php' );
-		require_once( WPINV_PLUGIN_DIR . 'widgets/invoice-receipt.php' );
-		require_once( WPINV_PLUGIN_DIR . 'widgets/invoice-messages.php' );
-		require_once( WPINV_PLUGIN_DIR . 'widgets/subscriptions.php' );
-		require_once( WPINV_PLUGIN_DIR . 'widgets/buy-item.php' );
-		require_once( WPINV_PLUGIN_DIR . 'widgets/getpaid.php' );
-		require_once( WPINV_PLUGIN_DIR . 'includes/class-wpinv-payment-form-elements.php' );
-
-		/**
-		 * Load the tax class.
-		 */
-		if ( ! class_exists( 'WPInv_EUVat' ) ) {
-			require_once( WPINV_PLUGIN_DIR . 'includes/libraries/wpinv-euvat/class-wpinv-euvat.php' );
-		}
-
-		$gateways = array_keys( wpinv_get_enabled_payment_gateways() );
-		if ( !empty( $gateways ) ) {
-			foreach ( $gateways as $gateway ) {
-				if ( $gateway == 'manual' ) {
-					continue;
-				}
-
-				$gateway_file = WPINV_PLUGIN_DIR . 'includes/gateways/' . $gateway . '.php';
-
-				if ( file_exists( $gateway_file ) ) {
-					require_once( $gateway_file );
-				}
-			}
-		}
-
-		if ( is_admin() || ( defined( 'WP_CLI' ) && WP_CLI ) ) {
-			GetPaid_Post_Types_Admin::init();
-
-			require_once( WPINV_PLUGIN_DIR . 'includes/admin/wpinv-upgrade-functions.php' );
-			require_once( WPINV_PLUGIN_DIR . 'includes/admin/wpinv-admin-functions.php' );
-			//require_once( WPINV_PLUGIN_DIR . 'includes/admin/class-wpinv-recurring-admin.php' );
-			require_once( WPINV_PLUGIN_DIR . 'includes/admin/meta-boxes/class-mb-payment-form.php' );
-			require_once( WPINV_PLUGIN_DIR . 'includes/admin/meta-boxes/class-mb-invoice-notes.php' );
-			require_once( WPINV_PLUGIN_DIR . 'includes/admin/admin-pages.php' );
-			require_once( WPINV_PLUGIN_DIR . 'includes/admin/class-wpinv-admin-menus.php' );
-			require_once( WPINV_PLUGIN_DIR . 'includes/admin/class-wpinv-users.php' );
-			require_once( WPINV_PLUGIN_DIR . 'includes/admin/class-getpaid-admin-profile.php' );
-			//require_once( WPINV_PLUGIN_DIR . 'includes/admin/subscriptions.php' );
-			// load the user class only on the users.php page
-			global $pagenow;
-			if($pagenow=='users.php'){
-				new WPInv_Admin_Users();
-			}
-		}
-
-		// Register cli commands
-		if ( defined( 'WP_CLI' ) && WP_CLI ) {
-			require_once( WPINV_PLUGIN_DIR . 'includes/class-wpinv-cli.php' );
-			WP_CLI::add_command( 'invoicing', 'WPInv_CLI' );
-		}
-
-		// include css inliner
-		if ( ! class_exists( 'Emogrifier' ) && class_exists( 'DOMDocument' ) ) {
-			include_once( WPINV_PLUGIN_DIR . 'includes/libraries/class-emogrifier.php' );
-		}
-
-		require_once( WPINV_PLUGIN_DIR . 'includes/admin/install.php' );
-	}
-
-	/**
-	 * Class autoloader
-	 *
-	 * @param       string $class_name The name of the class to load.
-	 * @access      public
-	 * @since       1.0.19
-	 * @return      void
-	 */
-	public function autoload( $class_name ) {
-
-		// Normalize the class name...
-		$class_name  = strtolower( $class_name );
-
-		// ... and make sure it is our class.
-		if ( false === strpos( $class_name, 'getpaid_' ) && false === strpos( $class_name, 'wpinv_' ) ) {
-			return;
-		}
-
-		// Next, prepare the file name from the class.
-		$file_name = 'class-' . str_replace( '_', '-', $class_name ) . '.php';
-
-		// Base path of the classes.
-		$plugin_path = untrailingslashit( WPINV_PLUGIN_DIR );
-
-		// And an array of possible locations in order of importance.
-		$locations = array(
-			"$plugin_path/includes",
-			"$plugin_path/includes/data-stores",
-			"$plugin_path/includes/gateways",
-			"$plugin_path/includes/api",
-			"$plugin_path/includes/admin",
-			"$plugin_path/includes/admin/meta-boxes",
-		);
-
-		foreach ( apply_filters( 'getpaid_autoload_locations', $locations ) as $location ) {
-
-			if ( file_exists( trailingslashit( $location ) . $file_name ) ) {
-				include trailingslashit( $location ) . $file_name;
-				break;
-			}
-
-		}
-
-	}
-
-	/**
-	 * Inits hooks etc.
-	 */
-	public function init() {
-
-		// Fires before getpaid inits.
-		do_action( 'before_getpaid_init', $this );
-
-		// Load default gateways.
-		$gateways = apply_filters(
-			'getpaid_default_gateways',
-			array(
-				'manual'        => 'GetPaid_Manual_Gateway',
-				'paypal'        => 'GetPaid_Paypal_Gateway',
-				'worldpay'      => 'GetPaid_Worldpay_Gateway',
-				'bank_transfer' => 'GetPaid_Bank_Transfer_Gateway',
-				'authorizenet'  => 'GetPaid_Authorize_Net_Gateway',
-			)
-		);
-
-		foreach ( $gateways as $id => $class ) {
-			$this->gateways[ $id ] = new $class();
-		}
-
-		// Fires after getpaid inits.
-		do_action( 'getpaid_init', $this );
-
-	}
-
-	/**
-	 * Checks if this is an IPN request and processes it.
-	 */
-	public function maybe_process_ipn() {
-
-		// Ensure that this is an IPN request.
-		if ( empty( $_GET['wpi-listener'] ) || 'IPN' !== $_GET['wpi-listener'] || empty( $_GET['wpi-gateway'] ) ) {
-			return;
-		}
-
-		$gateway = wpinv_clean( $_GET['wpi-gateway'] );
-
-		do_action( 'wpinv_verify_payment_ipn', $gateway );
-		do_action( "wpinv_verify_{$gateway}_ipn" );
-		exit;
-
-	}
-
-	public function enqueue_scripts() {
-		$suffix       = defined( 'SCRIPT_DEBUG' ) && SCRIPT_DEBUG ? '' : '.min';
-
-		$version = filemtime( WPINV_PLUGIN_DIR . 'assets/css/invoice-front.css' );
-		wp_register_style( 'wpinv_front_style', WPINV_PLUGIN_URL . 'assets/css/invoice-front.css', array(), $version );
-		wp_enqueue_style( 'wpinv_front_style' );
-
-		// Register scripts
-		wp_register_script( 'jquery-blockui', WPINV_PLUGIN_URL . 'assets/js/jquery.blockUI.min.js', array( 'jquery' ), '2.70', true );
-		wp_register_script( 'wpinv-front-script', WPINV_PLUGIN_URL . 'assets/js/invoice-front.js', array( 'jquery' ),  filemtime( WPINV_PLUGIN_DIR . 'assets/js/invoice-front.js' ) );
-
-		$localize                         = array();
-		$localize['ajax_url']             = admin_url( 'admin-ajax.php' );
-		$localize['nonce']                = wp_create_nonce( 'wpinv-nonce' );
-		$localize['currency_symbol']      = wpinv_currency_symbol();
-		$localize['currency_pos']         = wpinv_currency_position();
-		$localize['thousand_sep']         = wpinv_thousands_separator();
-		$localize['decimal_sep']          = wpinv_decimal_separator();
-		$localize['decimals']             = wpinv_decimals();
-		$localize['txtComplete']          = __( 'Continue', 'invoicing' );
-		$localize['UseTaxes']             = wpinv_use_taxes();
-		$localize['checkoutNonce']        = wp_create_nonce( 'wpinv_checkout_nonce' );
-		$localize['formNonce']            = wp_create_nonce( 'getpaid_form_nonce' );
-		$localize['connectionError']      = __( 'Could not establish a connection to the server.', 'invoicing' );
-
-		$localize = apply_filters( 'wpinv_front_js_localize', $localize );
-
-		wp_enqueue_script( 'jquery-blockui' );
-		$autofill_api = wpinv_get_option('address_autofill_api');
-		$autofill_active = wpinv_get_option('address_autofill_active');
-		if ( isset( $autofill_active ) && 1 == $autofill_active && !empty( $autofill_api ) && wpinv_is_checkout() ) {
-			if ( wp_script_is( 'google-maps-api', 'enqueued' ) ) {
-				wp_dequeue_script( 'google-maps-api' );
-			}
-			wp_enqueue_script( 'google-maps-api', 'https://maps.googleapis.com/maps/api/js?key=' . $autofill_api . '&libraries=places', array( 'jquery' ), '', false );
-			wp_enqueue_script( 'google-maps-init', WPINV_PLUGIN_URL . 'assets/js/gaaf.js', array( 'jquery', 'google-maps-api' ), '', true );
-		}
-
-		wp_enqueue_style( "select2", WPINV_PLUGIN_URL . 'assets/css/select2/select2.css', array(), WPINV_VERSION, 'all' );
-		wp_enqueue_script('select2', WPINV_PLUGIN_URL . 'assets/js/select2/select2.full' . $suffix . '.js', array( 'jquery' ), WPINV_VERSION );
-
-		wp_enqueue_script( 'wpinv-front-script' );
-		wp_localize_script( 'wpinv-front-script', 'WPInv', $localize );
-
-		$version = filemtime( WPINV_PLUGIN_DIR . 'assets/js/payment-forms.js' );
-		wp_enqueue_script( 'wpinv-payment-form-script', WPINV_PLUGIN_URL . 'assets/js/payment-forms.js', array( 'wpinv-front-script', 'wp-hooks' ),  $version, true );
-	}
-
-	public function wpinv_actions() {
-		if ( isset( $_REQUEST['wpi_action'] ) ) {
-			do_action( 'wpinv_' . wpinv_sanitize_key( $_REQUEST['wpi_action'] ), $_REQUEST );
-		}
-	}
-
-	public function pre_get_posts( $wp_query ) {
-		if ( ! is_admin() && !empty( $wp_query->query_vars['post_type'] ) && $wp_query->query_vars['post_type'] == 'wpi_invoice' && is_user_logged_in() && is_single() && $wp_query->is_main_query() ) {
-			$wp_query->query_vars['post_status'] = array_keys( wpinv_get_invoice_statuses() );
-		}
-
-		return $wp_query;
-	}
-
-	public function bp_invoicing_init() {
-		require_once( WPINV_PLUGIN_DIR . 'includes/class-wpinv-bp-core.php' );
-	}
-
-	/**
-	 * Register widgets
-	 *
-	 */
-	public function register_widgets() {
-		$widgets = apply_filters(
-			'getpaid_widget_classes',
-			array(
-				'WPInv_Checkout_Widget',
-				'WPInv_History_Widget',
-				'WPInv_Receipt_Widget',
-				'WPInv_Subscriptions_Widget',
-				'WPInv_Buy_Item_Widget',
-				'WPInv_Messages_Widget',
-				'WPInv_GetPaid_Widget'
-			)
-		);
-
-		foreach ( $widgets as $widget ) {
-			register_widget( $widget );
-		}
+    /**
+     * GetPaid version.
+     *
+     * @var string
+     */
+    public $version;
+
+    /**
+     * Data container.
+     *
+     * @var array
+     */
+    protected $data = array();
+
+    /**
+     * Form elements instance.
+     *
+     * @var WPInv_Payment_Form_Elements
+     */
+    public $form_elements;
+
+    /**
+     * Tax instance.
+     *
+     * @var WPInv_EUVat
+     */
+    public $tax;
+
+    /**
+     * @param array An array of payment gateways.
+     */
+    public $gateways;
+
+    /**
+     * Class constructor.
+     */
+    public function __construct() {
+        $this->define_constants();
+        $this->includes();
+        $this->init_hooks();
+        $this->set_properties();
+    }
+
+    /**
+     * Sets a custom data property.
+     * 
+     * @param string $prop The prop to set.
+     * @param mixed $value The value to retrieve.
+     */
+    public function set( $prop, $value ) {
+        $this->data[ $prop ] = $value;
+    }
+
+    /**
+     * Gets a custom data property.
+     * 
+     * @param string $prop The prop to set.
+     * @return mixed The value.
+     */
+    public function get( $prop ) {
+
+        if ( isset( $this->data[ $prop ] ) ) {
+            return $this->data[ $prop ];
+        }
+
+        return null;
+    }
+
+    /**
+     * Define class properties.
+     */
+    public function set_properties() {
+
+        // Sessions.
+        $this->set( 'session', new WPInv_Session_Handler() );
+        $GLOBALS['wpi_session'] = $this->get( 'session' ); // Backwards compatibility.
+        $this->form_elements = new WPInv_Payment_Form_Elements();
+        $this->tax           = new WPInv_EUVat();
+        $this->tax->init();
+        $GLOBALS['wpinv_euvat'] = $this->tax; // Backwards compatibility.
+
+        // Init other objects.
+        $this->set( 'reports', new WPInv_Reports() ); // TODO: Refactor.
+        $this->set( 'session', new WPInv_Session_Handler() );
+        $this->set( 'notes', new WPInv_Notes() );
+        $this->set( 'api', new WPInv_API() );
+        $this->set( 'post_types', new GetPaid_Post_Types() );
+        $this->set( 'template', new GetPaid_Template() );
+        $this->set( 'admin', new GetPaid_Admin() );
+    }
+
+        /**
+         * Define plugin constants.
+         */
+    public function define_constants() {
+        define( 'WPINV_PLUGIN_DIR', plugin_dir_path( WPINV_PLUGIN_FILE ) );
+        define( 'WPINV_PLUGIN_URL', plugin_dir_url( WPINV_PLUGIN_FILE ) );
+        $this->version = WPINV_VERSION;
+    }
+
+    /**
+     * Hook into actions and filters.
+     *
+     * @since 1.0.19
+     */
+    protected function init_hooks() {
+        /* Internationalize the text strings used. */
+        add_action( 'plugins_loaded', array( &$this, 'plugins_loaded' ) );
+
+        // Init the plugin after WordPress inits.
+        add_action( 'init', array( $this, 'init' ), 1 );
+        add_action( 'getpaid_init', array( $this, 'maybe_process_ipn' ), 5 );
+        add_action( 'init', array( &$this, 'wpinv_actions' ) );
+
+        if ( class_exists( 'BuddyPress' ) ) {
+            add_action( 'bp_include', array( &$this, 'bp_invoicing_init' ) );
+        }
+
+        add_action( 'wp_enqueue_scripts', array( &$this, 'enqueue_scripts' ) );
+        add_action( 'wp_footer', array( &$this, 'wp_footer' ) );
+        add_action( 'widgets_init', array( &$this, 'register_widgets' ) );
+        add_filter( 'wpseo_exclude_from_sitemap_by_post_ids', array( $this, 'wpseo_exclude_from_sitemap_by_post_ids' ) );
+        add_filter( 'pre_get_posts', array( &$this, 'pre_get_posts' ) );
+
+        // Fires after registering actions.
+        do_action( 'wpinv_actions', $this );
+        do_action( 'getpaid_actions', $this );
+
+    }
+
+    public function plugins_loaded() {
+        /* Internationalize the text strings used. */
+        $this->load_textdomain();
+
+        do_action( 'wpinv_loaded' );
+
+        // Fix oxygen page builder conflict
+        if ( function_exists( 'ct_css_output' ) ) {
+            wpinv_oxygen_fix_conflict();
+        }
+    }
+
+    /**
+     * Load the translation of the plugin.
+     *
+     * @since 1.0
+     */
+    public function load_textdomain( $locale = NULL ) {
+        if ( empty( $locale ) ) {
+            $locale = is_admin() && function_exists( 'get_user_locale' ) ? get_user_locale() : get_locale();
+        }
+
+        $locale = apply_filters( 'plugin_locale', $locale, 'invoicing' );
+
+        unload_textdomain( 'invoicing' );
+        load_textdomain( 'invoicing', WP_LANG_DIR . '/invoicing/invoicing-' . $locale . '.mo' );
+        load_plugin_textdomain( 'invoicing', false, WPINV_PLUGIN_DIR . 'languages' );
+
+        /**
+         * Define language constants.
+         */
+        require_once( WPINV_PLUGIN_DIR . 'language.php' );
+    }
+
+    /**
+     * Include required core files used in admin and on the frontend.
+     */
+    public function includes() {
+
+        // Start with the settings.
+        require_once( WPINV_PLUGIN_DIR . 'includes/admin/register-settings.php' );
+
+        // Packages/libraries.
+        require_once( WPINV_PLUGIN_DIR . 'vendor/autoload.php' );
+        require_once( WPINV_PLUGIN_DIR . 'vendor/ayecode/wp-ayecode-ui/ayecode-ui-loader.php' );
+        require_once( WPINV_PLUGIN_DIR . 'includes/libraries/action-scheduler/action-scheduler.php' );
+
+        // Load functions.
+        require_once( WPINV_PLUGIN_DIR . 'includes/deprecated-functions.php' );
+        require_once( WPINV_PLUGIN_DIR . 'includes/wpinv-email-functions.php' );
+        require_once( WPINV_PLUGIN_DIR . 'includes/wpinv-general-functions.php' );
+        require_once( WPINV_PLUGIN_DIR . 'includes/wpinv-helper-functions.php' );
+        require_once( WPINV_PLUGIN_DIR . 'includes/wpinv-tax-functions.php' );
+        require_once( WPINV_PLUGIN_DIR . 'includes/wpinv-template-functions.php' );
+        require_once( WPINV_PLUGIN_DIR . 'includes/wpinv-address-functions.php' );
+        require_once( WPINV_PLUGIN_DIR . 'includes/invoice-functions.php' );
+        require_once( WPINV_PLUGIN_DIR . 'includes/wpinv-item-functions.php' );
+        require_once( WPINV_PLUGIN_DIR . 'includes/wpinv-discount-functions.php' );
+        require_once( WPINV_PLUGIN_DIR . 'includes/wpinv-gateway-functions.php' );
+        require_once( WPINV_PLUGIN_DIR . 'includes/wpinv-payment-functions.php' );
+        require_once( WPINV_PLUGIN_DIR . 'includes/wpinv-user-functions.php' );
+        require_once( WPINV_PLUGIN_DIR . 'includes/error-functions.php' );
+
+        // Register autoloader.
+        try {
+            spl_autoload_register( array( $this, 'autoload' ), true );
+        } catch ( Exception $e ) {
+            wpinv_error_log( $e->getMessage(), '', __FILE__, 149, true );
+        }
+
+        require_once( WPINV_PLUGIN_DIR . 'includes/abstracts/abstract-wpinv-session.php' );
+        require_once( WPINV_PLUGIN_DIR . 'includes/class-wpinv-session-handler.php' );
+        require_once( WPINV_PLUGIN_DIR . 'includes/class-wpinv-ajax.php' );
+        require_once( WPINV_PLUGIN_DIR . 'includes/class-wpinv-api.php' );
+        require_once( WPINV_PLUGIN_DIR . 'includes/class-wpinv-reports.php' );
+        require_once( WPINV_PLUGIN_DIR . 'includes/class-wpinv-cache-helper.php' );
+        require_once( WPINV_PLUGIN_DIR . 'includes/class-wpinv-db.php' );
+        require_once( WPINV_PLUGIN_DIR . 'includes/admin/subscriptions.php' );
+        require_once( WPINV_PLUGIN_DIR . 'includes/class-wpinv-subscriptions-db.php' );
+        require_once( WPINV_PLUGIN_DIR . 'includes/class-wpinv-subscriptions.php' );
+        require_once( WPINV_PLUGIN_DIR . 'includes/wpinv-subscription.php' );
+        require_once( WPINV_PLUGIN_DIR . 'includes/abstracts/abstract-wpinv-privacy.php' );
+        require_once( WPINV_PLUGIN_DIR . 'includes/class-wpinv-privacy.php' );
+        require_once( WPINV_PLUGIN_DIR . 'includes/libraries/class-ayecode-addons.php' );
+        require_once( WPINV_PLUGIN_DIR . 'includes/class-wpinv-addons.php' );
+        require_once( WPINV_PLUGIN_DIR . 'widgets/checkout.php' );
+        require_once( WPINV_PLUGIN_DIR . 'widgets/invoice-history.php' );
+        require_once( WPINV_PLUGIN_DIR . 'widgets/invoice-receipt.php' );
+        require_once( WPINV_PLUGIN_DIR . 'widgets/invoice-messages.php' );
+        require_once( WPINV_PLUGIN_DIR . 'widgets/subscriptions.php' );
+        require_once( WPINV_PLUGIN_DIR . 'widgets/buy-item.php' );
+        require_once( WPINV_PLUGIN_DIR . 'widgets/getpaid.php' );
+        require_once( WPINV_PLUGIN_DIR . 'includes/class-wpinv-payment-form-elements.php' );
+
+        /**
+         * Load the tax class.
+         */
+        if ( ! class_exists( 'WPInv_EUVat' ) ) {
+            require_once( WPINV_PLUGIN_DIR . 'includes/libraries/wpinv-euvat/class-wpinv-euvat.php' );
+        }
+
+        $gateways = array_keys( wpinv_get_enabled_payment_gateways() );
+        if ( !empty( $gateways ) ) {
+            foreach ( $gateways as $gateway ) {
+                if ( $gateway == 'manual' ) {
+                    continue;
+                }
+
+                $gateway_file = WPINV_PLUGIN_DIR . 'includes/gateways/' . $gateway . '.php';
+
+                if ( file_exists( $gateway_file ) ) {
+                    require_once( $gateway_file );
+                }
+            }
+        }
+
+        if ( is_admin() || ( defined( 'WP_CLI' ) && WP_CLI ) ) {
+            GetPaid_Post_Types_Admin::init();
+
+            require_once( WPINV_PLUGIN_DIR . 'includes/admin/wpinv-upgrade-functions.php' );
+            require_once( WPINV_PLUGIN_DIR . 'includes/admin/wpinv-admin-functions.php' );
+            //require_once( WPINV_PLUGIN_DIR . 'includes/admin/class-wpinv-recurring-admin.php' );
+            require_once( WPINV_PLUGIN_DIR . 'includes/admin/meta-boxes/class-mb-payment-form.php' );
+            require_once( WPINV_PLUGIN_DIR . 'includes/admin/meta-boxes/class-mb-invoice-notes.php' );
+            require_once( WPINV_PLUGIN_DIR . 'includes/admin/admin-pages.php' );
+            require_once( WPINV_PLUGIN_DIR . 'includes/admin/class-wpinv-admin-menus.php' );
+            require_once( WPINV_PLUGIN_DIR . 'includes/admin/class-wpinv-users.php' );
+            require_once( WPINV_PLUGIN_DIR . 'includes/admin/class-getpaid-admin-profile.php' );
+            //require_once( WPINV_PLUGIN_DIR . 'includes/admin/subscriptions.php' );
+            // load the user class only on the users.php page
+            global $pagenow;
+            if($pagenow=='users.php'){
+                new WPInv_Admin_Users();
+            }
+        }
+
+        // Register cli commands
+        if ( defined( 'WP_CLI' ) && WP_CLI ) {
+            require_once( WPINV_PLUGIN_DIR . 'includes/class-wpinv-cli.php' );
+            WP_CLI::add_command( 'invoicing', 'WPInv_CLI' );
+        }
+
+        // include css inliner
+        if ( ! class_exists( 'Emogrifier' ) && class_exists( 'DOMDocument' ) ) {
+            include_once( WPINV_PLUGIN_DIR . 'includes/libraries/class-emogrifier.php' );
+        }
+
+        require_once( WPINV_PLUGIN_DIR . 'includes/admin/install.php' );
+    }
+
+    /**
+     * Class autoloader
+     *
+     * @param       string $class_name The name of the class to load.
+     * @access      public
+     * @since       1.0.19
+     * @return      void
+     */
+    public function autoload( $class_name ) {
+
+        // Normalize the class name...
+        $class_name  = strtolower( $class_name );
+
+        // ... and make sure it is our class.
+        if ( false === strpos( $class_name, 'getpaid_' ) && false === strpos( $class_name, 'wpinv_' ) ) {
+            return;
+        }
+
+        // Next, prepare the file name from the class.
+        $file_name = 'class-' . str_replace( '_', '-', $class_name ) . '.php';
+
+        // Base path of the classes.
+        $plugin_path = untrailingslashit( WPINV_PLUGIN_DIR );
+
+        // And an array of possible locations in order of importance.
+        $locations = array(
+            "$plugin_path/includes",
+            "$plugin_path/includes/data-stores",
+            "$plugin_path/includes/gateways",
+            "$plugin_path/includes/api",
+            "$plugin_path/includes/admin",
+            "$plugin_path/includes/admin/meta-boxes",
+        );
+
+        foreach ( apply_filters( 'getpaid_autoload_locations', $locations ) as $location ) {
+
+            if ( file_exists( trailingslashit( $location ) . $file_name ) ) {
+                include trailingslashit( $location ) . $file_name;
+                break;
+            }
+
+        }
+
+    }
+
+    /**
+     * Inits hooks etc.
+     */
+    public function init() {
+
+        // Fires before getpaid inits.
+        do_action( 'before_getpaid_init', $this );
+
+        // Load default gateways.
+        $gateways = apply_filters(
+            'getpaid_default_gateways',
+            array(
+                'manual'        => 'GetPaid_Manual_Gateway',
+                'paypal'        => 'GetPaid_Paypal_Gateway',
+                'worldpay'      => 'GetPaid_Worldpay_Gateway',
+                'bank_transfer' => 'GetPaid_Bank_Transfer_Gateway',
+                'authorizenet'  => 'GetPaid_Authorize_Net_Gateway',
+            )
+        );
+
+        foreach ( $gateways as $id => $class ) {
+            $this->gateways[ $id ] = new $class();
+        }
+
+        // Fires after getpaid inits.
+        do_action( 'getpaid_init', $this );
+
+    }
+
+    /**
+     * Checks if this is an IPN request and processes it.
+     */
+    public function maybe_process_ipn() {
+
+        // Ensure that this is an IPN request.
+        if ( empty( $_GET['wpi-listener'] ) || 'IPN' !== $_GET['wpi-listener'] || empty( $_GET['wpi-gateway'] ) ) {
+            return;
+        }
+
+        $gateway = wpinv_clean( $_GET['wpi-gateway'] );
+
+        do_action( 'wpinv_verify_payment_ipn', $gateway );
+        do_action( "wpinv_verify_{$gateway}_ipn" );
+        exit;
+
+    }
+
+    public function enqueue_scripts() {
+        $suffix       = defined( 'SCRIPT_DEBUG' ) && SCRIPT_DEBUG ? '' : '.min';
+
+        $version = filemtime( WPINV_PLUGIN_DIR . 'assets/css/invoice-front.css' );
+        wp_register_style( 'wpinv_front_style', WPINV_PLUGIN_URL . 'assets/css/invoice-front.css', array(), $version );
+        wp_enqueue_style( 'wpinv_front_style' );
+
+        // Register scripts
+        wp_register_script( 'jquery-blockui', WPINV_PLUGIN_URL . 'assets/js/jquery.blockUI.min.js', array( 'jquery' ), '2.70', true );
+        wp_register_script( 'wpinv-front-script', WPINV_PLUGIN_URL . 'assets/js/invoice-front.js', array( 'jquery' ),  filemtime( WPINV_PLUGIN_DIR . 'assets/js/invoice-front.js' ) );
+
+        $localize                         = array();
+        $localize['ajax_url']             = admin_url( 'admin-ajax.php' );
+        $localize['nonce']                = wp_create_nonce( 'wpinv-nonce' );
+        $localize['currency_symbol']      = wpinv_currency_symbol();
+        $localize['currency_pos']         = wpinv_currency_position();
+        $localize['thousand_sep']         = wpinv_thousands_separator();
+        $localize['decimal_sep']          = wpinv_decimal_separator();
+        $localize['decimals']             = wpinv_decimals();
+        $localize['txtComplete']          = __( 'Continue', 'invoicing' );
+        $localize['UseTaxes']             = wpinv_use_taxes();
+        $localize['checkoutNonce']        = wp_create_nonce( 'wpinv_checkout_nonce' );
+        $localize['formNonce']            = wp_create_nonce( 'getpaid_form_nonce' );
+        $localize['connectionError']      = __( 'Could not establish a connection to the server.', 'invoicing' );
+
+        $localize = apply_filters( 'wpinv_front_js_localize', $localize );
+
+        wp_enqueue_script( 'jquery-blockui' );
+        $autofill_api = wpinv_get_option('address_autofill_api');
+        $autofill_active = wpinv_get_option('address_autofill_active');
+        if ( isset( $autofill_active ) && 1 == $autofill_active && !empty( $autofill_api ) && wpinv_is_checkout() ) {
+            if ( wp_script_is( 'google-maps-api', 'enqueued' ) ) {
+                wp_dequeue_script( 'google-maps-api' );
+            }
+            wp_enqueue_script( 'google-maps-api', 'https://maps.googleapis.com/maps/api/js?key=' . $autofill_api . '&libraries=places', array( 'jquery' ), '', false );
+            wp_enqueue_script( 'google-maps-init', WPINV_PLUGIN_URL . 'assets/js/gaaf.js', array( 'jquery', 'google-maps-api' ), '', true );
+        }
+
+        wp_enqueue_style( "select2", WPINV_PLUGIN_URL . 'assets/css/select2/select2.css', array(), WPINV_VERSION, 'all' );
+        wp_enqueue_script('select2', WPINV_PLUGIN_URL . 'assets/js/select2/select2.full' . $suffix . '.js', array( 'jquery' ), WPINV_VERSION );
+
+        wp_enqueue_script( 'wpinv-front-script' );
+        wp_localize_script( 'wpinv-front-script', 'WPInv', $localize );
+
+        $version = filemtime( WPINV_PLUGIN_DIR . 'assets/js/payment-forms.js' );
+        wp_enqueue_script( 'wpinv-payment-form-script', WPINV_PLUGIN_URL . 'assets/js/payment-forms.js', array( 'wpinv-front-script', 'wp-hooks' ),  $version, true );
+    }
+
+    public function wpinv_actions() {
+        if ( isset( $_REQUEST['wpi_action'] ) ) {
+            do_action( 'wpinv_' . wpinv_sanitize_key( $_REQUEST['wpi_action'] ), $_REQUEST );
+        }
+    }
+
+    public function pre_get_posts( $wp_query ) {
+        if ( ! is_admin() && !empty( $wp_query->query_vars['post_type'] ) && $wp_query->query_vars['post_type'] == 'wpi_invoice' && is_user_logged_in() && is_single() && $wp_query->is_main_query() ) {
+            $wp_query->query_vars['post_status'] = array_keys( wpinv_get_invoice_statuses() );
+        }
+
+        return $wp_query;
+    }
+
+    public function bp_invoicing_init() {
+        require_once( WPINV_PLUGIN_DIR . 'includes/class-wpinv-bp-core.php' );
+    }
+
+    /**
+     * Register widgets
+     *
+     */
+    public function register_widgets() {
+        $widgets = apply_filters(
+            'getpaid_widget_classes',
+            array(
+                'WPInv_Checkout_Widget',
+                'WPInv_History_Widget',
+                'WPInv_Receipt_Widget',
+                'WPInv_Subscriptions_Widget',
+                'WPInv_Buy_Item_Widget',
+                'WPInv_Messages_Widget',
+                'WPInv_GetPaid_Widget'
+            )
+        );
+
+        foreach ( $widgets as $widget ) {
+            register_widget( $widget );
+        }
 		
-	}
+    }
 
-	/**
-	 * Remove our pages from yoast sitemaps.
-	 *
-	 * @since 1.0.19
-	 * @param int[] $excluded_posts_ids
-	 */
-	public function wpseo_exclude_from_sitemap_by_post_ids( $excluded_posts_ids ){
+    /**
+     * Remove our pages from yoast sitemaps.
+     *
+     * @since 1.0.19
+     * @param int[] $excluded_posts_ids
+     */
+    public function wpseo_exclude_from_sitemap_by_post_ids( $excluded_posts_ids ){
 
-		// Ensure that we have an array.
-		if ( ! is_array( $excluded_posts_ids ) ) {
-			$excluded_posts_ids = array();
-		}
+        // Ensure that we have an array.
+        if ( ! is_array( $excluded_posts_ids ) ) {
+            $excluded_posts_ids = array();
+        }
 
-		// Prepare our pages.
-		$our_pages = array();
+        // Prepare our pages.
+        $our_pages = array();
 
-		// Checkout page.
-		$our_pages[] = wpinv_get_option( 'checkout_page', false );
+        // Checkout page.
+        $our_pages[] = wpinv_get_option( 'checkout_page', false );
 
-		// Success page.
-		$our_pages[] = wpinv_get_option( 'success_page', false );
+        // Success page.
+        $our_pages[] = wpinv_get_option( 'success_page', false );
 
-		// Failure page.
-		$our_pages[] = wpinv_get_option( 'failure_page', false );
+        // Failure page.
+        $our_pages[] = wpinv_get_option( 'failure_page', false );
 
-		// History page.
-		$our_pages[] = wpinv_get_option( 'invoice_history_page', false );
+        // History page.
+        $our_pages[] = wpinv_get_option( 'invoice_history_page', false );
 
-		// Subscriptions page.
-		$our_pages[] = wpinv_get_option( 'invoice_subscription_page', false );
+        // Subscriptions page.
+        $our_pages[] = wpinv_get_option( 'invoice_subscription_page', false );
 
-		$our_pages   = array_map( 'intval', array_filter( $our_pages ) );
+        $our_pages   = array_map( 'intval', array_filter( $our_pages ) );
 
-		$excluded_posts_ids = $excluded_posts_ids + $our_pages;
-		return array_unique( $excluded_posts_ids );
+        $excluded_posts_ids = $excluded_posts_ids + $our_pages;
+        return array_unique( $excluded_posts_ids );
 
-	}
+    }
 
-	public function wp_footer() {
-		echo '
+    public function wp_footer() {
+        echo '
 			<div class="bsui">
 				<div  id="getpaid-payment-modal" class="modal" tabindex="-1" role="dialog">
 					<div class="modal-dialog modal-dialog-centered modal-lg" role="checkout" style="max-width: 650px;">
@@ -526,6 +526,6 @@ 
 				</div>
 			</div>
 		';
-	}
+    }
 
 }

Spacing +166 added lines, -166 removed lines

@@ -6,7 +6,7 @@ 
  * @since   1.0.0
  */
 
-defined( 'ABSPATH' ) || exit;
+defined('ABSPATH') || exit;
 
 /**
  * Main Invoicing class.
@@ -63,8 +63,8 @@ 
 	 * @param string $prop The prop to set.
 	 * @param mixed $value The value to retrieve.
 	 */
-	public function set( $prop, $value ) {
-		$this->data[ $prop ] = $value;
+	public function set($prop, $value) {
+		$this->data[$prop] = $value;
 	}
 
 	/**
@@ -73,10 +73,10 @@ 
 	 * @param string $prop The prop to set.
 	 * @return mixed The value.
 	 */
-	public function get( $prop ) {
+	public function get($prop) {
 
-		if ( isset( $this->data[ $prop ] ) ) {
-			return $this->data[ $prop ];
+		if (isset($this->data[$prop])) {
+			return $this->data[$prop];
 		}
 
 		return null;
@@ -88,29 +88,29 @@ 
 	public function set_properties() {
 
 		// Sessions.
-		$this->set( 'session', new WPInv_Session_Handler() );
-		$GLOBALS['wpi_session'] = $this->get( 'session' ); // Backwards compatibility.
+		$this->set('session', new WPInv_Session_Handler());
+		$GLOBALS['wpi_session'] = $this->get('session'); // Backwards compatibility.
 		$this->form_elements = new WPInv_Payment_Form_Elements();
 		$this->tax           = new WPInv_EUVat();
 		$this->tax->init();
 		$GLOBALS['wpinv_euvat'] = $this->tax; // Backwards compatibility.
 
 		// Init other objects.
-		$this->set( 'reports', new WPInv_Reports() ); // TODO: Refactor.
-		$this->set( 'session', new WPInv_Session_Handler() );
-		$this->set( 'notes', new WPInv_Notes() );
-		$this->set( 'api', new WPInv_API() );
-		$this->set( 'post_types', new GetPaid_Post_Types() );
-		$this->set( 'template', new GetPaid_Template() );
-		$this->set( 'admin', new GetPaid_Admin() );
+		$this->set('reports', new WPInv_Reports()); // TODO: Refactor.
+		$this->set('session', new WPInv_Session_Handler());
+		$this->set('notes', new WPInv_Notes());
+		$this->set('api', new WPInv_API());
+		$this->set('post_types', new GetPaid_Post_Types());
+		$this->set('template', new GetPaid_Template());
+		$this->set('admin', new GetPaid_Admin());
 	}
 
 	 /**
 	 * Define plugin constants.
 	 */
 	public function define_constants() {
-		define( 'WPINV_PLUGIN_DIR', plugin_dir_path( WPINV_PLUGIN_FILE ) );
-		define( 'WPINV_PLUGIN_URL', plugin_dir_url( WPINV_PLUGIN_FILE ) );
+		define('WPINV_PLUGIN_DIR', plugin_dir_path(WPINV_PLUGIN_FILE));
+		define('WPINV_PLUGIN_URL', plugin_dir_url(WPINV_PLUGIN_FILE));
 		$this->version = WPINV_VERSION;
 	}
 
@@ -121,26 +121,26 @@ 
 	 */
 	protected function init_hooks() {
 		/* Internationalize the text strings used. */
-		add_action( 'plugins_loaded', array( &$this, 'plugins_loaded' ) );
+		add_action('plugins_loaded', array(&$this, 'plugins_loaded'));
 
 		// Init the plugin after WordPress inits.
-		add_action( 'init', array( $this, 'init' ), 1 );
-		add_action( 'getpaid_init', array( $this, 'maybe_process_ipn' ), 5 );
-		add_action( 'init', array( &$this, 'wpinv_actions' ) );
+		add_action('init', array($this, 'init'), 1);
+		add_action('getpaid_init', array($this, 'maybe_process_ipn'), 5);
+		add_action('init', array(&$this, 'wpinv_actions'));
 
-		if ( class_exists( 'BuddyPress' ) ) {
-			add_action( 'bp_include', array( &$this, 'bp_invoicing_init' ) );
+		if (class_exists('BuddyPress')) {
+			add_action('bp_include', array(&$this, 'bp_invoicing_init'));
 		}
 
-		add_action( 'wp_enqueue_scripts', array( &$this, 'enqueue_scripts' ) );
-		add_action( 'wp_footer', array( &$this, 'wp_footer' ) );
-		add_action( 'widgets_init', array( &$this, 'register_widgets' ) );
-		add_filter( 'wpseo_exclude_from_sitemap_by_post_ids', array( $this, 'wpseo_exclude_from_sitemap_by_post_ids' ) );
-		add_filter( 'pre_get_posts', array( &$this, 'pre_get_posts' ) );
+		add_action('wp_enqueue_scripts', array(&$this, 'enqueue_scripts'));
+		add_action('wp_footer', array(&$this, 'wp_footer'));
+		add_action('widgets_init', array(&$this, 'register_widgets'));
+		add_filter('wpseo_exclude_from_sitemap_by_post_ids', array($this, 'wpseo_exclude_from_sitemap_by_post_ids'));
+		add_filter('pre_get_posts', array(&$this, 'pre_get_posts'));
 
 		// Fires after registering actions.
-		do_action( 'wpinv_actions', $this );
-		do_action( 'getpaid_actions', $this );
+		do_action('wpinv_actions', $this);
+		do_action('getpaid_actions', $this);
 
 	}
 
@@ -148,10 +148,10 @@ 
 		/* Internationalize the text strings used. */
 		$this->load_textdomain();
 
-		do_action( 'wpinv_loaded' );
+		do_action('wpinv_loaded');
 
 		// Fix oxygen page builder conflict
-		if ( function_exists( 'ct_css_output' ) ) {
+		if (function_exists('ct_css_output')) {
 			wpinv_oxygen_fix_conflict();
 		}
 	}
@@ -161,21 +161,21 @@ 
 	 *
 	 * @since 1.0
 	 */
-	public function load_textdomain( $locale = NULL ) {
-		if ( empty( $locale ) ) {
-			$locale = is_admin() && function_exists( 'get_user_locale' ) ? get_user_locale() : get_locale();
+	public function load_textdomain($locale = NULL) {
+		if (empty($locale)) {
+			$locale = is_admin() && function_exists('get_user_locale') ? get_user_locale() : get_locale();
 		}
 
-		$locale = apply_filters( 'plugin_locale', $locale, 'invoicing' );
+		$locale = apply_filters('plugin_locale', $locale, 'invoicing');
 
-		unload_textdomain( 'invoicing' );
-		load_textdomain( 'invoicing', WP_LANG_DIR . '/invoicing/invoicing-' . $locale . '.mo' );
-		load_plugin_textdomain( 'invoicing', false, WPINV_PLUGIN_DIR . 'languages' );
+		unload_textdomain('invoicing');
+		load_textdomain('invoicing', WP_LANG_DIR . '/invoicing/invoicing-' . $locale . '.mo');
+		load_plugin_textdomain('invoicing', false, WPINV_PLUGIN_DIR . 'languages');
 
 		/**
 		 * Define language constants.
 		 */
-		require_once( WPINV_PLUGIN_DIR . 'language.php' );
+		require_once(WPINV_PLUGIN_DIR . 'language.php');
 	}
 
 	/**
@@ -184,114 +184,114 @@ 
 	public function includes() {
 
 		// Start with the settings.
-		require_once( WPINV_PLUGIN_DIR . 'includes/admin/register-settings.php' );
+		require_once(WPINV_PLUGIN_DIR . 'includes/admin/register-settings.php');
 
 		// Packages/libraries.
-		require_once( WPINV_PLUGIN_DIR . 'vendor/autoload.php' );
-		require_once( WPINV_PLUGIN_DIR . 'vendor/ayecode/wp-ayecode-ui/ayecode-ui-loader.php' );
-		require_once( WPINV_PLUGIN_DIR . 'includes/libraries/action-scheduler/action-scheduler.php' );
+		require_once(WPINV_PLUGIN_DIR . 'vendor/autoload.php');
+		require_once(WPINV_PLUGIN_DIR . 'vendor/ayecode/wp-ayecode-ui/ayecode-ui-loader.php');
+		require_once(WPINV_PLUGIN_DIR . 'includes/libraries/action-scheduler/action-scheduler.php');
 
 		// Load functions.
-		require_once( WPINV_PLUGIN_DIR . 'includes/deprecated-functions.php' );
-		require_once( WPINV_PLUGIN_DIR . 'includes/wpinv-email-functions.php' );
-		require_once( WPINV_PLUGIN_DIR . 'includes/wpinv-general-functions.php' );
-		require_once( WPINV_PLUGIN_DIR . 'includes/wpinv-helper-functions.php' );
-		require_once( WPINV_PLUGIN_DIR . 'includes/wpinv-tax-functions.php' );
-		require_once( WPINV_PLUGIN_DIR . 'includes/wpinv-template-functions.php' );
-		require_once( WPINV_PLUGIN_DIR . 'includes/wpinv-address-functions.php' );
-		require_once( WPINV_PLUGIN_DIR . 'includes/invoice-functions.php' );
-		require_once( WPINV_PLUGIN_DIR . 'includes/wpinv-item-functions.php' );
-		require_once( WPINV_PLUGIN_DIR . 'includes/wpinv-discount-functions.php' );
-		require_once( WPINV_PLUGIN_DIR . 'includes/wpinv-gateway-functions.php' );
-		require_once( WPINV_PLUGIN_DIR . 'includes/wpinv-payment-functions.php' );
-		require_once( WPINV_PLUGIN_DIR . 'includes/wpinv-user-functions.php' );
-		require_once( WPINV_PLUGIN_DIR . 'includes/error-functions.php' );
+		require_once(WPINV_PLUGIN_DIR . 'includes/deprecated-functions.php');
+		require_once(WPINV_PLUGIN_DIR . 'includes/wpinv-email-functions.php');
+		require_once(WPINV_PLUGIN_DIR . 'includes/wpinv-general-functions.php');
+		require_once(WPINV_PLUGIN_DIR . 'includes/wpinv-helper-functions.php');
+		require_once(WPINV_PLUGIN_DIR . 'includes/wpinv-tax-functions.php');
+		require_once(WPINV_PLUGIN_DIR . 'includes/wpinv-template-functions.php');
+		require_once(WPINV_PLUGIN_DIR . 'includes/wpinv-address-functions.php');
+		require_once(WPINV_PLUGIN_DIR . 'includes/invoice-functions.php');
+		require_once(WPINV_PLUGIN_DIR . 'includes/wpinv-item-functions.php');
+		require_once(WPINV_PLUGIN_DIR . 'includes/wpinv-discount-functions.php');
+		require_once(WPINV_PLUGIN_DIR . 'includes/wpinv-gateway-functions.php');
+		require_once(WPINV_PLUGIN_DIR . 'includes/wpinv-payment-functions.php');
+		require_once(WPINV_PLUGIN_DIR . 'includes/wpinv-user-functions.php');
+		require_once(WPINV_PLUGIN_DIR . 'includes/error-functions.php');
 
 		// Register autoloader.
 		try {
-			spl_autoload_register( array( $this, 'autoload' ), true );
-		} catch ( Exception $e ) {
-			wpinv_error_log( $e->getMessage(), '', __FILE__, 149, true );
+			spl_autoload_register(array($this, 'autoload'), true);
+		} catch (Exception $e) {
+			wpinv_error_log($e->getMessage(), '', __FILE__, 149, true);
 		}
 
-		require_once( WPINV_PLUGIN_DIR . 'includes/abstracts/abstract-wpinv-session.php' );
-		require_once( WPINV_PLUGIN_DIR . 'includes/class-wpinv-session-handler.php' );
-		require_once( WPINV_PLUGIN_DIR . 'includes/class-wpinv-ajax.php' );
-		require_once( WPINV_PLUGIN_DIR . 'includes/class-wpinv-api.php' );
-		require_once( WPINV_PLUGIN_DIR . 'includes/class-wpinv-reports.php' );
-		require_once( WPINV_PLUGIN_DIR . 'includes/class-wpinv-cache-helper.php' );
-		require_once( WPINV_PLUGIN_DIR . 'includes/class-wpinv-db.php' );
-		require_once( WPINV_PLUGIN_DIR . 'includes/admin/subscriptions.php' );
-		require_once( WPINV_PLUGIN_DIR . 'includes/class-wpinv-subscriptions-db.php' );
-		require_once( WPINV_PLUGIN_DIR . 'includes/class-wpinv-subscriptions.php' );
-		require_once( WPINV_PLUGIN_DIR . 'includes/wpinv-subscription.php' );
-		require_once( WPINV_PLUGIN_DIR . 'includes/abstracts/abstract-wpinv-privacy.php' );
-		require_once( WPINV_PLUGIN_DIR . 'includes/class-wpinv-privacy.php' );
-		require_once( WPINV_PLUGIN_DIR . 'includes/libraries/class-ayecode-addons.php' );
-		require_once( WPINV_PLUGIN_DIR . 'includes/class-wpinv-addons.php' );
-		require_once( WPINV_PLUGIN_DIR . 'widgets/checkout.php' );
-		require_once( WPINV_PLUGIN_DIR . 'widgets/invoice-history.php' );
-		require_once( WPINV_PLUGIN_DIR . 'widgets/invoice-receipt.php' );
-		require_once( WPINV_PLUGIN_DIR . 'widgets/invoice-messages.php' );
-		require_once( WPINV_PLUGIN_DIR . 'widgets/subscriptions.php' );
-		require_once( WPINV_PLUGIN_DIR . 'widgets/buy-item.php' );
-		require_once( WPINV_PLUGIN_DIR . 'widgets/getpaid.php' );
-		require_once( WPINV_PLUGIN_DIR . 'includes/class-wpinv-payment-form-elements.php' );
+		require_once(WPINV_PLUGIN_DIR . 'includes/abstracts/abstract-wpinv-session.php');
+		require_once(WPINV_PLUGIN_DIR . 'includes/class-wpinv-session-handler.php');
+		require_once(WPINV_PLUGIN_DIR . 'includes/class-wpinv-ajax.php');
+		require_once(WPINV_PLUGIN_DIR . 'includes/class-wpinv-api.php');
+		require_once(WPINV_PLUGIN_DIR . 'includes/class-wpinv-reports.php');
+		require_once(WPINV_PLUGIN_DIR . 'includes/class-wpinv-cache-helper.php');
+		require_once(WPINV_PLUGIN_DIR . 'includes/class-wpinv-db.php');
+		require_once(WPINV_PLUGIN_DIR . 'includes/admin/subscriptions.php');
+		require_once(WPINV_PLUGIN_DIR . 'includes/class-wpinv-subscriptions-db.php');
+		require_once(WPINV_PLUGIN_DIR . 'includes/class-wpinv-subscriptions.php');
+		require_once(WPINV_PLUGIN_DIR . 'includes/wpinv-subscription.php');
+		require_once(WPINV_PLUGIN_DIR . 'includes/abstracts/abstract-wpinv-privacy.php');
+		require_once(WPINV_PLUGIN_DIR . 'includes/class-wpinv-privacy.php');
+		require_once(WPINV_PLUGIN_DIR . 'includes/libraries/class-ayecode-addons.php');
+		require_once(WPINV_PLUGIN_DIR . 'includes/class-wpinv-addons.php');
+		require_once(WPINV_PLUGIN_DIR . 'widgets/checkout.php');
+		require_once(WPINV_PLUGIN_DIR . 'widgets/invoice-history.php');
+		require_once(WPINV_PLUGIN_DIR . 'widgets/invoice-receipt.php');
+		require_once(WPINV_PLUGIN_DIR . 'widgets/invoice-messages.php');
+		require_once(WPINV_PLUGIN_DIR . 'widgets/subscriptions.php');
+		require_once(WPINV_PLUGIN_DIR . 'widgets/buy-item.php');
+		require_once(WPINV_PLUGIN_DIR . 'widgets/getpaid.php');
+		require_once(WPINV_PLUGIN_DIR . 'includes/class-wpinv-payment-form-elements.php');
 
 		/**
 		 * Load the tax class.
 		 */
-		if ( ! class_exists( 'WPInv_EUVat' ) ) {
-			require_once( WPINV_PLUGIN_DIR . 'includes/libraries/wpinv-euvat/class-wpinv-euvat.php' );
+		if (!class_exists('WPInv_EUVat')) {
+			require_once(WPINV_PLUGIN_DIR . 'includes/libraries/wpinv-euvat/class-wpinv-euvat.php');
 		}
 
-		$gateways = array_keys( wpinv_get_enabled_payment_gateways() );
-		if ( !empty( $gateways ) ) {
-			foreach ( $gateways as $gateway ) {
-				if ( $gateway == 'manual' ) {
+		$gateways = array_keys(wpinv_get_enabled_payment_gateways());
+		if (!empty($gateways)) {
+			foreach ($gateways as $gateway) {
+				if ($gateway == 'manual') {
 					continue;
 				}
 
 				$gateway_file = WPINV_PLUGIN_DIR . 'includes/gateways/' . $gateway . '.php';
 
-				if ( file_exists( $gateway_file ) ) {
-					require_once( $gateway_file );
+				if (file_exists($gateway_file)) {
+					require_once($gateway_file);
 				}
 			}
 		}
 
-		if ( is_admin() || ( defined( 'WP_CLI' ) && WP_CLI ) ) {
+		if (is_admin() || (defined('WP_CLI') && WP_CLI)) {
 			GetPaid_Post_Types_Admin::init();
 
-			require_once( WPINV_PLUGIN_DIR . 'includes/admin/wpinv-upgrade-functions.php' );
-			require_once( WPINV_PLUGIN_DIR . 'includes/admin/wpinv-admin-functions.php' );
+			require_once(WPINV_PLUGIN_DIR . 'includes/admin/wpinv-upgrade-functions.php');
+			require_once(WPINV_PLUGIN_DIR . 'includes/admin/wpinv-admin-functions.php');
 			//require_once( WPINV_PLUGIN_DIR . 'includes/admin/class-wpinv-recurring-admin.php' );
-			require_once( WPINV_PLUGIN_DIR . 'includes/admin/meta-boxes/class-mb-payment-form.php' );
-			require_once( WPINV_PLUGIN_DIR . 'includes/admin/meta-boxes/class-mb-invoice-notes.php' );
-			require_once( WPINV_PLUGIN_DIR . 'includes/admin/admin-pages.php' );
-			require_once( WPINV_PLUGIN_DIR . 'includes/admin/class-wpinv-admin-menus.php' );
-			require_once( WPINV_PLUGIN_DIR . 'includes/admin/class-wpinv-users.php' );
-			require_once( WPINV_PLUGIN_DIR . 'includes/admin/class-getpaid-admin-profile.php' );
+			require_once(WPINV_PLUGIN_DIR . 'includes/admin/meta-boxes/class-mb-payment-form.php');
+			require_once(WPINV_PLUGIN_DIR . 'includes/admin/meta-boxes/class-mb-invoice-notes.php');
+			require_once(WPINV_PLUGIN_DIR . 'includes/admin/admin-pages.php');
+			require_once(WPINV_PLUGIN_DIR . 'includes/admin/class-wpinv-admin-menus.php');
+			require_once(WPINV_PLUGIN_DIR . 'includes/admin/class-wpinv-users.php');
+			require_once(WPINV_PLUGIN_DIR . 'includes/admin/class-getpaid-admin-profile.php');
 			//require_once( WPINV_PLUGIN_DIR . 'includes/admin/subscriptions.php' );
 			// load the user class only on the users.php page
 			global $pagenow;
-			if($pagenow=='users.php'){
+			if ($pagenow == 'users.php') {
 				new WPInv_Admin_Users();
 			}
 		}
 
 		// Register cli commands
-		if ( defined( 'WP_CLI' ) && WP_CLI ) {
-			require_once( WPINV_PLUGIN_DIR . 'includes/class-wpinv-cli.php' );
-			WP_CLI::add_command( 'invoicing', 'WPInv_CLI' );
+		if (defined('WP_CLI') && WP_CLI) {
+			require_once(WPINV_PLUGIN_DIR . 'includes/class-wpinv-cli.php');
+			WP_CLI::add_command('invoicing', 'WPInv_CLI');
 		}
 
 		// include css inliner
-		if ( ! class_exists( 'Emogrifier' ) && class_exists( 'DOMDocument' ) ) {
-			include_once( WPINV_PLUGIN_DIR . 'includes/libraries/class-emogrifier.php' );
+		if (!class_exists('Emogrifier') && class_exists('DOMDocument')) {
+			include_once(WPINV_PLUGIN_DIR . 'includes/libraries/class-emogrifier.php');
 		}
 
-		require_once( WPINV_PLUGIN_DIR . 'includes/admin/install.php' );
+		require_once(WPINV_PLUGIN_DIR . 'includes/admin/install.php');
 	}
 
 	/**
@@ -302,21 +302,21 @@ 
 	 * @since       1.0.19
 	 * @return      void
 	 */
-	public function autoload( $class_name ) {
+	public function autoload($class_name) {
 
 		// Normalize the class name...
-		$class_name  = strtolower( $class_name );
+		$class_name = strtolower($class_name);
 
 		// ... and make sure it is our class.
-		if ( false === strpos( $class_name, 'getpaid_' ) && false === strpos( $class_name, 'wpinv_' ) ) {
+		if (false === strpos($class_name, 'getpaid_') && false === strpos($class_name, 'wpinv_')) {
 			return;
 		}
 
 		// Next, prepare the file name from the class.
-		$file_name = 'class-' . str_replace( '_', '-', $class_name ) . '.php';
+		$file_name = 'class-' . str_replace('_', '-', $class_name) . '.php';
 
 		// Base path of the classes.
-		$plugin_path = untrailingslashit( WPINV_PLUGIN_DIR );
+		$plugin_path = untrailingslashit(WPINV_PLUGIN_DIR);
 
 		// And an array of possible locations in order of importance.
 		$locations = array(
@@ -328,10 +328,10 @@ 
 			"$plugin_path/includes/admin/meta-boxes",
 		);
 
-		foreach ( apply_filters( 'getpaid_autoload_locations', $locations ) as $location ) {
+		foreach (apply_filters('getpaid_autoload_locations', $locations) as $location) {
 
-			if ( file_exists( trailingslashit( $location ) . $file_name ) ) {
-				include trailingslashit( $location ) . $file_name;
+			if (file_exists(trailingslashit($location) . $file_name)) {
+				include trailingslashit($location) . $file_name;
 				break;
 			}
 
@@ -345,7 +345,7 @@ 
 	public function init() {
 
 		// Fires before getpaid inits.
-		do_action( 'before_getpaid_init', $this );
+		do_action('before_getpaid_init', $this);
 
 		// Load default gateways.
 		$gateways = apply_filters(
@@ -359,12 +359,12 @@ 
 			)
 		);
 
-		foreach ( $gateways as $id => $class ) {
-			$this->gateways[ $id ] = new $class();
+		foreach ($gateways as $id => $class) {
+			$this->gateways[$id] = new $class();
 		}
 
 		// Fires after getpaid inits.
-		do_action( 'getpaid_init', $this );
+		do_action('getpaid_init', $this);
 
 	}
 
@@ -374,82 +374,82 @@ 
 	public function maybe_process_ipn() {
 
 		// Ensure that this is an IPN request.
-		if ( empty( $_GET['wpi-listener'] ) || 'IPN' !== $_GET['wpi-listener'] || empty( $_GET['wpi-gateway'] ) ) {
+		if (empty($_GET['wpi-listener']) || 'IPN' !== $_GET['wpi-listener'] || empty($_GET['wpi-gateway'])) {
 			return;
 		}
 
-		$gateway = wpinv_clean( $_GET['wpi-gateway'] );
+		$gateway = wpinv_clean($_GET['wpi-gateway']);
 
-		do_action( 'wpinv_verify_payment_ipn', $gateway );
-		do_action( "wpinv_verify_{$gateway}_ipn" );
+		do_action('wpinv_verify_payment_ipn', $gateway);
+		do_action("wpinv_verify_{$gateway}_ipn");
 		exit;
 
 	}
 
 	public function enqueue_scripts() {
-		$suffix       = defined( 'SCRIPT_DEBUG' ) && SCRIPT_DEBUG ? '' : '.min';
+		$suffix = defined('SCRIPT_DEBUG') && SCRIPT_DEBUG ? '' : '.min';
 
-		$version = filemtime( WPINV_PLUGIN_DIR . 'assets/css/invoice-front.css' );
-		wp_register_style( 'wpinv_front_style', WPINV_PLUGIN_URL . 'assets/css/invoice-front.css', array(), $version );
-		wp_enqueue_style( 'wpinv_front_style' );
+		$version = filemtime(WPINV_PLUGIN_DIR . 'assets/css/invoice-front.css');
+		wp_register_style('wpinv_front_style', WPINV_PLUGIN_URL . 'assets/css/invoice-front.css', array(), $version);
+		wp_enqueue_style('wpinv_front_style');
 
 		// Register scripts
-		wp_register_script( 'jquery-blockui', WPINV_PLUGIN_URL . 'assets/js/jquery.blockUI.min.js', array( 'jquery' ), '2.70', true );
-		wp_register_script( 'wpinv-front-script', WPINV_PLUGIN_URL . 'assets/js/invoice-front.js', array( 'jquery' ),  filemtime( WPINV_PLUGIN_DIR . 'assets/js/invoice-front.js' ) );
+		wp_register_script('jquery-blockui', WPINV_PLUGIN_URL . 'assets/js/jquery.blockUI.min.js', array('jquery'), '2.70', true);
+		wp_register_script('wpinv-front-script', WPINV_PLUGIN_URL . 'assets/js/invoice-front.js', array('jquery'), filemtime(WPINV_PLUGIN_DIR . 'assets/js/invoice-front.js'));
 
 		$localize                         = array();
-		$localize['ajax_url']             = admin_url( 'admin-ajax.php' );
-		$localize['nonce']                = wp_create_nonce( 'wpinv-nonce' );
+		$localize['ajax_url']             = admin_url('admin-ajax.php');
+		$localize['nonce']                = wp_create_nonce('wpinv-nonce');
 		$localize['currency_symbol']      = wpinv_currency_symbol();
 		$localize['currency_pos']         = wpinv_currency_position();
 		$localize['thousand_sep']         = wpinv_thousands_separator();
 		$localize['decimal_sep']          = wpinv_decimal_separator();
 		$localize['decimals']             = wpinv_decimals();
-		$localize['txtComplete']          = __( 'Continue', 'invoicing' );
+		$localize['txtComplete']          = __('Continue', 'invoicing');
 		$localize['UseTaxes']             = wpinv_use_taxes();
-		$localize['checkoutNonce']        = wp_create_nonce( 'wpinv_checkout_nonce' );
-		$localize['formNonce']            = wp_create_nonce( 'getpaid_form_nonce' );
-		$localize['connectionError']      = __( 'Could not establish a connection to the server.', 'invoicing' );
+		$localize['checkoutNonce']        = wp_create_nonce('wpinv_checkout_nonce');
+		$localize['formNonce']            = wp_create_nonce('getpaid_form_nonce');
+		$localize['connectionError']      = __('Could not establish a connection to the server.', 'invoicing');
 
-		$localize = apply_filters( 'wpinv_front_js_localize', $localize );
+		$localize = apply_filters('wpinv_front_js_localize', $localize);
 
-		wp_enqueue_script( 'jquery-blockui' );
+		wp_enqueue_script('jquery-blockui');
 		$autofill_api = wpinv_get_option('address_autofill_api');
 		$autofill_active = wpinv_get_option('address_autofill_active');
-		if ( isset( $autofill_active ) && 1 == $autofill_active && !empty( $autofill_api ) && wpinv_is_checkout() ) {
-			if ( wp_script_is( 'google-maps-api', 'enqueued' ) ) {
-				wp_dequeue_script( 'google-maps-api' );
+		if (isset($autofill_active) && 1 == $autofill_active && !empty($autofill_api) && wpinv_is_checkout()) {
+			if (wp_script_is('google-maps-api', 'enqueued')) {
+				wp_dequeue_script('google-maps-api');
 			}
-			wp_enqueue_script( 'google-maps-api', 'https://maps.googleapis.com/maps/api/js?key=' . $autofill_api . '&libraries=places', array( 'jquery' ), '', false );
-			wp_enqueue_script( 'google-maps-init', WPINV_PLUGIN_URL . 'assets/js/gaaf.js', array( 'jquery', 'google-maps-api' ), '', true );
+			wp_enqueue_script('google-maps-api', 'https://maps.googleapis.com/maps/api/js?key=' . $autofill_api . '&libraries=places', array('jquery'), '', false);
+			wp_enqueue_script('google-maps-init', WPINV_PLUGIN_URL . 'assets/js/gaaf.js', array('jquery', 'google-maps-api'), '', true);
 		}
 
-		wp_enqueue_style( "select2", WPINV_PLUGIN_URL . 'assets/css/select2/select2.css', array(), WPINV_VERSION, 'all' );
-		wp_enqueue_script('select2', WPINV_PLUGIN_URL . 'assets/js/select2/select2.full' . $suffix . '.js', array( 'jquery' ), WPINV_VERSION );
+		wp_enqueue_style("select2", WPINV_PLUGIN_URL . 'assets/css/select2/select2.css', array(), WPINV_VERSION, 'all');
+		wp_enqueue_script('select2', WPINV_PLUGIN_URL . 'assets/js/select2/select2.full' . $suffix . '.js', array('jquery'), WPINV_VERSION);
 
-		wp_enqueue_script( 'wpinv-front-script' );
-		wp_localize_script( 'wpinv-front-script', 'WPInv', $localize );
+		wp_enqueue_script('wpinv-front-script');
+		wp_localize_script('wpinv-front-script', 'WPInv', $localize);
 
-		$version = filemtime( WPINV_PLUGIN_DIR . 'assets/js/payment-forms.js' );
-		wp_enqueue_script( 'wpinv-payment-form-script', WPINV_PLUGIN_URL . 'assets/js/payment-forms.js', array( 'wpinv-front-script', 'wp-hooks' ),  $version, true );
+		$version = filemtime(WPINV_PLUGIN_DIR . 'assets/js/payment-forms.js');
+		wp_enqueue_script('wpinv-payment-form-script', WPINV_PLUGIN_URL . 'assets/js/payment-forms.js', array('wpinv-front-script', 'wp-hooks'), $version, true);
 	}
 
 	public function wpinv_actions() {
-		if ( isset( $_REQUEST['wpi_action'] ) ) {
-			do_action( 'wpinv_' . wpinv_sanitize_key( $_REQUEST['wpi_action'] ), $_REQUEST );
+		if (isset($_REQUEST['wpi_action'])) {
+			do_action('wpinv_' . wpinv_sanitize_key($_REQUEST['wpi_action']), $_REQUEST);
 		}
 	}
 
-	public function pre_get_posts( $wp_query ) {
-		if ( ! is_admin() && !empty( $wp_query->query_vars['post_type'] ) && $wp_query->query_vars['post_type'] == 'wpi_invoice' && is_user_logged_in() && is_single() && $wp_query->is_main_query() ) {
-			$wp_query->query_vars['post_status'] = array_keys( wpinv_get_invoice_statuses() );
+	public function pre_get_posts($wp_query) {
+		if (!is_admin() && !empty($wp_query->query_vars['post_type']) && $wp_query->query_vars['post_type'] == 'wpi_invoice' && is_user_logged_in() && is_single() && $wp_query->is_main_query()) {
+			$wp_query->query_vars['post_status'] = array_keys(wpinv_get_invoice_statuses());
 		}
 
 		return $wp_query;
 	}
 
 	public function bp_invoicing_init() {
-		require_once( WPINV_PLUGIN_DIR . 'includes/class-wpinv-bp-core.php' );
+		require_once(WPINV_PLUGIN_DIR . 'includes/class-wpinv-bp-core.php');
 	}
 
 	/**
@@ -470,8 +470,8 @@ 
 			)
 		);
 
-		foreach ( $widgets as $widget ) {
-			register_widget( $widget );
+		foreach ($widgets as $widget) {
+			register_widget($widget);
 		}
 		
 	}
@@ -482,10 +482,10 @@ 
 	 * @since 1.0.19
 	 * @param int[] $excluded_posts_ids
 	 */
-	public function wpseo_exclude_from_sitemap_by_post_ids( $excluded_posts_ids ){
+	public function wpseo_exclude_from_sitemap_by_post_ids($excluded_posts_ids) {
 
 		// Ensure that we have an array.
-		if ( ! is_array( $excluded_posts_ids ) ) {
+		if (!is_array($excluded_posts_ids)) {
 			$excluded_posts_ids = array();
 		}
 
@@ -493,24 +493,24 @@ 
 		$our_pages = array();
 
 		// Checkout page.
-		$our_pages[] = wpinv_get_option( 'checkout_page', false );
+		$our_pages[] = wpinv_get_option('checkout_page', false);
 
 		// Success page.
-		$our_pages[] = wpinv_get_option( 'success_page', false );
+		$our_pages[] = wpinv_get_option('success_page', false);
 
 		// Failure page.
-		$our_pages[] = wpinv_get_option( 'failure_page', false );
+		$our_pages[] = wpinv_get_option('failure_page', false);
 
 		// History page.
-		$our_pages[] = wpinv_get_option( 'invoice_history_page', false );
+		$our_pages[] = wpinv_get_option('invoice_history_page', false);
 
 		// Subscriptions page.
-		$our_pages[] = wpinv_get_option( 'invoice_subscription_page', false );
+		$our_pages[] = wpinv_get_option('invoice_subscription_page', false);
 
-		$our_pages   = array_map( 'intval', array_filter( $our_pages ) );
+		$our_pages   = array_map('intval', array_filter($our_pages));
 
 		$excluded_posts_ids = $excluded_posts_ids + $our_pages;
-		return array_unique( $excluded_posts_ids );
+		return array_unique($excluded_posts_ids);
 
 	}
 

includes/wpinv-subscription.php

Indentation +949 added lines, -949 removed lines

@@ -15,127 +15,127 @@ 
  */
 class WPInv_Subscription extends GetPaid_Data {
 
-	/**
-	 * Which data store to load.
-	 *
-	 * @var string
-	 */
-	protected $data_store_name = 'subscription';
-
-	/**
-	 * This is the name of this object type.
-	 *
-	 * @var string
-	 */
-	protected $object_type = 'subscription';
-
-	/**
-	 * Item Data array. This is the core item data exposed in APIs.
-	 *
-	 * @since 1.0.19
-	 * @var array
-	 */
-	protected $data = array(
-		'customer_id'       => 0,
-		'frequency'         => 1,
-		'period'            => 'D',
-		'initial_amount'    => null,
-		'recurring_amount'  => null,
-		'bill_times'        => 0,
-		'transaction_id'    => '',
-		'parent_payment_id' => null,
-		'product_id'        => 0,
-		'created'           => '0000-00-00 00:00:00',
-		'expiration'        => '0000-00-00 00:00:00',
-		'trial_period'      => null,
-		'status'            => 'pending',
-		'profile_id'        => '',
-		'gateway'           => '',
-		'customer'          => '',
-	);
-
-	/**
-	 * Stores the status transition information.
-	 *
-	 * @since 1.0.19
-	 * @var bool
-	 */
-	protected $status_transition = false;
-
-	private $subs_db;
-
-	/**
-	 * Get the subscription if ID is passed, otherwise the subscription is new and empty.
-	 *
-	 * @param  int|string|object|WPInv_Subscription $subscription Subscription id, profile_id, or object to read.
-	 * @param  bool $deprecated
-	 */
-	function __construct( $subscription = 0, $deprecated = false ) {
-
-		parent::__construct( $subscription );
-
-		if ( ! $deprecated && ! empty( $subscription ) && is_numeric( $subscription ) ) {
-			$this->set_id( $subscription );
-		} elseif ( $subscription instanceof self ) {
-			$this->set_id( $subscription->get_id() );
-		} elseif ( ! empty( $subscription->id ) ) {
-			$this->set_id( $subscription->id );
-		} elseif ( $deprecated && $subscription_id = self::get_subscription_id_by_field( $subscription, 'profile_id' ) ) {
-			$this->set_id( $subscription_id );
-		} else {
-			$this->set_object_read( true );
-		}
-
-		// Load the datastore.
-		$this->data_store = GetPaid_Data_Store::load( $this->data_store_name );
-
-		if ( $this->get_id() > 0 ) {
-			$this->data_store->read( $this );
-		}
-
-	}
-
-	/**
-	 * Given an invoice id, profile id, transaction id, it returns the subscription's id.
-	 *
-	 *
-	 * @static
-	 * @param string $value
-	 * @param string $field Either invoice_id, transaction_id or profile_id.
-	 * @since 1.0.19
-	 * @return int
-	 */
-	public static function get_subscription_id_by_field( $value, $field = 'profile_id' ) {
+    /**
+     * Which data store to load.
+     *
+     * @var string
+     */
+    protected $data_store_name = 'subscription';
+
+    /**
+     * This is the name of this object type.
+     *
+     * @var string
+     */
+    protected $object_type = 'subscription';
+
+    /**
+     * Item Data array. This is the core item data exposed in APIs.
+     *
+     * @since 1.0.19
+     * @var array
+     */
+    protected $data = array(
+        'customer_id'       => 0,
+        'frequency'         => 1,
+        'period'            => 'D',
+        'initial_amount'    => null,
+        'recurring_amount'  => null,
+        'bill_times'        => 0,
+        'transaction_id'    => '',
+        'parent_payment_id' => null,
+        'product_id'        => 0,
+        'created'           => '0000-00-00 00:00:00',
+        'expiration'        => '0000-00-00 00:00:00',
+        'trial_period'      => null,
+        'status'            => 'pending',
+        'profile_id'        => '',
+        'gateway'           => '',
+        'customer'          => '',
+    );
+
+    /**
+     * Stores the status transition information.
+     *
+     * @since 1.0.19
+     * @var bool
+     */
+    protected $status_transition = false;
+
+    private $subs_db;
+
+    /**
+     * Get the subscription if ID is passed, otherwise the subscription is new and empty.
+     *
+     * @param  int|string|object|WPInv_Subscription $subscription Subscription id, profile_id, or object to read.
+     * @param  bool $deprecated
+     */
+    function __construct( $subscription = 0, $deprecated = false ) {
+
+        parent::__construct( $subscription );
+
+        if ( ! $deprecated && ! empty( $subscription ) && is_numeric( $subscription ) ) {
+            $this->set_id( $subscription );
+        } elseif ( $subscription instanceof self ) {
+            $this->set_id( $subscription->get_id() );
+        } elseif ( ! empty( $subscription->id ) ) {
+            $this->set_id( $subscription->id );
+        } elseif ( $deprecated && $subscription_id = self::get_subscription_id_by_field( $subscription, 'profile_id' ) ) {
+            $this->set_id( $subscription_id );
+        } else {
+            $this->set_object_read( true );
+        }
+
+        // Load the datastore.
+        $this->data_store = GetPaid_Data_Store::load( $this->data_store_name );
+
+        if ( $this->get_id() > 0 ) {
+            $this->data_store->read( $this );
+        }
+
+    }
+
+    /**
+     * Given an invoice id, profile id, transaction id, it returns the subscription's id.
+     *
+     *
+     * @static
+     * @param string $value
+     * @param string $field Either invoice_id, transaction_id or profile_id.
+     * @since 1.0.19
+     * @return int
+     */
+    public static function get_subscription_id_by_field( $value, $field = 'profile_id' ) {
         global $wpdb;
 
-		// Trim the value.
-		$value = trim( $value );
+        // Trim the value.
+        $value = trim( $value );
 
-		if ( empty( $value ) ) {
-			return 0;
-		}
+        if ( empty( $value ) ) {
+            return 0;
+        }
 
-		if ( 'invoice_id' == $field ) {
-			$field = 'parent_payment_id';
-		}
+        if ( 'invoice_id' == $field ) {
+            $field = 'parent_payment_id';
+        }
 
         // Valid fields.
         $fields = array(
-			'parent_payment_id',
-			'transaction_id',
-			'profile_id'
-		);
-
-		// Ensure a field has been passed.
-		if ( empty( $field ) || ! in_array( $field, $fields ) ) {
-			return 0;
-		}
-
-		// Maybe retrieve from the cache.
-		$subscription_id   = wp_cache_get( $value, "getpaid_subscription_{$field}s_to_subscription_ids" );
-		if ( ! empty( $subscription_id ) ) {
-			return $subscription_id;
-		}
+            'parent_payment_id',
+            'transaction_id',
+            'profile_id'
+        );
+
+        // Ensure a field has been passed.
+        if ( empty( $field ) || ! in_array( $field, $fields ) ) {
+            return 0;
+        }
+
+        // Maybe retrieve from the cache.
+        $subscription_id   = wp_cache_get( $value, "getpaid_subscription_{$field}s_to_subscription_ids" );
+        if ( ! empty( $subscription_id ) ) {
+            return $subscription_id;
+        }
 
         // Fetch from the db.
         $table            = $wpdb->prefix . 'wpinv_subscriptions';
@@ -143,34 +143,34 @@ 
             $wpdb->prepare( "SELECT `id` FROM $table WHERE `$field`=%s LIMIT 1", $value )
         );
 
-		if ( empty( $subscription_id ) ) {
-			return 0;
-		}
+        if ( empty( $subscription_id ) ) {
+            return 0;
+        }
 
-		// Update the cache with our data.
-		wp_cache_set( $value, $subscription_id, "getpaid_subscription_{$field}s_to_subscription_ids" );
+        // Update the cache with our data.
+        wp_cache_set( $value, $subscription_id, "getpaid_subscription_{$field}s_to_subscription_ids" );
 
-		return $subscription_id;
-	}
+        return $subscription_id;
+    }
 
-	/**
+    /**
      * Clears the subscription's cache.
      */
     public function clear_cache() {
-		wp_cache_delete( $this->get_parent_payment_id(), 'getpaid_subscription_parent_payment_ids_to_subscription_ids' );
-		wp_cache_delete( $this->get_transaction_id(), 'getpaid_subscription_transaction_ids_to_subscription_ids' );
-		wp_cache_delete( $this->get_profile_id(), 'getpaid_subscription_profile_ids_to_subscription_ids' );
-		wp_cache_delete( $this->get_id(), 'getpaid_subscriptions' );
-	}
+        wp_cache_delete( $this->get_parent_payment_id(), 'getpaid_subscription_parent_payment_ids_to_subscription_ids' );
+        wp_cache_delete( $this->get_transaction_id(), 'getpaid_subscription_transaction_ids_to_subscription_ids' );
+        wp_cache_delete( $this->get_profile_id(), 'getpaid_subscription_profile_ids_to_subscription_ids' );
+        wp_cache_delete( $this->get_id(), 'getpaid_subscriptions' );
+    }
 
-	/**
+    /**
      * Checks if a subscription key is set.
      */
     public function _isset( $key ) {
         return isset( $this->data[$key] ) || method_exists( $this, "get_$key" );
-	}
+    }
 
-	/*
+    /*
 	|--------------------------------------------------------------------------
 	| CRUD methods
 	|--------------------------------------------------------------------------
@@ -179,57 +179,57 @@ 
 	|
     */
 
-	/*
+    /*
 	|--------------------------------------------------------------------------
 	| Getters
 	|--------------------------------------------------------------------------
 	*/
 
-	/**
-	 * Get customer id.
-	 *
-	 * @since 1.0.19
-	 * @param  string $context View or edit context.
-	 * @return int
-	 */
-	public function get_customer_id( $context = 'view' ) {
-		return (int) $this->get_prop( 'customer_id', $context );
-	}
-
-	/**
-	 * Get customer information.
-	 *
-	 * @since 1.0.19
-	 * @param  string $context View or edit context.
-	 * @return WP_User|false WP_User object on success, false on failure.
-	 */
-	public function get_customer( $context = 'view' ) {
-		return get_userdata( $this->get_customer_id( $context ) );
-	}
-
-	/**
-	 * Get parent invoice id.
-	 *
-	 * @since 1.0.19
-	 * @param  string $context View or edit context.
-	 * @return int
-	 */
-	public function get_parent_invoice_id( $context = 'view' ) {
-		return (int) $this->get_prop( 'parent_payment_id', $context );
-	}
-
-	/**
-	 * Alias for self::get_parent_invoice_id().
-	 *
-	 * @since 1.0.19
-	 * @param  string $context View or edit context.
-	 * @return int
-	 */
+    /**
+     * Get customer id.
+     *
+     * @since 1.0.19
+     * @param  string $context View or edit context.
+     * @return int
+     */
+    public function get_customer_id( $context = 'view' ) {
+        return (int) $this->get_prop( 'customer_id', $context );
+    }
+
+    /**
+     * Get customer information.
+     *
+     * @since 1.0.19
+     * @param  string $context View or edit context.
+     * @return WP_User|false WP_User object on success, false on failure.
+     */
+    public function get_customer( $context = 'view' ) {
+        return get_userdata( $this->get_customer_id( $context ) );
+    }
+
+    /**
+     * Get parent invoice id.
+     *
+     * @since 1.0.19
+     * @param  string $context View or edit context.
+     * @return int
+     */
+    public function get_parent_invoice_id( $context = 'view' ) {
+        return (int) $this->get_prop( 'parent_payment_id', $context );
+    }
+
+    /**
+     * Alias for self::get_parent_invoice_id().
+     *
+     * @since 1.0.19
+     * @param  string $context View or edit context.
+     * @return int
+     */
     public function get_parent_payment_id( $context = 'view' ) {
         return $this->get_parent_invoice_id( $context );
-	}
+    }
 
-	/**
+    /**
      * Alias for self::get_parent_invoice_id().
      *
      * @since  1.0.0
@@ -239,390 +239,390 @@ 
         return $this->get_parent_invoice_id( $context );
     }
 
-	/**
-	 * Get parent invoice.
-	 *
-	 * @since 1.0.19
-	 * @param  string $context View or edit context.
-	 * @return WPInv_Invoice
-	 */
-	public function get_parent_invoice( $context = 'view' ) {
-		return new WPInv_Invoice( $this->get_parent_invoice_id( $context ) );
-	}
-
-	/**
-	 * Alias for self::get_parent_invoice().
-	 *
-	 * @since 1.0.19
-	 * @param  string $context View or edit context.
-	 * @return WPInv_Invoice
-	 */
+    /**
+     * Get parent invoice.
+     *
+     * @since 1.0.19
+     * @param  string $context View or edit context.
+     * @return WPInv_Invoice
+     */
+    public function get_parent_invoice( $context = 'view' ) {
+        return new WPInv_Invoice( $this->get_parent_invoice_id( $context ) );
+    }
+
+    /**
+     * Alias for self::get_parent_invoice().
+     *
+     * @since 1.0.19
+     * @param  string $context View or edit context.
+     * @return WPInv_Invoice
+     */
     public function get_parent_payment( $context = 'view' ) {
         return $this->get_parent_invoice( $context );
-	}
-
-	/**
-	 * Get subscription's product id.
-	 *
-	 * @since 1.0.19
-	 * @param  string $context View or edit context.
-	 * @return int
-	 */
-	public function get_product_id( $context = 'view' ) {
-		return (int) $this->get_prop( 'product_id', $context );
-	}
-
-	/**
-	 * Get the subscription product.
-	 *
-	 * @since 1.0.19
-	 * @param  string $context View or edit context.
-	 * @return WPInv_Item
-	 */
-	public function get_product( $context = 'view' ) {
-		return new WPInv_Item( $this->get_product_id( $context ) );
-	}
-
-	/**
-	 * Get parent invoice's gateway.
-	 *
-	 * Here for backwards compatibility.
-	 *
-	 * @since 1.0.19
-	 * @param  string $context View or edit context.
-	 * @return string
-	 */
-	public function get_gateway( $context = 'view' ) {
-		return $this->get_parent_invoice( $context )->get_gateway();
-	}
-
-	/**
-	 * Get the period of a renewal.
-	 *
-	 * @since 1.0.19
-	 * @param  string $context View or edit context.
-	 * @return string
-	 */
-	public function get_period( $context = 'view' ) {
-		return $this->get_prop( 'period', $context );
-	}
-
-	/**
-	 * Get number of periods each renewal is valid for.
-	 *
-	 * @since 1.0.19
-	 * @param  string $context View or edit context.
-	 * @return int
-	 */
-	public function get_frequency( $context = 'view' ) {
-		return (int) $this->get_prop( 'frequency', $context );
-	}
-
-	/**
-	 * Get the initial amount for the subscription.
-	 *
-	 * @since 1.0.19
-	 * @param  string $context View or edit context.
-	 * @return float
-	 */
-	public function get_initial_amount( $context = 'view' ) {
-		return (float) wpinv_sanitize_amount( $this->get_prop( 'initial_amount', $context ) );
-	}
-
-	/**
-	 * Get the recurring amount for the subscription.
-	 *
-	 * @since 1.0.19
-	 * @param  string $context View or edit context.
-	 * @return float
-	 */
-	public function get_recurring_amount( $context = 'view' ) {
-		return (float) wpinv_sanitize_amount( $this->get_prop( 'recurring_amount', $context ) );
-	}
-
-	/**
-	 * Get number of times that this subscription can be renewed.
-	 *
-	 * @since 1.0.19
-	 * @param  string $context View or edit context.
-	 * @return int
-	 */
-	public function get_bill_times( $context = 'view' ) {
-		return (int) $this->get_prop( 'bill_times', $context );
-	}
-
-	/**
-	 * Get transaction id of this subscription's parent invoice.
-	 *
-	 * @since 1.0.19
-	 * @param  string $context View or edit context.
-	 * @return string
-	 */
-	public function get_transaction_id( $context = 'view' ) {
-		return $this->get_prop( 'transaction_id', $context );
-	}
-
-	/**
-	 * Get the date that the subscription was created.
-	 *
-	 * @since 1.0.19
-	 * @param  string $context View or edit context.
-	 * @return string
-	 */
-	public function get_created( $context = 'view' ) {
-		return $this->get_prop( 'created', $context );
-	}
-
-	/**
-	 * Alias for self::get_created().
-	 *
-	 * @since 1.0.19
-	 * @param  string $context View or edit context.
-	 * @return string
-	 */
-	public function get_date_created( $context = 'view' ) {
-		return $this->get_created( $context );
-	}
-
-	/**
-	 * Retrieves the creation date in a timestamp
-	 *
-	 * @since  1.0.0
-	 * @return int
-	 */
-	public function get_time_created() {
-		$created = $this->get_date_created();
-		return empty( $created ) ? current_time( 'timestamp' ) : strtotime( $created, current_time( 'timestamp' ) );
-	}
-
-	/**
-	 * Get GMT date when the subscription was created.
-	 *
-	 * @since 1.0.19
-	 * @param  string $context View or edit context.
-	 * @return string
-	 */
-	public function get_date_created_gmt( $context = 'view' ) {
+    }
+
+    /**
+     * Get subscription's product id.
+     *
+     * @since 1.0.19
+     * @param  string $context View or edit context.
+     * @return int
+     */
+    public function get_product_id( $context = 'view' ) {
+        return (int) $this->get_prop( 'product_id', $context );
+    }
+
+    /**
+     * Get the subscription product.
+     *
+     * @since 1.0.19
+     * @param  string $context View or edit context.
+     * @return WPInv_Item
+     */
+    public function get_product( $context = 'view' ) {
+        return new WPInv_Item( $this->get_product_id( $context ) );
+    }
+
+    /**
+     * Get parent invoice's gateway.
+     *
+     * Here for backwards compatibility.
+     *
+     * @since 1.0.19
+     * @param  string $context View or edit context.
+     * @return string
+     */
+    public function get_gateway( $context = 'view' ) {
+        return $this->get_parent_invoice( $context )->get_gateway();
+    }
+
+    /**
+     * Get the period of a renewal.
+     *
+     * @since 1.0.19
+     * @param  string $context View or edit context.
+     * @return string
+     */
+    public function get_period( $context = 'view' ) {
+        return $this->get_prop( 'period', $context );
+    }
+
+    /**
+     * Get number of periods each renewal is valid for.
+     *
+     * @since 1.0.19
+     * @param  string $context View or edit context.
+     * @return int
+     */
+    public function get_frequency( $context = 'view' ) {
+        return (int) $this->get_prop( 'frequency', $context );
+    }
+
+    /**
+     * Get the initial amount for the subscription.
+     *
+     * @since 1.0.19
+     * @param  string $context View or edit context.
+     * @return float
+     */
+    public function get_initial_amount( $context = 'view' ) {
+        return (float) wpinv_sanitize_amount( $this->get_prop( 'initial_amount', $context ) );
+    }
+
+    /**
+     * Get the recurring amount for the subscription.
+     *
+     * @since 1.0.19
+     * @param  string $context View or edit context.
+     * @return float
+     */
+    public function get_recurring_amount( $context = 'view' ) {
+        return (float) wpinv_sanitize_amount( $this->get_prop( 'recurring_amount', $context ) );
+    }
+
+    /**
+     * Get number of times that this subscription can be renewed.
+     *
+     * @since 1.0.19
+     * @param  string $context View or edit context.
+     * @return int
+     */
+    public function get_bill_times( $context = 'view' ) {
+        return (int) $this->get_prop( 'bill_times', $context );
+    }
+
+    /**
+     * Get transaction id of this subscription's parent invoice.
+     *
+     * @since 1.0.19
+     * @param  string $context View or edit context.
+     * @return string
+     */
+    public function get_transaction_id( $context = 'view' ) {
+        return $this->get_prop( 'transaction_id', $context );
+    }
+
+    /**
+     * Get the date that the subscription was created.
+     *
+     * @since 1.0.19
+     * @param  string $context View or edit context.
+     * @return string
+     */
+    public function get_created( $context = 'view' ) {
+        return $this->get_prop( 'created', $context );
+    }
+
+    /**
+     * Alias for self::get_created().
+     *
+     * @since 1.0.19
+     * @param  string $context View or edit context.
+     * @return string
+     */
+    public function get_date_created( $context = 'view' ) {
+        return $this->get_created( $context );
+    }
+
+    /**
+     * Retrieves the creation date in a timestamp
+     *
+     * @since  1.0.0
+     * @return int
+     */
+    public function get_time_created() {
+        $created = $this->get_date_created();
+        return empty( $created ) ? current_time( 'timestamp' ) : strtotime( $created, current_time( 'timestamp' ) );
+    }
+
+    /**
+     * Get GMT date when the subscription was created.
+     *
+     * @since 1.0.19
+     * @param  string $context View or edit context.
+     * @return string
+     */
+    public function get_date_created_gmt( $context = 'view' ) {
         $date = $this->get_date_created( $context );
 
         if ( $date ) {
             $date = get_gmt_from_date( $date );
         }
-		return $date;
-	}
-
-	/**
-	 * Get the date that the subscription will renew.
-	 *
-	 * @since 1.0.19
-	 * @param  string $context View or edit context.
-	 * @return string
-	 */
-	public function get_next_renewal_date( $context = 'view' ) {
-		return $this->get_prop( 'expiration', $context );
-	}
-
-	/**
-	 * Alias for self::get_next_renewal_date().
-	 *
-	 * @since 1.0.19
-	 * @param  string $context View or edit context.
-	 * @return string
-	 */
-	public function get_expiration( $context = 'view' ) {
-		return $this->get_next_renewal_date( $context );
-	}
-
-	/**
-	 * Retrieves the expiration date in a timestamp
-	 *
-	 * @since  1.0.0
-	 * @return int
-	 */
-	public function get_expiration_time() {
-		$expiration = $this->get_expiration();
-
-		if ( empty( $expiration ) || '0000-00-00 00:00:00' == $expiration ) {
-			return current_time( 'timestamp' );
-		}
-
-		$expiration = strtotime( $expiration, current_time( 'timestamp' ) );
-		return $expiration < current_time( 'timestamp' ) ? current_time( 'timestamp' ) : $expiration;
-	}
-
-	/**
-	 * Get GMT date when the subscription will renew.
-	 *
-	 * @since 1.0.19
-	 * @param  string $context View or edit context.
-	 * @return string
-	 */
-	public function get_next_renewal_date_gmt( $context = 'view' ) {
+        return $date;
+    }
+
+    /**
+     * Get the date that the subscription will renew.
+     *
+     * @since 1.0.19
+     * @param  string $context View or edit context.
+     * @return string
+     */
+    public function get_next_renewal_date( $context = 'view' ) {
+        return $this->get_prop( 'expiration', $context );
+    }
+
+    /**
+     * Alias for self::get_next_renewal_date().
+     *
+     * @since 1.0.19
+     * @param  string $context View or edit context.
+     * @return string
+     */
+    public function get_expiration( $context = 'view' ) {
+        return $this->get_next_renewal_date( $context );
+    }
+
+    /**
+     * Retrieves the expiration date in a timestamp
+     *
+     * @since  1.0.0
+     * @return int
+     */
+    public function get_expiration_time() {
+        $expiration = $this->get_expiration();
+
+        if ( empty( $expiration ) || '0000-00-00 00:00:00' == $expiration ) {
+            return current_time( 'timestamp' );
+        }
+
+        $expiration = strtotime( $expiration, current_time( 'timestamp' ) );
+        return $expiration < current_time( 'timestamp' ) ? current_time( 'timestamp' ) : $expiration;
+    }
+
+    /**
+     * Get GMT date when the subscription will renew.
+     *
+     * @since 1.0.19
+     * @param  string $context View or edit context.
+     * @return string
+     */
+    public function get_next_renewal_date_gmt( $context = 'view' ) {
         $date = $this->get_next_renewal_date( $context );
 
         if ( $date ) {
             $date = get_gmt_from_date( $date );
         }
-		return $date;
-	}
-
-	/**
-	 * Get the subscription's trial period.
-	 *
-	 * @since 1.0.19
-	 * @param  string $context View or edit context.
-	 * @return string
-	 */
-	public function get_trial_period( $context = 'view' ) {
-		return $this->get_prop( 'trial_period', $context );
-	}
-
-	/**
-	 * Get the subscription's status.
-	 *
-	 * @since 1.0.19
-	 * @param  string $context View or edit context.
-	 * @return string
-	 */
-	public function get_status( $context = 'view' ) {
-		return $this->get_prop( 'status', $context );
-	}
-
-	/**
-	 * Get the subscription's profile id.
-	 *
-	 * @since 1.0.19
-	 * @param  string $context View or edit context.
-	 * @return string
-	 */
-	public function get_profile_id( $context = 'view' ) {
-		return $this->get_prop( 'profile_id', $context );
-	}
-
-	/*
+        return $date;
+    }
+
+    /**
+     * Get the subscription's trial period.
+     *
+     * @since 1.0.19
+     * @param  string $context View or edit context.
+     * @return string
+     */
+    public function get_trial_period( $context = 'view' ) {
+        return $this->get_prop( 'trial_period', $context );
+    }
+
+    /**
+     * Get the subscription's status.
+     *
+     * @since 1.0.19
+     * @param  string $context View or edit context.
+     * @return string
+     */
+    public function get_status( $context = 'view' ) {
+        return $this->get_prop( 'status', $context );
+    }
+
+    /**
+     * Get the subscription's profile id.
+     *
+     * @since 1.0.19
+     * @param  string $context View or edit context.
+     * @return string
+     */
+    public function get_profile_id( $context = 'view' ) {
+        return $this->get_prop( 'profile_id', $context );
+    }
+
+    /*
 	|--------------------------------------------------------------------------
 	| Setters
 	|--------------------------------------------------------------------------
 	*/
 
-	/**
-	 * Set customer id.
-	 *
-	 * @since 1.0.19
-	 * @param  int $value The customer's id.
-	 */
-	public function set_customer_id( $value ) {
-		$this->set_prop( 'customer_id', (int) $value );
-	}
-
-	/**
-	 * Set parent invoice id.
-	 *
-	 * @since 1.0.19
-	 * @param  int $value The parent invoice id.
-	 */
-	public function set_parent_invoice_id( $value ) {
-		$this->set_prop( 'parent_payment_id', (int) $value );
-	}
-
-	/**
-	 * Alias for self::set_parent_invoice_id().
-	 *
-	 * @since 1.0.19
-	 * @param  int $value The parent invoice id.
-	 */
+    /**
+     * Set customer id.
+     *
+     * @since 1.0.19
+     * @param  int $value The customer's id.
+     */
+    public function set_customer_id( $value ) {
+        $this->set_prop( 'customer_id', (int) $value );
+    }
+
+    /**
+     * Set parent invoice id.
+     *
+     * @since 1.0.19
+     * @param  int $value The parent invoice id.
+     */
+    public function set_parent_invoice_id( $value ) {
+        $this->set_prop( 'parent_payment_id', (int) $value );
+    }
+
+    /**
+     * Alias for self::set_parent_invoice_id().
+     *
+     * @since 1.0.19
+     * @param  int $value The parent invoice id.
+     */
     public function set_parent_payment_id( $value ) {
         $this->set_parent_invoice_id( $value );
-	}
+    }
 
-	/**
+    /**
      * Alias for self::set_parent_invoice_id().
      *
      * @since 1.0.19
-	 * @param  int $value The parent invoice id.
+     * @param  int $value The parent invoice id.
      */
     public function set_original_payment_id( $value ) {
         $this->set_parent_invoice_id( $value );
-	}
-
-	/**
-	 * Set subscription's product id.
-	 *
-	 * @since 1.0.19
-	 * @param  int $value The subscription product id.
-	 */
-	public function set_product_id( $value ) {
-		$this->set_prop( 'product_id', (int) $value );
-	}
-
-	/**
-	 * Set the period of a renewal.
-	 *
-	 * @since 1.0.19
-	 * @param  string $value The renewal period.
-	 */
-	public function set_period( $value ) {
-		$this->set_prop( 'period', $value );
-	}
-
-	/**
-	 * Set number of periods each renewal is valid for.
-	 *
-	 * @since 1.0.19
-	 * @param  int $value The subscription frequency.
-	 */
-	public function set_frequency( $value ) {
-		$value = empty( $value ) ? 1 : (int) $value;
-		$this->set_prop( 'frequency', absint( $value ) );
-	}
-
-	/**
-	 * Set the initial amount for the subscription.
-	 *
-	 * @since 1.0.19
-	 * @param  float $value The initial subcription amount.
-	 */
-	public function set_initial_amount( $value ) {
-		$this->set_prop( 'initial_amount', wpinv_sanitize_amount( $value ) );
-	}
-
-	/**
-	 * Set the recurring amount for the subscription.
-	 *
-	 * @since 1.0.19
-	 * @param  float $value The recurring subcription amount.
-	 */
-	public function set_recurring_amount( $value ) {
-		$this->set_prop( 'recurring_amount', wpinv_sanitize_amount( $value ) );
-	}
-
-	/**
-	 * Set number of times that this subscription can be renewed.
-	 *
-	 * @since 1.0.19
-	 * @param  int $value Bill times.
-	 */
-	public function set_bill_times( $value ) {
-		$this->set_prop( 'bill_times', (int) $value );
-	}
-
-	/**
-	 * Get transaction id of this subscription's parent invoice.
-	 *
-	 * @since 1.0.19
-	 * @param string $value Bill times.
-	 */
-	public function set_transaction_id( $value ) {
-		$this->set_prop( 'transaction_id', sanitize_text_field( $value ) );
-	}
-
-	/**
-	 * Set date when this subscription started.
-	 *
-	 * @since 1.0.19
-	 * @param string $value strtotime compliant date.
-	 */
-	public function set_created( $value ) {
+    }
+
+    /**
+     * Set subscription's product id.
+     *
+     * @since 1.0.19
+     * @param  int $value The subscription product id.
+     */
+    public function set_product_id( $value ) {
+        $this->set_prop( 'product_id', (int) $value );
+    }
+
+    /**
+     * Set the period of a renewal.
+     *
+     * @since 1.0.19
+     * @param  string $value The renewal period.
+     */
+    public function set_period( $value ) {
+        $this->set_prop( 'period', $value );
+    }
+
+    /**
+     * Set number of periods each renewal is valid for.
+     *
+     * @since 1.0.19
+     * @param  int $value The subscription frequency.
+     */
+    public function set_frequency( $value ) {
+        $value = empty( $value ) ? 1 : (int) $value;
+        $this->set_prop( 'frequency', absint( $value ) );
+    }
+
+    /**
+     * Set the initial amount for the subscription.
+     *
+     * @since 1.0.19
+     * @param  float $value The initial subcription amount.
+     */
+    public function set_initial_amount( $value ) {
+        $this->set_prop( 'initial_amount', wpinv_sanitize_amount( $value ) );
+    }
+
+    /**
+     * Set the recurring amount for the subscription.
+     *
+     * @since 1.0.19
+     * @param  float $value The recurring subcription amount.
+     */
+    public function set_recurring_amount( $value ) {
+        $this->set_prop( 'recurring_amount', wpinv_sanitize_amount( $value ) );
+    }
+
+    /**
+     * Set number of times that this subscription can be renewed.
+     *
+     * @since 1.0.19
+     * @param  int $value Bill times.
+     */
+    public function set_bill_times( $value ) {
+        $this->set_prop( 'bill_times', (int) $value );
+    }
+
+    /**
+     * Get transaction id of this subscription's parent invoice.
+     *
+     * @since 1.0.19
+     * @param string $value Bill times.
+     */
+    public function set_transaction_id( $value ) {
+        $this->set_prop( 'transaction_id', sanitize_text_field( $value ) );
+    }
+
+    /**
+     * Set date when this subscription started.
+     *
+     * @since 1.0.19
+     * @param string $value strtotime compliant date.
+     */
+    public function set_created( $value ) {
         $date = strtotime( $value );
 
         if ( $date && $value !== '0000-00-00 00:00:00' ) {
@@ -630,94 +630,94 @@ 
             return;
         }
 
-		$this->set_prop( 'created', '' );
+        $this->set_prop( 'created', '' );
 
-	}
+    }
 
-	/**
-	 * Alias for self::set_created().
-	 *
-	 * @since 1.0.19
-	 * @param string $value strtotime compliant date.
-	 */
-	public function set_date_created( $value ) {
-		$this->set_created( $value );
+    /**
+     * Alias for self::set_created().
+     *
+     * @since 1.0.19
+     * @param string $value strtotime compliant date.
+     */
+    public function set_date_created( $value ) {
+        $this->set_created( $value );
     }
 
-	/**
-	 * Set the date that the subscription will renew.
-	 *
-	 * @since 1.0.19
-	 * @param string $value strtotime compliant date.
-	 */
-	public function set_next_renewal_date( $value ) {
-		$date = strtotime( $value );
+    /**
+     * Set the date that the subscription will renew.
+     *
+     * @since 1.0.19
+     * @param string $value strtotime compliant date.
+     */
+    public function set_next_renewal_date( $value ) {
+        $date = strtotime( $value );
 
         if ( $date && $value !== '0000-00-00 00:00:00' ) {
             $this->set_prop( 'expiration', date( 'Y-m-d H:i:s', $date ) );
             return;
-		}
-
-		$this->set_prop( 'expiration', '' );
-
-	}
-
-	/**
-	 * Alias for self::set_next_renewal_date().
-	 *
-	 * @since 1.0.19
-	 * @param string $value strtotime compliant date.
-	 */
-	public function set_expiration( $value ) {
-		$this->set_next_renewal_date( $value );
-    }
-
-	/**
-	 * Set the subscription's trial period.
-	 *
-	 * @since 1.0.19
-	 * @param string $value trial period e.g 1 year.
-	 */
-	public function set_trial_period( $value ) {
-		$this->set_prop( 'trial_period', $value );
-	}
-
-	/**
-	 * Set the subscription's status.
-	 *
-	 * @since 1.0.19
-	 * @param string $new_status    New subscription status.
-	 */
-	public function set_status( $new_status ) {
-
-		// Abort if this is not a valid status;
-		if ( ! array_key_exists( $new_status, getpaid_get_subscription_statuses() ) ) {
-			return;
-		}
-
-		$old_status = $this->get_status();
-		$this->set_prop( 'status', $new_status );
-
-		if ( true === $this->object_read && $old_status !== $new_status ) {
-			$this->status_transition = array(
-				'from'   => ! empty( $this->status_transition['from'] ) ? $this->status_transition['from'] : $old_status,
-				'to'     => $new_status,
-			);
-		}
-
-	}
-
-	/**
-	 * Set the subscription's (remote) profile id.
-	 *
-	 * @since 1.0.19
-	 * @param  string $value the remote profile id.
-	 */
-	public function set_profile_id( $value ) {
-		$this->set_prop( 'profile_id', sanitize_text_field( $value ) );
-	}
-
-	/*
+        }
+
+        $this->set_prop( 'expiration', '' );
+
+    }
+
+    /**
+     * Alias for self::set_next_renewal_date().
+     *
+     * @since 1.0.19
+     * @param string $value strtotime compliant date.
+     */
+    public function set_expiration( $value ) {
+        $this->set_next_renewal_date( $value );
+    }
+
+    /**
+     * Set the subscription's trial period.
+     *
+     * @since 1.0.19
+     * @param string $value trial period e.g 1 year.
+     */
+    public function set_trial_period( $value ) {
+        $this->set_prop( 'trial_period', $value );
+    }
+
+    /**
+     * Set the subscription's status.
+     *
+     * @since 1.0.19
+     * @param string $new_status    New subscription status.
+     */
+    public function set_status( $new_status ) {
+
+        // Abort if this is not a valid status;
+        if ( ! array_key_exists( $new_status, getpaid_get_subscription_statuses() ) ) {
+            return;
+        }
+
+        $old_status = $this->get_status();
+        $this->set_prop( 'status', $new_status );
+
+        if ( true === $this->object_read && $old_status !== $new_status ) {
+            $this->status_transition = array(
+                'from'   => ! empty( $this->status_transition['from'] ) ? $this->status_transition['from'] : $old_status,
+                'to'     => $new_status,
+            );
+        }
+
+    }
+
+    /**
+     * Set the subscription's (remote) profile id.
+     *
+     * @since 1.0.19
+     * @param  string $value the remote profile id.
+     */
+    public function set_profile_id( $value ) {
+        $this->set_prop( 'profile_id', sanitize_text_field( $value ) );
+    }
+
+    /*
 	|--------------------------------------------------------------------------
 	| Boolean methods
 	|--------------------------------------------------------------------------
@@ -726,45 +726,45 @@ 
 	|
 	*/
 
-	/**
+    /**
      * Checks if the subscription has a given status.
-	 *
-	 * @param string|array String or array of strings to check for.
-	 * @return bool
+     *
+     * @param string|array String or array of strings to check for.
+     * @return bool
      */
     public function has_status( $status ) {
         return in_array( $this->get_status(), wpinv_parse_list( $status ) );
-	}
+    }
 
-	/**
+    /**
      * Checks if the subscription has a trial period.
-	 *
-	 * @return bool
+     *
+     * @return bool
      */
     public function has_trial_period() {
-		$period = $this->get_trial_period();
+        $period = $this->get_trial_period();
         return ! empty( $period );
-	}
-
-	/**
-	 * Is the subscription active?
-	 *
-	 * @return bool
-	 */
-	public function is_active() {
-		return $this->has_status( 'active trialling' ) && $this->get_expiration_time() > current_time( 'mysql' );
-	}
-
-	/**
-	 * Is the subscription expired?
-	 *
-	 * @return bool
-	 */
-	public function is_expired() {
-		return $this->has_status( 'expired' ) || ( $this->has_status( 'active cancelled trialling' ) && $this->get_expiration_time() < current_time( 'mysql' ) );
-	}
-
-	/*
+    }
+
+    /**
+     * Is the subscription active?
+     *
+     * @return bool
+     */
+    public function is_active() {
+        return $this->has_status( 'active trialling' ) && $this->get_expiration_time() > current_time( 'mysql' );
+    }
+
+    /**
+     * Is the subscription expired?
+     *
+     * @return bool
+     */
+    public function is_expired() {
+        return $this->has_status( 'expired' ) || ( $this->has_status( 'active cancelled trialling' ) && $this->get_expiration_time() < current_time( 'mysql' ) );
+    }
+
+    /*
 	|--------------------------------------------------------------------------
 	| Additional methods
 	|--------------------------------------------------------------------------
@@ -773,27 +773,27 @@ 
 	|
 	*/
 
-	/**
-	 * Backwards compatibilty.
-	 */
-	public function create( $data = array() ) {
+    /**
+     * Backwards compatibilty.
+     */
+    public function create( $data = array() ) {
 
-		// Set the properties.
-		if ( is_array( $data ) ) {
-			$this->set_props( $data );
-		}
+        // Set the properties.
+        if ( is_array( $data ) ) {
+            $this->set_props( $data );
+        }
 
-		// Save the item.
-		return $this->save();
+        // Save the item.
+        return $this->save();
 
-	}
+    }
 
-	/**
-	 * Backwards compatibilty.
-	 */
-	public function update( $args = array() ) {
-		return $this->create( $args );
-	}
+    /**
+     * Backwards compatibilty.
+     */
+    public function update( $args = array() ) {
+        return $this->create( $args );
+    }
 
     /**
      * Retrieve renewal payments for a subscription
@@ -803,15 +803,15 @@ 
      */
     public function get_child_payments() {
         return get_posts(
-			array(
-            	'post_parent'    => $this->get_parent_payment_id(),
-            	'numberposts'    => -1,
-            	'post_status'    => array( 'publish', 'wpi-processing', 'wpi-renewal' ),
-            	'orderby'        => 'ID',
-            	'order'          => 'DESC',
-            	'post_type'      => 'wpi_invoice'
-			)
-		);
+            array(
+                'post_parent'    => $this->get_parent_payment_id(),
+                'numberposts'    => -1,
+                'post_status'    => array( 'publish', 'wpi-processing', 'wpi-renewal' ),
+                'orderby'        => 'ID',
+                'order'          => 'DESC',
+                'post_type'      => 'wpi_invoice'
+            )
+        );
     }
 
     /**
@@ -821,16 +821,16 @@ 
      * @return int
      */
     public function get_total_payments() {
-		global $wpdb;
+        global $wpdb;
 
-		$count = (int) $wpdb->get_var(
-			$wpdb->prepare(
-				"SELECT COUNT(ID) FROM $wpdb->posts WHERE post_parent=%d AND post_status IN ( 'publish', 'wpi-processing', 'wpi-renewal' )",
-				$this->get_parent_invoice_id()
-			)
-		);
+        $count = (int) $wpdb->get_var(
+            $wpdb->prepare(
+                "SELECT COUNT(ID) FROM $wpdb->posts WHERE post_parent=%d AND post_status IN ( 'publish', 'wpi-processing', 'wpi-renewal' )",
+                $this->get_parent_invoice_id()
+            )
+        );
 
-		// Maybe include parent invoice.
+        // Maybe include parent invoice.
         if ( ! $this->has_status( 'pending' ) ) {
             $count++;
         }
@@ -859,57 +859,57 @@ 
      *
      * @since  2.4
      * @param  array $args Array of values for the payment, including amount and transaction ID
-	 * @param  WPInv_Invoice $invoice If adding an existing invoice.
+     * @param  WPInv_Invoice $invoice If adding an existing invoice.
      * @return bool
      */
     public function add_payment( $args = array(), $invoice = false ) {
 
-		// Process each payment once.
+        // Process each payment once.
         if ( ! empty( $args['transaction_id'] ) && $this->payment_exists( $args['transaction_id'] ) ) {
             return false;
         }
 
-		// Are we creating a new invoice?
-		if ( empty( $invoice ) ) {
-			$invoice = $this->create_payment();
+        // Are we creating a new invoice?
+        if ( empty( $invoice ) ) {
+            $invoice = $this->create_payment();
 
-			if ( empty( $invoice ) ) {
-				return false;
-			}
+            if ( empty( $invoice ) ) {
+                return false;
+            }
 
-			$invoice->set_status( 'wpi-renewal' );
+            $invoice->set_status( 'wpi-renewal' );
 
-		}
+        }
 
-		// Maybe set a transaction id.
-		if ( ! empty( $args['transaction_id'] ) ) {
-			$invoice->set_transaction_id( $args['transaction_id'] );
-		}
+        // Maybe set a transaction id.
+        if ( ! empty( $args['transaction_id'] ) ) {
+            $invoice->set_transaction_id( $args['transaction_id'] );
+        }
 
-		// Set the completed date.
-		$invoice->set_completed_date( current_time( 'mysql' ) );
+        // Set the completed date.
+        $invoice->set_completed_date( current_time( 'mysql' ) );
 
-		// And the gateway.
-		if ( ! empty( $args['gateway'] ) ) {
-			$invoice->set_gateway( $args['gateway'] );
-		}
+        // And the gateway.
+        if ( ! empty( $args['gateway'] ) ) {
+            $invoice->set_gateway( $args['gateway'] );
+        }
 
-		$invoice->save();
+        $invoice->save();
 
-		if ( ! $invoice->get_id() ) {
-			return 0;
-		}
+        if ( ! $invoice->get_id() ) {
+            return 0;
+        }
 
-		do_action( 'getpaid_after_create_subscription_renewal_invoice', $invoice, $this );
-		do_action( 'wpinv_recurring_add_subscription_payment', $invoice, $this );
+        do_action( 'getpaid_after_create_subscription_renewal_invoice', $invoice, $this );
+        do_action( 'wpinv_recurring_add_subscription_payment', $invoice, $this );
         do_action( 'wpinv_recurring_record_payment', $invoice->get_id(), $this->get_parent_invoice_id(), $invoice->get_recurring_total(), $invoice->get_transaction_id() );
 
         update_post_meta( $invoice->get_id(), '_wpinv_subscription_id', $this->id );
 
         return $invoice->get_id();
-	}
+    }
 
-	/**
+    /**
      * Creates a new invoice and returns it.
      *
      * @since  1.0.19
@@ -917,104 +917,104 @@ 
      */
     public function create_payment() {
 
-		$parent_invoice = $this->get_parent_payment();
-
-		if ( ! $parent_invoice->get_id() ) {
-			return false;
-		}
-
-		// Duplicate the parent invoice.
-		$invoice = new WPInv_Invoice();
-		$invoice->set_props( $parent_invoice->get_data() );
-		$invoice->set_id( 0 );
-		$invoice->set_items( $parent_invoice->get_items() );
-		$invoice->set_parent_id( $parent_invoice->get_id() );
-		$invoice->set_transaction_id( '' );
-		$invoice->set_key( $invoice->generate_key( 'renewal_' ) );
-		$invoice->set_number( '' );
-		$invoice->set_completed_date( '' );
-		$invoice->set_status( 'wpi-pending' );
-		$invoice->recalculate_total();
-		$invoice->save();
-
-		return $invoice->get_id() ? $invoice : false;
-    }
-
-	/**
-	 * Renews or completes a subscription
-	 *
-	 * @since  1.0.0
-	 * @return int The subscription's id
-	 */
-	public function renew() {
-
-		// Complete subscription if applicable
-		if ( $this->get_bill_times() > 0 && $this->get_times_billed() >= $this->get_bill_times() ) {
-			return $this->complete();
-		}
-
-		// Calculate new expiration
-		$frequency      = $this->get_frequency();
-		$period         = $this->get_period();
-		$new_expiration = strtotime( "+ $frequency $period", $this->get_expiration_time() );
-
-		$this->set_expiration( date( 'Y-m-d H:i:s',$new_expiration ) );
-		$this->set_status( 'active' );
-		return $this->save();
-
-		do_action( 'getpaid_subscription_renewed', $this );
-
-	}
-
-	/**
-	 * Marks a subscription as completed
-	 *
-	 * Subscription is completed when the number of payments matches the billing_times field
-	 *
-	 * @since  1.0.0
-	 * @return int|bool Subscription id or false if the subscription is cancelled.
-	 */
-	public function complete() {
-
-		// Only mark a subscription as complete if it's not already cancelled.
-		if ( $this->has_status( 'cancelled' ) ) {
-			return false;
-		}
-
-		$this->set_status( 'completed' );
-		return $this->save();
-
-	}
-
-	/**
-	 * Marks a subscription as expired
-	 *
-	 * @since  1.0.0
-	 * @param  bool $check_expiration
-	 * @return int|bool Subscription id or false if $check_expiration is true and expiration date is in the future.
-	 */
-	public function expire( $check_expiration = false ) {
-
-		if ( $check_expiration && $this->get_expiration_time() > current_time( 'timestamp' ) ) {
-			// Do not mark as expired since real expiration date is in the future
-			return false;
-		}
-
-		$this->set_status( 'expired' );
-		return $this->save();
-
-	}
-
-	/**
-	 * Marks a subscription as failing
-	 *
-	 * @since  2.4.2
-	 * @return int Subscription id.
-	 */
-	public function failing() {
-		$this->set_status( 'failing' );
-		return $this->save();
-	}
+        $parent_invoice = $this->get_parent_payment();
+
+        if ( ! $parent_invoice->get_id() ) {
+            return false;
+        }
+
+        // Duplicate the parent invoice.
+        $invoice = new WPInv_Invoice();
+        $invoice->set_props( $parent_invoice->get_data() );
+        $invoice->set_id( 0 );
+        $invoice->set_items( $parent_invoice->get_items() );
+        $invoice->set_parent_id( $parent_invoice->get_id() );
+        $invoice->set_transaction_id( '' );
+        $invoice->set_key( $invoice->generate_key( 'renewal_' ) );
+        $invoice->set_number( '' );
+        $invoice->set_completed_date( '' );
+        $invoice->set_status( 'wpi-pending' );
+        $invoice->recalculate_total();
+        $invoice->save();
+
+        return $invoice->get_id() ? $invoice : false;
+    }
+
+    /**
+     * Renews or completes a subscription
+     *
+     * @since  1.0.0
+     * @return int The subscription's id
+     */
+    public function renew() {
+
+        // Complete subscription if applicable
+        if ( $this->get_bill_times() > 0 && $this->get_times_billed() >= $this->get_bill_times() ) {
+            return $this->complete();
+        }
+
+        // Calculate new expiration
+        $frequency      = $this->get_frequency();
+        $period         = $this->get_period();
+        $new_expiration = strtotime( "+ $frequency $period", $this->get_expiration_time() );
+
+        $this->set_expiration( date( 'Y-m-d H:i:s',$new_expiration ) );
+        $this->set_status( 'active' );
+        return $this->save();
+
+        do_action( 'getpaid_subscription_renewed', $this );
+
+    }
+
+    /**
+     * Marks a subscription as completed
+     *
+     * Subscription is completed when the number of payments matches the billing_times field
+     *
+     * @since  1.0.0
+     * @return int|bool Subscription id or false if the subscription is cancelled.
+     */
+    public function complete() {
+
+        // Only mark a subscription as complete if it's not already cancelled.
+        if ( $this->has_status( 'cancelled' ) ) {
+            return false;
+        }
+
+        $this->set_status( 'completed' );
+        return $this->save();
+
+    }
+
+    /**
+     * Marks a subscription as expired
+     *
+     * @since  1.0.0
+     * @param  bool $check_expiration
+     * @return int|bool Subscription id or false if $check_expiration is true and expiration date is in the future.
+     */
+    public function expire( $check_expiration = false ) {
+
+        if ( $check_expiration && $this->get_expiration_time() > current_time( 'timestamp' ) ) {
+            // Do not mark as expired since real expiration date is in the future
+            return false;
+        }
+
+        $this->set_status( 'expired' );
+        return $this->save();
+
+    }
+
+    /**
+     * Marks a subscription as failing
+     *
+     * @since  2.4.2
+     * @return int Subscription id.
+     */
+    public function failing() {
+        $this->set_status( 'failing' );
+        return $this->save();
+    }
 
     /**
      * Marks a subscription as cancelled
@@ -1023,19 +1023,19 @@ 
      * @return int Subscription id.
      */
     public function cancel() {
-		$this->set_status( 'cancelled' );
-		return $this->save();
+        $this->set_status( 'cancelled' );
+        return $this->save();
     }
 
-	/**
-	 * Determines if a subscription can be cancelled both locally and with a payment processor.
-	 *
-	 * @since  1.0.0
-	 * @return bool
-	 */
-	public function can_cancel() {
-		return apply_filters( 'wpinv_subscription_can_cancel', $this->has_status( $this->get_cancellable_statuses() ), $this );
-	}
+    /**
+     * Determines if a subscription can be cancelled both locally and with a payment processor.
+     *
+     * @since  1.0.0
+     * @return bool
+     */
+    public function can_cancel() {
+        return apply_filters( 'wpinv_subscription_can_cancel', $this->has_status( $this->get_cancellable_statuses() ), $this );
+    }
 
     /**
      * Returns an array of subscription statuses that can be cancelled
@@ -1048,82 +1048,82 @@ 
         return apply_filters( 'wpinv_recurring_cancellable_statuses', array( 'active', 'trialling', 'failing' ) );
     }
 
-	/**
-	 * Retrieves the URL to cancel subscription
-	 *
-	 * @since  1.0.0
-	 * @return string
-	 */
-	public function get_cancel_url() {
-		$url = wp_nonce_url( add_query_arg( array( 'wpinv_action' => 'cancel_subscription', 'sub_id' => $this->get_id() ) ), 'wpinv-recurring-cancel' );
-		return apply_filters( 'wpinv_subscription_cancel_url', $url, $this );
-	}
-
-	/**
-	 * Determines if subscription can be manually renewed
-	 *
-	 * This method is filtered by payment gateways in order to return true on subscriptions
-	 * that can be renewed manually
-	 *
-	 * @since  2.5
-	 * @return bool
-	 */
-	public function can_renew() {
-		return apply_filters( 'wpinv_subscription_can_renew', true, $this );
-	}
-
-	/**
-	 * Retrieves the URL to renew a subscription
-	 *
-	 * @since  2.5
-	 * @return string
-	 */
-	public function get_renew_url() {
-		$url = wp_nonce_url( add_query_arg( array( 'wpinv_action' => 'renew_subscription', 'sub_id' => $this->get_id ) ), 'wpinv-recurring-renew' );
-		return apply_filters( 'wpinv_subscription_renew_url', $url, $this );
-	}
-
-	/**
-	 * Determines if subscription can have their payment method updated
-	 *
-	 * @since  1.0.0
-	 * @return bool
-	 */
-	public function can_update() {
-		return apply_filters( 'wpinv_subscription_can_update', false, $this );
-	}
-
-	/**
-	 * Retrieves the URL to update subscription
-	 *
-	 * @since  1.0.0
-	 * @return string
-	 */
-	public function get_update_url() {
-		$url = add_query_arg( array( 'action' => 'update', 'subscription_id' => $this->get_id() ) );
-		return apply_filters( 'wpinv_subscription_update_url', $url, $this );
-	}
-
-	/**
-	 * Retrieves the subscription status label
-	 *
-	 * @since  1.0.0
-	 * @return string
-	 */
-	public function get_status_label() {
-		return getpaid_get_subscription_status_label( $this->get_status() );
-	}
-
-	/**
-	 * Retrieves the subscription status class
-	 *
-	 * @since  1.0.19
-	 * @return string
-	 */
-	public function get_status_class() {
-		$statuses = getpaid_get_subscription_status_classes();
-		return isset( $statuses[ $this->get_status() ] ) ? $statuses[ $this->get_status() ] : 'text-white bg-secondary';
-	}
+    /**
+     * Retrieves the URL to cancel subscription
+     *
+     * @since  1.0.0
+     * @return string
+     */
+    public function get_cancel_url() {
+        $url = wp_nonce_url( add_query_arg( array( 'wpinv_action' => 'cancel_subscription', 'sub_id' => $this->get_id() ) ), 'wpinv-recurring-cancel' );
+        return apply_filters( 'wpinv_subscription_cancel_url', $url, $this );
+    }
+
+    /**
+     * Determines if subscription can be manually renewed
+     *
+     * This method is filtered by payment gateways in order to return true on subscriptions
+     * that can be renewed manually
+     *
+     * @since  2.5
+     * @return bool
+     */
+    public function can_renew() {
+        return apply_filters( 'wpinv_subscription_can_renew', true, $this );
+    }
+
+    /**
+     * Retrieves the URL to renew a subscription
+     *
+     * @since  2.5
+     * @return string
+     */
+    public function get_renew_url() {
+        $url = wp_nonce_url( add_query_arg( array( 'wpinv_action' => 'renew_subscription', 'sub_id' => $this->get_id ) ), 'wpinv-recurring-renew' );
+        return apply_filters( 'wpinv_subscription_renew_url', $url, $this );
+    }
+
+    /**
+     * Determines if subscription can have their payment method updated
+     *
+     * @since  1.0.0
+     * @return bool
+     */
+    public function can_update() {
+        return apply_filters( 'wpinv_subscription_can_update', false, $this );
+    }
+
+    /**
+     * Retrieves the URL to update subscription
+     *
+     * @since  1.0.0
+     * @return string
+     */
+    public function get_update_url() {
+        $url = add_query_arg( array( 'action' => 'update', 'subscription_id' => $this->get_id() ) );
+        return apply_filters( 'wpinv_subscription_update_url', $url, $this );
+    }
+
+    /**
+     * Retrieves the subscription status label
+     *
+     * @since  1.0.0
+     * @return string
+     */
+    public function get_status_label() {
+        return getpaid_get_subscription_status_label( $this->get_status() );
+    }
+
+    /**
+     * Retrieves the subscription status class
+     *
+     * @since  1.0.19
+     * @return string
+     */
+    public function get_status_class() {
+        $statuses = getpaid_get_subscription_status_classes();
+        return isset( $statuses[ $this->get_status() ] ) ? $statuses[ $this->get_status() ] : 'text-white bg-secondary';
+    }
 
     /**
      * Retrieves the subscription status label
@@ -1133,11 +1133,11 @@ 
      */
     public function get_status_label_html() {
 
-		$status_label = sanitize_text_field( $this->get_status_label() );
-		$class        = esc_attr( $this->get_status_class() );
-		$status       = sanitize_html_class( $this->get_status_label() );
+        $status_label = sanitize_text_field( $this->get_status_label() );
+        $class        = esc_attr( $this->get_status_class() );
+        $status       = sanitize_html_class( $this->get_status_label() );
 
-		return "<span class='bsui'><span class='d-inline-block py-2 px-3 rounded $class $status'>$status_label</span></span>";
+        return "<span class='bsui'><span class='d-inline-block py-2 px-3 rounded $class $status'>$status_label</span></span>";
     }
 
     /**
@@ -1148,63 +1148,63 @@ 
      * @return bool
      */
     public function payment_exists( $txn_id = '' ) {
-		$invoice_id = WPInv_Invoice::get_invoice_id_by_field( $txn_id, 'transaction_id' );
+        $invoice_id = WPInv_Invoice::get_invoice_id_by_field( $txn_id, 'transaction_id' );
         return ! empty( $invoice_id );
-	}
-
-	/**
-	 * Handle the status transition.
-	 */
-	protected function status_transition() {
-		$status_transition = $this->status_transition;
-
-		// Reset status transition variable.
-		$this->status_transition = false;
-
-		if ( $status_transition ) {
-			try {
-
-				// Fire a hook for the status change.
-				do_action( 'wpinv_subscription_' . $status_transition['to'], $this->get_id(), $this, $status_transition );
-				do_action( 'getpaid_subscription_' . $status_transition['to'], $this, $status_transition );
-
-				if ( ! empty( $status_transition['from'] ) ) {
-
-					/* translators: 1: old subscription status 2: new subscription status */
-					$transition_note = sprintf( __( 'Subscription status changed from %1$s to %2$s.', 'invoicing' ), getpaid_get_subscription_status_label( $status_transition['from'] ), getpaid_get_subscription_status_label( $status_transition['to'] ) );
-
-					// Fire another hook.
-					do_action( 'getpaid_subscription_status_' . $status_transition['from'] . '_to_' . $status_transition['to'], $this->get_id(), $this );
-					do_action( 'getpaid_subscription_status_changed', $this->get_id(), $status_transition['from'], $status_transition['to'], $this );
-
-					// Note the transition occurred.
-					$this->get_parent_payment()->add_note( $transition_note, false, false, true );
-
-				} else {
-					/* translators: %s: new invoice status */
-					$transition_note = sprintf( __( 'Subscription status set to %s.', 'invoicing' ), getpaid_get_subscription_status_label( $status_transition['to'] ) );
-
-					// Note the transition occurred.
-					$this->get_parent_payment()->add_note( $transition_note, false, false, true );
-
-				}
-			} catch ( Exception $e ) {
-				$this->get_parent_payment()->add_note( __( 'Error during subscription status transition.', 'invoicing' ) . ' ' . $e->getMessage() );
-			}
-		}
-
-	}
-
-	/**
-	 * Save data to the database.
-	 *
-	 * @since 1.0.19
-	 * @return int subscription ID
-	 */
-	public function save() {
-		parent::save();
-		$this->status_transition();
-		return $this->get_id();
-	}
+    }
+
+    /**
+     * Handle the status transition.
+     */
+    protected function status_transition() {
+        $status_transition = $this->status_transition;
+
+        // Reset status transition variable.
+        $this->status_transition = false;
+
+        if ( $status_transition ) {
+            try {
+
+                // Fire a hook for the status change.
+                do_action( 'wpinv_subscription_' . $status_transition['to'], $this->get_id(), $this, $status_transition );
+                do_action( 'getpaid_subscription_' . $status_transition['to'], $this, $status_transition );
+
+                if ( ! empty( $status_transition['from'] ) ) {
+
+                    /* translators: 1: old subscription status 2: new subscription status */
+                    $transition_note = sprintf( __( 'Subscription status changed from %1$s to %2$s.', 'invoicing' ), getpaid_get_subscription_status_label( $status_transition['from'] ), getpaid_get_subscription_status_label( $status_transition['to'] ) );
+
+                    // Fire another hook.
+                    do_action( 'getpaid_subscription_status_' . $status_transition['from'] . '_to_' . $status_transition['to'], $this->get_id(), $this );
+                    do_action( 'getpaid_subscription_status_changed', $this->get_id(), $status_transition['from'], $status_transition['to'], $this );
+
+                    // Note the transition occurred.
+                    $this->get_parent_payment()->add_note( $transition_note, false, false, true );
+
+                } else {
+                    /* translators: %s: new invoice status */
+                    $transition_note = sprintf( __( 'Subscription status set to %s.', 'invoicing' ), getpaid_get_subscription_status_label( $status_transition['to'] ) );
+
+                    // Note the transition occurred.
+                    $this->get_parent_payment()->add_note( $transition_note, false, false, true );
+
+                }
+            } catch ( Exception $e ) {
+                $this->get_parent_payment()->add_note( __( 'Error during subscription status transition.', 'invoicing' ) . ' ' . $e->getMessage() );
+            }
+        }
+
+    }
+
+    /**
+     * Save data to the database.
+     *
+     * @since 1.0.19
+     * @return int subscription ID
+     */
+    public function save() {
+        parent::save();
+        $this->status_transition();
+        return $this->get_id();
+    }
 
 }

Spacing +216 added lines, -216 removed lines

@@ -6,7 +6,7 @@ 
  * @package Invoicing
  */
 
-defined( 'ABSPATH' ) || exit;
+defined('ABSPATH') || exit;
 
 /**
  * The Subscription Class
@@ -70,27 +70,27 @@ 
 	 * @param  int|string|object|WPInv_Subscription $subscription Subscription id, profile_id, or object to read.
 	 * @param  bool $deprecated
 	 */
-	function __construct( $subscription = 0, $deprecated = false ) {
+	function __construct($subscription = 0, $deprecated = false) {
 
-		parent::__construct( $subscription );
+		parent::__construct($subscription);
 
-		if ( ! $deprecated && ! empty( $subscription ) && is_numeric( $subscription ) ) {
-			$this->set_id( $subscription );
-		} elseif ( $subscription instanceof self ) {
-			$this->set_id( $subscription->get_id() );
-		} elseif ( ! empty( $subscription->id ) ) {
-			$this->set_id( $subscription->id );
-		} elseif ( $deprecated && $subscription_id = self::get_subscription_id_by_field( $subscription, 'profile_id' ) ) {
-			$this->set_id( $subscription_id );
+		if (!$deprecated && !empty($subscription) && is_numeric($subscription)) {
+			$this->set_id($subscription);
+		} elseif ($subscription instanceof self) {
+			$this->set_id($subscription->get_id());
+		} elseif (!empty($subscription->id)) {
+			$this->set_id($subscription->id);
+		} elseif ($deprecated && $subscription_id = self::get_subscription_id_by_field($subscription, 'profile_id')) {
+			$this->set_id($subscription_id);
 		} else {
-			$this->set_object_read( true );
+			$this->set_object_read(true);
 		}
 
 		// Load the datastore.
-		$this->data_store = GetPaid_Data_Store::load( $this->data_store_name );
+		$this->data_store = GetPaid_Data_Store::load($this->data_store_name);
 
-		if ( $this->get_id() > 0 ) {
-			$this->data_store->read( $this );
+		if ($this->get_id() > 0) {
+			$this->data_store->read($this);
 		}
 
 	}
@@ -105,17 +105,17 @@ 
 	 * @since 1.0.19
 	 * @return int
 	 */
-	public static function get_subscription_id_by_field( $value, $field = 'profile_id' ) {
+	public static function get_subscription_id_by_field($value, $field = 'profile_id') {
         global $wpdb;
 
 		// Trim the value.
-		$value = trim( $value );
+		$value = trim($value);
 
-		if ( empty( $value ) ) {
+		if (empty($value)) {
 			return 0;
 		}
 
-		if ( 'invoice_id' == $field ) {
+		if ('invoice_id' == $field) {
 			$field = 'parent_payment_id';
 		}
 
@@ -127,28 +127,28 @@ 
 		);
 
 		// Ensure a field has been passed.
-		if ( empty( $field ) || ! in_array( $field, $fields ) ) {
+		if (empty($field) || !in_array($field, $fields)) {
 			return 0;
 		}
 
 		// Maybe retrieve from the cache.
-		$subscription_id   = wp_cache_get( $value, "getpaid_subscription_{$field}s_to_subscription_ids" );
-		if ( ! empty( $subscription_id ) ) {
+		$subscription_id = wp_cache_get($value, "getpaid_subscription_{$field}s_to_subscription_ids");
+		if (!empty($subscription_id)) {
 			return $subscription_id;
 		}
 
         // Fetch from the db.
         $table            = $wpdb->prefix . 'wpinv_subscriptions';
         $subscription_id  = (int) $wpdb->get_var(
-            $wpdb->prepare( "SELECT `id` FROM $table WHERE `$field`=%s LIMIT 1", $value )
+            $wpdb->prepare("SELECT `id` FROM $table WHERE `$field`=%s LIMIT 1", $value)
         );
 
-		if ( empty( $subscription_id ) ) {
+		if (empty($subscription_id)) {
 			return 0;
 		}
 
 		// Update the cache with our data.
-		wp_cache_set( $value, $subscription_id, "getpaid_subscription_{$field}s_to_subscription_ids" );
+		wp_cache_set($value, $subscription_id, "getpaid_subscription_{$field}s_to_subscription_ids");
 
 		return $subscription_id;
 	}
@@ -157,17 +157,17 @@ 
      * Clears the subscription's cache.
      */
     public function clear_cache() {
-		wp_cache_delete( $this->get_parent_payment_id(), 'getpaid_subscription_parent_payment_ids_to_subscription_ids' );
-		wp_cache_delete( $this->get_transaction_id(), 'getpaid_subscription_transaction_ids_to_subscription_ids' );
-		wp_cache_delete( $this->get_profile_id(), 'getpaid_subscription_profile_ids_to_subscription_ids' );
-		wp_cache_delete( $this->get_id(), 'getpaid_subscriptions' );
+		wp_cache_delete($this->get_parent_payment_id(), 'getpaid_subscription_parent_payment_ids_to_subscription_ids');
+		wp_cache_delete($this->get_transaction_id(), 'getpaid_subscription_transaction_ids_to_subscription_ids');
+		wp_cache_delete($this->get_profile_id(), 'getpaid_subscription_profile_ids_to_subscription_ids');
+		wp_cache_delete($this->get_id(), 'getpaid_subscriptions');
 	}
 
 	/**
      * Checks if a subscription key is set.
      */
-    public function _isset( $key ) {
-        return isset( $this->data[$key] ) || method_exists( $this, "get_$key" );
+    public function _isset($key) {
+        return isset($this->data[$key]) || method_exists($this, "get_$key");
 	}
 
 	/*
@@ -192,8 +192,8 @@ 
 	 * @param  string $context View or edit context.
 	 * @return int
 	 */
-	public function get_customer_id( $context = 'view' ) {
-		return (int) $this->get_prop( 'customer_id', $context );
+	public function get_customer_id($context = 'view') {
+		return (int) $this->get_prop('customer_id', $context);
 	}
 
 	/**
@@ -203,8 +203,8 @@ 
 	 * @param  string $context View or edit context.
 	 * @return WP_User|false WP_User object on success, false on failure.
 	 */
-	public function get_customer( $context = 'view' ) {
-		return get_userdata( $this->get_customer_id( $context ) );
+	public function get_customer($context = 'view') {
+		return get_userdata($this->get_customer_id($context));
 	}
 
 	/**
@@ -214,8 +214,8 @@ 
 	 * @param  string $context View or edit context.
 	 * @return int
 	 */
-	public function get_parent_invoice_id( $context = 'view' ) {
-		return (int) $this->get_prop( 'parent_payment_id', $context );
+	public function get_parent_invoice_id($context = 'view') {
+		return (int) $this->get_prop('parent_payment_id', $context);
 	}
 
 	/**
@@ -225,8 +225,8 @@ 
 	 * @param  string $context View or edit context.
 	 * @return int
 	 */
-    public function get_parent_payment_id( $context = 'view' ) {
-        return $this->get_parent_invoice_id( $context );
+    public function get_parent_payment_id($context = 'view') {
+        return $this->get_parent_invoice_id($context);
 	}
 
 	/**
@@ -235,8 +235,8 @@ 
      * @since  1.0.0
      * @return int
      */
-    public function get_original_payment_id( $context = 'view' ) {
-        return $this->get_parent_invoice_id( $context );
+    public function get_original_payment_id($context = 'view') {
+        return $this->get_parent_invoice_id($context);
     }
 
 	/**
@@ -246,8 +246,8 @@ 
 	 * @param  string $context View or edit context.
 	 * @return WPInv_Invoice
 	 */
-	public function get_parent_invoice( $context = 'view' ) {
-		return new WPInv_Invoice( $this->get_parent_invoice_id( $context ) );
+	public function get_parent_invoice($context = 'view') {
+		return new WPInv_Invoice($this->get_parent_invoice_id($context));
 	}
 
 	/**
@@ -257,8 +257,8 @@ 
 	 * @param  string $context View or edit context.
 	 * @return WPInv_Invoice
 	 */
-    public function get_parent_payment( $context = 'view' ) {
-        return $this->get_parent_invoice( $context );
+    public function get_parent_payment($context = 'view') {
+        return $this->get_parent_invoice($context);
 	}
 
 	/**
@@ -268,8 +268,8 @@ 
 	 * @param  string $context View or edit context.
 	 * @return int
 	 */
-	public function get_product_id( $context = 'view' ) {
-		return (int) $this->get_prop( 'product_id', $context );
+	public function get_product_id($context = 'view') {
+		return (int) $this->get_prop('product_id', $context);
 	}
 
 	/**
@@ -279,8 +279,8 @@ 
 	 * @param  string $context View or edit context.
 	 * @return WPInv_Item
 	 */
-	public function get_product( $context = 'view' ) {
-		return new WPInv_Item( $this->get_product_id( $context ) );
+	public function get_product($context = 'view') {
+		return new WPInv_Item($this->get_product_id($context));
 	}
 
 	/**
@@ -292,8 +292,8 @@ 
 	 * @param  string $context View or edit context.
 	 * @return string
 	 */
-	public function get_gateway( $context = 'view' ) {
-		return $this->get_parent_invoice( $context )->get_gateway();
+	public function get_gateway($context = 'view') {
+		return $this->get_parent_invoice($context)->get_gateway();
 	}
 
 	/**
@@ -303,8 +303,8 @@ 
 	 * @param  string $context View or edit context.
 	 * @return string
 	 */
-	public function get_period( $context = 'view' ) {
-		return $this->get_prop( 'period', $context );
+	public function get_period($context = 'view') {
+		return $this->get_prop('period', $context);
 	}
 
 	/**
@@ -314,8 +314,8 @@ 
 	 * @param  string $context View or edit context.
 	 * @return int
 	 */
-	public function get_frequency( $context = 'view' ) {
-		return (int) $this->get_prop( 'frequency', $context );
+	public function get_frequency($context = 'view') {
+		return (int) $this->get_prop('frequency', $context);
 	}
 
 	/**
@@ -325,8 +325,8 @@ 
 	 * @param  string $context View or edit context.
 	 * @return float
 	 */
-	public function get_initial_amount( $context = 'view' ) {
-		return (float) wpinv_sanitize_amount( $this->get_prop( 'initial_amount', $context ) );
+	public function get_initial_amount($context = 'view') {
+		return (float) wpinv_sanitize_amount($this->get_prop('initial_amount', $context));
 	}
 
 	/**
@@ -336,8 +336,8 @@ 
 	 * @param  string $context View or edit context.
 	 * @return float
 	 */
-	public function get_recurring_amount( $context = 'view' ) {
-		return (float) wpinv_sanitize_amount( $this->get_prop( 'recurring_amount', $context ) );
+	public function get_recurring_amount($context = 'view') {
+		return (float) wpinv_sanitize_amount($this->get_prop('recurring_amount', $context));
 	}
 
 	/**
@@ -347,8 +347,8 @@ 
 	 * @param  string $context View or edit context.
 	 * @return int
 	 */
-	public function get_bill_times( $context = 'view' ) {
-		return (int) $this->get_prop( 'bill_times', $context );
+	public function get_bill_times($context = 'view') {
+		return (int) $this->get_prop('bill_times', $context);
 	}
 
 	/**
@@ -358,8 +358,8 @@ 
 	 * @param  string $context View or edit context.
 	 * @return string
 	 */
-	public function get_transaction_id( $context = 'view' ) {
-		return $this->get_prop( 'transaction_id', $context );
+	public function get_transaction_id($context = 'view') {
+		return $this->get_prop('transaction_id', $context);
 	}
 
 	/**
@@ -369,8 +369,8 @@ 
 	 * @param  string $context View or edit context.
 	 * @return string
 	 */
-	public function get_created( $context = 'view' ) {
-		return $this->get_prop( 'created', $context );
+	public function get_created($context = 'view') {
+		return $this->get_prop('created', $context);
 	}
 
 	/**
@@ -380,8 +380,8 @@ 
 	 * @param  string $context View or edit context.
 	 * @return string
 	 */
-	public function get_date_created( $context = 'view' ) {
-		return $this->get_created( $context );
+	public function get_date_created($context = 'view') {
+		return $this->get_created($context);
 	}
 
 	/**
@@ -392,7 +392,7 @@ 
 	 */
 	public function get_time_created() {
 		$created = $this->get_date_created();
-		return empty( $created ) ? current_time( 'timestamp' ) : strtotime( $created, current_time( 'timestamp' ) );
+		return empty($created) ? current_time('timestamp') : strtotime($created, current_time('timestamp'));
 	}
 
 	/**
@@ -402,11 +402,11 @@ 
 	 * @param  string $context View or edit context.
 	 * @return string
 	 */
-	public function get_date_created_gmt( $context = 'view' ) {
-        $date = $this->get_date_created( $context );
+	public function get_date_created_gmt($context = 'view') {
+        $date = $this->get_date_created($context);
 
-        if ( $date ) {
-            $date = get_gmt_from_date( $date );
+        if ($date) {
+            $date = get_gmt_from_date($date);
         }
 		return $date;
 	}
@@ -418,8 +418,8 @@ 
 	 * @param  string $context View or edit context.
 	 * @return string
 	 */
-	public function get_next_renewal_date( $context = 'view' ) {
-		return $this->get_prop( 'expiration', $context );
+	public function get_next_renewal_date($context = 'view') {
+		return $this->get_prop('expiration', $context);
 	}
 
 	/**
@@ -429,8 +429,8 @@ 
 	 * @param  string $context View or edit context.
 	 * @return string
 	 */
-	public function get_expiration( $context = 'view' ) {
-		return $this->get_next_renewal_date( $context );
+	public function get_expiration($context = 'view') {
+		return $this->get_next_renewal_date($context);
 	}
 
 	/**
@@ -442,12 +442,12 @@ 
 	public function get_expiration_time() {
 		$expiration = $this->get_expiration();
 
-		if ( empty( $expiration ) || '0000-00-00 00:00:00' == $expiration ) {
-			return current_time( 'timestamp' );
+		if (empty($expiration) || '0000-00-00 00:00:00' == $expiration) {
+			return current_time('timestamp');
 		}
 
-		$expiration = strtotime( $expiration, current_time( 'timestamp' ) );
-		return $expiration < current_time( 'timestamp' ) ? current_time( 'timestamp' ) : $expiration;
+		$expiration = strtotime($expiration, current_time('timestamp'));
+		return $expiration < current_time('timestamp') ? current_time('timestamp') : $expiration;
 	}
 
 	/**
@@ -457,11 +457,11 @@ 
 	 * @param  string $context View or edit context.
 	 * @return string
 	 */
-	public function get_next_renewal_date_gmt( $context = 'view' ) {
-        $date = $this->get_next_renewal_date( $context );
+	public function get_next_renewal_date_gmt($context = 'view') {
+        $date = $this->get_next_renewal_date($context);
 
-        if ( $date ) {
-            $date = get_gmt_from_date( $date );
+        if ($date) {
+            $date = get_gmt_from_date($date);
         }
 		return $date;
 	}
@@ -473,8 +473,8 @@ 
 	 * @param  string $context View or edit context.
 	 * @return string
 	 */
-	public function get_trial_period( $context = 'view' ) {
-		return $this->get_prop( 'trial_period', $context );
+	public function get_trial_period($context = 'view') {
+		return $this->get_prop('trial_period', $context);
 	}
 
 	/**
@@ -484,8 +484,8 @@ 
 	 * @param  string $context View or edit context.
 	 * @return string
 	 */
-	public function get_status( $context = 'view' ) {
-		return $this->get_prop( 'status', $context );
+	public function get_status($context = 'view') {
+		return $this->get_prop('status', $context);
 	}
 
 	/**
@@ -495,8 +495,8 @@ 
 	 * @param  string $context View or edit context.
 	 * @return string
 	 */
-	public function get_profile_id( $context = 'view' ) {
-		return $this->get_prop( 'profile_id', $context );
+	public function get_profile_id($context = 'view') {
+		return $this->get_prop('profile_id', $context);
 	}
 
 	/*
@@ -511,8 +511,8 @@ 
 	 * @since 1.0.19
 	 * @param  int $value The customer's id.
 	 */
-	public function set_customer_id( $value ) {
-		$this->set_prop( 'customer_id', (int) $value );
+	public function set_customer_id($value) {
+		$this->set_prop('customer_id', (int) $value);
 	}
 
 	/**
@@ -521,8 +521,8 @@ 
 	 * @since 1.0.19
 	 * @param  int $value The parent invoice id.
 	 */
-	public function set_parent_invoice_id( $value ) {
-		$this->set_prop( 'parent_payment_id', (int) $value );
+	public function set_parent_invoice_id($value) {
+		$this->set_prop('parent_payment_id', (int) $value);
 	}
 
 	/**
@@ -531,8 +531,8 @@ 
 	 * @since 1.0.19
 	 * @param  int $value The parent invoice id.
 	 */
-    public function set_parent_payment_id( $value ) {
-        $this->set_parent_invoice_id( $value );
+    public function set_parent_payment_id($value) {
+        $this->set_parent_invoice_id($value);
 	}
 
 	/**
@@ -541,8 +541,8 @@ 
      * @since 1.0.19
 	 * @param  int $value The parent invoice id.
      */
-    public function set_original_payment_id( $value ) {
-        $this->set_parent_invoice_id( $value );
+    public function set_original_payment_id($value) {
+        $this->set_parent_invoice_id($value);
 	}
 
 	/**
@@ -551,8 +551,8 @@ 
 	 * @since 1.0.19
 	 * @param  int $value The subscription product id.
 	 */
-	public function set_product_id( $value ) {
-		$this->set_prop( 'product_id', (int) $value );
+	public function set_product_id($value) {
+		$this->set_prop('product_id', (int) $value);
 	}
 
 	/**
@@ -561,8 +561,8 @@ 
 	 * @since 1.0.19
 	 * @param  string $value The renewal period.
 	 */
-	public function set_period( $value ) {
-		$this->set_prop( 'period', $value );
+	public function set_period($value) {
+		$this->set_prop('period', $value);
 	}
 
 	/**
@@ -571,9 +571,9 @@ 
 	 * @since 1.0.19
 	 * @param  int $value The subscription frequency.
 	 */
-	public function set_frequency( $value ) {
-		$value = empty( $value ) ? 1 : (int) $value;
-		$this->set_prop( 'frequency', absint( $value ) );
+	public function set_frequency($value) {
+		$value = empty($value) ? 1 : (int) $value;
+		$this->set_prop('frequency', absint($value));
 	}
 
 	/**
@@ -582,8 +582,8 @@ 
 	 * @since 1.0.19
 	 * @param  float $value The initial subcription amount.
 	 */
-	public function set_initial_amount( $value ) {
-		$this->set_prop( 'initial_amount', wpinv_sanitize_amount( $value ) );
+	public function set_initial_amount($value) {
+		$this->set_prop('initial_amount', wpinv_sanitize_amount($value));
 	}
 
 	/**
@@ -592,8 +592,8 @@ 
 	 * @since 1.0.19
 	 * @param  float $value The recurring subcription amount.
 	 */
-	public function set_recurring_amount( $value ) {
-		$this->set_prop( 'recurring_amount', wpinv_sanitize_amount( $value ) );
+	public function set_recurring_amount($value) {
+		$this->set_prop('recurring_amount', wpinv_sanitize_amount($value));
 	}
 
 	/**
@@ -602,8 +602,8 @@ 
 	 * @since 1.0.19
 	 * @param  int $value Bill times.
 	 */
-	public function set_bill_times( $value ) {
-		$this->set_prop( 'bill_times', (int) $value );
+	public function set_bill_times($value) {
+		$this->set_prop('bill_times', (int) $value);
 	}
 
 	/**
@@ -612,8 +612,8 @@ 
 	 * @since 1.0.19
 	 * @param string $value Bill times.
 	 */
-	public function set_transaction_id( $value ) {
-		$this->set_prop( 'transaction_id', sanitize_text_field( $value ) );
+	public function set_transaction_id($value) {
+		$this->set_prop('transaction_id', sanitize_text_field($value));
 	}
 
 	/**
@@ -622,15 +622,15 @@ 
 	 * @since 1.0.19
 	 * @param string $value strtotime compliant date.
 	 */
-	public function set_created( $value ) {
-        $date = strtotime( $value );
+	public function set_created($value) {
+        $date = strtotime($value);
 
-        if ( $date && $value !== '0000-00-00 00:00:00' ) {
-            $this->set_prop( 'created', date( 'Y-m-d H:i:s', $date ) );
+        if ($date && $value !== '0000-00-00 00:00:00') {
+            $this->set_prop('created', date('Y-m-d H:i:s', $date));
             return;
         }
 
-		$this->set_prop( 'created', '' );
+		$this->set_prop('created', '');
 
 	}
 
@@ -640,8 +640,8 @@ 
 	 * @since 1.0.19
 	 * @param string $value strtotime compliant date.
 	 */
-	public function set_date_created( $value ) {
-		$this->set_created( $value );
+	public function set_date_created($value) {
+		$this->set_created($value);
     }
 
 	/**
@@ -650,15 +650,15 @@ 
 	 * @since 1.0.19
 	 * @param string $value strtotime compliant date.
 	 */
-	public function set_next_renewal_date( $value ) {
-		$date = strtotime( $value );
+	public function set_next_renewal_date($value) {
+		$date = strtotime($value);
 
-        if ( $date && $value !== '0000-00-00 00:00:00' ) {
-            $this->set_prop( 'expiration', date( 'Y-m-d H:i:s', $date ) );
+        if ($date && $value !== '0000-00-00 00:00:00') {
+            $this->set_prop('expiration', date('Y-m-d H:i:s', $date));
             return;
 		}
 
-		$this->set_prop( 'expiration', '' );
+		$this->set_prop('expiration', '');
 
 	}
 
@@ -668,8 +668,8 @@ 
 	 * @since 1.0.19
 	 * @param string $value strtotime compliant date.
 	 */
-	public function set_expiration( $value ) {
-		$this->set_next_renewal_date( $value );
+	public function set_expiration($value) {
+		$this->set_next_renewal_date($value);
     }
 
 	/**
@@ -678,8 +678,8 @@ 
 	 * @since 1.0.19
 	 * @param string $value trial period e.g 1 year.
 	 */
-	public function set_trial_period( $value ) {
-		$this->set_prop( 'trial_period', $value );
+	public function set_trial_period($value) {
+		$this->set_prop('trial_period', $value);
 	}
 
 	/**
@@ -688,19 +688,19 @@ 
 	 * @since 1.0.19
 	 * @param string $new_status    New subscription status.
 	 */
-	public function set_status( $new_status ) {
+	public function set_status($new_status) {
 
 		// Abort if this is not a valid status;
-		if ( ! array_key_exists( $new_status, getpaid_get_subscription_statuses() ) ) {
+		if (!array_key_exists($new_status, getpaid_get_subscription_statuses())) {
 			return;
 		}
 
 		$old_status = $this->get_status();
-		$this->set_prop( 'status', $new_status );
+		$this->set_prop('status', $new_status);
 
-		if ( true === $this->object_read && $old_status !== $new_status ) {
+		if (true === $this->object_read && $old_status !== $new_status) {
 			$this->status_transition = array(
-				'from'   => ! empty( $this->status_transition['from'] ) ? $this->status_transition['from'] : $old_status,
+				'from'   => !empty($this->status_transition['from']) ? $this->status_transition['from'] : $old_status,
 				'to'     => $new_status,
 			);
 		}
@@ -713,8 +713,8 @@ 
 	 * @since 1.0.19
 	 * @param  string $value the remote profile id.
 	 */
-	public function set_profile_id( $value ) {
-		$this->set_prop( 'profile_id', sanitize_text_field( $value ) );
+	public function set_profile_id($value) {
+		$this->set_prop('profile_id', sanitize_text_field($value));
 	}
 
 	/*
@@ -732,8 +732,8 @@ 
 	 * @param string|array String or array of strings to check for.
 	 * @return bool
      */
-    public function has_status( $status ) {
-        return in_array( $this->get_status(), wpinv_parse_list( $status ) );
+    public function has_status($status) {
+        return in_array($this->get_status(), wpinv_parse_list($status));
 	}
 
 	/**
@@ -743,7 +743,7 @@ 
      */
     public function has_trial_period() {
 		$period = $this->get_trial_period();
-        return ! empty( $period );
+        return !empty($period);
 	}
 
 	/**
@@ -752,7 +752,7 @@ 
 	 * @return bool
 	 */
 	public function is_active() {
-		return $this->has_status( 'active trialling' ) && $this->get_expiration_time() > current_time( 'mysql' );
+		return $this->has_status('active trialling') && $this->get_expiration_time() > current_time('mysql');
 	}
 
 	/**
@@ -761,7 +761,7 @@ 
 	 * @return bool
 	 */
 	public function is_expired() {
-		return $this->has_status( 'expired' ) || ( $this->has_status( 'active cancelled trialling' ) && $this->get_expiration_time() < current_time( 'mysql' ) );
+		return $this->has_status('expired') || ($this->has_status('active cancelled trialling') && $this->get_expiration_time() < current_time('mysql'));
 	}
 
 	/*
@@ -776,11 +776,11 @@ 
 	/**
 	 * Backwards compatibilty.
 	 */
-	public function create( $data = array() ) {
+	public function create($data = array()) {
 
 		// Set the properties.
-		if ( is_array( $data ) ) {
-			$this->set_props( $data );
+		if (is_array($data)) {
+			$this->set_props($data);
 		}
 
 		// Save the item.
@@ -791,8 +791,8 @@ 
 	/**
 	 * Backwards compatibilty.
 	 */
-	public function update( $args = array() ) {
-		return $this->create( $args );
+	public function update($args = array()) {
+		return $this->create($args);
 	}
 
     /**
@@ -806,7 +806,7 @@ 
 			array(
             	'post_parent'    => $this->get_parent_payment_id(),
             	'numberposts'    => -1,
-            	'post_status'    => array( 'publish', 'wpi-processing', 'wpi-renewal' ),
+            	'post_status'    => array('publish', 'wpi-processing', 'wpi-renewal'),
             	'orderby'        => 'ID',
             	'order'          => 'DESC',
             	'post_type'      => 'wpi_invoice'
@@ -831,7 +831,7 @@ 
 		);
 
 		// Maybe include parent invoice.
-        if ( ! $this->has_status( 'pending' ) ) {
+        if (!$this->has_status('pending')) {
             $count++;
         }
 
@@ -847,7 +847,7 @@ 
     public function get_times_billed() {
         $times_billed = $this->get_total_payments();
 
-        if ( $this->has_trial_period() && $times_billed > 0 ) {
+        if ($this->has_trial_period() && $times_billed > 0) {
             $times_billed--;
         }
 
@@ -862,49 +862,49 @@ 
 	 * @param  WPInv_Invoice $invoice If adding an existing invoice.
      * @return bool
      */
-    public function add_payment( $args = array(), $invoice = false ) {
+    public function add_payment($args = array(), $invoice = false) {
 
 		// Process each payment once.
-        if ( ! empty( $args['transaction_id'] ) && $this->payment_exists( $args['transaction_id'] ) ) {
+        if (!empty($args['transaction_id']) && $this->payment_exists($args['transaction_id'])) {
             return false;
         }
 
 		// Are we creating a new invoice?
-		if ( empty( $invoice ) ) {
+		if (empty($invoice)) {
 			$invoice = $this->create_payment();
 
-			if ( empty( $invoice ) ) {
+			if (empty($invoice)) {
 				return false;
 			}
 
-			$invoice->set_status( 'wpi-renewal' );
+			$invoice->set_status('wpi-renewal');
 
 		}
 
 		// Maybe set a transaction id.
-		if ( ! empty( $args['transaction_id'] ) ) {
-			$invoice->set_transaction_id( $args['transaction_id'] );
+		if (!empty($args['transaction_id'])) {
+			$invoice->set_transaction_id($args['transaction_id']);
 		}
 
 		// Set the completed date.
-		$invoice->set_completed_date( current_time( 'mysql' ) );
+		$invoice->set_completed_date(current_time('mysql'));
 
 		// And the gateway.
-		if ( ! empty( $args['gateway'] ) ) {
-			$invoice->set_gateway( $args['gateway'] );
+		if (!empty($args['gateway'])) {
+			$invoice->set_gateway($args['gateway']);
 		}
 
 		$invoice->save();
 
-		if ( ! $invoice->get_id() ) {
+		if (!$invoice->get_id()) {
 			return 0;
 		}
 
-		do_action( 'getpaid_after_create_subscription_renewal_invoice', $invoice, $this );
-		do_action( 'wpinv_recurring_add_subscription_payment', $invoice, $this );
-        do_action( 'wpinv_recurring_record_payment', $invoice->get_id(), $this->get_parent_invoice_id(), $invoice->get_recurring_total(), $invoice->get_transaction_id() );
+		do_action('getpaid_after_create_subscription_renewal_invoice', $invoice, $this);
+		do_action('wpinv_recurring_add_subscription_payment', $invoice, $this);
+        do_action('wpinv_recurring_record_payment', $invoice->get_id(), $this->get_parent_invoice_id(), $invoice->get_recurring_total(), $invoice->get_transaction_id());
 
-        update_post_meta( $invoice->get_id(), '_wpinv_subscription_id', $this->id );
+        update_post_meta($invoice->get_id(), '_wpinv_subscription_id', $this->id);
 
         return $invoice->get_id();
 	}
@@ -919,21 +919,21 @@ 
 
 		$parent_invoice = $this->get_parent_payment();
 
-		if ( ! $parent_invoice->get_id() ) {
+		if (!$parent_invoice->get_id()) {
 			return false;
 		}
 
 		// Duplicate the parent invoice.
 		$invoice = new WPInv_Invoice();
-		$invoice->set_props( $parent_invoice->get_data() );
-		$invoice->set_id( 0 );
-		$invoice->set_items( $parent_invoice->get_items() );
-		$invoice->set_parent_id( $parent_invoice->get_id() );
-		$invoice->set_transaction_id( '' );
-		$invoice->set_key( $invoice->generate_key( 'renewal_' ) );
-		$invoice->set_number( '' );
-		$invoice->set_completed_date( '' );
-		$invoice->set_status( 'wpi-pending' );
+		$invoice->set_props($parent_invoice->get_data());
+		$invoice->set_id(0);
+		$invoice->set_items($parent_invoice->get_items());
+		$invoice->set_parent_id($parent_invoice->get_id());
+		$invoice->set_transaction_id('');
+		$invoice->set_key($invoice->generate_key('renewal_'));
+		$invoice->set_number('');
+		$invoice->set_completed_date('');
+		$invoice->set_status('wpi-pending');
 		$invoice->recalculate_total();
 		$invoice->save();
 
@@ -949,20 +949,20 @@ 
 	public function renew() {
 
 		// Complete subscription if applicable
-		if ( $this->get_bill_times() > 0 && $this->get_times_billed() >= $this->get_bill_times() ) {
+		if ($this->get_bill_times() > 0 && $this->get_times_billed() >= $this->get_bill_times()) {
 			return $this->complete();
 		}
 
 		// Calculate new expiration
 		$frequency      = $this->get_frequency();
 		$period         = $this->get_period();
-		$new_expiration = strtotime( "+ $frequency $period", $this->get_expiration_time() );
+		$new_expiration = strtotime("+ $frequency $period", $this->get_expiration_time());
 
-		$this->set_expiration( date( 'Y-m-d H:i:s',$new_expiration ) );
-		$this->set_status( 'active' );
+		$this->set_expiration(date('Y-m-d H:i:s', $new_expiration));
+		$this->set_status('active');
 		return $this->save();
 
-		do_action( 'getpaid_subscription_renewed', $this );
+		do_action('getpaid_subscription_renewed', $this);
 
 	}
 
@@ -977,11 +977,11 @@ 
 	public function complete() {
 
 		// Only mark a subscription as complete if it's not already cancelled.
-		if ( $this->has_status( 'cancelled' ) ) {
+		if ($this->has_status('cancelled')) {
 			return false;
 		}
 
-		$this->set_status( 'completed' );
+		$this->set_status('completed');
 		return $this->save();
 
 	}
@@ -993,14 +993,14 @@ 
 	 * @param  bool $check_expiration
 	 * @return int|bool Subscription id or false if $check_expiration is true and expiration date is in the future.
 	 */
-	public function expire( $check_expiration = false ) {
+	public function expire($check_expiration = false) {
 
-		if ( $check_expiration && $this->get_expiration_time() > current_time( 'timestamp' ) ) {
+		if ($check_expiration && $this->get_expiration_time() > current_time('timestamp')) {
 			// Do not mark as expired since real expiration date is in the future
 			return false;
 		}
 
-		$this->set_status( 'expired' );
+		$this->set_status('expired');
 		return $this->save();
 
 	}
@@ -1012,7 +1012,7 @@ 
 	 * @return int Subscription id.
 	 */
 	public function failing() {
-		$this->set_status( 'failing' );
+		$this->set_status('failing');
 		return $this->save();
 	}
 
@@ -1023,7 +1023,7 @@ 
      * @return int Subscription id.
      */
     public function cancel() {
-		$this->set_status( 'cancelled' );
+		$this->set_status('cancelled');
 		return $this->save();
     }
 
@@ -1034,7 +1034,7 @@ 
 	 * @return bool
 	 */
 	public function can_cancel() {
-		return apply_filters( 'wpinv_subscription_can_cancel', $this->has_status( $this->get_cancellable_statuses() ), $this );
+		return apply_filters('wpinv_subscription_can_cancel', $this->has_status($this->get_cancellable_statuses()), $this);
 	}
 
     /**
@@ -1045,7 +1045,7 @@ 
      * @return      array
      */
     public function get_cancellable_statuses() {
-        return apply_filters( 'wpinv_recurring_cancellable_statuses', array( 'active', 'trialling', 'failing' ) );
+        return apply_filters('wpinv_recurring_cancellable_statuses', array('active', 'trialling', 'failing'));
     }
 
 	/**
@@ -1055,8 +1055,8 @@ 
 	 * @return string
 	 */
 	public function get_cancel_url() {
-		$url = wp_nonce_url( add_query_arg( array( 'wpinv_action' => 'cancel_subscription', 'sub_id' => $this->get_id() ) ), 'wpinv-recurring-cancel' );
-		return apply_filters( 'wpinv_subscription_cancel_url', $url, $this );
+		$url = wp_nonce_url(add_query_arg(array('wpinv_action' => 'cancel_subscription', 'sub_id' => $this->get_id())), 'wpinv-recurring-cancel');
+		return apply_filters('wpinv_subscription_cancel_url', $url, $this);
 	}
 
 	/**
@@ -1069,7 +1069,7 @@ 
 	 * @return bool
 	 */
 	public function can_renew() {
-		return apply_filters( 'wpinv_subscription_can_renew', true, $this );
+		return apply_filters('wpinv_subscription_can_renew', true, $this);
 	}
 
 	/**
@@ -1079,8 +1079,8 @@ 
 	 * @return string
 	 */
 	public function get_renew_url() {
-		$url = wp_nonce_url( add_query_arg( array( 'wpinv_action' => 'renew_subscription', 'sub_id' => $this->get_id ) ), 'wpinv-recurring-renew' );
-		return apply_filters( 'wpinv_subscription_renew_url', $url, $this );
+		$url = wp_nonce_url(add_query_arg(array('wpinv_action' => 'renew_subscription', 'sub_id' => $this->get_id)), 'wpinv-recurring-renew');
+		return apply_filters('wpinv_subscription_renew_url', $url, $this);
 	}
 
 	/**
@@ -1090,7 +1090,7 @@ 
 	 * @return bool
 	 */
 	public function can_update() {
-		return apply_filters( 'wpinv_subscription_can_update', false, $this );
+		return apply_filters('wpinv_subscription_can_update', false, $this);
 	}
 
 	/**
@@ -1100,8 +1100,8 @@ 
 	 * @return string
 	 */
 	public function get_update_url() {
-		$url = add_query_arg( array( 'action' => 'update', 'subscription_id' => $this->get_id() ) );
-		return apply_filters( 'wpinv_subscription_update_url', $url, $this );
+		$url = add_query_arg(array('action' => 'update', 'subscription_id' => $this->get_id()));
+		return apply_filters('wpinv_subscription_update_url', $url, $this);
 	}
 
 	/**
@@ -1111,7 +1111,7 @@ 
 	 * @return string
 	 */
 	public function get_status_label() {
-		return getpaid_get_subscription_status_label( $this->get_status() );
+		return getpaid_get_subscription_status_label($this->get_status());
 	}
 
 	/**
@@ -1122,7 +1122,7 @@ 
 	 */
 	public function get_status_class() {
 		$statuses = getpaid_get_subscription_status_classes();
-		return isset( $statuses[ $this->get_status() ] ) ? $statuses[ $this->get_status() ] : 'text-white bg-secondary';
+		return isset($statuses[$this->get_status()]) ? $statuses[$this->get_status()] : 'text-white bg-secondary';
 	}
 
     /**
@@ -1133,9 +1133,9 @@ 
      */
     public function get_status_label_html() {
 
-		$status_label = sanitize_text_field( $this->get_status_label() );
-		$class        = esc_attr( $this->get_status_class() );
-		$status       = sanitize_html_class( $this->get_status_label() );
+		$status_label = sanitize_text_field($this->get_status_label());
+		$class        = esc_attr($this->get_status_class());
+		$status       = sanitize_html_class($this->get_status_label());
 
 		return "<span class='bsui'><span class='d-inline-block py-2 px-3 rounded $class $status'>$status_label</span></span>";
     }
@@ -1147,9 +1147,9 @@ 
      * @param  string $txn_id The transaction ID from the merchant processor
      * @return bool
      */
-    public function payment_exists( $txn_id = '' ) {
-		$invoice_id = WPInv_Invoice::get_invoice_id_by_field( $txn_id, 'transaction_id' );
-        return ! empty( $invoice_id );
+    public function payment_exists($txn_id = '') {
+		$invoice_id = WPInv_Invoice::get_invoice_id_by_field($txn_id, 'transaction_id');
+        return !empty($invoice_id);
 	}
 
 	/**
@@ -1161,35 +1161,35 @@ 
 		// Reset status transition variable.
 		$this->status_transition = false;
 
-		if ( $status_transition ) {
+		if ($status_transition) {
 			try {
 
 				// Fire a hook for the status change.
-				do_action( 'wpinv_subscription_' . $status_transition['to'], $this->get_id(), $this, $status_transition );
-				do_action( 'getpaid_subscription_' . $status_transition['to'], $this, $status_transition );
+				do_action('wpinv_subscription_' . $status_transition['to'], $this->get_id(), $this, $status_transition);
+				do_action('getpaid_subscription_' . $status_transition['to'], $this, $status_transition);
 
-				if ( ! empty( $status_transition['from'] ) ) {
+				if (!empty($status_transition['from'])) {
 
 					/* translators: 1: old subscription status 2: new subscription status */
-					$transition_note = sprintf( __( 'Subscription status changed from %1$s to %2$s.', 'invoicing' ), getpaid_get_subscription_status_label( $status_transition['from'] ), getpaid_get_subscription_status_label( $status_transition['to'] ) );
+					$transition_note = sprintf(__('Subscription status changed from %1$s to %2$s.', 'invoicing'), getpaid_get_subscription_status_label($status_transition['from']), getpaid_get_subscription_status_label($status_transition['to']));
 
 					// Fire another hook.
-					do_action( 'getpaid_subscription_status_' . $status_transition['from'] . '_to_' . $status_transition['to'], $this->get_id(), $this );
-					do_action( 'getpaid_subscription_status_changed', $this->get_id(), $status_transition['from'], $status_transition['to'], $this );
+					do_action('getpaid_subscription_status_' . $status_transition['from'] . '_to_' . $status_transition['to'], $this->get_id(), $this);
+					do_action('getpaid_subscription_status_changed', $this->get_id(), $status_transition['from'], $status_transition['to'], $this);
 
 					// Note the transition occurred.
-					$this->get_parent_payment()->add_note( $transition_note, false, false, true );
+					$this->get_parent_payment()->add_note($transition_note, false, false, true);
 
 				} else {
 					/* translators: %s: new invoice status */
-					$transition_note = sprintf( __( 'Subscription status set to %s.', 'invoicing' ), getpaid_get_subscription_status_label( $status_transition['to'] ) );
+					$transition_note = sprintf(__('Subscription status set to %s.', 'invoicing'), getpaid_get_subscription_status_label($status_transition['to']));
 
 					// Note the transition occurred.
-					$this->get_parent_payment()->add_note( $transition_note, false, false, true );
+					$this->get_parent_payment()->add_note($transition_note, false, false, true);
 
 				}
-			} catch ( Exception $e ) {
-				$this->get_parent_payment()->add_note( __( 'Error during subscription status transition.', 'invoicing' ) . ' ' . $e->getMessage() );
+			} catch (Exception $e) {
+				$this->get_parent_payment()->add_note(__('Error during subscription status transition.', 'invoicing') . ' ' . $e->getMessage());
 			}
 		}
 

includes/admin/subscriptions.php

Indentation +238 added lines, -238 removed lines

@@ -14,7 +14,7 @@ 
  */
 function wpinv_subscriptions_page() {
 
-	?>
+    ?>
 
 	<div class="wrap">
 		<h1><?php echo esc_html( get_admin_page_title() ); ?></h1>
@@ -22,27 +22,27 @@ 
 
 			<?php
 
-				// Verify user permissions.
-				if ( ! wpinv_current_user_can_manage_invoicing() ) {
+                // Verify user permissions.
+                if ( ! wpinv_current_user_can_manage_invoicing() ) {
 
-					echo aui()->alert(
-						array(
-							'type'    => 'danger',
-							'content' => __( 'You are not permitted to view this page.', 'invoicing' ),
-						)
-					);
+                    echo aui()->alert(
+                        array(
+                            'type'    => 'danger',
+                            'content' => __( 'You are not permitted to view this page.', 'invoicing' ),
+                        )
+                    );
 
-				} else if ( ! empty( $_GET['id'] ) && is_numeric( $_GET['id'] ) ) {
+                } else if ( ! empty( $_GET['id'] ) && is_numeric( $_GET['id'] ) ) {
 
-					// Display a single subscription.
-					wpinv_recurring_subscription_details();
-				} else {
+                    // Display a single subscription.
+                    wpinv_recurring_subscription_details();
+                } else {
 
-					// Display a list of available subscriptions.
-					getpaid_print_subscriptions_list();
-				}
+                    // Display a list of available subscriptions.
+                    getpaid_print_subscriptions_list();
+                }
 
-			?>
+            ?>
 
 		</div>
 	</div>
@@ -59,10 +59,10 @@ 
  */
 function getpaid_print_subscriptions_list() {
 
-	$subscribers_table = new WPInv_Subscriptions_List_Table();
-	$subscribers_table->prepare_items();
+    $subscribers_table = new WPInv_Subscriptions_List_Table();
+    $subscribers_table->prepare_items();
 
-	?>
+    ?>
 	<form id="subscribers-filter" class="bsui" method="get">
 		<input type="hidden" name="page" value="wpinv-subscriptions" />
 		<?php $subscribers_table->views(); ?>
@@ -80,27 +80,27 @@ 
  */
 function wpinv_recurring_subscription_details() {
 
-	// Fetch the subscription.
-	$sub = new WPInv_Subscription( (int) $_GET['id'] );
-	if ( ! $sub->get_id() ) {
+    // Fetch the subscription.
+    $sub = new WPInv_Subscription( (int) $_GET['id'] );
+    if ( ! $sub->get_id() ) {
 
-		echo aui()->alert(
-			array(
-				'type'    => 'danger',
-				'content' => __( 'Subscription not found.', 'invoicing' ),
-			)
-		);
+        echo aui()->alert(
+            array(
+                'type'    => 'danger',
+                'content' => __( 'Subscription not found.', 'invoicing' ),
+            )
+        );
 
-		return;
-	}
+        return;
+    }
 
-	// Use metaboxes to display the subscription details.
-	add_meta_box( 'getpaid_admin_subscription_details_metabox', __( 'Subscription Details', 'invoicing' ), 'getpaid_admin_subscription_details_metabox', get_current_screen(), 'normal' );
-	add_meta_box( 'getpaid_admin_subscription_update_metabox', __( 'Change Status', 'invoicing' ), 'getpaid_admin_subscription_update_metabox', get_current_screen(), 'side' );
-	add_meta_box( 'getpaid_admin_subscription_invoice_details_metabox', __( 'Invoices', 'invoicing' ), 'getpaid_admin_subscription_invoice_details_metabox', get_current_screen(), 'advanced' );
-	do_action( 'getpaid_admin_single_subscription_register_metabox', $sub );
+    // Use metaboxes to display the subscription details.
+    add_meta_box( 'getpaid_admin_subscription_details_metabox', __( 'Subscription Details', 'invoicing' ), 'getpaid_admin_subscription_details_metabox', get_current_screen(), 'normal' );
+    add_meta_box( 'getpaid_admin_subscription_update_metabox', __( 'Change Status', 'invoicing' ), 'getpaid_admin_subscription_update_metabox', get_current_screen(), 'side' );
+    add_meta_box( 'getpaid_admin_subscription_invoice_details_metabox', __( 'Invoices', 'invoicing' ), 'getpaid_admin_subscription_invoice_details_metabox', get_current_screen(), 'advanced' );
+    do_action( 'getpaid_admin_single_subscription_register_metabox', $sub );
 
-	?>
+    ?>
 
 		<form method="post" action="<?php echo admin_url( 'admin.php?page=wpinv-subscriptions&id=' . absint( $sub->get_id() ) ); ?>">
 
@@ -140,28 +140,28 @@ 
  */
 function getpaid_admin_subscription_details_metabox( $sub ) {
 
-	// Prepare subscription detail columns.
-	$fields = apply_filters(
-		'getpaid_subscription_admin_page_fields',
-		array(
-			'subscription'   => __( 'Subscription', 'invoicing' ),
-			'customer'       => __( 'Customer', 'invoicing' ),
-			'amount'         => __( 'Amount', 'invoicing' ),
-			'start_date'     => __( 'Start Date', 'invoicing' ),
-			'renews_on'      => __( 'Next Payment', 'invoicing' ),
-			'renewals'       => __( 'Renewals', 'invoicing' ),
-			'item'           => __( 'Item', 'invoicing' ),
-			'gateway'        => __( 'Payment Method', 'invoicing' ),
-			'profile_id'     => __( 'Profile ID', 'invoicing' ),
-			'status'         => __( 'Status', 'invoicing' ),
-		)
-	);
-
-	if ( ! $sub->is_active() && isset( $fields['renews_on'] ) ) {
-		unset( $fields['renews_on'] );
-	}
-
-	?>
+    // Prepare subscription detail columns.
+    $fields = apply_filters(
+        'getpaid_subscription_admin_page_fields',
+        array(
+            'subscription'   => __( 'Subscription', 'invoicing' ),
+            'customer'       => __( 'Customer', 'invoicing' ),
+            'amount'         => __( 'Amount', 'invoicing' ),
+            'start_date'     => __( 'Start Date', 'invoicing' ),
+            'renews_on'      => __( 'Next Payment', 'invoicing' ),
+            'renewals'       => __( 'Renewals', 'invoicing' ),
+            'item'           => __( 'Item', 'invoicing' ),
+            'gateway'        => __( 'Payment Method', 'invoicing' ),
+            'profile_id'     => __( 'Profile ID', 'invoicing' ),
+            'status'         => __( 'Status', 'invoicing' ),
+        )
+    );
+
+    if ( ! $sub->is_active() && isset( $fields['renews_on'] ) ) {
+        unset( $fields['renews_on'] );
+    }
+
+    ?>
 
 		<table class="table table-borderless" style="font-size: 14px;">
 			<tbody>
@@ -195,20 +195,20 @@ 
  */
 function getpaid_admin_subscription_metabox_display_customer( $subscription ) {
 
-	$username = __( '(Missing User)', 'invoicing' );
+    $username = __( '(Missing User)', 'invoicing' );
 
-	$user = get_userdata( $subscription->get_customer_id() );
-	if ( $user ) {
+    $user = get_userdata( $subscription->get_customer_id() );
+    if ( $user ) {
 
-		$username = sprintf(
-			'<a href="user-edit.php?user_id=%s">%s</a>',
-			absint( $user->ID ),
-			! empty( $user->display_name ) ? sanitize_text_field( $user->display_name ) : sanitize_email( $user->user_email )
-		);
+        $username = sprintf(
+            '<a href="user-edit.php?user_id=%s">%s</a>',
+            absint( $user->ID ),
+            ! empty( $user->display_name ) ? sanitize_text_field( $user->display_name ) : sanitize_email( $user->user_email )
+        );
 
-	}
+    }
 
-	echo  $username;
+    echo  $username;
 }
 add_action( 'getpaid_subscription_admin_display_customer', 'getpaid_admin_subscription_metabox_display_customer' );
 
@@ -219,43 +219,43 @@ 
  */
 function getpaid_admin_subscription_metabox_display_amount( $subscription ) {
 
-	$initial   = wpinv_price( wpinv_format_amount( wpinv_sanitize_amount( $subscription->get_initial_amount() ) ), $subscription->get_parent_payment()->get_currency() );
-	$recurring = wpinv_price( wpinv_format_amount( wpinv_sanitize_amount( $subscription->get_recurring_amount() ) ), $subscription->get_parent_payment()->get_currency() );
-	$period    = 1 == $subscription->get_frequency() ? getpaid_get_subscription_period_label( $subscription->get_period() ) : WPInv_Subscriptions::wpinv_get_pretty_subscription_frequency( $subscription->get_period(),$subscription->get_frequency() );
+    $initial   = wpinv_price( wpinv_format_amount( wpinv_sanitize_amount( $subscription->get_initial_amount() ) ), $subscription->get_parent_payment()->get_currency() );
+    $recurring = wpinv_price( wpinv_format_amount( wpinv_sanitize_amount( $subscription->get_recurring_amount() ) ), $subscription->get_parent_payment()->get_currency() );
+    $period    = 1 == $subscription->get_frequency() ? getpaid_get_subscription_period_label( $subscription->get_period() ) : WPInv_Subscriptions::wpinv_get_pretty_subscription_frequency( $subscription->get_period(),$subscription->get_frequency() );
 
-	if ( $subscription->has_trial_period() ) {
+    if ( $subscription->has_trial_period() ) {
 
-		// translators: $1: is the initial amount, $2: is the trial period, $3: is the recurring amount, $4: is the recurring period
-		$amount = sprintf(
-			_x( '%1$s trial for %2$s(s) then %3$s / %4$s', 'Subscription amount on admin table. (e.g.: $10 trial for 1 month then $120 / year)', 'invoicing' ),
-			$initial,
-			sanitize_text_field( $subscription->get_trial_period() ),
-			$recurring,
-			sanitize_text_field( strtolower( $period ) )
-		);
+        // translators: $1: is the initial amount, $2: is the trial period, $3: is the recurring amount, $4: is the recurring period
+        $amount = sprintf(
+            _x( '%1$s trial for %2$s(s) then %3$s / %4$s', 'Subscription amount on admin table. (e.g.: $10 trial for 1 month then $120 / year)', 'invoicing' ),
+            $initial,
+            sanitize_text_field( $subscription->get_trial_period() ),
+            $recurring,
+            sanitize_text_field( strtolower( $period ) )
+        );
 
-	} else if ( $initial != $recurring ) {
+    } else if ( $initial != $recurring ) {
 
-		// translators: $1: is the initial amount, $2: is the recurring amount, $3: is the recurring perio
-		$amount = sprintf(
-			_x( 'Initial payment of %1$s then %2$s / %3$s', 'Subscription amount on admin table. (e.g.:Initial payment of $100 then $120 / year)', 'invoicing' ),
-			$initial,
-			$recurring,
-			sanitize_text_field( strtolower( $period ) )
-		);
+        // translators: $1: is the initial amount, $2: is the recurring amount, $3: is the recurring perio
+        $amount = sprintf(
+            _x( 'Initial payment of %1$s then %2$s / %3$s', 'Subscription amount on admin table. (e.g.:Initial payment of $100 then $120 / year)', 'invoicing' ),
+            $initial,
+            $recurring,
+            sanitize_text_field( strtolower( $period ) )
+        );
 
-	} else {
+    } else {
 
-		// translators: $1: is the recurring amount, $2: is the recurring period
-		$amount = sprintf(
-			_x( '%1$s / %2$s', 'Subscription amount on admin table. (e.g.: $120 / year)', 'invoicing' ),
-			$initial,
-			sanitize_text_field( strtolower( $period ) )
-		);
+        // translators: $1: is the recurring amount, $2: is the recurring period
+        $amount = sprintf(
+            _x( '%1$s / %2$s', 'Subscription amount on admin table. (e.g.: $120 / year)', 'invoicing' ),
+            $initial,
+            sanitize_text_field( strtolower( $period ) )
+        );
 
-	}
+    }
 
-	echo "<span>$amount</span>";
+    echo "<span>$amount</span>";
 }
 add_action( 'getpaid_subscription_admin_display_amount', 'getpaid_admin_subscription_metabox_display_amount' );
 
@@ -265,7 +265,7 @@ 
  * @param WPInv_Subscription $subscription
  */
 function getpaid_admin_subscription_metabox_display_id( $subscription ) {
-	echo  '#' . absint( $subscription->get_id() );
+    echo  '#' . absint( $subscription->get_id() );
 }
 add_action( 'getpaid_subscription_admin_display_subscription', 'getpaid_admin_subscription_metabox_display_id' );
 
@@ -276,12 +276,12 @@ 
  */
 function getpaid_admin_subscription_metabox_display_start_date( $subscription ) {
 
-	$created = $subscription->get_date_created();
-	if ( empty( $created ) || '0000-00-00 00:00:00' == $created ) {
-		echo "&mdash;";
-	} else {
-		echo date_i18n( /** @scrutinizer ignore-type */get_option( 'date_format' ), strtotime( $created ) );
-	}
+    $created = $subscription->get_date_created();
+    if ( empty( $created ) || '0000-00-00 00:00:00' == $created ) {
+        echo "&mdash;";
+    } else {
+        echo date_i18n( /** @scrutinizer ignore-type */get_option( 'date_format' ), strtotime( $created ) );
+    }
 
 }
 add_action( 'getpaid_subscription_admin_display_start_date', 'getpaid_admin_subscription_metabox_display_start_date' );
@@ -293,12 +293,12 @@ 
  */
 function getpaid_admin_subscription_metabox_display_renews_on( $subscription ) {
 
-	$expiration = $subscription->get_expiration();
-	if ( empty( $expiration ) || '0000-00-00 00:00:00' == $expiration ) {
-		echo "&mdash;";
-	} else {
-		echo date_i18n( /** @scrutinizer ignore-type */get_option( 'date_format' ), strtotime( $expiration ) );
-	}
+    $expiration = $subscription->get_expiration();
+    if ( empty( $expiration ) || '0000-00-00 00:00:00' == $expiration ) {
+        echo "&mdash;";
+    } else {
+        echo date_i18n( /** @scrutinizer ignore-type */get_option( 'date_format' ), strtotime( $expiration ) );
+    }
 
 }
 add_action( 'getpaid_subscription_admin_display_renews_on', 'getpaid_admin_subscription_metabox_display_renews_on' );
@@ -309,8 +309,8 @@ 
  * @param WPInv_Subscription $subscription
  */
 function getpaid_admin_subscription_metabox_display_renewals( $subscription ) {
-	$max_bills = $subscription->get_bill_times();
-	echo $subscription->get_times_billed() . ' / ' . ( empty( $max_bills ) ? "&infin;" : $max_bills );
+    $max_bills = $subscription->get_bill_times();
+    echo $subscription->get_times_billed() . ' / ' . ( empty( $max_bills ) ? "&infin;" : $max_bills );
 }
 add_action( 'getpaid_subscription_admin_display_renewals', 'getpaid_admin_subscription_metabox_display_renewals' );
 
@@ -321,16 +321,16 @@ 
  */
 function getpaid_admin_subscription_metabox_display_item( $subscription ) {
 
-	$item = get_post( $subscription->get_product_id() );
+    $item = get_post( $subscription->get_product_id() );
 
-	if ( ! empty( $item ) ) {
-		$link = get_edit_post_link( $item );
-		$link = esc_url( $link );
-		$name = esc_html( get_the_title( $item ) );
-		echo "<a href='$link'>$name</a>";
-	} else {
-		echo sprintf( __( 'Item #%s', 'invoicing' ), $subscription->get_product_id() );
-	}
+    if ( ! empty( $item ) ) {
+        $link = get_edit_post_link( $item );
+        $link = esc_url( $link );
+        $name = esc_html( get_the_title( $item ) );
+        echo "<a href='$link'>$name</a>";
+    } else {
+        echo sprintf( __( 'Item #%s', 'invoicing' ), $subscription->get_product_id() );
+    }
 
 }
 add_action( 'getpaid_subscription_admin_display_item', 'getpaid_admin_subscription_metabox_display_item' );
@@ -342,13 +342,13 @@ 
  */
 function getpaid_admin_subscription_metabox_display_gateway( $subscription ) {
 
-	$gateway = $subscription->get_gateway();
+    $gateway = $subscription->get_gateway();
 
-	if ( ! empty( $gateway ) ) {
-		echo sanitize_text_field( wpinv_get_gateway_admin_label( $gateway ) );
-	} else {
-		echo "&mdash;";
-	}
+    if ( ! empty( $gateway ) ) {
+        echo sanitize_text_field( wpinv_get_gateway_admin_label( $gateway ) );
+    } else {
+        echo "&mdash;";
+    }
 
 }
 add_action( 'getpaid_subscription_admin_display_gateway', 'getpaid_admin_subscription_metabox_display_gateway' );
@@ -359,7 +359,7 @@ 
  * @param WPInv_Subscription $subscription
  */
 function getpaid_admin_subscription_metabox_display_status( $subscription ) {
-	echo $subscription->get_status_label_html();
+    echo $subscription->get_status_label_html();
 }
 add_action( 'getpaid_subscription_admin_display_status', 'getpaid_admin_subscription_metabox_display_status' );
 
@@ -370,14 +370,14 @@ 
  */
 function getpaid_admin_subscription_metabox_display_profile_id( $subscription ) {
 
-	$profile_id = $subscription->get_profile_id();
+    $profile_id = $subscription->get_profile_id();
 
-	if ( ! empty( $profile_id ) ) {
-		$profile_id = sanitize_text_field( $profile_id );
-		echo apply_filters( 'getpaid_subscription_profile_id_display', $profile_id, $subscription );
-	} else {
-		echo "&mdash;";
-	}
+    if ( ! empty( $profile_id ) ) {
+        $profile_id = sanitize_text_field( $profile_id );
+        echo apply_filters( 'getpaid_subscription_profile_id_display', $profile_id, $subscription );
+    } else {
+        echo "&mdash;";
+    }
 
 }
 add_action( 'getpaid_subscription_admin_display_profile_id', 'getpaid_admin_subscription_metabox_display_profile_id' );
@@ -389,39 +389,39 @@ 
  */
 function getpaid_admin_subscription_update_metabox( $subscription ) {
 
-	?>
+    ?>
 	<div class="mt-3">
 
 		<?php
-			echo aui()->select(
-				array(
-					'options'          => getpaid_get_subscription_statuses(),
-					'name'             => 'subscription_status',
-					'id'               => 'subscription_status_update_select',
-					'required'         => true,
-					'no_wrap'          => false,
-					'label'            => __( 'Subscription Status', 'invoicing' ),
-					'help_text'        => __( 'Updating the status will trigger related actions and hooks', 'invoicing' ),
-					'select2'          => true,
-					'value'            => $subscription->get_status( 'edit' ),
-				)
-			);
-		?>
+            echo aui()->select(
+                array(
+                    'options'          => getpaid_get_subscription_statuses(),
+                    'name'             => 'subscription_status',
+                    'id'               => 'subscription_status_update_select',
+                    'required'         => true,
+                    'no_wrap'          => false,
+                    'label'            => __( 'Subscription Status', 'invoicing' ),
+                    'help_text'        => __( 'Updating the status will trigger related actions and hooks', 'invoicing' ),
+                    'select2'          => true,
+                    'value'            => $subscription->get_status( 'edit' ),
+                )
+            );
+        ?>
 
 		<div class="mt-2 px-3 py-2 bg-light border-top" style="margin: -12px;">
 	
 		<?php
-			submit_button( __( 'Update', 'invoicing' ), 'primary', 'submit', false );
+            submit_button( __( 'Update', 'invoicing' ), 'primary', 'submit', false );
 
-			$url    = esc_url( wp_nonce_url( add_query_arg( 'getpaid-admin-action', 'subscription_manual_renew' ), 'getpaid-nonce', 'getpaid-nonce' ) );
-			$anchor = __( 'Renew Subscription', 'invoicing' );
-			$title  = esc_attr__( 'Are you sure you want to extend the subscription and generate a new invoice that will be automatically marked as paid?', 'invoicing' );
+            $url    = esc_url( wp_nonce_url( add_query_arg( 'getpaid-admin-action', 'subscription_manual_renew' ), 'getpaid-nonce', 'getpaid-nonce' ) );
+            $anchor = __( 'Renew Subscription', 'invoicing' );
+            $title  = esc_attr__( 'Are you sure you want to extend the subscription and generate a new invoice that will be automatically marked as paid?', 'invoicing' );
 
-			if ( $subscription->is_active() ) {
-				echo "<a href='$url' class='float-right text-muted' onclick='return confirm(\"$title\")'>$anchor</a>";
-			}
+            if ( $subscription->is_active() ) {
+                echo "<a href='$url' class='float-right text-muted' onclick='return confirm(\"$title\")'>$anchor</a>";
+            }
 
-	echo '</div></div>';
+    echo '</div></div>';
 }
 
 /**
@@ -431,27 +431,27 @@ 
  */
 function getpaid_admin_subscription_invoice_details_metabox( $subscription ) {
 
-	$columns = apply_filters(
-		'getpaid_subscription_related_invoices_columns',
-		array(
-
-			'invoice'      => __( 'Invoice', 'invoicing' ),
-			'relationship' => __( 'Relationship', 'invoicing' ),
-			'date'         => __( 'Date', 'invoicing' ),
-			'status'       => __( 'Status', 'invoicing' ),
-			'total'        => __( 'Total', 'invoicing' ),
-		)
-	);
-
-	// Prepare the invoices.
-	$payments = $subscription->get_child_payments();
-	$parent   = $subscription->get_parent_invoice();
-
-	if ( $parent->get_id() ) {
-		$payments = array_merge( array( $parent ), $payments );
-	}
+    $columns = apply_filters(
+        'getpaid_subscription_related_invoices_columns',
+        array(
+
+            'invoice'      => __( 'Invoice', 'invoicing' ),
+            'relationship' => __( 'Relationship', 'invoicing' ),
+            'date'         => __( 'Date', 'invoicing' ),
+            'status'       => __( 'Status', 'invoicing' ),
+            'total'        => __( 'Total', 'invoicing' ),
+        )
+    );
+
+    // Prepare the invoices.
+    $payments = $subscription->get_child_payments();
+    $parent   = $subscription->get_parent_invoice();
+
+    if ( $parent->get_id() ) {
+        $payments = array_merge( array( $parent ), $payments );
+    }
 	
-	?>
+    ?>
 		<div class="m-0" style="overflow: auto;">
 
 			<table class="w-100 bg-white">
@@ -459,13 +459,13 @@ 
 				<thead>
 					<tr>
 						<?php
-							foreach ( $columns as $key => $label ) {
-								$key   = esc_attr( $key );
-								$label = sanitize_text_field( $label );
+                            foreach ( $columns as $key => $label ) {
+                                $key   = esc_attr( $key );
+                                $label = sanitize_text_field( $label );
 
-								echo "<th class='subscription-invoice-field-$key bg-light p-2 text-left color-dark'>$label</th>";
-							}
-						?>
+                                echo "<th class='subscription-invoice-field-$key bg-light p-2 text-left color-dark'>$label</th>";
+                            }
+                        ?>
 					</tr>
 				</thead>
 
@@ -473,57 +473,57 @@ 
 
 					<?php
 
-						foreach( $payments as $payment ) :
+                        foreach( $payments as $payment ) :
 
-							// Ensure that we have an invoice.
-							if ( ! is_a( $payment, 'WPInv_Invoice' ) ) {
-								$payment = new WPInv_Invoice( $payment );
-							}
+                            // Ensure that we have an invoice.
+                            if ( ! is_a( $payment, 'WPInv_Invoice' ) ) {
+                                $payment = new WPInv_Invoice( $payment );
+                            }
 
-							// Abort if the invoice is invalid.
-							if ( ! $payment->get_id() ) {
-								continue;
-							}
+                            // Abort if the invoice is invalid.
+                            if ( ! $payment->get_id() ) {
+                                continue;
+                            }
 
-							echo '<tr>';
+                            echo '<tr>';
 
-								foreach ( array_keys( $columns ) as $key ) {
+                                foreach ( array_keys( $columns ) as $key ) {
 									
-									echo '<td class="p-2 text-left">';
+                                    echo '<td class="p-2 text-left">';
 
-										switch( $key ) {
+                                        switch( $key ) {
 
-											case 'total':
-												echo '<strong>' . wpinv_price( wpinv_format_amount( wpinv_sanitize_amount( $payment->get_total ) ), $payment->get_currency() ) . '</strong>';
-												break;
+                                            case 'total':
+                                                echo '<strong>' . wpinv_price( wpinv_format_amount( wpinv_sanitize_amount( $payment->get_total ) ), $payment->get_currency() ) . '</strong>';
+                                                break;
 
-											case 'relationship':
-												echo $payment->is_renewal() ? __( 'Renewal Invoice', 'invoicing' ) : __( 'Initial Invoice', 'invoicing' );
-												break;
+                                            case 'relationship':
+                                                echo $payment->is_renewal() ? __( 'Renewal Invoice', 'invoicing' ) : __( 'Initial Invoice', 'invoicing' );
+                                                break;
 
-											case 'date':
-												echo date_i18n( /** @scrutinizer ignore-type */get_option( 'date_format' ), strtotime( $payment->get_date_created() ) );
-												break;
+                                            case 'date':
+                                                echo date_i18n( /** @scrutinizer ignore-type */get_option( 'date_format' ), strtotime( $payment->get_date_created() ) );
+                                                break;
 
-											case 'status':
-												echo $payment->get_status_label_html();
-												break;
+                                            case 'status':
+                                                echo $payment->get_status_label_html();
+                                                break;
 
-											case 'invoice':
-												$link    = esc_url( get_edit_post_link( $payment->get_id() ) );
-												$invoice = sanitize_text_field( $payment->get_number() );
-												echo "<a href='$link'>$invoice</a>";
-												break;
-										}
+                                            case 'invoice':
+                                                $link    = esc_url( get_edit_post_link( $payment->get_id() ) );
+                                                $invoice = sanitize_text_field( $payment->get_number() );
+                                                echo "<a href='$link'>$invoice</a>";
+                                                break;
+                                        }
 
-									echo '</td>';
+                                    echo '</td>';
 								
-								}
+                                }
 
-							echo '</tr>';
+                            echo '</tr>';
 
-						endforeach;
-					?>
+                        endforeach;
+                    ?>
 
 				</tbody>
 
@@ -543,30 +543,30 @@ 
  */
 function wpinv_recurring_process_subscription_deletion() {
 
-	if( empty( $_POST['sub_id'] ) ) {
-		return;
-	}
+    if( empty( $_POST['sub_id'] ) ) {
+        return;
+    }
 
-	if( empty( $_POST['wpinv_delete_subscription'] ) ) {
-		return;
-	}
+    if( empty( $_POST['wpinv_delete_subscription'] ) ) {
+        return;
+    }
 
-	if( ! current_user_can( 'manage_invoicing') ) {
-		return;
-	}
+    if( ! current_user_can( 'manage_invoicing') ) {
+        return;
+    }
 
-	if( ! wp_verify_nonce( $_POST['wpinv-recurring-update-nonce'], 'wpinv-recurring-update' ) ) {
-		wp_die( __( 'Nonce verification failed', 'invoicing' ), __( 'Error', 'invoicing' ), array( 'response' => 403 ) );
-	}
+    if( ! wp_verify_nonce( $_POST['wpinv-recurring-update-nonce'], 'wpinv-recurring-update' ) ) {
+        wp_die( __( 'Nonce verification failed', 'invoicing' ), __( 'Error', 'invoicing' ), array( 'response' => 403 ) );
+    }
 
-	$subscription = new WPInv_Subscription( absint( $_POST['sub_id'] ) );
+    $subscription = new WPInv_Subscription( absint( $_POST['sub_id'] ) );
 
-	delete_post_meta( $subscription->parent_payment_id, '_wpinv_subscription_payment' );
+    delete_post_meta( $subscription->parent_payment_id, '_wpinv_subscription_payment' );
 
-	$subscription->delete();
+    $subscription->delete();
 
-	wp_redirect( admin_url( 'admin.php?page=wpinv-subscriptions&wpinv-message=deleted' ) );
-	exit;
+    wp_redirect( admin_url( 'admin.php?page=wpinv-subscriptions&wpinv-message=deleted' ) );
+    exit;
 
 }
 add_action( 'admin_init', 'wpinv_recurring_process_subscription_deletion', 2 );

Spacing +131 added lines, -131 removed lines

@@ -3,7 +3,7 @@ 
  * Contains functions that display the subscriptions admin page.
  */
 
-defined( 'ABSPATH' ) || exit;
+defined('ABSPATH') || exit;
 
 /**
  * Render the Subscriptions page
@@ -17,22 +17,22 @@ 
 	?>
 
 	<div class="wrap">
-		<h1><?php echo esc_html( get_admin_page_title() ); ?></h1>
+		<h1><?php echo esc_html(get_admin_page_title()); ?></h1>
 		<div class="bsui">
 
 			<?php
 
 				// Verify user permissions.
-				if ( ! wpinv_current_user_can_manage_invoicing() ) {
+				if (!wpinv_current_user_can_manage_invoicing()) {
 
 					echo aui()->alert(
 						array(
 							'type'    => 'danger',
-							'content' => __( 'You are not permitted to view this page.', 'invoicing' ),
+							'content' => __('You are not permitted to view this page.', 'invoicing'),
 						)
 					);
 
-				} else if ( ! empty( $_GET['id'] ) && is_numeric( $_GET['id'] ) ) {
+				} else if (!empty($_GET['id']) && is_numeric($_GET['id'])) {
 
 					// Display a single subscription.
 					wpinv_recurring_subscription_details();
@@ -81,13 +81,13 @@ 
 function wpinv_recurring_subscription_details() {
 
 	// Fetch the subscription.
-	$sub = new WPInv_Subscription( (int) $_GET['id'] );
-	if ( ! $sub->get_id() ) {
+	$sub = new WPInv_Subscription((int) $_GET['id']);
+	if (!$sub->get_id()) {
 
 		echo aui()->alert(
 			array(
 				'type'    => 'danger',
-				'content' => __( 'Subscription not found.', 'invoicing' ),
+				'content' => __('Subscription not found.', 'invoicing'),
 			)
 		);
 
@@ -95,31 +95,31 @@ 
 	}
 
 	// Use metaboxes to display the subscription details.
-	add_meta_box( 'getpaid_admin_subscription_details_metabox', __( 'Subscription Details', 'invoicing' ), 'getpaid_admin_subscription_details_metabox', get_current_screen(), 'normal' );
-	add_meta_box( 'getpaid_admin_subscription_update_metabox', __( 'Change Status', 'invoicing' ), 'getpaid_admin_subscription_update_metabox', get_current_screen(), 'side' );
-	add_meta_box( 'getpaid_admin_subscription_invoice_details_metabox', __( 'Invoices', 'invoicing' ), 'getpaid_admin_subscription_invoice_details_metabox', get_current_screen(), 'advanced' );
-	do_action( 'getpaid_admin_single_subscription_register_metabox', $sub );
+	add_meta_box('getpaid_admin_subscription_details_metabox', __('Subscription Details', 'invoicing'), 'getpaid_admin_subscription_details_metabox', get_current_screen(), 'normal');
+	add_meta_box('getpaid_admin_subscription_update_metabox', __('Change Status', 'invoicing'), 'getpaid_admin_subscription_update_metabox', get_current_screen(), 'side');
+	add_meta_box('getpaid_admin_subscription_invoice_details_metabox', __('Invoices', 'invoicing'), 'getpaid_admin_subscription_invoice_details_metabox', get_current_screen(), 'advanced');
+	do_action('getpaid_admin_single_subscription_register_metabox', $sub);
 
 	?>
 
-		<form method="post" action="<?php echo admin_url( 'admin.php?page=wpinv-subscriptions&id=' . absint( $sub->get_id() ) ); ?>">
+		<form method="post" action="<?php echo admin_url('admin.php?page=wpinv-subscriptions&id=' . absint($sub->get_id())); ?>">
 
-			<?php wp_nonce_field( 'getpaid-nonce', 'getpaid-nonce' ); ?>
-			<?php wp_nonce_field( 'meta-box-order', 'meta-box-order-nonce', false ); ?>
-			<?php wp_nonce_field( 'closedpostboxes', 'closedpostboxesnonce', false ); ?>
+			<?php wp_nonce_field('getpaid-nonce', 'getpaid-nonce'); ?>
+			<?php wp_nonce_field('meta-box-order', 'meta-box-order-nonce', false); ?>
+			<?php wp_nonce_field('closedpostboxes', 'closedpostboxesnonce', false); ?>
 			<input type="hidden" name="getpaid-admin-action" value="update_single_subscription" />
-			<input type="hidden" name="subscription_id" value="<?php echo (int) $sub->get_id() ;?>" />
+			<input type="hidden" name="subscription_id" value="<?php echo (int) $sub->get_id(); ?>" />
 
 			<div id="poststuff">
 				<div id="post-body" class="metabox-holder columns-<?php echo 1 == get_current_screen()->get_columns() ? '1' : '2'; ?>">
 
 					<div id="postbox-container-1" class="postbox-container">
-						<?php do_meta_boxes( get_current_screen(), 'side', $sub ); ?>
+						<?php do_meta_boxes(get_current_screen(), 'side', $sub); ?>
 					</div>
 
 					<div id="postbox-container-2" class="postbox-container">
-						<?php do_meta_boxes( get_current_screen(), 'normal', $sub ); ?>
-						<?php do_meta_boxes( get_current_screen(), 'advanced', $sub ); ?>
+						<?php do_meta_boxes(get_current_screen(), 'normal', $sub); ?>
+						<?php do_meta_boxes(get_current_screen(), 'advanced', $sub); ?>
 					</div>
 
 				</div>
@@ -138,27 +138,27 @@ 
  *
  * @param WPInv_Subscription $sub
  */
-function getpaid_admin_subscription_details_metabox( $sub ) {
+function getpaid_admin_subscription_details_metabox($sub) {
 
 	// Prepare subscription detail columns.
 	$fields = apply_filters(
 		'getpaid_subscription_admin_page_fields',
 		array(
-			'subscription'   => __( 'Subscription', 'invoicing' ),
-			'customer'       => __( 'Customer', 'invoicing' ),
-			'amount'         => __( 'Amount', 'invoicing' ),
-			'start_date'     => __( 'Start Date', 'invoicing' ),
-			'renews_on'      => __( 'Next Payment', 'invoicing' ),
-			'renewals'       => __( 'Renewals', 'invoicing' ),
-			'item'           => __( 'Item', 'invoicing' ),
-			'gateway'        => __( 'Payment Method', 'invoicing' ),
-			'profile_id'     => __( 'Profile ID', 'invoicing' ),
-			'status'         => __( 'Status', 'invoicing' ),
+			'subscription'   => __('Subscription', 'invoicing'),
+			'customer'       => __('Customer', 'invoicing'),
+			'amount'         => __('Amount', 'invoicing'),
+			'start_date'     => __('Start Date', 'invoicing'),
+			'renews_on'      => __('Next Payment', 'invoicing'),
+			'renewals'       => __('Renewals', 'invoicing'),
+			'item'           => __('Item', 'invoicing'),
+			'gateway'        => __('Payment Method', 'invoicing'),
+			'profile_id'     => __('Profile ID', 'invoicing'),
+			'status'         => __('Status', 'invoicing'),
 		)
 	);
 
-	if ( ! $sub->is_active() && isset( $fields['renews_on'] ) ) {
-		unset( $fields['renews_on'] );
+	if (!$sub->is_active() && isset($fields['renews_on'])) {
+		unset($fields['renews_on']);
 	}
 
 	?>
@@ -166,16 +166,16 @@ 
 		<table class="table table-borderless" style="font-size: 14px;">
 			<tbody>
 
-				<?php foreach ( $fields as $key => $label ) : ?>
+				<?php foreach ($fields as $key => $label) : ?>
 
-					<tr class="getpaid-subscription-meta-<?php echo sanitize_html_class( $key ); ?>">
+					<tr class="getpaid-subscription-meta-<?php echo sanitize_html_class($key); ?>">
 
 						<th class="w-25" style="font-weight: 500;">
-							<?php echo sanitize_text_field( $label ); ?>
+							<?php echo sanitize_text_field($label); ?>
 						</th>
 
 						<td class="w-75 text-muted">
-							<?php do_action( 'getpaid_subscription_admin_display_' . sanitize_text_field( $key ), $sub ); ?>
+							<?php do_action('getpaid_subscription_admin_display_' . sanitize_text_field($key), $sub); ?>
 						</td>
 
 					</tr>
@@ -193,201 +193,201 @@ 
  *
  * @param WPInv_Subscription $subscription
  */
-function getpaid_admin_subscription_metabox_display_customer( $subscription ) {
+function getpaid_admin_subscription_metabox_display_customer($subscription) {
 
-	$username = __( '(Missing User)', 'invoicing' );
+	$username = __('(Missing User)', 'invoicing');
 
-	$user = get_userdata( $subscription->get_customer_id() );
-	if ( $user ) {
+	$user = get_userdata($subscription->get_customer_id());
+	if ($user) {
 
 		$username = sprintf(
 			'<a href="user-edit.php?user_id=%s">%s</a>',
-			absint( $user->ID ),
-			! empty( $user->display_name ) ? sanitize_text_field( $user->display_name ) : sanitize_email( $user->user_email )
+			absint($user->ID),
+			!empty($user->display_name) ? sanitize_text_field($user->display_name) : sanitize_email($user->user_email)
 		);
 
 	}
 
 	echo  $username;
 }
-add_action( 'getpaid_subscription_admin_display_customer', 'getpaid_admin_subscription_metabox_display_customer' );
+add_action('getpaid_subscription_admin_display_customer', 'getpaid_admin_subscription_metabox_display_customer');
 
 /**
  * Displays the subscription amount.
  *
  * @param WPInv_Subscription $subscription
  */
-function getpaid_admin_subscription_metabox_display_amount( $subscription ) {
+function getpaid_admin_subscription_metabox_display_amount($subscription) {
 
-	$initial   = wpinv_price( wpinv_format_amount( wpinv_sanitize_amount( $subscription->get_initial_amount() ) ), $subscription->get_parent_payment()->get_currency() );
-	$recurring = wpinv_price( wpinv_format_amount( wpinv_sanitize_amount( $subscription->get_recurring_amount() ) ), $subscription->get_parent_payment()->get_currency() );
-	$period    = 1 == $subscription->get_frequency() ? getpaid_get_subscription_period_label( $subscription->get_period() ) : WPInv_Subscriptions::wpinv_get_pretty_subscription_frequency( $subscription->get_period(),$subscription->get_frequency() );
+	$initial   = wpinv_price(wpinv_format_amount(wpinv_sanitize_amount($subscription->get_initial_amount())), $subscription->get_parent_payment()->get_currency());
+	$recurring = wpinv_price(wpinv_format_amount(wpinv_sanitize_amount($subscription->get_recurring_amount())), $subscription->get_parent_payment()->get_currency());
+	$period    = 1 == $subscription->get_frequency() ? getpaid_get_subscription_period_label($subscription->get_period()) : WPInv_Subscriptions::wpinv_get_pretty_subscription_frequency($subscription->get_period(), $subscription->get_frequency());
 
-	if ( $subscription->has_trial_period() ) {
+	if ($subscription->has_trial_period()) {
 
 		// translators: $1: is the initial amount, $2: is the trial period, $3: is the recurring amount, $4: is the recurring period
 		$amount = sprintf(
-			_x( '%1$s trial for %2$s(s) then %3$s / %4$s', 'Subscription amount on admin table. (e.g.: $10 trial for 1 month then $120 / year)', 'invoicing' ),
+			_x('%1$s trial for %2$s(s) then %3$s / %4$s', 'Subscription amount on admin table. (e.g.: $10 trial for 1 month then $120 / year)', 'invoicing'),
 			$initial,
-			sanitize_text_field( $subscription->get_trial_period() ),
+			sanitize_text_field($subscription->get_trial_period()),
 			$recurring,
-			sanitize_text_field( strtolower( $period ) )
+			sanitize_text_field(strtolower($period))
 		);
 
-	} else if ( $initial != $recurring ) {
+	} else if ($initial != $recurring) {
 
 		// translators: $1: is the initial amount, $2: is the recurring amount, $3: is the recurring perio
 		$amount = sprintf(
-			_x( 'Initial payment of %1$s then %2$s / %3$s', 'Subscription amount on admin table. (e.g.:Initial payment of $100 then $120 / year)', 'invoicing' ),
+			_x('Initial payment of %1$s then %2$s / %3$s', 'Subscription amount on admin table. (e.g.:Initial payment of $100 then $120 / year)', 'invoicing'),
 			$initial,
 			$recurring,
-			sanitize_text_field( strtolower( $period ) )
+			sanitize_text_field(strtolower($period))
 		);
 
 	} else {
 
 		// translators: $1: is the recurring amount, $2: is the recurring period
 		$amount = sprintf(
-			_x( '%1$s / %2$s', 'Subscription amount on admin table. (e.g.: $120 / year)', 'invoicing' ),
+			_x('%1$s / %2$s', 'Subscription amount on admin table. (e.g.: $120 / year)', 'invoicing'),
 			$initial,
-			sanitize_text_field( strtolower( $period ) )
+			sanitize_text_field(strtolower($period))
 		);
 
 	}
 
 	echo "<span>$amount</span>";
 }
-add_action( 'getpaid_subscription_admin_display_amount', 'getpaid_admin_subscription_metabox_display_amount' );
+add_action('getpaid_subscription_admin_display_amount', 'getpaid_admin_subscription_metabox_display_amount');
 
 /**
  * Displays the subscription id.
  *
  * @param WPInv_Subscription $subscription
  */
-function getpaid_admin_subscription_metabox_display_id( $subscription ) {
-	echo  '#' . absint( $subscription->get_id() );
+function getpaid_admin_subscription_metabox_display_id($subscription) {
+	echo  '#' . absint($subscription->get_id());
 }
-add_action( 'getpaid_subscription_admin_display_subscription', 'getpaid_admin_subscription_metabox_display_id' );
+add_action('getpaid_subscription_admin_display_subscription', 'getpaid_admin_subscription_metabox_display_id');
 
 /**
  * Displays the subscription renewal date.
  *
  * @param WPInv_Subscription $subscription
  */
-function getpaid_admin_subscription_metabox_display_start_date( $subscription ) {
+function getpaid_admin_subscription_metabox_display_start_date($subscription) {
 
 	$created = $subscription->get_date_created();
-	if ( empty( $created ) || '0000-00-00 00:00:00' == $created ) {
+	if (empty($created) || '0000-00-00 00:00:00' == $created) {
 		echo "&mdash;";
 	} else {
-		echo date_i18n( /** @scrutinizer ignore-type */get_option( 'date_format' ), strtotime( $created ) );
+		echo date_i18n(/** @scrutinizer ignore-type */get_option('date_format'), strtotime($created));
 	}
 
 }
-add_action( 'getpaid_subscription_admin_display_start_date', 'getpaid_admin_subscription_metabox_display_start_date' );
+add_action('getpaid_subscription_admin_display_start_date', 'getpaid_admin_subscription_metabox_display_start_date');
 
 /**
  * Displays the subscription renewal date.
  *
  * @param WPInv_Subscription $subscription
  */
-function getpaid_admin_subscription_metabox_display_renews_on( $subscription ) {
+function getpaid_admin_subscription_metabox_display_renews_on($subscription) {
 
 	$expiration = $subscription->get_expiration();
-	if ( empty( $expiration ) || '0000-00-00 00:00:00' == $expiration ) {
+	if (empty($expiration) || '0000-00-00 00:00:00' == $expiration) {
 		echo "&mdash;";
 	} else {
-		echo date_i18n( /** @scrutinizer ignore-type */get_option( 'date_format' ), strtotime( $expiration ) );
+		echo date_i18n(/** @scrutinizer ignore-type */get_option('date_format'), strtotime($expiration));
 	}
 
 }
-add_action( 'getpaid_subscription_admin_display_renews_on', 'getpaid_admin_subscription_metabox_display_renews_on' );
+add_action('getpaid_subscription_admin_display_renews_on', 'getpaid_admin_subscription_metabox_display_renews_on');
 
 /**
  * Displays the subscription renewal count.
  *
  * @param WPInv_Subscription $subscription
  */
-function getpaid_admin_subscription_metabox_display_renewals( $subscription ) {
+function getpaid_admin_subscription_metabox_display_renewals($subscription) {
 	$max_bills = $subscription->get_bill_times();
-	echo $subscription->get_times_billed() . ' / ' . ( empty( $max_bills ) ? "&infin;" : $max_bills );
+	echo $subscription->get_times_billed() . ' / ' . (empty($max_bills) ? "&infin;" : $max_bills);
 }
-add_action( 'getpaid_subscription_admin_display_renewals', 'getpaid_admin_subscription_metabox_display_renewals' );
+add_action('getpaid_subscription_admin_display_renewals', 'getpaid_admin_subscription_metabox_display_renewals');
 
 /**
  * Displays the subscription item.
  *
  * @param WPInv_Subscription $subscription
  */
-function getpaid_admin_subscription_metabox_display_item( $subscription ) {
+function getpaid_admin_subscription_metabox_display_item($subscription) {
 
-	$item = get_post( $subscription->get_product_id() );
+	$item = get_post($subscription->get_product_id());
 
-	if ( ! empty( $item ) ) {
-		$link = get_edit_post_link( $item );
-		$link = esc_url( $link );
-		$name = esc_html( get_the_title( $item ) );
+	if (!empty($item)) {
+		$link = get_edit_post_link($item);
+		$link = esc_url($link);
+		$name = esc_html(get_the_title($item));
 		echo "<a href='$link'>$name</a>";
 	} else {
-		echo sprintf( __( 'Item #%s', 'invoicing' ), $subscription->get_product_id() );
+		echo sprintf(__('Item #%s', 'invoicing'), $subscription->get_product_id());
 	}
 
 }
-add_action( 'getpaid_subscription_admin_display_item', 'getpaid_admin_subscription_metabox_display_item' );
+add_action('getpaid_subscription_admin_display_item', 'getpaid_admin_subscription_metabox_display_item');
 
 /**
  * Displays the subscription gateway.
  *
  * @param WPInv_Subscription $subscription
  */
-function getpaid_admin_subscription_metabox_display_gateway( $subscription ) {
+function getpaid_admin_subscription_metabox_display_gateway($subscription) {
 
 	$gateway = $subscription->get_gateway();
 
-	if ( ! empty( $gateway ) ) {
-		echo sanitize_text_field( wpinv_get_gateway_admin_label( $gateway ) );
+	if (!empty($gateway)) {
+		echo sanitize_text_field(wpinv_get_gateway_admin_label($gateway));
 	} else {
 		echo "&mdash;";
 	}
 
 }
-add_action( 'getpaid_subscription_admin_display_gateway', 'getpaid_admin_subscription_metabox_display_gateway' );
+add_action('getpaid_subscription_admin_display_gateway', 'getpaid_admin_subscription_metabox_display_gateway');
 
 /**
  * Displays the subscription status.
  *
  * @param WPInv_Subscription $subscription
  */
-function getpaid_admin_subscription_metabox_display_status( $subscription ) {
+function getpaid_admin_subscription_metabox_display_status($subscription) {
 	echo $subscription->get_status_label_html();
 }
-add_action( 'getpaid_subscription_admin_display_status', 'getpaid_admin_subscription_metabox_display_status' );
+add_action('getpaid_subscription_admin_display_status', 'getpaid_admin_subscription_metabox_display_status');
 
 /**
  * Displays the subscription profile id.
  *
  * @param WPInv_Subscription $subscription
  */
-function getpaid_admin_subscription_metabox_display_profile_id( $subscription ) {
+function getpaid_admin_subscription_metabox_display_profile_id($subscription) {
 
 	$profile_id = $subscription->get_profile_id();
 
-	if ( ! empty( $profile_id ) ) {
-		$profile_id = sanitize_text_field( $profile_id );
-		echo apply_filters( 'getpaid_subscription_profile_id_display', $profile_id, $subscription );
+	if (!empty($profile_id)) {
+		$profile_id = sanitize_text_field($profile_id);
+		echo apply_filters('getpaid_subscription_profile_id_display', $profile_id, $subscription);
 	} else {
 		echo "&mdash;";
 	}
 
 }
-add_action( 'getpaid_subscription_admin_display_profile_id', 'getpaid_admin_subscription_metabox_display_profile_id' );
+add_action('getpaid_subscription_admin_display_profile_id', 'getpaid_admin_subscription_metabox_display_profile_id');
 
 /**
  * Displays the subscriptions update metabox.
  * 
  * @param WPInv_Subscription $subscription
  */
-function getpaid_admin_subscription_update_metabox( $subscription ) {
+function getpaid_admin_subscription_update_metabox($subscription) {
 
 	?>
 	<div class="mt-3">
@@ -400,10 +400,10 @@ 
 					'id'               => 'subscription_status_update_select',
 					'required'         => true,
 					'no_wrap'          => false,
-					'label'            => __( 'Subscription Status', 'invoicing' ),
-					'help_text'        => __( 'Updating the status will trigger related actions and hooks', 'invoicing' ),
+					'label'            => __('Subscription Status', 'invoicing'),
+					'help_text'        => __('Updating the status will trigger related actions and hooks', 'invoicing'),
 					'select2'          => true,
-					'value'            => $subscription->get_status( 'edit' ),
+					'value'            => $subscription->get_status('edit'),
 				)
 			);
 		?>
@@ -411,13 +411,13 @@ 
 		<div class="mt-2 px-3 py-2 bg-light border-top" style="margin: -12px;">
 	
 		<?php
-			submit_button( __( 'Update', 'invoicing' ), 'primary', 'submit', false );
+			submit_button(__('Update', 'invoicing'), 'primary', 'submit', false);
 
-			$url    = esc_url( wp_nonce_url( add_query_arg( 'getpaid-admin-action', 'subscription_manual_renew' ), 'getpaid-nonce', 'getpaid-nonce' ) );
-			$anchor = __( 'Renew Subscription', 'invoicing' );
-			$title  = esc_attr__( 'Are you sure you want to extend the subscription and generate a new invoice that will be automatically marked as paid?', 'invoicing' );
+			$url    = esc_url(wp_nonce_url(add_query_arg('getpaid-admin-action', 'subscription_manual_renew'), 'getpaid-nonce', 'getpaid-nonce'));
+			$anchor = __('Renew Subscription', 'invoicing');
+			$title  = esc_attr__('Are you sure you want to extend the subscription and generate a new invoice that will be automatically marked as paid?', 'invoicing');
 
-			if ( $subscription->is_active() ) {
+			if ($subscription->is_active()) {
 				echo "<a href='$url' class='float-right text-muted' onclick='return confirm(\"$title\")'>$anchor</a>";
 			}
 
@@ -429,17 +429,17 @@ 
  * 
  * @param WPInv_Subscription $subscription
  */
-function getpaid_admin_subscription_invoice_details_metabox( $subscription ) {
+function getpaid_admin_subscription_invoice_details_metabox($subscription) {
 
 	$columns = apply_filters(
 		'getpaid_subscription_related_invoices_columns',
 		array(
 
-			'invoice'      => __( 'Invoice', 'invoicing' ),
-			'relationship' => __( 'Relationship', 'invoicing' ),
-			'date'         => __( 'Date', 'invoicing' ),
-			'status'       => __( 'Status', 'invoicing' ),
-			'total'        => __( 'Total', 'invoicing' ),
+			'invoice'      => __('Invoice', 'invoicing'),
+			'relationship' => __('Relationship', 'invoicing'),
+			'date'         => __('Date', 'invoicing'),
+			'status'       => __('Status', 'invoicing'),
+			'total'        => __('Total', 'invoicing'),
 		)
 	);
 
@@ -447,8 +447,8 @@ 
 	$payments = $subscription->get_child_payments();
 	$parent   = $subscription->get_parent_invoice();
 
-	if ( $parent->get_id() ) {
-		$payments = array_merge( array( $parent ), $payments );
+	if ($parent->get_id()) {
+		$payments = array_merge(array($parent), $payments);
 	}
 	
 	?>
@@ -459,9 +459,9 @@ 
 				<thead>
 					<tr>
 						<?php
-							foreach ( $columns as $key => $label ) {
-								$key   = esc_attr( $key );
-								$label = sanitize_text_field( $label );
+							foreach ($columns as $key => $label) {
+								$key   = esc_attr($key);
+								$label = sanitize_text_field($label);
 
 								echo "<th class='subscription-invoice-field-$key bg-light p-2 text-left color-dark'>$label</th>";
 							}
@@ -473,36 +473,36 @@ 
 
 					<?php
 
-						foreach( $payments as $payment ) :
+						foreach ($payments as $payment) :
 
 							// Ensure that we have an invoice.
-							if ( ! is_a( $payment, 'WPInv_Invoice' ) ) {
-								$payment = new WPInv_Invoice( $payment );
+							if (!is_a($payment, 'WPInv_Invoice')) {
+								$payment = new WPInv_Invoice($payment);
 							}
 
 							// Abort if the invoice is invalid.
-							if ( ! $payment->get_id() ) {
+							if (!$payment->get_id()) {
 								continue;
 							}
 
 							echo '<tr>';
 
-								foreach ( array_keys( $columns ) as $key ) {
+								foreach (array_keys($columns) as $key) {
 									
 									echo '<td class="p-2 text-left">';
 
-										switch( $key ) {
+										switch ($key) {
 
 											case 'total':
-												echo '<strong>' . wpinv_price( wpinv_format_amount( wpinv_sanitize_amount( $payment->get_total ) ), $payment->get_currency() ) . '</strong>';
+												echo '<strong>' . wpinv_price(wpinv_format_amount(wpinv_sanitize_amount($payment->get_total)), $payment->get_currency()) . '</strong>';
 												break;
 
 											case 'relationship':
-												echo $payment->is_renewal() ? __( 'Renewal Invoice', 'invoicing' ) : __( 'Initial Invoice', 'invoicing' );
+												echo $payment->is_renewal() ? __('Renewal Invoice', 'invoicing') : __('Initial Invoice', 'invoicing');
 												break;
 
 											case 'date':
-												echo date_i18n( /** @scrutinizer ignore-type */get_option( 'date_format' ), strtotime( $payment->get_date_created() ) );
+												echo date_i18n(/** @scrutinizer ignore-type */get_option('date_format'), strtotime($payment->get_date_created()));
 												break;
 
 											case 'status':
@@ -510,8 +510,8 @@ 
 												break;
 
 											case 'invoice':
-												$link    = esc_url( get_edit_post_link( $payment->get_id() ) );
-												$invoice = sanitize_text_field( $payment->get_number() );
+												$link    = esc_url(get_edit_post_link($payment->get_id()));
+												$invoice = sanitize_text_field($payment->get_number());
 												echo "<a href='$link'>$invoice</a>";
 												break;
 										}
@@ -543,30 +543,30 @@ 
  */
 function wpinv_recurring_process_subscription_deletion() {
 
-	if( empty( $_POST['sub_id'] ) ) {
+	if (empty($_POST['sub_id'])) {
 		return;
 	}
 
-	if( empty( $_POST['wpinv_delete_subscription'] ) ) {
+	if (empty($_POST['wpinv_delete_subscription'])) {
 		return;
 	}
 
-	if( ! current_user_can( 'manage_invoicing') ) {
+	if (!current_user_can('manage_invoicing')) {
 		return;
 	}
 
-	if( ! wp_verify_nonce( $_POST['wpinv-recurring-update-nonce'], 'wpinv-recurring-update' ) ) {
-		wp_die( __( 'Nonce verification failed', 'invoicing' ), __( 'Error', 'invoicing' ), array( 'response' => 403 ) );
+	if (!wp_verify_nonce($_POST['wpinv-recurring-update-nonce'], 'wpinv-recurring-update')) {
+		wp_die(__('Nonce verification failed', 'invoicing'), __('Error', 'invoicing'), array('response' => 403));
 	}
 
-	$subscription = new WPInv_Subscription( absint( $_POST['sub_id'] ) );
+	$subscription = new WPInv_Subscription(absint($_POST['sub_id']));
 
-	delete_post_meta( $subscription->parent_payment_id, '_wpinv_subscription_payment' );
+	delete_post_meta($subscription->parent_payment_id, '_wpinv_subscription_payment');
 
 	$subscription->delete();
 
-	wp_redirect( admin_url( 'admin.php?page=wpinv-subscriptions&wpinv-message=deleted' ) );
+	wp_redirect(admin_url('admin.php?page=wpinv-subscriptions&wpinv-message=deleted'));
 	exit;
 
 }
-add_action( 'admin_init', 'wpinv_recurring_process_subscription_deletion', 2 );
+add_action('admin_init', 'wpinv_recurring_process_subscription_deletion', 2);

includes/gateways/class-getpaid-authorize-net-gateway.php

Spacing +227 added lines, -227 removed lines

@@ -4,7 +4,7 @@ 
  *
  */
 
-defined( 'ABSPATH' ) || exit;
+defined('ABSPATH') || exit;
 
 /**
  * Authorize.net Payment Gateway class.
@@ -24,7 +24,7 @@ 
 	 *
 	 * @var array
 	 */
-    protected $supports = array( 'subscription', 'sandbox', 'tokens' );
+    protected $supports = array('subscription', 'sandbox', 'tokens');
 
     /**
 	 * Payment method order.
@@ -52,7 +52,7 @@ 
 	 *
 	 * @var array
 	 */
-	public $currencies = array( 'USD', 'CAD', 'GBP', 'DKK', 'NOK', 'PLN', 'SEK', 'AUD', 'EUR', 'NZD' );
+	public $currencies = array('USD', 'CAD', 'GBP', 'DKK', 'NOK', 'PLN', 'SEK', 'AUD', 'EUR', 'NZD');
 
     /**
 	 * URL to view a transaction.
@@ -66,12 +66,12 @@ 
 	 */
 	public function __construct() {
 
-        $this->title                = __( 'Credit Card / Debit Card', 'invoicing' );
-        $this->method_title         = __( 'Authorize.Net', 'invoicing' );
-        $this->notify_url           = wpinv_get_ipn_url( $this->id );
+        $this->title                = __('Credit Card / Debit Card', 'invoicing');
+        $this->method_title         = __('Authorize.Net', 'invoicing');
+        $this->notify_url           = wpinv_get_ipn_url($this->id);
 
-        add_filter( 'wpinv_renew_authorizenet_subscription_profile', array( $this, 'renew_subscription' ) );
-        add_filter( 'wpinv_gateway_description', array( $this, 'sandbox_notice' ), 10, 2 );
+        add_filter('wpinv_renew_authorizenet_subscription_profile', array($this, 'renew_subscription'));
+        add_filter('wpinv_gateway_description', array($this, 'sandbox_notice'), 10, 2);
         parent::__construct();
     }
 
@@ -81,13 +81,13 @@ 
 	 * @param int $invoice_id 0 or invoice id.
 	 * @param GetPaid_Payment_Form $form Current payment form.
 	 */
-    public function payment_fields( $invoice_id, $form ) {
+    public function payment_fields($invoice_id, $form) {
 
         // Let the user select a payment method.
         echo $this->saved_payment_methods();
 
         // Show the credit card entry form.
-        echo $this->new_payment_method_entry( $this->get_cc_form( true ) );
+        echo $this->new_payment_method_entry($this->get_cc_form(true));
     }
 
     /**
@@ -100,64 +100,64 @@ 
      * @link https://developer.authorize.net/api/reference/index.html#customer-profiles-create-customer-profile
 	 * @return string|WP_Error Payment profile id.
 	 */
-	public function create_customer_profile( $invoice, $submission_data, $save = true ) {
+	public function create_customer_profile($invoice, $submission_data, $save = true) {
 
         // Remove non-digits from the number
-        $submission_data['authorizenet']['cc_number'] = preg_replace('/\D/', '', $submission_data['authorizenet']['cc_number'] );
+        $submission_data['authorizenet']['cc_number'] = preg_replace('/\D/', '', $submission_data['authorizenet']['cc_number']);
 
         // Generate args.
         $args = array(
             'createCustomerProfileRequest' => array(
                 'merchantAuthentication'   => $this->get_auth_params(),
                 'profile'                  => array(
-                    'merchantCustomerId'   => getpaid_limit_length( $invoice->get_user_id(), 20 ),
-                    'description'          => getpaid_limit_length( $invoice->get_full_name(), 255 ),
-                    'email'                => getpaid_limit_length( $invoice->get_email(), 255 ),
+                    'merchantCustomerId'   => getpaid_limit_length($invoice->get_user_id(), 20),
+                    'description'          => getpaid_limit_length($invoice->get_full_name(), 255),
+                    'email'                => getpaid_limit_length($invoice->get_email(), 255),
                     'paymentProfiles'      => array(
                         'customerType'     => 'individual',
 
                         // Billing information.
                         'billTo'           => array(
-                            'firstName'    => getpaid_limit_length( $invoice->get_first_name(), 50 ),
-                            'lastName'     => getpaid_limit_length( $invoice->get_last_name(), 50 ),
-                            'address'      => getpaid_limit_length( $invoice->get_last_name(), 60 ),
-                            'city'         => getpaid_limit_length( $invoice->get_city(), 40 ),
-                            'state'        => getpaid_limit_length( $invoice->get_state(), 40 ),
-                            'zip'          => getpaid_limit_length( $invoice->get_zip(), 20 ),
-                            'country'      => getpaid_limit_length( $invoice->get_country(), 60 ),
+                            'firstName'    => getpaid_limit_length($invoice->get_first_name(), 50),
+                            'lastName'     => getpaid_limit_length($invoice->get_last_name(), 50),
+                            'address'      => getpaid_limit_length($invoice->get_last_name(), 60),
+                            'city'         => getpaid_limit_length($invoice->get_city(), 40),
+                            'state'        => getpaid_limit_length($invoice->get_state(), 40),
+                            'zip'          => getpaid_limit_length($invoice->get_zip(), 20),
+                            'country'      => getpaid_limit_length($invoice->get_country(), 60),
                         ),
 
                         // Payment information.
-                        'payment'          => $this->get_payment_information( $submission_data['authorizenet'] ),
+                        'payment'          => $this->get_payment_information($submission_data['authorizenet']),
                     )
                 ),
-                'validationMode'           => $this->is_sandbox( $invoice ) ? 'testMode' : 'liveMode', 
+                'validationMode'           => $this->is_sandbox($invoice) ? 'testMode' : 'liveMode', 
             )
         );
 
-        $response = $this->post( apply_filters( 'getpaid_authorizenet_customer_profile_args', $args, $invoice ), $invoice );
+        $response = $this->post(apply_filters('getpaid_authorizenet_customer_profile_args', $args, $invoice), $invoice);
 
-        if ( is_wp_error( $response ) ) {
+        if (is_wp_error($response)) {
             return $response;
         }
 
-        update_user_meta( $invoice->get_user_id(), $this->get_customer_profile_meta_name( $invoice ), $response->customerProfileId );
+        update_user_meta($invoice->get_user_id(), $this->get_customer_profile_meta_name($invoice), $response->customerProfileId);
 
         // Save the payment token.
-        if ( $save ) {
+        if ($save) {
             $this->save_token(
                 array(
                     'id'      => $response->customerPaymentProfileIdList[0],
-                    'name'    => $this->get_card_name( $submission_data['authorizenet']['cc_number'] ) . '····' . substr( $submission_data['authorizenet']['cc_number'], -4 ),
+                    'name'    => $this->get_card_name($submission_data['authorizenet']['cc_number']) . '····' . substr($submission_data['authorizenet']['cc_number'], -4),
                     'default' => true,
-                    'type'    => $this->is_sandbox( $invoice ) ? 'sandbox' : 'live',
+                    'type'    => $this->is_sandbox($invoice) ? 'sandbox' : 'live',
                 )
             );
         }
 
         // Add a note about the validation response.
         $invoice->add_note(
-            sprintf( __( 'Created Authorize.NET customer profile: %s', 'invoicing' ), $response->validationDirectResponseList[0] ),
+            sprintf(__('Created Authorize.NET customer profile: %s', 'invoicing'), $response->validationDirectResponseList[0]),
             false,
             false,
             true
@@ -174,7 +174,7 @@ 
 	 * @return string|WP_Error Profile id.
      * @link https://developer.authorize.net/api/reference/index.html#customer-profiles-get-customer-profile
 	 */
-	public function get_customer_profile( $profile_id ) {
+	public function get_customer_profile($profile_id) {
 
         // Generate args.
         $args = array(
@@ -184,7 +184,7 @@ 
             )
         );
 
-        return $this->post( $args, false );
+        return $this->post($args, false);
 
     }
 
@@ -199,10 +199,10 @@ 
      * @link https://developer.authorize.net/api/reference/index.html#customer-profiles-create-customer-profile
 	 * @return string|WP_Error Profile id.
 	 */
-	public function create_customer_payment_profile( $customer_profile, $invoice, $submission_data, $save ) {
+	public function create_customer_payment_profile($customer_profile, $invoice, $submission_data, $save) {
 
         // Remove non-digits from the number
-        $submission_data['authorizenet']['cc_number'] = preg_replace('/\D/', '', $submission_data['authorizenet']['cc_number'] );
+        $submission_data['authorizenet']['cc_number'] = preg_replace('/\D/', '', $submission_data['authorizenet']['cc_number']);
 
         // Generate args.
         $args = array(
@@ -213,34 +213,34 @@ 
 
                     // Billing information.
                     'billTo'           => array(
-                        'firstName'    => getpaid_limit_length( $invoice->get_first_name(), 50 ),
-                        'lastName'     => getpaid_limit_length( $invoice->get_last_name(), 50 ),
-                        'address'      => getpaid_limit_length( $invoice->get_last_name(), 60 ),
-                        'city'         => getpaid_limit_length( $invoice->get_city(), 40 ),
-                        'state'        => getpaid_limit_length( $invoice->get_state(), 40 ),
-                        'zip'          => getpaid_limit_length( $invoice->get_zip(), 20 ),
-                        'country'      => getpaid_limit_length( $invoice->get_country(), 60 ),
+                        'firstName'    => getpaid_limit_length($invoice->get_first_name(), 50),
+                        'lastName'     => getpaid_limit_length($invoice->get_last_name(), 50),
+                        'address'      => getpaid_limit_length($invoice->get_last_name(), 60),
+                        'city'         => getpaid_limit_length($invoice->get_city(), 40),
+                        'state'        => getpaid_limit_length($invoice->get_state(), 40),
+                        'zip'          => getpaid_limit_length($invoice->get_zip(), 20),
+                        'country'      => getpaid_limit_length($invoice->get_country(), 60),
                     ),
 
                     // Payment information.
-                    'payment'          => $this->get_payment_information( $submission_data['authorizenet'] )
+                    'payment'          => $this->get_payment_information($submission_data['authorizenet'])
                 ),
-                'validationMode'       => $this->is_sandbox( $invoice ) ? 'testMode' : 'liveMode', 
+                'validationMode'       => $this->is_sandbox($invoice) ? 'testMode' : 'liveMode', 
             )
         );
 
-        $response = $this->post( apply_filters( 'getpaid_authorizenet_create_customer_payment_profile_args', $args, $invoice ), $invoice );
+        $response = $this->post(apply_filters('getpaid_authorizenet_create_customer_payment_profile_args', $args, $invoice), $invoice);
 
-        if ( is_wp_error( $response ) ) {
+        if (is_wp_error($response)) {
             return $response;
         }
 
         // Save the payment token.
-        if ( $save ) {
+        if ($save) {
             $this->save_token(
                 array(
                     'id'      => $response->customerPaymentProfileId,
-                    'name'    => $this->get_card_name( $submission_data['authorizenet']['cc_number'] ) . ' ···· ' . substr( $submission_data['authorizenet']['cc_number'], -4 ),
+                    'name'    => $this->get_card_name($submission_data['authorizenet']['cc_number']) . ' ···· ' . substr($submission_data['authorizenet']['cc_number'], -4),
                     'default' => true
                 )
             );
@@ -248,7 +248,7 @@ 
 
         // Add a note about the validation response.
         $invoice->add_note(
-            sprintf( __( 'Saved Authorize.NET payment profile: %s', 'invoicing' ), $response->validationDirectResponse ),
+            sprintf(__('Saved Authorize.NET payment profile: %s', 'invoicing'), $response->validationDirectResponse),
             false,
             false,
             true
@@ -267,7 +267,7 @@ 
 	 * @return string|WP_Error Profile id.
      * @link https://developer.authorize.net/api/reference/index.html#customer-profiles-get-customer-payment-profile
 	 */
-	public function get_customer_payment_profile( $customer_profile_id, $payment_profile_id ) {
+	public function get_customer_payment_profile($customer_profile_id, $payment_profile_id) {
 
         // Generate args.
         $args = array(
@@ -278,7 +278,7 @@ 
             )
         );
 
-        return $this->post( $args, false );
+        return $this->post($args, false);
 
     }
 
@@ -291,7 +291,7 @@ 
      * @link https://developer.authorize.net/api/reference/index.html#payment-transactions-charge-a-customer-profile
 	 * @return WP_Error|object
 	 */
-	public function charge_customer_payment_profile( $customer_profile_id, $payment_profile_id, $invoice ) {
+	public function charge_customer_payment_profile($customer_profile_id, $payment_profile_id, $invoice) {
 
         // Generate args.
         $args = array(
@@ -311,24 +311,24 @@ 
                         )
                     ),
                     'order'                    => array(
-                        'invoiceNumber'        => getpaid_limit_length( $invoice->get_number(), 20 ),
+                        'invoiceNumber'        => getpaid_limit_length($invoice->get_number(), 20),
                     ),
-                    'lineItems'                => array( 'lineItem' => $this->get_line_items( $invoice ) ),
+                    'lineItems'                => array('lineItem' => $this->get_line_items($invoice)),
                     'tax'                      => array(
                         'amount'               => $invoice->get_total_tax(),
                         'name'                 => getpaid_tax()->get_vat_name(),
                     ),
-                    'poNumber'                 => getpaid_limit_length( $invoice->get_number(), 25 ),
+                    'poNumber'                 => getpaid_limit_length($invoice->get_number(), 25),
                     'customer'                 => array(
-                        'id'                   => getpaid_limit_length( $invoice->get_user_id(), 25 ),
-                        'email'                => getpaid_limit_length( $invoice->get_email(), 25 ),
+                        'id'                   => getpaid_limit_length($invoice->get_user_id(), 25),
+                        'email'                => getpaid_limit_length($invoice->get_email(), 25),
                     ),
                     'customerIP'               => $invoice->get_ip(),
                 )
             )
         );
-log_noptin_message( $args );
-        return $this->post( apply_filters( 'getpaid_authorizenet_charge_customer_payment_profile_args', $args, $invoice ), $invoice );
+log_noptin_message($args);
+        return $this->post(apply_filters('getpaid_authorizenet_charge_customer_payment_profile_args', $args, $invoice), $invoice);
 
     }
 
@@ -338,43 +338,43 @@ 
      * @param stdClass $result Api response.
 	 * @param WPInv_Invoice $invoice Invoice.
 	 */
-	public function process_charge_response( $result, $invoice ) {
+	public function process_charge_response($result, $invoice) {
 
         wpinv_clear_errors();
 
-        switch ( (int) $result->transactionResponse->responseCode ) {
+        switch ((int) $result->transactionResponse->responseCode) {
 
             case 1:
             case 4:
 
-                if ( ! empty( $result->transactionResponse->transId ) ) {
-                    $invoice->set_transaction_id( $result->transactionResponse->transId );
+                if (!empty($result->transactionResponse->transId)) {
+                    $invoice->set_transaction_id($result->transactionResponse->transId);
                 }
 
-                if ( 1 == (int) $result->transactionResponse->responseCode ) {
+                if (1 == (int) $result->transactionResponse->responseCode) {
                     $invoice->mark_paid();
                 } else {
-                    $invoice->set_status( 'wpi-onhold' );
+                    $invoice->set_status('wpi-onhold');
                     $invoice->add_note( 
                         sprintf(
-                            __( 'Held for review: %s', 'invoicing' ),
+                            __('Held for review: %s', 'invoicing'),
                             $result->transactionResponse->messages->message[0]->description
                         )
                     );
                 }
 
-                $invoice->add_note( sprintf( __( 'Authentication code: %s (%s).', 'invoicing' ), $result->transactionResponse->authCode, $result->transactionResponse->accountNumber ), false, false, true );
+                $invoice->add_note(sprintf(__('Authentication code: %s (%s).', 'invoicing'), $result->transactionResponse->authCode, $result->transactionResponse->accountNumber), false, false, true);
                 $invoice->save();
 
                 return;
 
             case 2:
             case 3:
-                wpinv_set_error( 'card_declined', __( 'Credit card declined.', 'invoicing' ) );
+                wpinv_set_error('card_declined', __('Credit card declined.', 'invoicing'));
 
-                if ( ! empty( $result->transactionResponse->errors ) ) {
+                if (!empty($result->transactionResponse->errors)) {
                     $errors = (object) $result->transactionResponse->errors;
-                    wpinv_set_error( $errors->error[0]->errorCode, $errors->error[0]->errorText );
+                    wpinv_set_error($errors->error[0]->errorCode, $errors->error[0]->errorText);
                 }
 
                 return;
@@ -390,10 +390,10 @@ 
 	 * @param array $card Card details.
 	 * @return array
 	 */
-	public function get_payment_information( $card ) {
+	public function get_payment_information($card) {
         return array(
 
-            'creditCard'         => array (
+            'creditCard'         => array(
                 'cardNumber'     => $card['cc_number'],
                 'expirationDate' => $card['cc_expire_year'] . '-' . $card['cc_expire_month'],
                 'cardCode'       => $card['cc_cvv2'],
@@ -409,30 +409,30 @@ 
 	 * @param string $card_number Card number.
 	 * @return string
 	 */
-	public function get_card_name( $card_number ) {
+	public function get_card_name($card_number) {
 
-        switch( $card_number ) {
+        switch ($card_number) {
 
-            case( preg_match ( '/^4/', $card_number ) >= 1 ):
-                return __( 'Visa', 'invoicing' );
+            case(preg_match('/^4/', $card_number) >= 1):
+                return __('Visa', 'invoicing');
 
-            case( preg_match ( '/^5[1-5]/', $card_number ) >= 1 ):
-                return __( 'Mastercard', 'invoicing' );
+            case(preg_match('/^5[1-5]/', $card_number) >= 1):
+                return __('Mastercard', 'invoicing');
 
-            case( preg_match ( '/^3[47]/', $card_number ) >= 1 ):
-                return __( 'Amex', 'invoicing' );
+            case(preg_match('/^3[47]/', $card_number) >= 1):
+                return __('Amex', 'invoicing');
 
-            case( preg_match ( '/^3(?:0[0-5]|[68])/', $card_number ) >= 1 ):
-                return __( 'Diners Club', 'invoicing' );
+            case(preg_match('/^3(?:0[0-5]|[68])/', $card_number) >= 1):
+                return __('Diners Club', 'invoicing');
 
-            case( preg_match ( '/^6(?:011|5)/', $card_number ) >= 1 ):
-                return __( 'Discover', 'invoicing' );
+            case(preg_match('/^6(?:011|5)/', $card_number) >= 1):
+                return __('Discover', 'invoicing');
 
-            case( preg_match ( '/^(?:2131|1800|35\d{3})/', $card_number ) >= 1 ):
-                return __( 'JCB', 'invoicing' );
+            case(preg_match('/^(?:2131|1800|35\d{3})/', $card_number) >= 1):
+                return __('JCB', 'invoicing');
 
             default:
-            return __( 'Card', 'invoicing' );
+            return __('Card', 'invoicing');
                 break;
         }
 
@@ -445,8 +445,8 @@ 
 	 * @param WPInv_Invoice $invoice Invoice.
 	 * @return string
 	 */
-	public function get_customer_profile_meta_name( $invoice ) {
-        return $this->is_sandbox( $invoice ) ? 'getpaid_authorizenet_sandbox_customer_profile_id' : 'getpaid_authorizenet_customer_profile_id';
+	public function get_customer_profile_meta_name($invoice) {
+        return $this->is_sandbox($invoice) ? 'getpaid_authorizenet_sandbox_customer_profile_id' : 'getpaid_authorizenet_customer_profile_id';
     }
 
     /**
@@ -456,8 +456,8 @@ 
 	 * @param WPInv_Invoice $invoice Invoice.
 	 * @return string
 	 */
-	public function get_api_url( $invoice ) {
-        return $this->is_sandbox( $invoice ) ? 'https://apitest.authorize.net/xml/v1/request.api' : 'https://api.authorize.net/xml/v1/request.api';
+	public function get_api_url($invoice) {
+        return $this->is_sandbox($invoice) ? 'https://apitest.authorize.net/xml/v1/request.api' : 'https://api.authorize.net/xml/v1/request.api';
     }
 
     /**
@@ -469,8 +469,8 @@ 
 	public function get_auth_params() {
 
         return array(
-            'name'           => $this->get_option( 'login_id' ),
-            'transactionKey' => $this->get_option( 'transaction_key' ),
+            'name'           => $this->get_option('login_id'),
+            'transactionKey' => $this->get_option('transaction_key'),
         );
 
     }
@@ -483,34 +483,34 @@ 
      * @param WPInv_Invoice $invoice
 	 * @return WP_Error|string The payment profile id
 	 */
-	public function validate_submission_data( $submission_data, $invoice ) {
+	public function validate_submission_data($submission_data, $invoice) {
 
         // Validate authentication details.
         $auth = $this->get_auth_params();
 
-        if ( empty( $auth['name'] ) || empty( $auth['transactionKey'] ) ) {
-            return new WP_Error( 'invalid_settings', __( 'This gateway has not been set up.', 'invoicing') );
+        if (empty($auth['name']) || empty($auth['transactionKey'])) {
+            return new WP_Error('invalid_settings', __('This gateway has not been set up.', 'invoicing'));
         }
 
         // Validate the payment method.
-        if ( empty( $submission_data['getpaid-authorizenet-payment-method'] ) ) {
-            return new WP_Error( 'invalid_payment_method', __( 'Please select a different payment method or add a new card.', 'invoicing') );
+        if (empty($submission_data['getpaid-authorizenet-payment-method'])) {
+            return new WP_Error('invalid_payment_method', __('Please select a different payment method or add a new card.', 'invoicing'));
         }
 
         // Are we adding a new payment method?
-        if ( 'new' != $submission_data['getpaid-authorizenet-payment-method'] ) {
+        if ('new' != $submission_data['getpaid-authorizenet-payment-method']) {
             return $submission_data['getpaid-authorizenet-payment-method'];
         }
 
         // Retrieve the customer profile id.
-        $profile_id = get_user_meta( $invoice->get_user_id(), $this->get_customer_profile_meta_name( $invoice ), true );
+        $profile_id = get_user_meta($invoice->get_user_id(), $this->get_customer_profile_meta_name($invoice), true);
 
         // Create payment method.
-        if ( empty( $profile_id ) ) {
-            return $this->create_customer_profile( $invoice, $submission_data, ! empty( $submission_data['getpaid-authorizenet-new-payment-method'] ) );
+        if (empty($profile_id)) {
+            return $this->create_customer_profile($invoice, $submission_data, !empty($submission_data['getpaid-authorizenet-new-payment-method']));
         }
 
-        return $this->create_customer_payment_profile( $profile_id, $invoice, $submission_data, ! empty( $submission_data['getpaid-authorizenet-new-payment-method'] ) );
+        return $this->create_customer_payment_profile($profile_id, $invoice, $submission_data, !empty($submission_data['getpaid-authorizenet-new-payment-method']));
 
     }
 
@@ -521,15 +521,15 @@ 
 	 * @param WPInv_Invoice $invoice Invoice.
 	 * @return array
 	 */
-	public function get_line_items( $invoice ) {
+	public function get_line_items($invoice) {
         $items = array();
 
-        foreach ( $invoice->get_items() as $item ) {
+        foreach ($invoice->get_items() as $item) {
 
             $items[] = array(
-                'itemId'      => getpaid_limit_length( $item->get_id(), 31 ),
-                'name'        => getpaid_limit_length( $item->get_raw_name(), 31 ),
-                'description' => getpaid_limit_length( $item->get_description(), 255 ),
+                'itemId'      => getpaid_limit_length($item->get_id(), 31),
+                'name'        => getpaid_limit_length($item->get_raw_name(), 31),
+                'description' => getpaid_limit_length($item->get_description(), 255),
                 'quantity'    => (int) $invoice->get_template() == 'amount' ? 1 : $item->get_quantity(),
                 'unitPrice'   => (float) $item->get_price(),
                 'taxable'     => wpinv_use_taxes() && $invoice->is_taxable() && 'tax-exempt' != $item->get_vat_rule(),
@@ -548,40 +548,40 @@ 
      * @param WPInv_Invoice $invoice Invoice.
 	 * @return stdClass|WP_Error
 	 */
-    public function post( $post, $invoice ){
+    public function post($post, $invoice) {
 
-        $url      = $this->get_api_url( $invoice );
+        $url      = $this->get_api_url($invoice);
         $response = wp_remote_post(
             $url,
             array(
                 'headers'          => array(
                     'Content-Type' => 'application/json; charset=utf-8'
                 ),
-                'body'             => json_encode( $post ),
+                'body'             => json_encode($post),
                 'method'           => 'POST'
             )
         );
 
-        if ( is_wp_error( $response ) ) {
+        if (is_wp_error($response)) {
             return $response;
         }
 
-        $response = wp_unslash( wp_remote_retrieve_body( $response ) );
+        $response = wp_unslash(wp_remote_retrieve_body($response));
         $response = preg_replace('/\xEF\xBB\xBF/', '', $response); // https://community.developer.authorize.net/t5/Integration-and-Testing/JSON-issues/td-p/48851
-        $response = json_decode( $response );
+        $response = json_decode($response);
 
-        if ( empty( $response ) ) {
-            return new WP_Error( 'invalid_reponse', __( 'Invalid response', 'invoicing' ) );
+        if (empty($response)) {
+            return new WP_Error('invalid_reponse', __('Invalid response', 'invoicing'));
         }
 
-        if ( $response->messages->resultCode == 'Error' ) {
+        if ($response->messages->resultCode == 'Error') {
 
-            if ( ! empty( $response->transactionResponse ) && ! empty( $response->transactionResponse->errors ) ) {
+            if (!empty($response->transactionResponse) && !empty($response->transactionResponse->errors)) {
                 $error = $response->transactionResponse->errors[0];
-                return new WP_Error( $error->errorCode, $error->errorText );
+                return new WP_Error($error->errorCode, $error->errorText);
             }
 
-            return new WP_Error( $response->messages->message[0]->code, $response->messages->message[0]->text );
+            return new WP_Error($response->messages->message[0]->code, $response->messages->message[0]->text);
         }
 
         return $response;
@@ -597,49 +597,49 @@ 
 	 * @param GetPaid_Payment_Form_Submission $submission Checkout submission.
 	 * @return array
 	 */
-	public function process_payment( $invoice, $submission_data, $submission ) {
+	public function process_payment($invoice, $submission_data, $submission) {
 
         // Validate the submitted data.
-        $payment_profile_id = $this->validate_submission_data( $submission_data, $invoice );
+        $payment_profile_id = $this->validate_submission_data($submission_data, $invoice);
 
         // Do we have an error?
-        if ( is_wp_error( $payment_profile_id ) ) {
-            wpinv_set_error( $payment_profile_id->get_error_code(), $payment_profile_id->get_error_message() );
+        if (is_wp_error($payment_profile_id)) {
+            wpinv_set_error($payment_profile_id->get_error_code(), $payment_profile_id->get_error_message());
             wpinv_send_back_to_checkout();
         }
 
         // Save the payment method to the order.
-        update_post_meta( $invoice->get_id(), 'getpaid_authorizenet_profile_id', $payment_profile_id );
+        update_post_meta($invoice->get_id(), 'getpaid_authorizenet_profile_id', $payment_profile_id);
 
         // Check if this is a subscription or not.
-        if ( $invoice->is_recurring() && $subscription = wpinv_get_subscription( $invoice ) ) {
-            $this->process_subscription( $invoice, $subscription );
+        if ($invoice->is_recurring() && $subscription = wpinv_get_subscription($invoice)) {
+            $this->process_subscription($invoice, $subscription);
         }
 
         // If it is free, send to the success page.
-        if ( ! $invoice->needs_payment() ) {
+        if (!$invoice->needs_payment()) {
             $invoice->mark_paid();
-            wpinv_send_to_success_page( array( 'invoice_key' => $invoice->get_key() ) );
+            wpinv_send_to_success_page(array('invoice_key' => $invoice->get_key()));
         }
 
         // Charge the payment profile.
-        $customer_profile = get_user_meta( $invoice->get_user_id(), $this->get_customer_profile_meta_name( $invoice ), true );
-        $result           = $this->charge_customer_payment_profile( $customer_profile, $payment_profile_id, $invoice );
+        $customer_profile = get_user_meta($invoice->get_user_id(), $this->get_customer_profile_meta_name($invoice), true);
+        $result           = $this->charge_customer_payment_profile($customer_profile, $payment_profile_id, $invoice);
 
         // Do we have an error?
-        if ( is_wp_error( $result ) ) {
-            wpinv_set_error( $result->get_error_code(), $result->get_error_message() );
+        if (is_wp_error($result)) {
+            wpinv_set_error($result->get_error_code(), $result->get_error_message());
             wpinv_send_back_to_checkout();
         }
 
         // Process the response.
-        $this->process_charge_response( $result, $invoice );
+        $this->process_charge_response($result, $invoice);
 
-        if ( wpinv_get_errors() ) {
+        if (wpinv_get_errors()) {
             wpinv_send_back_to_checkout();
         }
 
-        wpinv_send_to_success_page( array( 'invoice_key' => $invoice->get_key() ) );
+        wpinv_send_to_success_page(array('invoice_key' => $invoice->get_key()));
 
         exit;
 
@@ -651,40 +651,40 @@ 
      * @param WPInv_Invoice $invoice Invoice.
      * @param WPInv_Subscription $subscription Subscription.
 	 */
-	public function process_subscription( $invoice, $subscription ) {
+	public function process_subscription($invoice, $subscription) {
 
         // Check if there is an initial amount to charge.
-        if ( (float) $invoice->get_total() > 0 ) {
+        if ((float) $invoice->get_total() > 0) {
 
             // Retrieve the payment method.
-            $payment_profile_id = get_post_meta( $invoice->get_id(), 'getpaid_authorizenet_profile_id', true );
-            $customer_profile   = get_user_meta( $invoice->get_user_id(), $this->get_customer_profile_meta_name( $invoice ), true );
-            $result             = $this->charge_customer_payment_profile( $customer_profile, $payment_profile_id, $invoice );
+            $payment_profile_id = get_post_meta($invoice->get_id(), 'getpaid_authorizenet_profile_id', true);
+            $customer_profile   = get_user_meta($invoice->get_user_id(), $this->get_customer_profile_meta_name($invoice), true);
+            $result             = $this->charge_customer_payment_profile($customer_profile, $payment_profile_id, $invoice);
 
             // Do we have an error?
-            if ( is_wp_error( $result ) ) {
-                wpinv_set_error( $result->get_error_code(), $result->get_error_message() );
+            if (is_wp_error($result)) {
+                wpinv_set_error($result->get_error_code(), $result->get_error_message());
                 wpinv_send_back_to_checkout();
             }
 
             // Process the response.
-            $this->process_charge_response( $result, $invoice );
+            $this->process_charge_response($result, $invoice);
 
-            if ( wpinv_get_errors() ) {
+            if (wpinv_get_errors()) {
                 wpinv_send_back_to_checkout();
             }
 
         }
 
         // Recalculate the new subscription expiry.
-        $duration = strtotime( $subscription->expiration ) - strtotime( $subscription->created );
-        $expiry   = date( 'Y-m-d H:i:s', ( current_time( 'timestamp' ) + $duration ) );
+        $duration = strtotime($subscription->expiration) - strtotime($subscription->created);
+        $expiry   = date('Y-m-d H:i:s', (current_time('timestamp') + $duration));
 
         // Schedule an action to run when the subscription expires.
         $action_id = as_schedule_single_action(
-            strtotime( $expiry ),
+            strtotime($expiry),
             'wpinv_renew_authorizenet_subscription_profile',
-            array( $invoice->get_id() ),
+            array($invoice->get_id()),
             'invoicing'
         );
 
@@ -693,12 +693,12 @@ 
             array(
                 'profile_id' => $action_id,
                 'status'     => 'trialling' == $subscription->status ? 'trialling' : 'active',
-                'created'    => current_time( 'mysql' ),
+                'created'    => current_time('mysql'),
                 'expiration' => $expiry,
             )
         );
 
-        wpinv_send_to_success_page( array( 'invoice_key' => $invoice->get_key() ) );
+        wpinv_send_to_success_page(array('invoice_key' => $invoice->get_key()));
 
     }
 
@@ -707,45 +707,45 @@ 
 	 *
      * @param int $invoice Invoice id.
 	 */
-	public function renew_subscription( $invoice ) {
+	public function renew_subscription($invoice) {
 
         // Retrieve the subscription.
-        $subscription = wpinv_get_subscription( $invoice );
-        if ( empty( $subscription ) ) {
+        $subscription = wpinv_get_subscription($invoice);
+        if (empty($subscription)) {
             return;
         }
 
         // Abort if it is canceled or complete.
-        if ( $subscription->status == 'completed' || $subscription->status == 'cancelled' ) {
+        if ($subscription->status == 'completed' || $subscription->status == 'cancelled') {
             return;
         }
 
         // Retrieve the invoice.
-        $invoice = new WPInv_Invoice( $invoice );
+        $invoice = new WPInv_Invoice($invoice);
 
         // If we have not maxed out on bill times...
         $times_billed = $subscription->get_times_billed();
         $max_bills    = $subscription->bill_times;
 
-        if ( empty( $max_bills ) || $max_bills > $times_billed ) {
+        if (empty($max_bills) || $max_bills > $times_billed) {
 
             $new_invoice = $subscription->create_payment();
 
-            if ( empty( $new_invoice ) ) {
-                $invoice->add_note( __( 'Error generating a renewal invoice.', 'invoicing' ), false, false, false );
+            if (empty($new_invoice)) {
+                $invoice->add_note(__('Error generating a renewal invoice.', 'invoicing'), false, false, false);
                 $subscription->failing();
                 return;
             }
 
             // retrieve the payment method.
-            $payment_profile_id = get_post_meta( $invoice->get_id(), 'getpaid_authorizenet_profile_id', true );
-            $customer_profile   = get_user_meta( $invoice->get_user_id(), $this->get_customer_profile_meta_name( $invoice ), true );
-            $result             = $this->charge_customer_payment_profile( $customer_profile, $payment_profile_id, $new_invoice );
+            $payment_profile_id = get_post_meta($invoice->get_id(), 'getpaid_authorizenet_profile_id', true);
+            $customer_profile   = get_user_meta($invoice->get_user_id(), $this->get_customer_profile_meta_name($invoice), true);
+            $result             = $this->charge_customer_payment_profile($customer_profile, $payment_profile_id, $new_invoice);
 
             // Do we have an error?
-            if ( is_wp_error( $result ) ) {
+            if (is_wp_error($result)) {
                 $invoice->add_note(
-                    sprintf( __( 'Error renewing subscription : ( %s ).', 'invoicing' ), $result->get_error_message() ),
+                    sprintf(__('Error renewing subscription : ( %s ).', 'invoicing'), $result->get_error_message()),
                     true,
                     false,
                     true
@@ -755,12 +755,12 @@ 
             }
 
             // Process the response.
-            $this->process_charge_response( $result, $new_invoice );
+            $this->process_charge_response($result, $new_invoice);
 
-            if ( wpinv_get_errors() ) {
+            if (wpinv_get_errors()) {
 
                 $invoice->add_note(
-                    sprintf( __( 'Error renewing subscription : ( %s ).', 'invoicing' ), getpaid_get_errors_html() ),
+                    sprintf(__('Error renewing subscription : ( %s ).', 'invoicing'), getpaid_get_errors_html()),
                     true,
                     false,
                     true
@@ -782,17 +782,17 @@ 
             // Renew/Complete the subscription.
             $subscription->renew();
 
-            if ( 'completed' != $subscription->status ) {
+            if ('completed' != $subscription->status) {
 
                 // Schedule an action to run when the subscription expires.
                 $action_id = as_schedule_single_action(
-                    strtotime( $subscription->expiration ),
+                    strtotime($subscription->expiration),
                     'wpinv_renew_authorizenet_subscription_profile',
-                    array( $invoice->get_id() ),
+                    array($invoice->get_id()),
                     'invoicing'
                 );
     
-                $subscription->update( array( 'profile_id' => $action_id, ) );
+                $subscription->update(array('profile_id' => $action_id,));
     
             }
 
@@ -806,9 +806,9 @@ 
 	 * @param WPInv_Subscription $subscription Subscription.
      * @param WPInv_Invoice $invoice Invoice.
 	 */
-	public function cancel_subscription( $subscription, $invoice ) {
+	public function cancel_subscription($subscription, $invoice) {
 
-        if ( as_unschedule_action( 'wpinv_renew_authorizenet_subscription_profile', array( $invoice->get_id() ), 'invoicing' ) ) {
+        if (as_unschedule_action('wpinv_renew_authorizenet_subscription_profile', array($invoice->get_id()), 'invoicing')) {
             return;
         }
 
@@ -835,45 +835,45 @@ 
         $this->maybe_process_old_ipn();
 
         // Validate the IPN.
-        if ( empty( $_POST ) || ! $this->validate_ipn() ) {
-		    wp_die( 'Authorize.NET IPN Request Failure', 'Authorize.NET IPN', array( 'response' => 500 ) );
+        if (empty($_POST) || !$this->validate_ipn()) {
+		    wp_die('Authorize.NET IPN Request Failure', 'Authorize.NET IPN', array('response' => 500));
         }
 
         // Event type.
-        $posted = json_decode( file_get_contents('php://input') );
-        if ( empty( $posted ) ) {
-            wp_die( 'Invalid JSON', 'Authorize.NET IPN', array( 'response' => 500 ) );
+        $posted = json_decode(file_get_contents('php://input'));
+        if (empty($posted)) {
+            wp_die('Invalid JSON', 'Authorize.NET IPN', array('response' => 500));
         }
 
         // Process the IPN.
-        $posted = (object) wp_unslash( $posted );
+        $posted = (object) wp_unslash($posted);
 
         // Process refunds.
-        if ( 'net.authorize.payment.refund.created' == $posted->eventType ) {
-            $invoice = new WPInv_Invoice( $posted->payload->merchantReferenceId );
+        if ('net.authorize.payment.refund.created' == $posted->eventType) {
+            $invoice = new WPInv_Invoice($posted->payload->merchantReferenceId);
 
-            if ( $invoice->get_id() && $posted->payload->id == $invoice->get_transaction_id() ) {
+            if ($invoice->get_id() && $posted->payload->id == $invoice->get_transaction_id()) {
                 $invoice->refund();
             }
 
         }
 
         // Held funds approved.
-        if ( 'net.authorize.payment.fraud.approved' == $posted->eventType ) {
-            $invoice = new WPInv_Invoice( $posted->payload->id );
+        if ('net.authorize.payment.fraud.approved' == $posted->eventType) {
+            $invoice = new WPInv_Invoice($posted->payload->id);
 
-            if ( $invoice->get_id() && $posted->payload->id == $invoice->get_transaction_id() ) {
-                $invoice->mark_paid( false, __( 'Payment released', 'invoicing' ));
+            if ($invoice->get_id() && $posted->payload->id == $invoice->get_transaction_id()) {
+                $invoice->mark_paid(false, __('Payment released', 'invoicing'));
             }
 
         }
 
         // Held funds declined.
-        if ( 'net.authorize.payment.fraud.declined' == $posted->eventType ) {
-            $invoice = new WPInv_Invoice( $posted->payload->id );
+        if ('net.authorize.payment.fraud.declined' == $posted->eventType) {
+            $invoice = new WPInv_Invoice($posted->payload->id);
 
-            if ( $invoice->get_id() && $posted->payload->id == $invoice->get_transaction_id() ) {
-                $invoice->set_status( 'wpi-failed', __( 'Payment desclined', 'invoicing' ) );
+            if ($invoice->get_id() && $posted->payload->id == $invoice->get_transaction_id()) {
+                $invoice->set_status('wpi-failed', __('Payment desclined', 'invoicing'));
                 $invoice->save();
             }
 
@@ -891,41 +891,41 @@ 
 	public function maybe_process_old_ipn() {
 
         // Ensure that we are using the old subscriptions.
-        if ( empty( $_POST['x_subscription_id'] ) ) {
+        if (empty($_POST['x_subscription_id'])) {
             return;
         }
 
         // Check validity.
-        $signature = $this->get_option( 'signature_key' );
-        if ( ! empty( $signature ) ) {
-            $login_id  = $this->get_option( 'login_id' );
+        $signature = $this->get_option('signature_key');
+        if (!empty($signature)) {
+            $login_id  = $this->get_option('login_id');
             $trans_id  = $_POST['x_trans_id'];
             $amount    = $_POST['x_amount'];
-            $hash      = hash_hmac ( 'sha512', "^$login_id^$trans_id^$amount^", hex2bin( $signature ) );
+            $hash      = hash_hmac('sha512', "^$login_id^$trans_id^$amount^", hex2bin($signature));
 
-            if ( ! hash_equals( $hash, $_POST['x_SHA2_Hash'] ) ) {
+            if (!hash_equals($hash, $_POST['x_SHA2_Hash'])) {
                 exit;
             }
 
         }
 
         // Fetch the associated subscription.
-        $subscription_id = WPInv_Subscription::get_subscription_id_by_field( $_POST['x_subscription_id'] );
-        $subscription    = new WPInv_Subscription( $subscription_id );
+        $subscription_id = WPInv_Subscription::get_subscription_id_by_field($_POST['x_subscription_id']);
+        $subscription    = new WPInv_Subscription($subscription_id);
 
         // Abort if it is missing or completed.
-        if ( ! $subscription->get_id() || $subscription->has_status( 'completed' ) ) {
+        if (!$subscription->get_id() || $subscription->has_status('completed')) {
             return;
         }
 
         // Payment status.
-        if ( 1 == $_POST['x_response_code'] ) {
+        if (1 == $_POST['x_response_code']) {
 
             $invoice = $subscription->create_payment();
-            $invoice->set_transaction_id( sanitize_text_field( $_POST['x_trans_id'] ) );
-            $invoice->set_status( 'wpi-renewal' );
+            $invoice->set_transaction_id(sanitize_text_field($_POST['x_trans_id']));
+            $invoice->set_status('wpi-renewal');
             $invoice->save();
-            $subscription->add_payment( $invoice );
+            $subscription->add_payment($invoice);
             $subscription->renew();
 
         } else {
@@ -941,28 +941,28 @@ 
 	 */
 	public function validate_ipn() {
 
-        wpinv_error_log( 'Validating Authorize.NET IPN response' );
+        wpinv_error_log('Validating Authorize.NET IPN response');
 
-        if ( empty( $_SERVER['HTTP_X_ANET_SIGNATURE'] ) ) {
+        if (empty($_SERVER['HTTP_X_ANET_SIGNATURE'])) {
             return false;
         }
 
-        $signature = $this->get_option( 'signature_key' );
+        $signature = $this->get_option('signature_key');
 
-        if ( empty( $signature ) ) {
-            wpinv_error_log( 'Error: You have not set a signature key' );
+        if (empty($signature)) {
+            wpinv_error_log('Error: You have not set a signature key');
             return false;
         }
 
-        $hash  = hash_hmac ( 'sha512', file_get_contents('php://input'), hex2bin( $signature ) );
+        $hash = hash_hmac('sha512', file_get_contents('php://input'), hex2bin($signature));
 
-        if ( hash_equals( $hash, $_SERVER['HTTP_X_ANET_SIGNATURE'] ) ) {
-            wpinv_error_log( 'Successfully validated the IPN' );
+        if (hash_equals($hash, $_SERVER['HTTP_X_ANET_SIGNATURE'])) {
+            wpinv_error_log('Successfully validated the IPN');
             return true;
         }
 
-        wpinv_error_log( 'IPN hash is not valid' );
-        wpinv_error_log(  $_SERVER['HTTP_X_ANET_SIGNATURE']  );
+        wpinv_error_log('IPN hash is not valid');
+        wpinv_error_log($_SERVER['HTTP_X_ANET_SIGNATURE']);
         return false;
 
     }
@@ -970,11 +970,11 @@ 
     /**
      * Displays a notice on the checkout page if sandbox is enabled.
      */
-    public function sandbox_notice( $description, $gateway ) {
+    public function sandbox_notice($description, $gateway) {
 
-        if ( $this->id == $gateway && wpinv_is_test_mode( $this->id ) ) {
+        if ($this->id == $gateway && wpinv_is_test_mode($this->id)) {
             $description .= '<br>' . sprintf(
-                __( 'SANDBOX ENABLED. You can use sandbox testing details only. See the %sAuthorize.NET Sandbox Testing Guide%s for more details.', 'invoicing' ),
+                __('SANDBOX ENABLED. You can use sandbox testing details only. See the %sAuthorize.NET Sandbox Testing Guide%s for more details.', 'invoicing'),
                 '<a href="https://developer.authorize.net/hello_world/testing_guide.html">',
                 '</a>'
             );
@@ -988,42 +988,42 @@ 
 	 * 
 	 * @param array $admin_settings
 	 */
-	public function admin_settings( $admin_settings ) {
+	public function admin_settings($admin_settings) {
 
         $currencies = sprintf(
-            __( 'Supported Currencies: %s', 'invoicing' ),
-            implode( ', ', $this->currencies )
+            __('Supported Currencies: %s', 'invoicing'),
+            implode(', ', $this->currencies)
         );
 
         $admin_settings['authorizenet_active']['desc'] .= $admin_settings['authorizenet_active']['desc'] . " ($currencies)";
-        $admin_settings['authorizenet_desc']['std']     = __( 'Pay securely using your credit or debit card.', 'invoicing' );
+        $admin_settings['authorizenet_desc']['std']     = __('Pay securely using your credit or debit card.', 'invoicing');
 
         $admin_settings['authorizenet_login_id'] = array(
             'type' => 'text',
             'id'   => 'authorizenet_login_id',
-            'name' => __( 'API Login ID', 'invoicing' ),
-            'desc' => '<a href="https://support.authorize.net/s/article/How-do-I-obtain-my-API-Login-ID-and-Transaction-Key"><em>' . __( 'How do I obtain my API Login ID and Transaction Key?', 'invoicing' ) . '</em></a>',
+            'name' => __('API Login ID', 'invoicing'),
+            'desc' => '<a href="https://support.authorize.net/s/article/How-do-I-obtain-my-API-Login-ID-and-Transaction-Key"><em>' . __('How do I obtain my API Login ID and Transaction Key?', 'invoicing') . '</em></a>',
         );
 
         $admin_settings['authorizenet_transaction_key'] = array(
             'type' => 'text',
             'id'   => 'authorizenet_transaction_key',
-            'name' => __( 'Transaction Key', 'invoicing' ),
+            'name' => __('Transaction Key', 'invoicing'),
         );
 
         $admin_settings['authorizenet_signature_key'] = array(
             'type' => 'text',
             'id'   => 'authorizenet_signature_key',
-            'name' => __( 'Signature Key', 'invoicing' ),
-            'desc' => '<a href="https://support.authorize.net/s/article/What-is-a-Signature-Key"><em>' . __( 'Learn more.', 'invoicing' ) . '</em></a>',
+            'name' => __('Signature Key', 'invoicing'),
+            'desc' => '<a href="https://support.authorize.net/s/article/What-is-a-Signature-Key"><em>' . __('Learn more.', 'invoicing') . '</em></a>',
         );
 
         $admin_settings['authorizenet_ipn_url'] = array(
             'type'     => 'ipn_url',
             'id'       => 'authorizenet_ipn_url',
-            'name'     => __( 'Webhook URL', 'invoicing' ),
+            'name'     => __('Webhook URL', 'invoicing'),
             'std'      => $this->notify_url,
-            'desc'     => __( 'Create a new webhook using this URL as the endpoint URL and set it to receive all payment events.', 'invoicing' ) . ' <a href="https://support.authorize.net/s/article/How-do-I-add-edit-Webhook-notification-end-points"><em>' . __( 'Learn more.', 'invoicing' ) . '</em></a>',
+            'desc'     => __('Create a new webhook using this URL as the endpoint URL and set it to receive all payment events.', 'invoicing') . ' <a href="https://support.authorize.net/s/article/How-do-I-add-edit-Webhook-notification-end-points"><em>' . __('Learn more.', 'invoicing') . '</em></a>',
             'custom'   => 'authorizenet',
             'readonly' => true,
         );