Same name in other branches

1. 8.9.x core/modules/field_ui/src/Form/FieldStorageAddForm.php \Drupal\field_ui\Form\FieldStorageAddForm::fieldNameExists()
2. 10 core/modules/field_ui/src/Form/FieldStorageAddForm.php \Drupal\field_ui\Form\FieldStorageAddForm::fieldNameExists()
3. 11.x core/modules/field_ui/src/Form/FieldStorageAddForm.php \Drupal\field_ui\Form\FieldStorageAddForm::fieldNameExists()

Checks if a field machine name is taken.

Parameters

string $value: The machine name, not prefixed.

array $element: An array containing the structure of the 'field_name' element.

\Drupal\Core\Form\FormStateInterface $form_state: The current state of the form.

Return value

bool Whether or not the field machine name is taken.

File

core/modules/field_ui/src/Form/FieldStorageAddForm.php, line 574

Class

FieldStorageAddForm

Provides a form for the "field storage" add page.

Namespace

Drupal\field_ui\Form

Code

public function fieldNameExists($value, $element, FormStateInterface $form_state) {
    // Don't validate the case when an existing field has been selected.
    if ($form_state->getValue('existing_storage_name')) {
        return FALSE;
    }
    // Add the field prefix.
    $field_name = $this->configFactory
        ->get('field_ui.settings')
        ->get('field_prefix') . $value;
    $field_storage_definitions = $this->entityFieldManager
        ->getFieldStorageDefinitions($this->entityTypeId);
    return isset($field_storage_definitions[$field_name]);
}

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