function course_uc_restrict_qty_uc_cart_alter in Course 6

Implements hook_uc_cart_alter().

File

modules/course_uc/course_uc.module, line 189

Code

function course_uc_restrict_qty_uc_cart_alter(&$cart_items) {
  if (variable_get('course_uc_restrict_qty', 1)) {
    global $user;
    foreach ($cart_items as $key => $cart_item) {
      $node = node_load($cart_item->nid);
      if (course_node_is_course($node) && $cart_item->qty > 1) {
        $cart_items[$key]->qty = 1;
        $sql = "update {uc_cart_products} set qty = 1 where cart_id = %d AND nid = %d";
        db_query($sql, $user->uid, $node->nid);
        if (!$message) {
          drupal_set_message('Sorry, you may not purchase multiple identical courses.', 'error');
          $message = true;
        }
      }
    }
  }
}