function commerce_discount_usage_order_discounts in Commerce Discount 7

Loads all discounts connected to an order.

Loads discounts including line item level discounts traced through line item unit price components.

Parameters

object $order: A fully qualified order object.

Return value

array List of order discounts.

1 call to commerce_discount_usage_order_discounts()

commerce_discount_usage_record_order_usage in ./commerce_discount.module

Record order usage.

File

./commerce_discount.module, line 1141

Defines the discount and discount offer entities, bundles and functionality.

Code

function commerce_discount_usage_order_discounts($order) {
  $order_wrapper = entity_metadata_wrapper('commerce_order', $order);
  $order_discounts = array();
  foreach ($order_wrapper->commerce_line_items as $line_item_wrapper) {
    try {
      $unit_price = commerce_price_wrapper_value($line_item_wrapper, 'commerce_unit_price', TRUE);
    } catch (Exception $ex) {

      // Log and continue if we're unable to load the unit price.
      // @TODO Resolve how to prevent commerce_cart_order_refresh() from firing
      // inside an order save via entity_load_unchanged().
      // @see https://www.drupal.org/node/2661530
      $backtrace = debug_backtrace(DEBUG_BACKTRACE_PROVIDE_OBJECT | DEBUG_BACKTRACE_IGNORE_ARGS);
      $watchdog_variables = array(
        '@backtrace' => json_encode($backtrace, JSON_PRETTY_PRINT),
      );
      watchdog('commerce_discount', 'Discount usage line item is missing. Backtrace: <pre>@backtrace</pre>', $watchdog_variables, WATCHDOG_DEBUG);
      continue;
    }
    foreach ($unit_price['data']['components'] as $key => $component) {
      if (strpos($component['name'], 'discount|') === 0 && !empty($component['price']['data']['discount_name'])) {
        $order_discount_name = $component['price']['data']['discount_name'];
        $order_discount_wrapper = entity_metadata_wrapper('commerce_discount', $order_discount_name);

        // Make a list of discounts present via the order's line item price
        // components.
        if ($order_discount_wrapper
          ->value()) {
          $order_discounts[] = $order_discount_wrapper->name
            ->value();
        }
      }
    }
  }

  // Add the set of discounts directly referenced on the order.
  if (isset($order->commerce_discounts) && $order_wrapper->commerce_discounts
    ->value()) {
    foreach ($order_wrapper->commerce_discounts
      ->value() as $discount) {
      if (isset($discount->name)) {
        $order_discounts[] = $discount->name;
      }
    }
  }
  $order_discounts = array_unique($order_discounts);
  return $order_discounts;
}