function commerce_license_delete_references in Commerce License 7

Deletes any references to the given license.

If the referencing entity is a line item, it is deleted. If an order is left without any line items, it is deleted.

1 call to commerce_license_delete_references()

CommerceLicenseEntityController::delete in includes/commerce_license.controller.inc

Overrides EntityBundlePluginEntityController::delete().

File

./commerce_license.module, line 464

Provides a framework for selling access to local or remote resources.

Code

function commerce_license_delete_references($license) {

  // Gather all fields that reference licenses.
  $fields = array();
  foreach (commerce_info_fields('entityreference') as $field_name => $field) {
    if ($field['settings']['target_type'] == 'commerce_license') {
      $fields[] = $field_name;
    }
  }
  $order_ids = array();
  foreach ($fields as $field_name) {

    // Find all entities referencing the given license through this field.
    $query = new EntityFieldQuery();
    $query
      ->fieldCondition($field_name, 'target_id', $license->license_id, '=');
    $result = $query
      ->execute();
    if (!empty($result)) {
      foreach ($result as $entity_type => $data) {
        $entities = entity_load($entity_type, array_keys($data));
        foreach ($entities as $entity_id => $entity) {

          // Remove the reference from the field.
          commerce_entity_reference_delete($entity, $field_name, 'target_id', $license->license_id);

          // If the referencing entity is a line item, delete it.
          // It shouldn't exist without its license.
          if ($entity_type == 'commerce_line_item' && empty($entity->{$field_name})) {
            entity_delete('commerce_line_item', $entity_id);

            // The parent order needs to be examined later and deleted if empty.
            $order_ids[] = $entity->order_id;
          }
          else {
            entity_save($entity_type, $entity);
          }
        }
      }
    }
  }

  // The order in the static cache might not look the same as the one loaded
  // from the database, so the entity_load resets the static cache.
  $order_ids = array_unique($order_ids);
  $orders = entity_load('commerce_order', $order_ids, array(), TRUE);
  foreach ($orders as $order_id => $order) {

    // Delete all orders that don't have any line items anymore.
    if (empty($order->commerce_line_items)) {
      commerce_order_delete($order_id);
    }
  }
}