function dc_ajax_add_cart_ajax_cart_form in Commerce Ajax Add to Cart 7

Same name and namespace in other branches

1. 7.2 dc_ajax_add_cart.module \dc_ajax_add_cart_ajax_cart_form()

AJAX-ify the product add to cart.

AJAX callback for all Commerce add to cart form.

1 string reference to 'dc_ajax_add_cart_ajax_cart_form'

dc_ajax_add_cart_form_alter in ./dc_ajax_add_cart.module

Implements hook_form_alter().

File

./dc_ajax_add_cart.module, line 200

Ajax add to cart module.

Code

function dc_ajax_add_cart_ajax_cart_form(&$form, &$form_state) {
  $form_errors = form_get_errors();

  // AJAX commands array.
  $commands = array();
  if (!empty($form_errors)) {

    // Show Drupal status message without page refresh.
    // @see https://www.drupal.org/node/1271004#comment-7205478
    $commands[] = ajax_command_remove('div.messages');
    $commands[] = ajax_command_before('#main-content', theme('status_messages'));
    return array(
      '#type' => 'ajax',
      '#commands' => $commands,
    );
  }

  // Get the current status of commerce cart.
  $commerce_cart = dc_ajax_add_cart_get_commerce_cart_details();

  // If the user has ordered items.
  if ($commerce_cart['order']) {

    // Get the line items in cart with their quantity and total.
    $line_items = $commerce_cart['wrapper']->commerce_line_items;
    $quantity = commerce_line_items_quantity($line_items, commerce_product_line_item_types());
    $total = commerce_line_items_total($line_items);
    $ajax_shopping_cart_content = theme('dc_ajax_shopping_cart', array(
      'order' => $commerce_cart['order'],
      'line_items' => $line_items,
      'quantity' => $quantity,
      'total' => $total,
    ));
    $commands[] = dc_ajax_add_cart_command_html('div.ajax-shopping-cart-wrapper', $ajax_shopping_cart_content);

    // Update the contents of shopping cart.
    $ajax_shopping_cart_teaser_content = theme('dc_ajax_shopping_cart_teaser', array(
      'order' => $commerce_cart['order'],
      'quantity' => $quantity,
      'total' => $total,
    ));
    $commands[] = dc_ajax_add_cart_command_html('div.ajax-shopping-cart-teaser', $ajax_shopping_cart_teaser_content);

    // Display add to cart message.
    if (variable_get(DC_AJAX_ADD_CART_DISPLAY_POPUP, 'display_popup_message') == 'display_popup_message') {

      // Gather information to display product information in popup message.
      $last_line_item = $form_state['line_item'];
      $last_line_item_product = commerce_product_load($form_state['values']['product_id']);
      $last_line_item_quantity = $form_state['values']['quantity'];
      $content = theme('dc_ajax_add_to_cart_message', array(
        'line_item' => $last_line_item,
        'product' => $last_line_item_product,
        'quantity' => $last_line_item_quantity,
      ));
      $commands[] = ajax_command_prepend('body', $content);
    }

    // Clear status messages if any.
    $commands[] = ajax_command_remove('div.messages');
    return array(
      '#type' => 'ajax',
      '#commands' => $commands,
    );
  }
}