function commerce_cart_order_empty in Commerce Core 7

Deletes every product line item from a shopping cart order.

Parameters

$order: The shopping cart order to empty.

Return value

The order with the product line items all removed.

1 call to commerce_cart_order_empty()

commerce_cart_rules_empty in modules/cart/commerce_cart.rules.inc

Rules action: empties a cart order.

File

modules/cart/commerce_cart.module, line 1525

Implements the shopping cart system and add to cart features.

Code

function commerce_cart_order_empty($order) {
  $order_wrapper = entity_metadata_wrapper('commerce_order', $order);

  // Build an array of product line item IDs.
  $line_item_ids = array();
  foreach ($order_wrapper->commerce_line_items as $delta => $line_item_wrapper) {
    $line_item_ids[] = $line_item_wrapper->line_item_id
      ->value();
  }

  // Delete each line item one by one from the order. This is done this way
  // instead of unsetting each as we find it to ensure that changing delta
  // values don't prevent an item from being removed from the order.
  foreach ($line_item_ids as $line_item_id) {
    $order = commerce_cart_order_product_line_item_delete($order, $line_item_id, TRUE);
  }

  // Allow other modules to update the order on empty prior to save.
  module_invoke_all('commerce_cart_order_empty', $order);

  // Save and return the order.
  commerce_order_save($order);
  return $order;
}