[MarketPress] - Duplicate Products

mp-duplicate-products.php

<?php
/**
* Plugin Name: [MarketPress] - Duplicate Products
* Plugin URI: https://premium.wpmudev.org/
* Description: Ability to duplicate products
* Author: Panos Lyrakis @ WPMUDEV
* Author URI: https://premium.wpmudev.org/
* License: GPLv2 or later
*/

if ( ! defined( 'ABSPATH' ) ) {
	exit;
}


if ( ! class_exists( 'WPMUDEV_MP_Dulicate_Product' ) ) {

    class WPMUDEV_MP_Dulicate_Product {
        private static $_instance = null;
        
		public static function get_instance() {

			if( is_null( self::$_instance ) ) {
				self::$_instance = new WPMUDEV_MP_Dulicate_Product();
			}
			return self::$_instance;
		}


		private function __construct() {

			add_filter( 'post_row_actions', array( $this, 'product_row_action' ), 10, 2 );
			add_action( 'admin_footer', array( $this, 'enqueue_scripts' ), 10 );
			add_action( 'wp_ajax_wpmudev_mp_duplicate_product', array( $this, 'ajax_duplicate_product' ), 10 );

		}


		public function product_row_action( $actions, $post ){

			if ( $post->post_type == "product" ) {

		    	if ( 'trash' != $post->post_status && current_user_can( 'edit_products' ) ) {
					// create a nonce
					$duplicate_nonce = wp_create_nonce( 'duplicate_product' );
					$actions['duplicate'] = sprintf( '<a data-nonce="%s" href="#" data-id="%s" data-title="%s" class="duplicate-product-link">%s</a>', $duplicate_nonce, $post->ID, $post->post_title, __( 'Duplicate product', 'mp' ) );
				}

		    }
		 
		    return $actions;

		}


		public function enqueue_scripts(){

			$screen = get_current_screen();
			global $pagenow;

			if ( 'edit.php' != $pagenow || 'edit-product' != $screen->id ) {
				return;
			}

			?>
			<script type="text/javascript">
				(function($){
					$(document).ready(function(){

						$( '.duplicate-product-link' ).on( 'click', function( e ) {
							
							e.stopImmediatePropagation();
							e.preventDefault();

							let data, 
							product_info = $( this ),
							product_id = product_info.data( 'id' ),
							product_title = product_info.data( 'title' )
							confirmation_msg = 'You are about to create a duplicate of product "' + product_title + '".\nAre you sure you want to continue?',
							notifications_area = $('<div/>', {
			                                'class' : 'update-nag duplicate-process-msg',
			                                text    : 'Product is being duplicated... Please hold on until process is completed'
			                            });
							$( '#wpbody-content' ).prepend( notifications_area );

							if ( window.confirm( confirmation_msg ) ) {
								data = {
									action: 'wpmudev_mp_duplicate_product',
									nonce: product_info.data( 'nonce' ),
									product_id: product_id
								};

								$.post(ajaxurl, data, function(response) {
		                        
			                        if( response.success ){                            
			                            let success_msg = $('<div/>', {
			                                'class' : 'duplicate-success-msg',
			                                text    : 'Product duplicated... Reloading page'
			                            });

			                            notifications_area.html( success_msg );
			                            window.location.reload(true);

			                        }
			                        else{
			                            alert( 'Error in duplicating' );
			                        }
			                        
			                    });

							}
						});

					});
				})(jQuery);
			</script>
			<?php

		}

		public function ajax_duplicate_product(){

			check_ajax_referer( 'duplicate_product', 'nonce' );
			
			// SmartCrawl analysis may result in memory exhaustion
			if ( class_exists( 'Smartcrawl_Controller_Analysis' ) && Smartcrawl_Controller_Analysis::get()->is_running() ){
				Smartcrawl_Controller_Analysis::stop();	
			}
			
			$data = $_POST;

			if( ! isset( $data['product_id'] ) ){
				wp_send_json(
					array(
					    'success'	=> false,
					    'message'	=> 'No product selected'
					)
				);
			}

			$product_id = intval( $data['product_id'] );

			$product = new MP_Product( $product_id );
			$new_product_id = self::duplicate_product( $product_id );

			if( ! $new_product_id ){
				wp_send_json(
					array(
					    'success'	=> false,
					    'message'	=> 'Something went wrong'
					)
				);
			}

			if ( $product->has_variations() ) {				
				$variations = $product->get_variations();

				foreach( $variations as $variation ){
					$new_variation_id = self::duplicate_product( $variation->ID, $new_product_id );
				}

			}
					
			$return = array(
		        'success'	    => true,
		    );
		    wp_send_json($return);

		}


		public static function duplicate_product( $product_id, $parent_id = null ){

			global $wpdb;

			$product = get_post( $product_id );
			$product_meta = get_post_meta( $product_id );
			$current_user = wp_get_current_user();
			$new_post_author = $current_user->ID;
			$status = is_null( $parent_id ) ? 'draft' : 'publish';
			$parent_id = is_null( $parent_id ) ? 0 : $parent_id;

			if ( isset( $product ) && ! is_null( $product ) ) {

				$args = array(
					'comment_status' => $product->comment_status,
					'ping_status'    => $product->ping_status,
					'post_author'    => $new_post_author,
					'post_content'   => $product->post_content,
					'post_excerpt'   => $product->post_excerpt,
					//'post_name'      => $product->post_name,
					'post_parent'    => $parent_id,
					'post_password'  => $product->post_password,
					'post_status'    => $status,
					'post_title'     => $product->post_title . ' Copy',
					'post_type'      => $product->post_type,
					'to_ping'        => $product->to_ping,
					'menu_order'     => $product->menu_order
				);

				/*
				 * Insert the new Product
				 */
				$new_product_id = wp_insert_post( $args );

				$taxonomies = get_object_taxonomies( MP_Product::get_post_type() ); // returns array of taxonomy names for product CPT. The CPT mp_product_variation wil use terms from these taxonomies

				foreach ($taxonomies as $taxonomy) {

					$product_terms = wp_get_object_terms( $product_id, $taxonomy, array('fields' => 'slugs') );
					wp_set_object_terms( $new_product_id, $product_terms, $taxonomy, false );

				}
		 
				/*
				 * Duplicate Product meta. Quicker with a single ISNERT query
				 */

				$product_meta = get_post_meta( $product_id );
				$sql_insert_values = array();

				$exclude_meta_fields = apply_filters( '
					WPMUDEV_MP_Dulicate_Product/exclude_meta_fields', 
					array(
						'eab_event_id', // For Events + Integration, lets not copy the `eab_event_id` meta field,
						'_wds_analysis', // Should be recalculated
						'_wds_readability',
						'_wds_twitter',
						'_jetpack_related_posts_cache'						
					)
				);

				foreach( $product_meta as $meta_key => $meta_value ){

					if ( in_array( $meta_key, $exclude_meta_fields ) ) {
						continue;
					}

					//For "regular_price" lets use update_post_meta so hooks are triggered
					if( 'regular_price' == $meta_key ){
						update_post_meta( $new_product_id, 'regular_price', $meta_value[0] );
						continue;
					}

					$_meta_value = str_replace( "'", "&#039;", $meta_value[0] );

					$sql_insert_values[] = sprintf("(%d,'%s','%s')", $new_product_id, $meta_key, $meta_value[0] );
				}

				if( ! empty( $sql_insert_values ) ){
					$sql_query = "INSERT INTO {$wpdb->postmeta} (post_id, meta_key, meta_value) VALUES ";
					$sql_query .= implode( ', ', $sql_insert_values);
					$wpdb->query( $sql_query );			
				}

			}

			return $new_product_id;
		}		

	}

	add_action( 'plugins_loaded', function(){
        $GLOBALS['WPMUDEV_MP_Dulicate_Product'] = WPMUDEV_MP_Dulicate_Product::get_instance();
    }, 10 );

}