Stop building show/list/form when accessing fieldDescription

src/Action/RetrieveAutocompleteItemsAction.php

@@ -184,8 +184,6 @@ private function retrieveFilterFieldDescription(
         AdminInterface $admin,
         string $field
     ): FieldDescriptionInterface {
-        $admin->getFilterFieldDescriptions();
-
         $fieldDescription = $admin->getFilterFieldDescription($field);
 
         if (!$fieldDescription) {
@@ -208,8 +206,6 @@ private function retrieveFormFieldDescription(
         AdminInterface $admin,
         string $field
     ): FieldDescriptionInterface {
-        $admin->getFormFieldDescriptions();
-
         $fieldDescription = $admin->getFormFieldDescription($field);
 
         if (!$fieldDescription) {

src/Admin/AbstractAdmin.php

@@ -399,10 +399,14 @@ abstract class AbstractAdmin implements AdminInterface, DomainObjectInterface, A
      * @var array<string, bool>
      */
     protected $loaded = [
-        'view_fields' => false,
-        'view_groups' => false,
+        'view_fields' => false, // NEXT_MAJOR: Remove this unused value.
+        'view_groups' => false, // NEXT_MAJOR: Remove this unused value.
         'routes' => false,
         'tab_menu' => false,
+        'show' => false,
+        'list' => false,
+        'form' => false,
+        'datagrid' => false,
     ];
 
     /**
@@ -845,12 +849,17 @@ public function getFilterParameters()
         return $parameters;
     }
 
+    /**
+     * NEXT_MAJOR: Change the visibility to protected (similar to buildShow, buildForm, ...).
+     */
     public function buildDatagrid()
     {
-        if ($this->datagrid) {
+        if ($this->loaded['datagrid']) {
             return;
         }
 
+        $this->loaded['datagrid'] = true;
+
         $filterParameters = $this->getFilterParameters();
 
         // transform _sort_by from a string to a FieldDescriptionInterface for the datagrid.
@@ -3255,10 +3264,12 @@ protected function configureTabMenu(ItemInterface $menu, $action, ?AdminInterfac
      */
     protected function buildShow()
     {
-        if ($this->show) {
+        if ($this->loaded['show']) {
             return;
         }
 
+        $this->loaded['show'] = true;
+
         $this->show = $this->getShowBuilder()->getBaseList();
         $mapper = new ShowMapper($this->getShowBuilder(), $this->show, $this);
 
@@ -3274,10 +3285,12 @@ protected function buildShow()
      */
     protected function buildList()
     {
-        if ($this->list) {
+        if ($this->loaded['list']) {
             return;
         }
 
+        $this->loaded['list'] = true;
+
         $this->list = $this->getListBuilder()->getBaseList();
         $mapper = new ListMapper($this->getListBuilder(), $this->list, $this);
 
@@ -3333,10 +3346,12 @@ protected function buildList()
      */
     protected function buildForm()
     {
-        if ($this->form) {
+        if ($this->loaded['form']) {
             return;
         }
 
+        $this->loaded['form'] = true;
+
         // append parent object if any
         // todo : clean the way the Admin class can retrieve set the object
         if ($this->isChild() && $this->getParentAssociationMapping()) {

src/Admin/AdminInterface.php

@@ -33,18 +33,19 @@
 /**
  * @author Thomas Rabaix <[email protected]>
  *
- * @method array  configureActionButtons(string $action, ?object $object = null)
- * @method string getSearchResultLink(object $object)
- * @method void   showMosaicButton(bool $isShown)
- * @method bool   isDefaultFilter(string $name)
- * @method bool   isCurrentRoute(string $name, ?string $adminCode)
- * @method bool   canAccessObject(string $action, object $object)
- * @method mixed  getPersistentParameter(string $name)
- * @method array            getExportFields
- * @method array            getSubClasses
- * @method AdminInterface   getRoot
- * @method string           getRootCode
- * @method array getActionButtons(string $action, ?object $object)
+ * @method array                           configureActionButtons(string $action, ?object $object = null)
+ * @method string                          getSearchResultLink(object $object)
+ * @method void                            showMosaicButton(bool $isShown)
+ * @method bool                            isDefaultFilter(string $name)
+ * @method bool                            isCurrentRoute(string $name, ?string $adminCode)
+ * @method bool                            canAccessObject(string $action, object $object)
+ * @method mixed                           getPersistentParameter(string $name)
+ * @method array                           getExportFields()
+ * @method array                           getSubClasses()
+ * @method AdminInterface                  getRoot()
+ * @method string                          getRootCode()
+ * @method array                           getActionButtons(string $action, ?object $object)
+ * @method FieldDescriptionCollection|null getList()
  */
 interface AdminInterface extends AccessRegistryInterface, FieldDescriptionRegistryInterface, LifecycleHookProviderInterface, MenuBuilderInterface, ParentAdminInterface, UrlGeneratorInterface
 {
@@ -270,6 +271,9 @@ public function getValidator();
      */
     public function getShow();
 
+//    NEXT_MAJOR: uncomment this method in 4.0
+//    public function getList(): ?FieldDescriptionCollection;
+
     public function setFormTheme(array $formTheme);
 
     /**
@@ -360,6 +364,8 @@ public function setSubject($subject);
     public function getSubject();
 
     /**
+     * NEXT_MAJOR: Remove this method, since it's already in FieldDescriptionRegistryInterface.
+     *
      * Returns a list FieldDescription.
      *
      * @param string $name
@@ -369,6 +375,8 @@ public function getSubject();
     public function getListFieldDescription($name);
 
     /**
+     * NEXT_MAJOR: Remove this method, since it's already in FieldDescriptionRegistryInterface.
+     *
      * Returns true if the list FieldDescription exists.
      *
      * @param string $name
@@ -378,6 +386,8 @@ public function getListFieldDescription($name);
     public function hasListFieldDescription($name);
 
     /**
+     * NEXT_MAJOR: Remove this method, since it's already in FieldDescriptionRegistryInterface.
+     *
      * Returns the collection of list FieldDescriptions.
      *
      * @return array
@@ -542,13 +552,17 @@ public function setShowGroups(array $showGroups);
     public function reorderShowGroup($group, array $keys);
 
     /**
+     * NEXT_MAJOR: Remove this method, since it's already in FieldDescriptionRegistryInterface.
+     *
      * add a FieldDescription.
      *
      * @param string $name
      */
     public function addFormFieldDescription($name, FieldDescriptionInterface $fieldDescription);
 
     /**
+     * NEXT_MAJOR: Remove this method, since it's already in FieldDescriptionRegistryInterface.
+     *
      * Remove a FieldDescription.
      *
      * @param string $name

tests/Admin/AdminTest.php

@@ -43,6 +43,11 @@
 use Sonata\AdminBundle\Security\Handler\AclSecurityHandlerInterface;
 use Sonata\AdminBundle\Security\Handler\SecurityHandlerInterface;
 use Sonata\AdminBundle\Templating\MutableTemplateRegistryInterface;
+use Sonata\AdminBundle\Tests\App\Builder\DatagridBuilder;
+use Sonata\AdminBundle\Tests\App\Builder\FormContractor;
+use Sonata\AdminBundle\Tests\App\Builder\ListBuilder;
+use Sonata\AdminBundle\Tests\App\Builder\ShowBuilder;
+use Sonata\AdminBundle\Tests\Fixtures\Admin\AvoidInfiniteLoopAdmin;
 use Sonata\AdminBundle\Tests\Fixtures\Admin\CommentAdmin;
 use Sonata\AdminBundle\Tests\Fixtures\Admin\CommentVoteAdmin;
 use Sonata\AdminBundle\Tests\Fixtures\Admin\CommentWithCustomRouteAdmin;
@@ -67,6 +72,9 @@
 use Symfony\Component\Form\FormBuilderInterface;
 use Symfony\Component\Form\FormEvent;
 use Symfony\Component\Form\FormEvents;
+use Symfony\Component\Form\FormFactory;
+use Symfony\Component\Form\FormRegistry;
+use Symfony\Component\Form\ResolvedFormTypeFactory;
 use Symfony\Component\HttpFoundation\ParameterBag;
 use Symfony\Component\HttpFoundation\Request;
 use Symfony\Component\PropertyAccess\PropertyAccess;
@@ -1597,6 +1605,13 @@ public function testGetFormWithCollectionParentValue(): void
         $this->assertInstanceOf(Collection::class, $tag->getPosts());
         $this->assertCount(2, $tag->getPosts());
         $this->assertContains($post, $tag->getPosts());
+    }
+
+    public function testGetFormWithArrayParentValue(): void
+    {
+        $post = new Post();
+        $tagAdmin = $this->createTagAdmin($post);
+        $tag = $tagAdmin->getSubject();
 
         // Case of an array
         $tag->setPosts([]);
@@ -2495,6 +2510,37 @@ public function testAdminWithoutControllerName(): void
         $this->assertNull($admin->getBaseControllerName());
     }
 
+    public function testAdminAvoidInifiniteLoop(): void
+    {
+        $this->expectNotToPerformAssertions();
+
+        $formFactory = new FormFactory(new FormRegistry([], new ResolvedFormTypeFactory()));
+
+        $admin = new AvoidInfiniteLoopAdmin('code', \stdClass::class, null);
+        $admin->setSubject(new \stdClass());
+
+        $admin->setFormContractor(new FormContractor($formFactory));
+
+        $admin->setShowBuilder(new ShowBuilder());
+
+        $admin->setListBuilder(new ListBuilder());
+
+        $pager = $this->createStub(PagerInterface::class);
+        $admin->setDatagridBuilder(new DatagridBuilder($formFactory, $pager));
+
+        $validator = $this->createMock(ValidatorInterface::class);
+        $validator->method('getMetadataFor')->willReturn($this->createStub(MemberMetadata::class));
+        $admin->setValidator($validator);
+
+        $routeGenerator = $this->createStub(RouteGeneratorInterface::class);
+        $admin->setRouteGenerator($routeGenerator);
+
+        $admin->getForm();
+        $admin->getShow();
+        $admin->getList();
+        $admin->getDatagrid();
+    }
+
     /**
      * NEXT_MAJOR: Remove this test and its data provider.
      *

tests/Fixtures/Admin/AvoidInfiniteLoopAdmin.php

@@ -0,0 +1,38 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Sonata\AdminBundle\Tests\Fixtures\Admin;
+
+use Sonata\AdminBundle\Admin\AbstractAdmin;
+use Sonata\AdminBundle\Datagrid\DatagridMapper;
+use Sonata\AdminBundle\Datagrid\ListMapper;
+use Sonata\AdminBundle\Form\FormMapper;
+use Sonata\AdminBundle\Show\ShowMapper;
+
+final class AvoidInfiniteLoopAdmin extends AbstractAdmin
+{
+    protected function configureDatagridFilters(DatagridMapper $datagridMapper): void
+    {
+        $this->getFilterFieldDescriptions();
+        $this->hasFilterFieldDescription('help');
+    }
+
+    protected function configureListFields(ListMapper $listMapper): void
+    {
+        $this->getListFieldDescriptions();
+        $this->hasFilterFieldDescription('help');
+    }
+
+    protected function configureFormFields(FormMapper $formMapper): void
+    {
+        $this->getFormFieldDescriptions();
+        $this->hasFilterFieldDescription('help');
+    }
+
+    protected function configureShowFields(ShowMapper $showMapper): void
+    {
+        $this->getShowFieldDescriptions();
+        $this->hasFilterFieldDescription('help');
+    }
+}