i have:

 * @ContentEntityType(
 *   id = "my_entity",
 *   label = @Translation("drwywr werwer label"),
 *   bundle_label = @Translation("My entity type"),
 *   handlers = {
 *     bla...
 *     "form" = {
 *       "default" = "Drupal\my_entity\Form\MyEntityForm",
 *       "edit" = "Drupal\my_entity\Form\MyEntityForm",
 *       "delete" = "Drupal\Core\Entity\ContentEntityDeleteForm"
 *     },
 *     bla...
 *   },
 *   translatable = FALSE,
 *   entity_keys = { bla... },
 *   bundle_entity_type = "my_entity_type",
 *   links = {
 *     "collection" = "/admin/test/entity/collection",
 *     "canonical" = "/admin/test/entity/{my_entity}",
 *     "edit-form" = "/admin/test/entity/{my_entity}/edit",
 *     "delete-form" = "/admin/test/entity/{my_entity}/delete"
 *   }
 * )

based on above, how do i load my entity in form below:


namespace Drupal\my_entity\Form;

use bla...

 * Form controller for the node edit forms.
class MyEntityForm extends ContentEntityForm {
 //how to load my entity type here?

i tried a couple way but i keep receiving:

Error: Call to a member function getEntityTypeId() on null

mainly because the entity is not loaded (null value)

this is how i create the route:

in my_entity.routing.yml:

  - 'entity.my_entity.routes::routes'

in routes:

public function routes() {
// Build Entity Create Route - CREATE
  $route = new Route(
      (substr($type->getRoute()['path'], -1) == '/' ? $type->getRoute()['path'] . $type->id() : $type->getRoute()['path'] . '/' . $type->id()) . '/create',
        '_form' => '\Drupal\my_entity\Form\MyEntityForm', //TODO : not finish
        'entity_type' => 'my_entity',
        'bundle' => $type->id(),
        '_title' => 'Create ' . $type->getRoute()['label'],
      ['_permission' => 'entity admin settings']
  $route_collection->add('entity.my_entity.' . $type->id() . '_create', $route);

if you see in my content entity type config above, i have:

 *   links = {
 *     "collection" = "/admin/test/entity/collection",
 *     "canonical" = "/admin/test/entity/{my_entity}",
 *     "edit-form" = "/admin/test/entity/{my_entity}/edit",
 *     "delete-form" = "/admin/test/entity/{my_entity}/delete"
 *   }

which i want those: edit, delete to be able to 'link' with my form as well - how to do this?

what i'm trying to achieve is: to generate forms based on field define in my entity type

  • How is your route defined? Please add your definition to the question.
    – Eyal
    May 1, 2017 at 6:01
  • Also the form class (ArmEntityForm) is not mentioned in the form handlers section of the entity.
    – Eyal
    May 1, 2017 at 6:01
  • Sorry the class in my php snippet is MyEntityForm it is typo. I have fix it, the route is generated based on links in contententitytype config
    – AnD
    May 1, 2017 at 6:15
  • Please add the definition for the form route. I cannot help you if i can't see how you defined the route for the form.
    – Eyal
    May 1, 2017 at 6:46
  • Thanks @Eyal, I have updated my question above to explain how i build the route
    – AnD
    May 1, 2017 at 11:08

2 Answers 2


Your code currently loads the form with the _form routing definition. For classes extending ContentEntityForm, you have to use the _entity_form notation instead. Here is an example of an 'module_name.routing.yml' file:

  path: '/intranet/{my_entity}/something'
    _entity_form: 'my_entity.default'
    _title: 'Your page title'
        type: my_entity
    _permission: 'some permission defined in your module_name.permissions.yml file'

The _entity_form is composed of two parts: before the dot, you have the entity type id, in this example my_entity. Behind the dot, you have the name of the form, defined in the handlers section of the @ContentEntityType annotation. In this case, the second part is default, According to your question's code, this refers to \Drupal\my_entity\Form\MyEntityForm. You might not need the route_callbacks code, as a static routing directly in the yml file is probably enough.

For more details, see https://www.drupal.org/docs/8/api/routing-system/structure-of-routes.


You can take a look into core/modules/system/tests/modules/entity_test/src/EntityTestForm.php file.

And you can see that in the object that is an instance of ContentEntityForm it possible to get an entity object using $entity property:

$entity = $this->entity;
$entity = $this->getEntity();

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