public static function SelectionBase::settingsForm in Entity reference 8

Implements EntityReferenceHandler::settingsForm().

Overrides SelectionInterface::settingsForm

File

lib/Drupal/entityreference/Plugin/entityreference/selection/SelectionBase.php, line 40

Definition of Drupal\entityreference\Plugin\entityreference\selection\SelectionBase.

Class

SelectionBase

Plugin implementation of the 'selection' entityreference.

Namespace

Drupal\entityreference\Plugin\entityreference\selection

Code

public static function settingsForm($field, $instance) {
  $entity_info = entity_get_info($field['settings']['target_type']);

  // Merge-in default values.
  $field['settings']['handler_settings'] += array(
    'target_bundles' => array(),
    'sort' => array(
      'type' => 'none',
    ),
  );
  if (!empty($entity_info['entity keys']['bundle'])) {
    $bundles = array();
    foreach ($entity_info['bundles'] as $bundle_name => $bundle_info) {
      $bundles[$bundle_name] = $bundle_info['label'];
    }
    $form['target_bundles'] = array(
      '#type' => 'checkboxes',
      '#title' => t('Target bundles'),
      '#options' => $bundles,
      '#default_value' => $field['settings']['handler_settings']['target_bundles'],
      '#size' => 6,
      '#multiple' => TRUE,
      '#description' => t('The bundles of the entity type that can be referenced. Optional, leave empty for all bundles.'),
      '#element_validate' => array(
        '_entityreference_element_validate_filter',
      ),
    );
  }
  else {
    $form['target_bundles'] = array(
      '#type' => 'value',
      '#value' => array(),
    );
  }
  $form['sort']['type'] = array(
    '#type' => 'select',
    '#title' => t('Sort by'),
    '#options' => array(
      'none' => t("Don't sort"),
      'property' => t('A property of the base table of the entity'),
      'field' => t('A field attached to this entity'),
    ),
    '#ajax' => TRUE,
    '#limit_validation_errors' => array(),
    '#default_value' => $field['settings']['handler_settings']['sort']['type'],
  );
  $form['sort']['settings'] = array(
    '#type' => 'container',
    '#attributes' => array(
      'class' => array(
        'entityreference-settings',
      ),
    ),
    '#process' => array(
      '_entityreference_form_process_merge_parent',
    ),
  );
  if ($field['settings']['handler_settings']['sort']['type'] == 'property') {

    // Merge-in default values.
    $field['settings']['handler_settings']['sort'] += array(
      'property' => NULL,
    );
    $form['sort']['settings']['property'] = array(
      '#type' => 'select',
      '#title' => t('Sort property'),
      '#required' => TRUE,
      '#options' => drupal_map_assoc($entity_info['schema_fields_sql']['base table']),
      '#default_value' => $field['settings']['handler_settings']['sort']['property'],
    );
  }
  elseif ($field['settings']['handler_settings']['sort']['type'] == 'field') {

    // Merge-in default values.
    $field['settings']['handler_settings']['sort'] += array(
      'field' => NULL,
    );
    $fields = array();
    foreach (field_info_instances($field['settings']['target_type']) as $bundle_name => $bundle_instances) {
      foreach ($bundle_instances as $instance_name => $instance_info) {
        $field_info = field_info_field($instance_name);
        foreach ($field_info['columns'] as $column_name => $column_info) {
          $fields[$instance_name . ':' . $column_name] = t('@label (column @column)', array(
            '@label' => $instance_info['label'],
            '@column' => $column_name,
          ));
        }
      }
    }
    $form['sort']['settings']['field'] = array(
      '#type' => 'select',
      '#title' => t('Sort field'),
      '#required' => TRUE,
      '#options' => $fields,
      '#default_value' => $field['settings']['handler_settings']['sort']['field'],
    );
  }
  if ($field['settings']['handler_settings']['sort']['type'] != 'none') {

    // Merge-in default values.
    $field['settings']['handler_settings']['sort'] += array(
      'direction' => 'ASC',
    );
    $form['sort']['settings']['direction'] = array(
      '#type' => 'select',
      '#title' => t('Sort direction'),
      '#required' => TRUE,
      '#options' => array(
        'ASC' => t('Ascending'),
        'DESC' => t('Descending'),
      ),
      '#default_value' => $field['settings']['handler_settings']['sort']['direction'],
    );
  }
  return $form;
}