function fieldblock_form_field_ui_display_overview_form_alter in Field as Block 8

Same name and namespace in other branches

1. 7 fieldblock.module \fieldblock_form_field_ui_display_overview_form_alter()

Implements hook_form_alter().

Adds a column to the "display fields" table-form, with a checkbox for each field.

File

./fieldblock.module, line 18

Allow fields to be rendered in blocks.

Code

function fieldblock_form_field_ui_display_overview_form_alter(&$form, FormStateInterface &$form_state, $form_id) {
  $entity_type = $form['#entity_type'];
  $bundle = $form['#bundle'];
  $mode = $form['#mode'];

  /** @var \Drupal\Core\Entity\Display\EntityViewDisplayInterface $entity_view_display */
  $entity_view_display = EntityViewDisplay::load($entity_type . '.' . $bundle . '.' . $mode);

  // Add a column header.
  $form['fields']['#header'][] = t('Display as block');

  // Add checkboxes.
  $field_names = array_merge($form['#fields'], $form['#extra']);
  foreach ($field_names as $field_name) {
    $form['fields'][$field_name]['fieldblock'] = array(
      '#type' => 'checkbox',
      '#default_value' => $entity_view_display
        ->getThirdPartySetting('fieldblock', $field_name) ? true : false,
      '#title' => '',
    );
  }

  // Add a submit handler.
  $form['#submit'][] = 'fieldblock_field_display_submit';
}