Add Global Trade Identification Numbers (GTINs) to WooCommerce products Add

Author: lukecav

add-global-trade-identification-numbers-gtins-to-woocommerce-products.code-snippets.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+<!-- This is a code snippets export file generated by the Code Snippets WordPress plugin. -->
+<!-- https://wordpress.org/plugins/code-snippets -->
+<!-- To import these snippets a WordPress site follow these steps: -->
+<!-- 1. Log in to that site as an administrator. -->
+<!-- 2. Install the Code Snippets plugin using the directions provided at the above link. -->
+<!-- 3. Go to 'Tools: Import' in the WordPress admin panel. -->
+<!-- 4. Click on the "Code Snippets" importer in the list -->
+<!-- 5. Upload this file using the form provided on that page. -->
+<!-- 6. Code Snippets will then import all of the snippets and associated information contained in this file into your site. -->
+<!-- 7. You will then have to visit the 'Snippets: All Snippets' admin menu and activate desired snippets. -->
+<!-- generator="Code Snippets/2.9.4" created="2018-01-05 17:34" -->
+<snippets>
+  <snippet scope="1">
+    <name>Add Global Trade Identification Numbers (GTINs) to WooCommerce products</name>
+    <desc></desc>
+    <tags>gtin, woocommerce, field, custom, upc, ean, isbn</tags>
+    <code>/**&#13;
+ * Render the Global Trade Identification Number (GTIN) meta field.&#13;
+ */&#13;
+function woocommerce_render_gtin_field() {&#13;
+   $input   = array(&#13;
+      'id'          =&gt; '_gtin',&#13;
+      'label'       =&gt; sprintf(&#13;
+         '&lt;abbr title="%1$s"&gt;%2$s&lt;/abbr&gt;',&#13;
+         _x( 'Global Trade Identification Number', 'field label', 'my-theme' ),&#13;
+         _x( 'GTIN', 'abbreviated field label', 'my-theme' )&#13;
+      ),&#13;
+      'value'       =&gt; get_post_meta( get_the_ID(), '_gtin', true ),&#13;
+      'desc_tip'    =&gt; true,&#13;
+      'description' =&gt; __( 'Enter the Global Trade Identification Number (UPC, EAN, ISBN, etc.)', 'my-theme' ),&#13;
+   );&#13;
+?&gt;&#13;
+&#13;
+   &lt;div id="gtin_attr" class="options_group"&gt;&#13;
+      &lt;?php woocommerce_wp_text_input( $input ); ?&gt;&#13;
+   &lt;/div&gt;&#13;
+&#13;
+&lt;?php&#13;
+}&#13;
+&#13;
+add_action( 'woocommerce_product_options_inventory_product_data', 'woocommerce_render_gtin_field' );&#13;
+&#13;
+/**&#13;
+ * Save the product's GTIN number, if provided.&#13;
+ *&#13;
+ * @param int $product_id The ID of the product being saved.&#13;
+ */&#13;
+function woocommerce_save_gtin_field( $product_id ) {&#13;
+   if (&#13;
+      ! isset( $_POST['_gtin'], $_POST['woocommerce_meta_nonce'] )&#13;
+      || ( defined( 'DOING_AJAX' ) &amp;&amp; DOING_AJAX )&#13;
+      || ! current_user_can( 'edit_products' )&#13;
+      || ! wp_verify_nonce( $_POST['woocommerce_meta_nonce'], 'woocommerce_save_data' )&#13;
+   ) {&#13;
+      return;&#13;
+   }&#13;
+&#13;
+   $gtin = sanitize_text_field( $_POST['_gtin'] );&#13;
+&#13;
+   update_post_meta( $product_id, '_gtin', $gtin );&#13;
+}&#13;
+&#13;
+add_action( 'woocommerce_process_product_meta','woocommerce_save_gtin_field' );</code>
+  </snippet>
+</snippets>