如何在Drupal8中以编程方式创建实体引用字段

Question

我想使用我的自定义模块在Drupal 8中创建一个实体引用字段。就像有人点击Drupal页面上的链接一样，页面节点类型中会自动创建一个实体引用字段。

有人能帮我吗？

Answer 1

所以如果需要的话，我希望能更快地找到它。。。

创建字段存储：

if (!$field_storage = FieldStorageConfig::loadByName($entity_type, $field_name)) {
FieldStorageConfig::create([
'field_name' => $field_name,
'entity_type' => $entity_type,
'type' => $type,
'cardinality' => -1,
// Optional to target entity types.
'settings' => [
'target_type' => $entity_target_type, // Ex: node, taxonomy_term.
],
])->save();
}

创建字段：

FieldConfig::create([
'field_name' => $field_name,
'entity_type' => $entity_type,
'bundle' => $bundle,
'label' => $label,
'cardinality' => -1,
// Optional to target bundles.
'settings' => [
'handler' => 'default',
'handler_settings' => [
'target_bundles' => [
$vid1,
$vid2,
],
],
],
])->save();

Answer 2

这将为具有article捆绑包的node内容类型创建一个实体引用字段。

$form['node_id'] = array(
'#type' => 'entity_autocomplete',
'#title' => $this->t('Node'),
'#target_type' => 'node',
'#selection_settings' => ['target_bundles' => ['article']],
'#tags' => TRUE,
'#size' => 30,
'#maxlength' => 1024,
);

请注意，您可以为taxonomy_term等其他实体更改target_type。

Answer 3

$node = new stdClass();
$node->title = "YOUR TITLE";
$node->type = "YOUR_NODE_TYPE";
....
$node->field_customer_nid[$node->language][]['target_id'] =    $form_state['values']['entity id'];

...
node_submit($node);
node_save($node);

Answer 4

您可以从https://api.drupal.org/api/drupal/core！lib！Drupal！果心实体插件！数据类型！EntityReference.php/8

或者您也可以下载示例实体示例https://www.drupal.org/project/examples

或者你也可以使用我的方法，如下所示：

设置模块content_entity_example.info.yml

name: Content Entity Example
type: module
description: 'Provides ContentEntityExampleContact entity.'
package: Example modules
core: 8.x
# These modules are required by the tests, must be available at bootstrap time
dependencies:
- options
- entity_reference
- examples

在Drupal 8 中创建内容实体类型

我们将创建一个"联系人"实体来添加、编辑和删除联系人。它是完全可部署的，并使用了Drupal8中提供的大多数新实体概念。

路由content_entity_example.routing.yml

# This file brings everything together. Very nifty!
# Route name can be used in sevaral place (links, redirects, local actions etc.)
entity.content_entity_example_contact.canonical:
path: '/content_entity_example_contact/{content_entity_example_contact}'
defaults:
# Calls the view controller, defined in the annotation of the contact entity
_entity_view: 'content_entity_example_contact'
_title: 'Contact Content'
requirements:
# Calls the access controller of the entity, $operation 'view'
_entity_access: 'content_entity_example_contact.view'
entity.content_entity_example_contact.collection:
path: '/content_entity_example_contact/list'
defaults:
# Calls the list controller, defined in the annotation of the contact entity.
_entity_list: 'content_entity_example_contact'
_title: 'Contact List'
requirements:
# Checks for permission directly.
_permission: 'view contact entity'
content_entity_example.contact_add:
path: '/content_entity_example_contact/add'
defaults:
# Calls the form.add controller, defined in the contact entity.
_entity_form: content_entity_example_contact.add
_title: 'Add Contact'
requirements:
_entity_create_access: 'content_entity_example_contact'
entity.content_entity_example_contact.edit_form:
path: '/content_entity_example_contact/{content_entity_example_contact}/edit'
defaults:
# Calls the form.edit controller, defined in the contact entity.
_entity_form: content_entity_example_contact.edit
_title: 'Edit Contact'
requirements:
_entity_access: 'content_entity_example_contact.edit'
entity.content_entity_example_contact.delete_form:
path: '/contact/{content_entity_example_contact}/delete'
defaults:
# Calls the form.delete controller, defined in the contact entity.
_entity_form: content_entity_example_contact.delete
_title: 'Delete Contact'
requirements:
_entity_access: 'content_entity_example_contact.delete'
content_entity_example.contact_settings:
path: 'admin/structure/content_entity_example_contact_settings'
defaults:
_form: 'Drupalcontent_entity_exampleFormContactSettingsForm'
_title: 'Contact Settings'
requirements:
_permission: 'administer contact entity'

实体注释的"链接"部分中定义的操作的路由名称必须遵循正确的模式。有关详细信息，请参阅下面的内容实体类。

content_entity_example.links.menu.yml

与路由文件结合使用，这将替换模块的hook_menu。

# Define the menu links for this module
entity.content_entity_example_contact.collection:
title: 'Content Entity Example: Contacts Listing'
route_name: entity.content_entity_example_contact.collection
description: 'List Contacts'
weight: 10
content_entity_example_contact.admin.structure.settings:
title: Contact Settings
description: 'Configure Contact entity'
route_name:  content_entity_example.contact_settings
parent: system.admin_structure

content_entity_example.links.action.yml

# All action links for this module
content_entity_example.contact_add:
# Which route will be called by the link
route_name: content_entity_example.contact_add
title: 'Add Contact'
# Where will the link appear, defined by route name.
appears_on:
- entity.content_entity_example_contact.collection
- entity.content_entity_example_contact.canonical