[IMP] Disable product and variation sync and link them via SQL using the translation_of parameter

README.md

@@ -1,6 +1,6 @@
 # WooCommerce Multilingual API Sync
 
-**Version:** 1.0.1  
+**Version:** 1.0.2  
 **Author:** NuoBiT Solutions, S.L.  
 **License:** GPLv3 or later  
 
@@ -11,7 +11,7 @@ WooCommerce Multilingual API Sync ensures seamless integration between the WooCo
 ## Core Functionality
 
 - **Translatable Attributes**: Automatically marks product attributes added via WooCommerce REST API as translatable in WooCommerce Multilingual.
-- **Product Synchronization Control**: Disables product synchronization hooks in WooCommerce Multilingual to ensure only data sent through the REST API is processed.
+- **Product Synchronization Control**: Disables the automatic synchronization of products and variations in WooCommerce Multilingual and enforces the link between products and variations through the translation_of parameter.
 
 ## Use Cases
 

inc/wc-rest-product-controller-sync.php

@@ -1,7 +1,8 @@
 <?php
 /**
- * Disables product synchronization hooks in WooCommerce Multilingual 
- * to ensure only API-sent data is processed.
+ * Disables the automatic synchronization of products and variations in 
+ * WooCommerce Multilingual and enforces the link between products and 
+ * variations through the translation_of parameter.
  */
 
 namespace Woocommerce_Multilingual_Api_Sync;
@@ -10,20 +11,79 @@
     exit;
 }
 
-add_action( 'rest_api_init', __NAMESPACE__ . '\\disable_product_insert_hook', 20 );
+add_action( 'rest_api_init', __NAMESPACE__ . '\\disable_product_insert_hook', 20);
 
 function disable_product_insert_hook() {
     global $wp_filter;
 
-    $hook_name = 'woocommerce_rest_insert_product_object';
+    $hook_map = [
+        'woocommerce_rest_insert_product_object'             => 'post_product',
+        'woocommerce_rest_insert_product_variation_object'   => 'post_product_variation',
+    ];
 
-    if ( isset( $wp_filter[ $hook_name ] ) ) {
-        foreach ( $wp_filter[ $hook_name ]->callbacks as $priority => $callbacks ) {
-            foreach ( $callbacks as $key => $callback ) {
-                if ( is_array( $callback['function'] ) && $callback['function'][1] === 'insert' ) {
-                    remove_action( $hook_name, $callback['function'], $priority );
+    foreach ( $hook_map as $hook_name => $element_type ) {
+        if ( isset( $wp_filter[ $hook_name ] ) ) {
+            foreach ( $wp_filter[ $hook_name ]->callbacks as $priority => $callbacks ) {
+                foreach ( $callbacks as $key => $callback ) {
+                    if ( is_array( $callback['function'] ) && $callback['function'][1] === 'insert' ) {
+                        remove_action( $hook_name, $callback['function'], $priority );
+                    }
                 }
             }
         }
+
+        add_action( $hook_name, function( $object, $request, $creating ) use ( $element_type ) {
+            insert_product_translation( $object, $request, $creating, $element_type );
+        }, 10, 3 );
+    }
+}
+
+function insert_product_translation( $object, $request, $creating, $element_type ) {
+    $params = $request->get_params();
+
+    $lang_code       = isset( $params['lang'] ) ? $params['lang'] : null;
+    $translation_of  = isset( $params['translation_of'] ) ? (int) $params['translation_of'] : null;
+
+    if ( $lang_code && $translation_of ) {
+        global $wpdb;
+
+        $row = $wpdb->get_row( $wpdb->prepare(
+            "SELECT trid, language_code 
+             FROM {$wpdb->prefix}icl_translations 
+             WHERE element_id = %d 
+             AND element_type = %s", 
+            $translation_of,
+            $element_type
+        ));
+
+        if ( $row ) {
+            $trid         = $row->trid;
+            $source_lang  = $row->language_code;
+            $new_id       = $object->get_id();
+
+            $existing = $wpdb->get_var( $wpdb->prepare(
+                "SELECT translation_id 
+                 FROM {$wpdb->prefix}icl_translations 
+                 WHERE element_id = %d 
+                 AND element_type = %s", 
+                $new_id,
+                $element_type
+            ));
+
+            if ( $existing ) {
+                $wpdb->update(
+                    "{$wpdb->prefix}icl_translations",
+                    [
+                        'trid'                 => $trid,
+                        'language_code'        => $lang_code,
+                        'source_language_code' => $source_lang
+                    ],
+                    [
+                        'element_id'   => $new_id,
+                        'element_type' => $element_type
+                    ]
+                );
+            }
+        }
     }
 }

woocommerce-multilingual-api-sync.php

@@ -2,7 +2,7 @@
 /**
  * Plugin Name: WooCommerce Multilingual API Sync
  * Description: Manages pending synchronization processes in WooCommerce Multilingual.
- * Version: 1.0.1
+ * Version: 1.0.2
  * Author: NuoBiT Solutions S.L.
  * Author URI: https://www.nuobit.com
  */