flexiform-8.x-1.x-dev/flexiform.install

<?php

/**
 * @file
 * Install, update and uninstall functions for the flexiform module.
 */

/**
 * Implements hook_install().
 */
function flexiform_install() {
  $manager = \Drupal::entityDefinitionUpdateManager();

  // Get hold of our user type definition.
  $entity_form_display_type = $manager->getEntityType('entity_form_display');

  // Change the class.
  $entity_form_display_type->setClass('Drupal\flexiform\FlexiformEntityFormDisplay');
  $entity_form_display_type->setFormClass('edit', 'Drupal\flexiform\Form\FlexiformEntityFormDisplayEditForm');
  $manager->updateEntityType($entity_form_display_type);
}

/**
 * Implements hook_uninstall().
 */
function flexiform_uninstall() {
  $manager = \Drupal::entityDefinitionUpdateManager();

  // Get hold of our user type definition.
  $entity_form_display_type = $manager->getEntityType('entity_form_display');

  // Change the class.
  $entity_form_display_type->setClass('Drupal\Core\Entity\Entity\EntityFormDisplay');
  $entity_form_display_type->setFormClass('edit', 'Drupal\field_ui\Form\EntityFormDisplayEditForm');
  $manager->updateEntityType($entity_form_display_type);
}