function field_ui_field_edit_form_validate

Form validation handler for field_ui_field_edit_form().

See also

field_ui_field_edit_form_submit().

File

drupal/core/modules/field_ui/field_ui.admin.inc, line 1055

Administrative interface for custom field type creation.

Code

function field_ui_field_edit_form_validate($form, &$form_state) {

  // Take the incoming values as the $instance definition, so that the 'default
  // value' gets validated using the instance settings being submitted.
  $instance = $form['#instance'];
  $field_name = $instance['field_name'];
  $entity = $form['#entity'];

  // Validate field cardinality.
  $cardinality = $form_state['values']['field']['container']['cardinality'];
  $cardinality_other = $form_state['values']['field']['container']['cardinality_other'];
  if ($cardinality == 'other' && empty($cardinality_other)) {
    form_error($form['field']['container']['cardinality_other'], t('Number of values is required.'));
  }
  if (isset($form['instance']['default_value_widget'])) {
    $element = $form['instance']['default_value_widget'];

    // Extract the 'default value'.
    $items = array();
    $instance
      ->getWidget()
      ->submit($entity, LANGUAGE_NOT_SPECIFIED, $items, $element, $form_state);

    // Grab the field definition from $form_state.
    $field_state = field_form_get_state($element['#parents'], $field_name, LANGUAGE_NOT_SPECIFIED, $form_state);
    $field = $field_state['field'];

    // Validate the value.
    $errors = array();
    $function = $field['module'] . '_field_validate';
    if (function_exists($function)) {
      $function(NULL, NULL, $field, $instance, LANGUAGE_NOT_SPECIFIED, $items, $errors);
    }

    // Report errors.
    if (isset($errors[$field_name][LANGUAGE_NOT_SPECIFIED])) {

      // Store reported errors in $form_state.
      $field_state['errors'] = $errors[$field_name][LANGUAGE_NOT_SPECIFIED];
      field_form_set_state($element['#parents'], $field_name, LANGUAGE_NOT_SPECIFIED, $form_state, $field_state);

      // Assign reported errors to the correct form element.
      $instance
        ->getWidget()
        ->flagErrors($entity, LANGUAGE_NOT_SPECIFIED, $items, $element, $form_state);
    }
  }
}