function multifield_form_field_ui_field_overview_form_alter in Multifield 7.2

Same name and namespace in other branches

1. 7 multifield.module \multifield_form_field_ui_field_overview_form_alter()

Implements hook_form_FORM_ID_alter() for field_ui_field_overview_form().

File

./multifield.module, line 500

Code

function multifield_form_field_ui_field_overview_form_alter(&$form, &$form_state) {
  $multifields = array_intersect_key(multifield_get_fields(), array_flip($form['#fields']));
  foreach ($multifields as $field_name => $machine_name) {
    $subfields = multifield_type_get_subfields($machine_name);
    if (!count($subfields)) {
      $form['fields'][$field_name]['#attributes']['class'][] = 'warning';
      $form['fields'][$field_name]['#attributes']['title'] = t('This multifield does not have any subfields yet.');
    }
    $form['fields'][$field_name]['type']['#suffix'] = ' | ' . l(t('Manage Subfields'), 'admin/structure/multifield/manage/' . $machine_name . '/fields', array(
      'query' => drupal_get_destination(),
    )) . '';
  }
  if ($form['#entity_type'] != 'multifield') {
    return;
  }

  // Prevent multifields from being added to multifields themselves.
  $form['fields']['_add_new_field']['type']['#options'] = array_diff_key($form['fields']['_add_new_field']['type']['#options'], module_invoke('multifield', 'field_info'));
  if (isset($form['fields']['_add_existing_field'])) {
    $form['fields']['_add_existing_field']['field_name']['#options'] = array_diff_key($form['fields']['_add_existing_field']['field_name']['#options'], multifield_get_fields());
  }

  // If this is a field attached to a multifield type that has instances, then
  // preven changes being made to it so that it will not change field schema.
  if (multifield_type_has_data($form['#bundle'])) {
    drupal_set_message(t('Because the multifield already has data, some subfield settings can no longer be changed.'), 'warning');

    //$form['fields']['_add_new_field']['#access'] = FALSE;

    //$form['fields']['_add_existing_field']['#access'] = FALSE;
    unset($form['fields']['_add_new_field']);
    unset($form['fields']['_add_existing_field']);
    unset($form['fields']['#regions']['add_new']);
    foreach ($form['#fields'] as $field_name) {
      $form['fields'][$field_name]['delete'] = array();
    }
  }
}