function ddf_field_widget_options_select_form_alter in Dynamic dependent fields 7

Implements hook_field_widget_WIDGET_TYPE_form_alter().

File

./ddf.module, line 344

Code

function ddf_field_widget_options_select_form_alter(&$element, &$form_state, $context) {

  // Fix dependent fields with selects which loose multiple property for empty
  // lists, see options_field_widget_form() function in options.module file.
  $dependencies = ddf_load_dependencies($context['instance']['entity_type'], $context['instance']['bundle']);
  if (empty($dependencies)) {
    return;
  }
  $field = $context['field'];
  foreach ($dependencies as $dependency) {
    if ($dependency[1] == $field['field_name']) {
      if (is_array($dependency[2]) && isset($dependency[2]['type']) && $dependency[2]['type'] != 'options') {

        // Not options-type dependency, no special processing is required.
        continue;
      }
      $ddf_processor = array(
        'ddf_selector_element_process',
      );
      if (empty($element['#process'])) {
        $info = element_info($element['#type']);
        if (!empty($info['#process'])) {
          $element['#process'] = array_merge($info['#process'], $ddf_processor);
        }
      }
      else {
        $element['#process'] = $ddf_processor;
      }
      $element['#value_callback'] = 'ddf_selector_element_value';
      if (isset($element['#multiple']) && !$element['#multiple'] && $field['cardinality'] != 1) {
        $element['#multiple'] = TRUE;
      }
    }
  }
}