function merci_delete_node_type_validate in MERCI (Manage Equipment Reservations, Checkout and Inventory) 6

Same name and namespace in other branches

1. 6.2 merci.module \merci_delete_node_type_validate()
2. 7.2 merci.module \merci_delete_node_type_validate()

Validates deletion of node types.

Parameters

$type: The type being deleted.

1 call to merci_delete_node_type_validate()

merci_form_alter in ./merci.module

Implementation of hook_form_alter().

File

./merci.module, line 1576

MERCI - Managed Equipment Reservation Checkout and Inventory

Code

function merci_delete_node_type_validate($type) {
  $settings = merci_load_content_type_settings($type);

  // Only validate active MERCI node types.
  if ($settings->type_setting != 'disabled') {

    // Determine CCK table and columns the date data is stored in.
    $field = content_fields('field_merci_date');
    $db_info = content_database_info($field);
    $table = $db_info['table'];

    // Join on nid here so that any version of the reservation that contain
    // the bucket/resource is caught.
    $reservations = db_query("SELECT ctn.nid, ctn.title FROM {" . $table . "} ct INNER JOIN {merci_reservation_detail} md ON ct.vid = md.vid INNER JOIN {node} ctn ON ct.nid = ctn.nid INNER JOIN {merci_{$settings->type_setting}_node} m ON md.placeholder_nid = m.nid INNER JOIN {node} mn ON m.vid = mn.vid  WHERE mn.type = '%s' AND m.sub_type = %d ORDER BY ct.nid, ct.vid", $settings->type, MERCI_SUB_TYPE_RESERVATION);
    $bad_reservations = array();
    while ($reservation = db_fetch_object($reservations)) {
      $bad_reservations[$reservation->nid] = l($reservation->title, "node/{$reservation->nid}/edit", array(
        'query' => drupal_get_destination(),
      ));
    }
    if (!empty($bad_reservations)) {
      drupal_set_message(t('@type can not be deleted because it is associated with the following reservations:', array(
        '@type' => $settings->name,
      )) . theme('item_list', $bad_reservations), 'error');
      module_invoke_all('exit');
      drupal_access_denied();
    }
  }
}