public function RadioactivityReferenceItem::storageSettingsForm in Radioactivity 4.0.x

Returns a form for the storage-level settings.

Invoked from \Drupal\field_ui\Form\FieldStorageConfigEditForm to allow administrators to configure storage-level settings.

Field storage might reject settings changes that affect the field storage schema if the storage already has data. When the $has_data parameter is TRUE, the form should not allow changing the settings that take part in the schema() method. It is recommended to set #access to FALSE on the corresponding elements.

Parameters

array $form: The form where the settings form is being included in.

\Drupal\Core\Form\FormStateInterface $form_state: The form state of the (entire) configuration form.

bool $has_data: TRUE if the field already has data, FALSE if not.

Return value

array The form definition for the field settings.

Overrides EntityReferenceItem::storageSettingsForm

File

src/Plugin/Field/FieldType/RadioactivityReferenceItem.php, line 75

Class

RadioactivityReferenceItem

Plugin implementation of the Radioactivity Reference field type.

Namespace

Drupal\radioactivity\Plugin\Field\FieldType

Code

public function storageSettingsForm(array &$form, FormStateInterface $form_state, $has_data) {
  $elements = parent::storageSettingsForm($form, $form_state, $has_data);
  $elements['target_type']['#access'] = FALSE;
  $elements['profile'] = [
    '#type' => 'radios',
    '#title' => $this
      ->t('Energy profile'),
    '#default_value' => $this
      ->getSetting('profile'),
    '#required' => TRUE,
    '#options' => [
      'count' => 'Count',
      'linear' => 'Linear',
      'decay' => 'Decay',
    ],
    '#description' => $this
      ->t('Count: Energy increases by 1 with each view. Never decreases.<br/>
Linear: Energy increases by the emission amount. Decreases by 1 per second.<br/>
Decay: Energy increases by the emission amount. Decreases 50% per half-life time.'),
  ];
  $elements['granularity'] = [
    '#type' => 'number',
    '#title' => $this
      ->t('Granularity'),
    '#min' => 1,
    '#default_value' => $this
      ->getSetting('granularity'),
    '#description' => $this
      ->t('The time in seconds that the energy levels are kept before applying the decay.'),
    '#states' => [
      'visible' => [
        'input[name="settings[profile]"]' => [
          [
            'value' => 'linear',
          ],
          [
            'value' => 'decay',
          ],
        ],
      ],
    ],
  ];
  $elements['halflife'] = [
    '#type' => 'number',
    '#title' => $this
      ->t('Half-life time'),
    '#min' => 1,
    '#default_value' => $this
      ->getSetting('halflife'),
    '#description' => $this
      ->t('The time in seconds in which the energy level halves.'),
    '#states' => [
      'visible' => [
        'input[name="settings[profile]"]' => [
          'value' => 'decay',
        ],
      ],
    ],
  ];
  $elements['cutoff'] = [
    '#type' => 'textfield',
    '#title' => $this
      ->t('Cutoff'),
    '#pattern' => '[0-9]+(\\.[0-9]+)?',
    '#size' => 20,
    '#default_value' => $this
      ->getSetting('cutoff'),
    '#description' => $this
      ->t('Energy levels under this value is set to zero. Example: 0.5, 2.'),
    '#states' => [
      'invisible' => [
        'input[name="settings[profile]"]' => [
          'value' => 'count',
        ],
      ],
    ],
  ];
  return $elements;
}