eav_field-2.x-dev/src/Form/EavAttributeValueFormatterSettingsForm.php

<?php

namespace Drupal\eav_field\Form;

use Drupal\Component\Utility\NestedArray;
use Drupal\Core\Field\FormatterPluginManager;
use Drupal\Core\Form\FormBase;
use Drupal\Core\Form\FormStateInterface;
use Drupal\eav_field\Entity\EavAttributeInterface;

class EavAttributeValueFormatterSettingsForm extends FormBase {

  /**
   * {@inheritDoc}
   */
  public function getFormId(): string {
    return 'eav_attribute_value_formatter_settings_form';
  }

  /**
   * {@inheritDoc}
   */
  public function buildForm(array $form, FormStateInterface $form_state, EavAttributeInterface $eav_attribute = NULL): array {
    $form['#title'] = $this->t('Formatter settings of attribute "@attribute"', ['@attribute' => $eav_attribute->getAdministrativeLabel()]);

    if ($eav_attribute->getValueFormatterType()) {
      $field_definition = $eav_attribute->configureValueFieldDefinition();
      $formatter_manager = \Drupal::service('plugin.manager.field.formatter'); /** @var FormatterPluginManager $formatter_manager */
      $formater = $formatter_manager->getInstance([
        'field_definition' => $field_definition,
        'view_mode' => 'full',
        'configuration' => [
          'type' => $eav_attribute->getValueFormatterType(),
          'settings' => $eav_attribute->getValueFormatterSettings(),
        ],
      ]);

      if ($formatter_settings_form = $formater->settingsForm($form, $form_state)) {
        $form['formatter_settings'] = [
          '#tree' => TRUE,
          '#parents' => ['fields', $eav_attribute->getValueFieldName(), 'settings_edit_form', 'settings'],
        ];

        $form['formatter_settings'] += $formatter_settings_form;
      }
    }

    if (!isset($form['formatter_settings'])) {
      $form['empty'] = [
        '#markup' => $this->t('No settings.'),
      ];
    }

    $form['actions'] = [
      '#type' => 'actions',
    ];

    $form['actions']['submit'] = [
      '#type' => 'submit',
      '#value' => $this->t('Save'),
      '#button_type' => 'primary',
    ];

    return $form;
  }

  /**
   * {@inheritDoc}
   */
  public function submitForm(array &$form, FormStateInterface $form_state): void {
    $attribute = $form_state->getBuildInfo()['args'][0]; /** @var EavAttributeInterface $attribute */

    if (isset($form['formatter_settings'])) {
      $formatter_settings = NestedArray::getValue($form_state->getValues(), $form['formatter_settings']['#parents']);
      $attribute->set('value_formatter_settings', $formatter_settings);
      $attribute->save();
    }

    // Redirect to attributes list
    if ($this->getRequest()->query->get('operation') == 'add') {
      $this->messenger()->addMessage($this->t('Attribute "@attribute" added.', ['@attribute' => $attribute->label()]));
      $form_state->setRedirect('entity.eav_attribute.collection');
    }
    else {
      $this->messenger()->addMessage($this->t('Formatter settings saved.'));
    }
  }

}