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<?php |
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// Exit if accessed directly. |
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if (!defined( 'ABSPATH' ) ) exit; |
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function wpinv_subscription_init() { |
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return WPInv_Subscriptions::instance(); |
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} |
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add_action( 'plugins_loaded', 'wpinv_subscription_init', 100 ); |
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/** |
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* WPInv_Subscriptions Class. |
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* |
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* @since 1.0.0 |
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*/ |
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class WPInv_Subscriptions { |
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private static $instance; |
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/** |
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* Main WPInv_Subscriptions Instance |
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*/ |
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public static function instance() { |
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if ( ! isset( self::$instance ) ) { |
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self::$instance = new WPInv_Subscriptions; |
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self::$instance->init(); |
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} |
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return self::$instance; |
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} |
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/** |
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* Constructor -- prevent new instances |
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* |
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* @since 1.0.0 |
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*/ |
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private function __construct(){ |
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} |
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/** |
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* Get things started |
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* |
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* Sets up inits actions and filters |
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* |
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* @since 1.0.0 |
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*/ |
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function init() { |
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self::setup_constants(); |
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self::actions(); |
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self::filters(); |
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} |
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/** |
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* Setup plugin constants. |
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* |
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* @access private |
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* @since 1.0.0 |
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* @return void |
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*/ |
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private function setup_constants() { |
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// Make sure CAL_GREGORIAN is defined. |
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if ( ! defined( 'CAL_GREGORIAN' ) ) { |
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define( 'CAL_GREGORIAN', 1 ); |
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} |
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} |
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/** |
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* Add our actions |
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* |
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* @since 1.0.0 |
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* @return void |
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*/ |
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private function actions() { |
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add_action( 'admin_menu', array( $this, 'wpinv_subscriptions_list' ), 10 ); |
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add_action( 'admin_notices', array( $this, 'notices' ) ); |
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add_action( 'init', array( $this, 'wpinv_post_actions' ) ); |
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add_action( 'init', array( $this, 'wpinv_get_actions' ) ); |
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add_action( 'wpinv_cancel_subscription', array( $this, 'wpinv_process_cancellation' ) ); |
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add_action( 'wpinv_checkout_before_send_to_gateway', array( $this, 'wpinv_checkout_add_subscription' ), -999, 2 ); |
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add_action( 'wpinv_subscriptions_front_notices', array( $this, 'notices' ) ); |
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} |
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/** |
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* Add our filters |
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* |
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* @since 1.0 |
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* @return void |
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*/ |
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private function filters() { |
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} |
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/** |
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* Register our Subscriptions submenu |
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* |
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* @since 2.4 |
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* @return void |
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*/ |
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public function wpinv_subscriptions_list() { |
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add_submenu_page( |
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'wpinv', |
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__( 'Subscriptions', 'invoicing' ), |
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__( 'Subscriptions', 'invoicing' ), |
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'manage_invoicing', |
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'wpinv-subscriptions', |
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'wpinv_subscriptions_page' |
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); |
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} |
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public function notices() { |
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if( empty( $_GET['wpinv-message'] ) ) { |
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return; |
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} |
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$type = 'updated'; |
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$message = ''; |
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switch( strtolower( $_GET['wpinv-message'] ) ) { |
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case 'updated' : |
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$message = __( 'Subscription updated successfully.', 'invoicing' ); |
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break; |
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case 'deleted' : |
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$message = __( 'Subscription deleted successfully.', 'invoicing' ); |
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break; |
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case 'cancelled' : |
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$message = __( 'Subscription cancelled successfully.', 'invoicing' ); |
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break; |
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} |
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if ( ! empty( $message ) ) { |
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echo '<div class="' . esc_attr( $type ) . '"><p>' . $message . '</p></div>'; |
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} |
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} |
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/** |
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* Every wpinv_action present in $_GET is called using WordPress's do_action function. |
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* These functions are called on init. |
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* |
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* @since 1.0.0 |
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* @return void |
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*/ |
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function wpinv_get_actions() { |
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if ( isset( $_GET['wpinv_action'] ) ) { |
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do_action( 'wpinv_' . $_GET['wpinv_action'], $_GET ); |
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} |
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} |
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/** |
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* Every wpinv_action present in $_POST is called using WordPress's do_action function. |
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* These functions are called on init. |
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* |
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* @since 1.0.0 |
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* @return void |
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*/ |
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function wpinv_post_actions() { |
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if ( isset( $_POST['wpinv_action'] ) ) { |
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do_action( 'wpinv_' . $_POST['wpinv_action'], $_POST ); |
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} |
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} |
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/** |
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* Get pretty subscription frequency |
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* |
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* @param $period |
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* @param int $frequency_count The frequency of the period. |
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* @return mixed|string|void |
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*/ |
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public static function wpinv_get_pretty_subscription_frequency( $period, $frequency_count = 1) { |
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$frequency = ''; |
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//Format period details |
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switch ( $period ) { |
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case 'day' : |
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$frequency = sprintf( _n('%d Day', '%d Days', $frequency_count, 'invoicing'), $frequency_count); |
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break; |
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case 'week' : |
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$frequency = sprintf( _n('%d Week', '%d Weeks', $frequency_count, 'invoicing'), $frequency_count); |
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break; |
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case 'month' : |
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$frequency = sprintf( _n('%d Month', '%d Months', $frequency_count, 'invoicing'), $frequency_count); |
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break; |
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case 'year' : |
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$frequency = sprintf( _n('%d Year', '%d Years', $frequency_count, 'invoicing'), $frequency_count); |
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break; |
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default : |
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$frequency = apply_filters( 'wpinv_recurring_subscription_frequency', $frequency, $period, $frequency_count ); |
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break; |
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} |
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return $frequency; |
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} |
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/** |
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* Handles cancellation requests for a subscription |
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* |
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* @access public |
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* @since 1.0.0 |
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* @return void |
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*/ |
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public function wpinv_process_cancellation( $data ) { |
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if( empty( $data['sub_id'] ) ) { |
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return; |
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} |
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if( ! is_user_logged_in() ) { |
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return; |
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} |
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if( ! wp_verify_nonce( $data['_wpnonce'], 'wpinv-recurring-cancel' ) ) { |
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wp_die( __( 'Error', 'invoicing' ), __( 'Nonce verification failed', 'invoicing' ), array( 'response' => 403 ) ); |
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} |
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$data['sub_id'] = absint( $data['sub_id'] ); |
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$subscription = new WPInv_Subscription( $data['sub_id'] ); |
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if( ! $subscription->can_cancel() ) { |
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wp_die( __( 'Error', 'invoicing' ), __( 'This subscription cannot be cancelled', 'invoicing' ), array( 'response' => 403 ) ); |
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} |
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try { |
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do_action( 'wpinv_recurring_cancel_' . $subscription->gateway . '_subscription', $subscription, true ); |
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$subscription->cancel(); |
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if( is_admin() ) { |
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wp_redirect( admin_url( 'admin.php?page=wpinv-subscriptions&wpinv-message=cancelled&id=' . $subscription->id ) ); |
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exit; |
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} else { |
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$redirect = remove_query_arg( array( '_wpnonce', 'wpinv_action', 'sub_id' ), add_query_arg( array( 'wpinv-message' => 'cancelled' ) ) ); |
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$redirect = apply_filters( 'wpinv_recurring_cancellation_redirect', $redirect, $subscription ); |
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wp_safe_redirect( $redirect ); |
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exit; |
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} |
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} catch ( Exception $e ) { |
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wp_die( __( 'Error', 'invoicing' ), $e->getMessage(), array( 'response' => 403 ) ); |
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} |
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} |
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/** |
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* Create subscription on checkout |
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* |
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* @access public |
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* @since 1.0.0 |
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* @return void |
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*/ |
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public function wpinv_checkout_add_subscription( $invoice, $invoice_data ) { |
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if ( ! ( ! empty( $invoice->ID ) && $invoice->is_recurring() ) ) { |
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return; |
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} |
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$item = $invoice->get_recurring( true ); |
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if ( empty( $item ) ) { |
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return; |
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} |
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$invoice_date = $invoice->get_invoice_date( false ); |
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$status = 'pending'; |
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$period = $item->get_recurring_period( true ); |
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$interval = $item->get_recurring_interval(); |
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$bill_times = (int)$item->get_recurring_limit(); |
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$add_period = $interval . ' ' . $period; |
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$trial_period = ''; |
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View Code Duplication |
if ( $invoice->is_free_trial() ) { |
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$status = 'trialling'; |
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$trial_period = $item->get_trial_period( true ); |
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$free_interval = $item->get_trial_interval(); |
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$trial_period = $free_interval . ' ' . $trial_period; |
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$add_period = $trial_period; |
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} |
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300
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$expiration = date_i18n( 'Y-m-d H:i:s', strtotime( '+' . $add_period . ' 23:59:59', strtotime( $invoice_date ) ) ); |
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$args = array( |
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'product_id' => $item->ID, |
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'customer_id' => $invoice->user_id, |
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'parent_payment_id' => $invoice->ID, |
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'status' => $status, |
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'frequency' => $interval, |
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'period' => $period, |
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'initial_amount' => $invoice->get_total(), |
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'recurring_amount' => $invoice->get_recurring_details( 'total' ), |
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'bill_times' => $bill_times, |
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'created' => $invoice_date, |
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'expiration' => $expiration, |
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'trial_period' => $trial_period, |
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315
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'profile_id' => '', |
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316
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'transaction_id' => '', |
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317
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); |
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318
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319
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$subscription = wpinv_get_subscription( $invoice ); |
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320
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321
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if ( empty( $subscription ) ) { |
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322
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$subscription = new WPInv_Subscription(); |
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323
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$subscription->create( $args ); |
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324
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} |
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325
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326
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|
return $subscription; |
|
327
|
|
|
} |
|
328
|
|
|
} |
Adding explicit visibility (
private,protected, orpublic) is generally recommend to communicate to other developers how, and from where this method is intended to be used.