public static function bulk_edit_variations() {
		ob_start();

		check_ajax_referer( 'bulk-edit-variations', 'security' );

		// Check permissions again and make sure we have what we need.
		if ( ! current_user_can( 'edit_products' ) || empty( $_POST['product_id'] ) || empty( $_POST['bulk_action'] ) ) {
			wp_die( -1 );
		}

		$product_id  = absint( $_POST['product_id'] );
		$bulk_action = wc_clean( wp_unslash( $_POST['bulk_action'] ) );
		$data        = ! empty( $_POST['data'] ) ? wc_clean( wp_unslash( $_POST['data'] ) ) : array();
		$variations  = array();

		if ( apply_filters( 'woocommerce_bulk_edit_variations_need_children', true ) ) {
			$variations = get_posts(
				array(
					'post_parent'    => $product_id,
					'posts_per_page' => -1,
					'post_type'      => 'product_variation',
					'fields'         => 'ids',
					'post_status'    => array( 'publish', 'private' ),
				)
			);
		}

		if ( method_exists( __CLASS__, "variation_bulk_action_$bulk_action" ) ) {
			call_user_func( array( __CLASS__, "variation_bulk_action_$bulk_action" ), $variations, $data );
		} else {
			do_action( 'woocommerce_bulk_edit_variations_default', $bulk_action, $data, $product_id, $variations );
		}

		do_action( 'woocommerce_bulk_edit_variations', $bulk_action, $data, $product_id, $variations );
		WC_Product_Variable::sync( $product_id );
		wc_delete_product_transients( $product_id );
		wp_die();
	}