add-a-upc-and-ean-meta-fields-to-variations-in-woocommerce.code-snippets.xml

<?xml version="1.0" encoding="UTF-8"?>
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<snippets>
  <snippet scope="0">
    <name>Add a UPC and EAN meta fields to variations in WooCommerce</name>
    <desc></desc>
    <tags>upc, ean, meta, field, woocommerce, product, variations</tags>
    <code>add_action( 'woocommerce_product_after_variable_attributes', 'jb_woo_variation_add_upc_and_ean_fields', 10, 3);&#13;
function jb_woo_variation_add_upc_and_ean_fields($loop, $variation_data, $variation) {&#13;
	woocommerce_wp_text_input( array(&#13;
      'id' =&gt; '_upc[' . $variation-&gt;ID . ']',&#13;
      'label' =&gt; 'UPC',&#13;
      'description' =&gt; '',&#13;
      'desc_tip' =&gt; 'false',&#13;
      'value' =&gt; get_post_meta( $variation-&gt;ID, '_upc', true ),&#13;
      'placeholder' =&gt; '',&#13;
      'wrapper_class' =&gt; 'form-row form-row-first',&#13;
      'type' =&gt; 'text'&#13;
    ));&#13;
&#13;
    woocommerce_wp_text_input( array(&#13;
      'id' =&gt; '_ean[' . $variation-&gt;ID . ']',&#13;
      'label' =&gt; 'EAN',&#13;
      'description' =&gt; '',&#13;
      'desc_tip' =&gt; 'false',&#13;
      'value' =&gt; get_post_meta( $variation-&gt;ID, '_ean', true ),&#13;
      'placeholder' =&gt; '',&#13;
      'wrapper_class' =&gt; 'form-row form-row-last',&#13;
      'type' =&gt; 'text'&#13;
    ));&#13;
}&#13;
&#13;
//save the new meta data to the variations&#13;
add_action( 'woocommerce_save_product_variation', 'jb_woo_add_unit_size_field_save' );&#13;
function jb_woo_add_unit_size_field_save($post_id){&#13;
	$upc = $_POST['_upc'][ $post_id ];&#13;
	if ( ! empty( $_POST['_upc'] ) ) {&#13;
		update_post_meta( $post_id, '_upc', esc_attr( $upc ) );&#13;
	}&#13;
&#13;
	$ean = $_POST['_ean'][ $post_id ];&#13;
	if ( ! empty( $_POST['_ean'] ) ) {&#13;
		update_post_meta( $post_id, '_ean', esc_attr( $ean ) );&#13;
	}&#13;
}</code>
  </snippet>
</snippets>