function block_add_block_form_validate in Drupal 7

Same name and namespace in other branches

1. 6 modules/block/block.admin.inc \block_add_block_form_validate()

Form validation handler for block_add_block_form().

See also

block_add_block_form()

block_add_block_form_submit()

File

modules/block/block.admin.inc, line 537

Admin page callbacks for the block module.

Code

function block_add_block_form_validate($form, &$form_state) {
  $custom_block_exists = (bool) db_query_range('SELECT 1 FROM {block_custom} WHERE info = :info', 0, 1, array(
    ':info' => $form_state['values']['info'],
  ))
    ->fetchField();
  if (empty($form_state['values']['info']) || $custom_block_exists) {
    form_set_error('info', t('Ensure that each block description is unique.'));
  }
}