function custom_add_another_form_field_storage_config_edit_form_alter in Custom add another 8

Implements hook_form_FORM_ID_alter().

Add a textbox for the 'custom_add_another' instance settings on the 'Edit field instance' form.

File

./custom_add_another.module, line 34

Allows the 'Add another item' button text to be customised.

Code

function custom_add_another_form_field_storage_config_edit_form_alter(&$form, FormStateInterface $form_state, $form_id) {

  /** @var \Drupal\field\FieldConfigInterface $field */
  $field = $form_state
    ->getStorage()['field_config'];

  /** @var \Drupal\field\FieldStorageConfigInterface $field_storage */
  $field_storage = $form_state
    ->getFormObject()
    ->getEntity();
  if (!$field_storage
    ->isLocked()) {
    $form['custom_add_another'] = [
      '#type' => 'textfield',
      '#title' => t('Custom add another item button'),
      '#description' => t("If the number of items in this field is set to 'Unlimited' then you might get a button that allows you to 'Add another item'. You may customise the text for that button here, an empty value will just use the default value for the button text."),
      '#default_value' => $field
        ->getThirdPartySetting('custom_add_another', 'custom_add_another'),
      // Hidden when the 'Number of values' is not unlimited.
      '#states' => [
        'visible' => [
          ':input[name="cardinality"]' => [
            'value' => FieldStorageDefinitionInterface::CARDINALITY_UNLIMITED,
          ],
        ],
      ],
    ];
    $form['custom_remove'] = [
      '#type' => 'textfield',
      '#title' => t('Custom remove button'),
      '#description' => t("If the number of items in this field is set to 'Unlimited' then you might get a button that allows you to 'Remove'. You may customise the text for that button here, an empty value will just use the default value for the button text."),
      // Add a hint for the empty value if hint module is around.
      '#hint' => t('Remove this item'),
      '#default_value' => $field
        ->getThirdPartySetting('custom_add_another', 'custom_remove'),
      // Hidden when the 'Number of values' is not unlimited.
      '#states' => [
        'visible' => [
          ':input[name="cardinality"]' => [
            'value' => FieldStorageDefinitionInterface::CARDINALITY_UNLIMITED,
          ],
        ],
      ],
    ];
    array_unshift($form['actions']['submit']['#submit'], 'custom_add_another_third_party_settings_submit');
  }
}