Issue #3043330 by acbramley, nterbogt, phenaproxima, Sam152, tim.plunkett,...

Issue #3043330 by acbramley, nterbogt, phenaproxima, Sam152, tim.plunkett, quietone, smustgrave, jibran, larowlan, azinck, catch, alexpott, tedbow, kim.pepper: Reduce the number of field blocks created for entities (possibly to zero)

core/modules/layout_builder/config/install/layout_builder.settings.yml

+expose_all_field_blocks: false

core/modules/layout_builder/config/schema/layout_builder.schema.yml

@@ -86,3 +86,11 @@ layout_plugin.settings.layout_twocol_section:
 
 layout_plugin.settings.layout_threecol_section:
   type: layout_builder_multi_width
+
+layout_builder.settings:
+  type: config_object
+  label: 'Layout builder settings'
+  mapping:
+    expose_all_field_blocks:
+      type: boolean
+      label: 'Expose all field blocks'

core/modules/layout_builder/layout_builder.info.yml

 name: 'Layout Builder'
 type: module
 description: 'Allows users to add and arrange blocks and content fields directly on the content.'
+configure: layout_builder.settings
 package: Core
 version: VERSION
 dependencies:

core/modules/layout_builder/layout_builder.links.menu.yml

+layout_builder.settings:
+  title: 'Layout Builder'
+  parent: system.admin_config_content
+  description: 'Configure Layout Builder settings.'
+  route_name: layout_builder.settings

core/modules/layout_builder/layout_builder.permissions.yml

+administer layout builder:
+  title: 'Administer layout builder'
+  restrict access: true
 configure any layout:
   title: 'Configure any layout'
   restrict access: true

core/modules/layout_builder/layout_builder.post_update.php

@@ -69,3 +69,12 @@ function layout_builder_post_update_timestamp_formatter(array &$sandbox = NULL):
     return $update;
   });
 }
+
+/**
+ * Configure the default expose all fields setting.
+ */
+function layout_builder_post_update_default_expose_field_block_setting(): void {
+  \Drupal::configFactory()->getEditable('layout_builder.settings')
+    ->set('expose_all_field_blocks', TRUE)
+    ->save(TRUE);
+}

core/modules/layout_builder/layout_builder.routing.yml

+layout_builder.settings:
+  path: '/admin/config/content/layout-builder'
+  defaults:
+    _form: '\Drupal\layout_builder\Form\LayoutBuilderSettingsForm'
+    _title: 'Layout Builder'
+  requirements:
+    _permission: 'administer layout builder'
+
 layout_builder.choose_section:
   path: '/layout_builder/choose/section/{section_storage_type}/{section_storage}/{delta}'
   defaults:

core/modules/layout_builder/layout_builder.services.yml

@@ -68,3 +68,6 @@ services:
   layout_builder.element.prepare_layout:
     class: Drupal\layout_builder\EventSubscriber\PrepareLayout
     arguments: ['@layout_builder.tempstore_repository', '@messenger']
+  layout_builder.config_subscriber:
+    class: Drupal\layout_builder\EventSubscriber\LayoutBuilderConfigSubscriber
+    arguments: ['@plugin.manager.block']

core/modules/layout_builder/src/Entity/LayoutBuilderEntityViewDisplay.php

@@ -159,6 +159,19 @@ public function preSave(EntityStorageInterface $storage) {
     }
   }
 
+  /**
+   * {@inheritdoc}
+   */
+  public function save(): int {
+    $return = parent::save();
+    if (!\Drupal::config('layout_builder.settings')->get('expose_all_field_blocks')) {
+      // Invalidate the block cache in order to regenerate field block
+      // definitions.
+      \Drupal::service('plugin.manager.block')->clearCachedDefinitions();
+    }
+    return $return;
+  }
+
   /**
    * Removes a layout section field if it is no longer needed.
    *

core/modules/layout_builder/src/EventSubscriber/LayoutBuilderConfigSubscriber.php

+<?php
+
+declare(strict_types=1);
+
+namespace Drupal\layout_builder\EventSubscriber;
+
+use Drupal\Core\Block\BlockManagerInterface;
+use Drupal\Core\Config\ConfigCrudEvent;
+use Drupal\Core\Config\ConfigEvents;
+use Symfony\Component\EventDispatcher\EventSubscriberInterface;
+
+/**
+ * Layout Builder Config subscriber.
+ */
+final class LayoutBuilderConfigSubscriber implements EventSubscriberInterface {
+
+  /**
+   * Constructs a LayoutBuilderConfigSubscriber.
+   */
+  public function __construct(
+    protected BlockManagerInterface $blockManager,
+  ) {
+  }
+
+  /**
+   * Clears the block plugin cache when expose_all_field_blocks changes.
+   *
+   * @param \Drupal\Core\Config\ConfigCrudEvent $event
+   *   The configuration event.
+   */
+  public function onConfigSave(ConfigCrudEvent $event): void {
+    $saved_config = $event->getConfig();
+    if ($saved_config->getName() == 'layout_builder.settings' && $event->isChanged('expose_all_field_blocks')) {
+      $this->blockManager->clearCachedDefinitions();
+    }
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public static function getSubscribedEvents(): array {
+    $events[ConfigEvents::SAVE][] = ['onConfigSave'];
+    return $events;
+  }
+
+}

core/modules/layout_builder/src/Form/LayoutBuilderSettingsForm.php

+<?php
+
+declare(strict_types=1);
+
+namespace Drupal\layout_builder\Form;
+
+use Drupal\Core\Form\ConfigFormBase;
+use Drupal\Core\Form\FormStateInterface;
+use Drupal\Core\Form\RedundantEditableConfigNamesTrait;
+
+/**
+ * Configure layout builder settings for this site.
+ *
+ * @internal
+ */
+final class LayoutBuilderSettingsForm extends ConfigFormBase {
+
+  use RedundantEditableConfigNamesTrait;
+
+  /**
+   * {@inheritdoc}
+   */
+  public function getFormId(): string {
+    return 'layout_builder_settings';
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function buildForm(array $form, FormStateInterface $form_state): array {
+    $form['expose_all_field_blocks'] = [
+      '#type' => 'checkbox',
+      '#title' => $this->t('Expose all fields as blocks to layout builder'),
+      '#description' => $this->t('When enabled, this setting exposes all fields for all entity view displays.<br/> When disabled, only entity type bundles that have layout builder enabled will have their fields exposed.<br/> Enabling this setting could <strong>significantly decrease performance</strong> on sites with a large number of entity types and bundles.'),
+      '#config_target' => 'layout_builder.settings:expose_all_field_blocks',
+    ];
+    return parent::buildForm($form, $form_state);
+  }
+
+}

core/modules/layout_builder/src/Plugin/Derivative/ExtraFieldBlockDeriver.php

@@ -4,6 +4,7 @@
 
 use Drupal\Component\Plugin\Derivative\DeriverBase;
 use Drupal\Component\Plugin\PluginBase;
+use Drupal\Core\Config\ConfigFactoryInterface;
 use Drupal\Core\Entity\EntityFieldManagerInterface;
 use Drupal\Core\Entity\EntityTypeBundleInfoInterface;
 use Drupal\Core\Entity\EntityTypeManagerInterface;
@@ -63,8 +64,16 @@ class ExtraFieldBlockDeriver extends DeriverBase implements ContainerDeriverInte
    *   The entity type bundle info.
    * @param \Drupal\Core\Entity\EntityTypeRepositoryInterface $entity_type_repository
    *   The entity type repository.
+   * @param \Drupal\Core\Config\ConfigFactoryInterface $configFactory
+   *   The config factory.
    */
-  public function __construct(EntityFieldManagerInterface $entity_field_manager, EntityTypeManagerInterface $entity_type_manager, EntityTypeBundleInfoInterface $entity_type_bundle_info, EntityTypeRepositoryInterface $entity_type_repository) {
+  public function __construct(
+    EntityFieldManagerInterface $entity_field_manager,
+    EntityTypeManagerInterface $entity_type_manager,
+    EntityTypeBundleInfoInterface $entity_type_bundle_info,
+    EntityTypeRepositoryInterface $entity_type_repository,
+    protected ConfigFactoryInterface $configFactory,
+  ) {
     $this->entityFieldManager = $entity_field_manager;
     $this->entityTypeManager = $entity_type_manager;
     $this->entityTypeBundleInfo = $entity_type_bundle_info;
@@ -79,7 +88,8 @@ public static function create(ContainerInterface $container, $base_plugin_id) {
       $container->get('entity_field.manager'),
       $container->get('entity_type.manager'),
       $container->get('entity_type.bundle.info'),
-      $container->get('entity_type.repository')
+      $container->get('entity_type.repository'),
+      $container->get('config.factory')
     );
   }
 
@@ -88,14 +98,26 @@ public static function create(ContainerInterface $container, $base_plugin_id) {
    */
   public function getDerivativeDefinitions($base_plugin_definition) {
     $entity_type_labels = $this->entityTypeRepository->getEntityTypeLabels();
+    $enabled_bundle_ids = $this->bundleIdsWithLayoutBuilderDisplays();
+    $expose_all_fields = $this->configFactory->get('layout_builder.settings')->get('expose_all_field_blocks');
     foreach ($this->entityTypeManager->getDefinitions() as $entity_type_id => $entity_type) {
       // Only process fieldable entity types.
       if (!$entity_type->entityClassImplements(FieldableEntityInterface::class)) {
         continue;
       }
 
+      // If not loading everything, skip entity types that aren't included.
+      if (!$expose_all_fields && !isset($enabled_bundle_ids[$entity_type_id])) {
+        continue;
+      }
+
       $bundles = $this->entityTypeBundleInfo->getBundleInfo($entity_type_id);
       foreach ($bundles as $bundle_id => $bundle) {
+        // If not loading everything, skip bundle types that aren't included.
+        if (!$expose_all_fields && !isset($enabled_bundle_ids[$entity_type_id][$bundle_id])) {
+          continue;
+        }
+
         $extra_fields = $this->entityFieldManager->getExtraFields($entity_type_id, $bundle_id);
         // Skip bundles without any extra fields.
         if (empty($extra_fields['display'])) {
@@ -123,4 +145,23 @@ public function getDerivativeDefinitions($base_plugin_definition) {
     return $this->derivatives;
   }
 
+  /**
+   * Gets a list of entity type and bundle tuples that have layout builder enabled.
+   *
+   * @return array
+   *   A structured array with entity type as first key, bundle as second.
+   */
+  protected function bundleIdsWithLayoutBuilderDisplays(): array {
+    /** @var \Drupal\layout_builder\Entity\LayoutEntityDisplayInterface[] $displays */
+    $displays = $this->entityTypeManager->getStorage('entity_view_display')->loadByProperties([
+      'third_party_settings.layout_builder.enabled' => TRUE,
+    ]);
+    $layout_bundles = [];
+    foreach ($displays as $display) {
+      $bundle = $display->getTargetBundle();
+      $layout_bundles[$display->getTargetEntityTypeId()][$bundle] = $bundle;
+    }
+    return $layout_bundles;
+  }
+
 }

core/modules/layout_builder/src/Plugin/Derivative/FieldBlockDeriver.php

@@ -4,6 +4,8 @@
 
 use Drupal\Component\Plugin\Derivative\DeriverBase;
 use Drupal\Component\Plugin\PluginBase;
+use Drupal\Core\Config\ConfigFactoryInterface;
+use Drupal\Core\Config\Entity\ConfigEntityStorageInterface;
 use Drupal\Core\Entity\EntityFieldManagerInterface;
 use Drupal\Core\Entity\EntityTypeRepositoryInterface;
 use Drupal\Core\Field\FieldConfigInterface;
@@ -66,8 +68,19 @@ class FieldBlockDeriver extends DeriverBase implements ContainerDeriverInterface
    *   The field type manager.
    * @param \Drupal\Core\Field\FormatterPluginManager $formatter_manager
    *   The formatter manager.
+   * @param \Drupal\Core\Config\Entity\ConfigEntityStorageInterface $entityViewDisplayStorage
+   *   The entity view display storage.
+   * @param \Drupal\Core\Config\ConfigFactoryInterface $configFactory
+   *   The config factory.
    */
-  public function __construct(EntityTypeRepositoryInterface $entity_type_repository, EntityFieldManagerInterface $entity_field_manager, FieldTypePluginManagerInterface $field_type_manager, FormatterPluginManager $formatter_manager) {
+  public function __construct(
+    EntityTypeRepositoryInterface $entity_type_repository,
+    EntityFieldManagerInterface $entity_field_manager,
+    FieldTypePluginManagerInterface $field_type_manager,
+    FormatterPluginManager $formatter_manager,
+    protected ConfigEntityStorageInterface $entityViewDisplayStorage,
+    protected ConfigFactoryInterface $configFactory,
+  ) {
     $this->entityTypeRepository = $entity_type_repository;
     $this->entityFieldManager = $entity_field_manager;
     $this->fieldTypeManager = $field_type_manager;
@@ -82,7 +95,9 @@ public static function create(ContainerInterface $container, $base_plugin_id) {
       $container->get('entity_type.repository'),
       $container->get('entity_field.manager'),
       $container->get('plugin.manager.field.field_type'),
-      $container->get('plugin.manager.field.formatter')
+      $container->get('plugin.manager.field.formatter'),
+      $container->get('entity_type.manager')->getStorage('entity_view_display'),
+      $container->get('config.factory')
     );
   }
 
@@ -91,7 +106,7 @@ public static function create(ContainerInterface $container, $base_plugin_id) {
    */
   public function getDerivativeDefinitions($base_plugin_definition) {
     $entity_type_labels = $this->entityTypeRepository->getEntityTypeLabels();
-    foreach ($this->entityFieldManager->getFieldMap() as $entity_type_id => $entity_field_map) {
+    foreach ($this->getFieldMap() as $entity_type_id => $entity_field_map) {
       foreach ($entity_field_map as $field_name => $field_info) {
         // Skip fields without any formatters.
         $options = $this->formatterManager->getOptions($field_info['type']);
@@ -142,4 +157,50 @@ public function getDerivativeDefinitions($base_plugin_definition) {
     return $this->derivatives;
   }
 
+  /**
+   * Returns the entity field map for deriving block definitions.
+   *
+   * @return array
+   *   The entity field map.
+   *
+   * @see \Drupal\Core\Entity\EntityFieldManagerInterface::getFieldMap()
+   */
+  protected function getFieldMap(): array {
+    $field_map = $this->entityFieldManager->getFieldMap();
+
+    // If all fields are exposed as field blocks, just return the field map
+    // without any further processing.
+    if ($this->configFactory->get('layout_builder.settings')->get('expose_all_field_blocks')) {
+      return $field_map;
+    }
+
+    // Load all entity view displays which are using Layout Builder.
+    /** @var \Drupal\layout_builder\Entity\LayoutEntityDisplayInterface[] $displays */
+    $displays = $this->entityViewDisplayStorage->loadByProperties([
+      'third_party_settings.layout_builder.enabled' => TRUE,
+    ]);
+    $layout_bundles = [];
+    foreach ($displays as $display) {
+      $bundle = $display->getTargetBundle();
+      $layout_bundles[$display->getTargetEntityTypeId()][$bundle] = $bundle;
+    }
+
+    // Process $field_map, removing any entity types which are not using Layout
+    // Builder.
+    $field_map = array_intersect_key($field_map, $layout_bundles);
+
+    foreach ($field_map as $entity_type_id => $fields) {
+      foreach ($fields as $field_name => $field_info) {
+        $field_map[$entity_type_id][$field_name]['bundles'] = array_intersect($field_info['bundles'], $layout_bundles[$entity_type_id]);
+
+        // If no bundles are using Layout Builder, remove this field from the
+        // field map.
+        if (empty($field_info['bundles'])) {
+          unset($field_map[$entity_type_id][$field_name]);
+        }
+      }
+    }
+    return $field_map;
+  }
+
 }

core/modules/layout_builder/tests/src/Functional/SettingsFormTest.php

+<?php
+
+declare(strict_types=1);
+
+namespace Drupal\Tests\layout_builder\Functional;
+
+use Drupal\Core\Url;
+use Drupal\Tests\BrowserTestBase;
+
+/**
+ * Tests the Layout Builder settings form.
+ *
+ * @coversDefaultClass \Drupal\layout_builder\Form\LayoutBuilderSettingsForm
+ * @group layout_builder
+ */
+class SettingsFormTest extends BrowserTestBase {
+
+  /**
+   * {@inheritdoc}
+   */
+  protected static $modules = ['layout_builder'];
+
+  /**
+   * {@inheritdoc}
+   */
+  protected $defaultTheme = 'stark';
+
+  /**
+   * Tests the Layout Builder settings form.
+   */
+  public function testSettingsForm(): void {
+    $this->drupalLogin($this->drupalCreateUser([
+      'access administration pages',
+      'administer layout builder',
+    ]));
+
+    $this->drupalGet(Url::fromRoute('layout_builder.settings'));
+    $this->assertSession()->statusCodeEquals(200);
+    $this->submitForm([
+      'expose_all_field_blocks' => 1,
+    ], 'Save configuration');
+
+    $this->assertSession()->pageTextContains('The configuration options have been saved');
+    $this->assertSession()->checkboxChecked('expose_all_field_blocks');
+    $this->submitForm([
+      'expose_all_field_blocks' => 0,
+    ], 'Save configuration');
+    $this->assertSession()->pageTextContains('The configuration options have been saved');
+    $this->assertSession()->checkboxNotChecked('expose_all_field_blocks');
+  }
+
+}

core/modules/layout_builder/tests/src/Functional/Update/LayoutBuilderSettingsUpdateTest.php

+<?php
+
+declare(strict_types=1);
+
+namespace Drupal\Tests\layout_builder\Functional\Update;
+
+use Drupal\FunctionalTests\Update\UpdatePathTestBase;
+
+/**
+ * Tests creation of layout_builder settings.
+ *
+ * @see layout_builder_post_update_default_expose_field_block_setting()
+ *
+ * @group Update
+ */
+class LayoutBuilderSettingsUpdateTest extends UpdatePathTestBase {
+
+  /**
+   * {@inheritdoc}
+   */
+  protected function setDatabaseDumpFiles() {
+    $this->databaseDumpFiles = [
+      __DIR__ . '/../../../../../system/tests/fixtures/update/drupal-9.4.0.bare.standard.php.gz',
+      __DIR__ . '/../../../fixtures/update/layout-builder.php',
+    ];
+  }
+
+  /**
+   * Tests layout_builder_post_update_default_expose_field_block_setting().
+   */
+  public function testLayoutBuilderPostUpdateExposeFieldBlockSetting(): void {
+    // Ensure config is not present.
+    $config = $this->config('layout_builder.settings');
+    $this->assertTrue($config->isNew());
+
+    $this->runUpdates();
+
+    // Ensure config is present and setting is enabled.
+    $updated_config = $this->config('layout_builder.settings');
+    $this->assertFalse($updated_config->isNew());
+    $this->assertTrue($updated_config->get('expose_all_field_blocks'));
+  }
+
+}

core/modules/layout_builder/tests/src/FunctionalJavascript/BlockFilterTest.php

@@ -37,6 +37,12 @@ class BlockFilterTest extends WebDriverTestBase {
   protected function setUp(): void {
     parent::setUp();
 
+    // This test makes assertions on lists of blocks, this includes a derived
+    // block from the user entity.
+    \Drupal::configFactory()->getEditable('layout_builder.settings')
+      ->set('expose_all_field_blocks', TRUE)
+      ->save();
+
     $this->drupalLogin($this->drupalCreateUser([
       'configure any layout',
     ]));

core/modules/layout_builder/tests/src/FunctionalJavascript/FieldBlockTest.php

@@ -40,6 +40,9 @@ class FieldBlockTest extends WebDriverTestBase {
   protected function setUp(): void {
     parent::setUp();
 
+    \Drupal::configFactory()->getEditable('layout_builder.settings')
+      ->set('expose_all_field_blocks', TRUE)
+      ->save();
     $field_storage = FieldStorageConfig::create([
       'field_name' => 'field_date',
       'entity_type' => 'user',

core/modules/layout_builder/tests/src/Kernel/FieldBlockDeriverTest.php

+<?php
+
+declare(strict_types=1);
+
+namespace Drupal\Tests\layout_builder\Kernel;
+
+use Drupal\KernelTests\Core\Entity\EntityKernelTestBase;
+use Drupal\layout_builder\Entity\LayoutBuilderEntityViewDisplay;
+
+/**
+ * Tests field block plugin derivatives.
+ *
+ * @group layout_builder
+ */
+class FieldBlockDeriverTest extends EntityKernelTestBase {
+
+  /**
+   * {@inheritdoc}
+   */
+  protected static $modules = [
+    'layout_builder',
+    'layout_discovery',
+  ];
+
+  /**
+   * Tests that field block derivers respect expose_all_field_blocks config.
+   *
+   * When expose_all_field_blocks is disabled (the default setting), only
+   * bundles that have layout builder enabled will expose their fields as
+   * field blocks.
+   */
+  public function testFieldBlockDerivers(): void {
+    $plugins = $this->getBlockPluginIds();
+    // Setting is disabled and entity_test bundles do not have layout builder
+    // configured.
+    $this->assertNotContains('field_block:user:user:name', $plugins);
+    $this->assertNotContains('extra_field_block:user:user:member_for', $plugins);
+    $this->assertNotContains('field_block:entity_test:entity_test:id', $plugins);
+
+    // Enabling layout builder for entity_test adds field blocks for entity_test
+    // bundles, but not for the user entity type.
+    $display = LayoutBuilderEntityViewDisplay::create([
+      'targetEntityType' => 'entity_test',
+      'bundle' => 'entity_test',
+      'mode' => 'default',
+      'status' => TRUE,
+      'third_party_settings' => [
+        'layout_builder' => [
+          'enabled' => TRUE,
+        ],
+      ],
+    ]);
+    $display->save();
+    $plugins = $this->getBlockPluginIds();
+    $this->assertContains('field_block:entity_test:entity_test:id', $plugins);
+    $this->assertNotContains('field_block:user:user:name', $plugins);
+    $this->assertNotContains('extra_field_block:user:user:member_for', $plugins);
+
+    // Exposing all field blocks adds them for the user entity type.
+    \Drupal::configFactory()->getEditable('layout_builder.settings')
+      ->set('expose_all_field_blocks', TRUE)
+      ->save();
+    $plugins = $this->getBlockPluginIds();
+    $this->assertContains('field_block:user:user:name', $plugins);
+    $this->assertContains('extra_field_block:user:user:member_for', $plugins);
+  }
+
+  /**
+   * Get an uncached list of block plugin IDs.
+   *
+   * @return array
+   *   A list of block plugin IDs.
+   */
+  private function getBlockPluginIds(): array {
+    return \array_keys(\Drupal::service('plugin.manager.block')->getDefinitions());
+  }
+
+}