Machine Name Widget

Widget for a Machine Name form element.

Machine Name Widget provides a field for the machine_name render element. This module does not provide a UI for configuring the widget, but rather is intended to be used by other modules (i.e. content entities).

Setup

The widget accepts the same configuration as machine_name. Simply use the type machine_name and pass the same config into settings.

Example

Here's an example from Colossal Menu:

$fields['machine_name'] = BaseFieldDefinition::create('string')
  ->setLabel(t('Machine name'))
  ->setDescription(t('Machine name of the menu link'))
  ->setRequired(TRUE)
  ->setSetting('max_length', 255)
  ->addConstraint('UniqueField', [])
  ->setDisplayOptions('form', [
    'type' => 'machine_name',
    'weight' => -4,
    'settings' => [
      'source' => [
        'title',
        'widget',
        0,
        'value',
      ],
      'exists' => 'Drupalcolossal_menuEntityLink::loadByMachineName',
    ],
  ]);