public function FieldConfigCloneForm::form in Field tools 8

Gets the actual form array to be built.

Overrides EntityForm::form

See also

\Drupal\Core\Entity\EntityForm::processForm()

\Drupal\Core\Entity\EntityForm::afterBuild()

File

src/Form/FieldConfigCloneForm.php, line 70

Class

FieldConfigCloneForm

Provides a form for cloning a field.

Namespace

Drupal\field_tools\Form

Code

public function form(array $form, FormStateInterface $form_state) {
  $field_config = $this
    ->getEntity();
  $field_config_target_entity_type_id = $field_config
    ->getTargetEntityTypeId();
  $field_config_target_bundle = $field_config
    ->getTargetBundle();
  $form['#title'] = t("Clone field %field", [
    '%field' => $field_config
      ->getLabel(),
  ]);
  $form['destinations'] = [
    '#type' => 'checkboxes',
    '#title' => $this
      ->t("Bundles to clone this field to"),
    '#options' => $this
      ->getDestinationOptions($this->entityTypeManager, $this->entityTypeBundleInfo),
  ];

  // Get all the fields with the same name on the same entity type, to mark
  // their checkboxes as disabled.
  $field_ids = $this->entityTypeManager
    ->getStorage('field_config')
    ->getQuery()
    ->condition('field_name', $field_config
    ->getName())
    ->execute();
  $other_bundle_fields = $this->entityTypeManager
    ->getStorage('field_config')
    ->loadMultiple($field_ids);
  $other_bundles = [];
  foreach ($other_bundle_fields as $field) {
    $form_option_key = $field
      ->getTargetEntityTypeId() . '::' . $field
      ->getTargetBundle();
    if ($form_option_key == "{$field_config_target_entity_type_id}::{$field_config_target_bundle}") {

      // Mark the current bundle as disabled.
      $form['destinations'][$form_option_key]['#disabled'] = TRUE;
      $form['destinations'][$form_option_key]['#description'] = $this
        ->t("This is the current bundle.");
    }
    elseif ($field
      ->getType() == $field_config
      ->getType()) {

      // The other field's type is the same as the current field, so just
      // mark this bundle as unavailable because it already has the field.
      $form['destinations'][$form_option_key]['#disabled'] = TRUE;
      $form['destinations'][$form_option_key]['#description'] = $this
        ->t("The field is already on this bundle.");
    }
    else {

      // The other field is of a different type from the current field. This
      // bundle is not a valid destination, and furthermore, ALL bundles on
      // this entity type are invalid, because of the underlying field storage
      // which will have a different type.
      // $field->getTargetEntityTypeId()
      $other_entity_type_bundles = $this->entityTypeBundleInfo
        ->getBundleInfo($field
        ->getTargetEntityTypeId());
      foreach (array_keys($other_entity_type_bundles) as $other_bundle_name) {
        $form_option_key = $field
          ->getTargetEntityTypeId() . '::' . $other_bundle_name;
        $form['destinations'][$form_option_key]['#disabled'] = TRUE;
        $form['destinations'][$form_option_key]['#description'] = $this
          ->t("A field of a different type is already on this entity type.");
      }
    }
  }
  return $form;
}