Add support for displaying additional values in list views

docs/.doctor-rst.yaml

@@ -30,3 +30,7 @@ rules:
     #no_config_yaml: ~
     #kernel_instead_of_app_kernel: ~
     #no_app_console: ~
+
+whitelist:
+    lines:
+        - '.. versionadded:: 3.x'

docs/reference/action_list.rst

@@ -578,5 +578,59 @@ Checkbox range selection
     You can check / uncheck a range of checkboxes by clicking a first one,
     then a second one with shift + click.
 
+Displaying a non-model field
+----------------------------
+
+.. versionadded:: 3.x
+
+  Support for displaying fields not part of the model class was introduced in version 3.x.
+
+The list view can also display fields that are not part of the model class.
+
+In some situations you can add a new getter to your model class to calculate
+a field based on the other fields of your model::
+
+    // src/Entity/User.php
+
+    public function getFullName(): string
+    {
+        return $this->getGivenName().' '.$this->getFamilyName();
+    }
+
+    // src/Admin/UserAdmin.php
+
+    protected function configureListFields(ListMapper $listMapper)
+    {
+        $listMapper->addIdentifier('fullName');
+    }
+
+In situations where the data are not available in the model or it is more performant
+to have the database calculate the value you can override the ``configureQuery()`` Admin
+class method to add fields to the result set.
+In ``configureListFields()`` these fields can be added using the alias given
+in the query.
+
+In the following example the number of comments for a post is added to the
+query and displayed::
+
+    // src/Admin/PostAdmin.php
+
+    protected function configureQuery(ProxyQueryInterface $query): ProxyQueryInterface
+    {
+        $query = parent::configureQuery($query);
+
+        $query
+            ->leftJoin('n.Comments', 'c')
+            ->addSelect('COUNT(c.id) numberofcomments')
+            ->addGroupBy('n');
+
+        return $query;
+    }
+
+    protected function configureListFields(ListMapper $listMapper)
+    {
+        $listMapper->addIdentifier('numberofcomments');
+    }
+
 .. _`SonataDoctrineORMAdminBundle Documentation`: https://sonata-project.org/bundles/doctrine-orm-admin/master/doc/reference/list_field_definition.html
 .. _`here`: https://github.com/sonata-project/SonataCoreBundle/tree/3.x/src/Form/Type

src/Twig/Extension/SonataAdminExtension.php

@@ -184,14 +184,14 @@ public function getName()
     /**
      * render a list element from the FieldDescription.
      *
-     * @param object $object
-     * @param array  $params
+     * @param object|array $listElement
+     * @param array        $params
      *
      * @return string
      */
     public function renderListElement(
         Environment $environment,
-        $object,
+        $listElement,
         FieldDescriptionInterface $fieldDescription,
         $params = []
     ) {
@@ -203,10 +203,12 @@ public function renderListElement(
             $environment
         );
 
+        [$object, $value] = $this->getObjectAndValueFromListElement($listElement, $fieldDescription);
+
         return $this->render($fieldDescription, $template, array_merge($params, [
             'admin' => $fieldDescription->getAdmin(),
             'object' => $object,
-            'value' => $this->getValueFromFieldDescription($object, $fieldDescription),
+            'value' => $value,
             'field_description' => $fieldDescription,
         ]), $environment);
     }
@@ -238,13 +240,23 @@ public function output(
      *
      * @throws \RuntimeException
      *
+     * NEXT_MAJOR: Remove this method
+     *
+     * @deprecated This method is deprecated with no replacement since sonata-project/admin-bundle 3.x and will be removed in 4.0.
+     *
      * @return mixed
      */
     public function getValueFromFieldDescription(
         $object,
         FieldDescriptionInterface $fieldDescription,
         array $params = []
     ) {
+        @trigger_error(sprintf(
+            'The %s() method is deprecated since sonata-project/admin-bundle 3.x and will be removed in version 4.0.'
+            .' There is no replacement.',
+            __METHOD__
+        ), E_USER_DEPRECATED);
+
         if (isset($params['loop']) && $object instanceof \ArrayAccess) {
             throw new \RuntimeException('remove the loop requirement');
         }
@@ -695,4 +707,49 @@ private function getTemplateRegistry(string $adminCode): TemplateRegistryInterfa
 
         throw new ServiceNotFoundException($serviceId);
     }
+
+    /**
+     * Extracts the object and requested value from the $listElement.
+     *
+     * @param object|array $listElement
+     *
+     * @throws \TypeError when $listElement is not an object or an array with an object on offset 0
+     *
+     * @return array An array containing object and value
+     */
+    private function getObjectAndValueFromListElement(
+        $listElement,
+        FieldDescriptionInterface $fieldDescription
+    ): array {
+        if (\is_object($listElement)) {
+            $object = $listElement;
+        } elseif (\is_array($listElement)) {
+            if (!isset($listElement[0]) || !\is_object($listElement[0])) {
+                throw new \TypeError(sprintf('If argument 1 passed to %s() is an array it must contain an object at offset 0.', __METHOD__));
+            }
+
+            $object = $listElement[0];
+        } else {
+            throw new \TypeError(sprintf('Argument 1 passed to %s() must be an object or an array, %s given.', __METHOD__, \gettype($listElement)));
+        }
+
+        if (\is_array($listElement) && \array_key_exists($fieldDescription->getName(), $listElement)) {
+            $value = $listElement[$fieldDescription->getName()];
+        } else {
+            try {
+                $value = $fieldDescription->getValue($object);
+            } catch (NoValueException $e) {
+                // NEXT_MAJOR: throw the NoValueException.
+                @trigger_error(
+                    'Accessing a non existing value is deprecated'
+                    .' since sonata-project/admin-bundle 3.67 and will throw an exception in 4.0.',
+                    E_USER_DEPRECATED
+                );
+
+                $value = null;
+            }
+        }
+
+        return [$object, $value];
+    }
 }

tests/Twig/Extension/SonataAdminExtensionTest.php

@@ -386,6 +386,68 @@ public function testRenderListElement(string $expected, string $type, $value, ar
         );
     }
 
+    /**
+     * NEXT_MAJOR: Remove @expectedDeprecation.
+     *
+     * @group legacy
+     * @expectedDeprecation The Sonata\AdminBundle\Admin\AbstractAdmin::getTemplate method is deprecated (since sonata-project/admin-bundle 3.34, will be dropped in 4.0. Use TemplateRegistry services instead).
+     */
+    public function testRenderListElementWithAdditionalValuesInArray(): void
+    {
+        // NEXT_MAJOR: Remove this line
+        $this->admin
+            ->method('getTemplate')
+            ->with('base_list_field')
+            ->willReturn('@SonataAdmin/CRUD/base_list_field.html.twig');
+
+        $this->templateRegistry->getTemplate('base_list_field')->willReturn('@SonataAdmin/CRUD/base_list_field.html.twig');
+
+        $this->fieldDescription
+            ->method('getTemplate')
+            ->willReturn('@SonataAdmin/CRUD/list_string.html.twig');
+
+        $this->assertSame(
+            $this->removeExtraWhitespace('<td class="sonata-ba-list-field sonata-ba-list-field-" objectId="12345"> Extra value </td>'),
+            $this->removeExtraWhitespace($this->twigExtension->renderListElement(
+                $this->environment,
+                [$this->object, 'fd_name' => 'Extra value'],
+                $this->fieldDescription
+            ))
+        );
+    }
+
+    /**
+     * NEXT_MAJOR: Remove @expectedDeprecation.
+     *
+     * @group legacy
+     * @expectedDeprecation Accessing a non existing value is deprecated since sonata-project/admin-bundle 3.67 and will throw an exception in 4.0.
+     */
+    public function testRenderListElementWithNoValueException(): void
+    {
+        // NEXT_MAJOR: Remove this line
+        $this->admin
+            ->method('getTemplate')
+            ->with('base_list_field')
+            ->willReturn('@SonataAdmin/CRUD/base_list_field.html.twig');
+
+        $this->templateRegistry->getTemplate('base_list_field')->willReturn('@SonataAdmin/CRUD/base_list_field.html.twig');
+
+        $this->fieldDescription
+            ->method('getValue')
+            ->willReturnCallback(static function (): void {
+                throw new NoValueException();
+            });
+
+        $this->assertSame(
+            $this->removeExtraWhitespace('<td class="sonata-ba-list-field sonata-ba-list-field-" objectId="12345"> </td>'),
+            $this->removeExtraWhitespace($this->twigExtension->renderListElement(
+                $this->environment,
+                $this->object,
+                $this->fieldDescription
+            ))
+        );
+    }
+
     /**
      * @dataProvider getDeprecatedRenderListElementTests
      * @group legacy
@@ -2261,6 +2323,11 @@ public function getDeprecatedTextExtensionItems(): iterable
         ];
     }
 
+    /**
+     * NEXT_MAJOR: Remove this test.
+     *
+     * @group legacy
+     */
     public function testGetValueFromFieldDescription(): void
     {
         $object = new \stdClass();
@@ -2273,6 +2340,11 @@ public function testGetValueFromFieldDescription(): void
         $this->assertSame('test123', $this->twigExtension->getValueFromFieldDescription($object, $fieldDescription));
     }
 
+    /**
+     * NEXT_MAJOR: Remove this test.
+     *
+     * @group legacy
+     */
     public function testGetValueFromFieldDescriptionWithRemoveLoopException(): void
     {
         $object = $this->createMock(\ArrayAccess::class);
@@ -2288,7 +2360,7 @@ public function testGetValueFromFieldDescriptionWithRemoveLoopException(): void
     }
 
     /**
-     * NEXT_MAJOR: Change this test to expect a NoValueException instead.
+     * NEXT_MAJOR: Remove this test.
      *
      * @group legacy
      * @expectedDeprecation Accessing a non existing value is deprecated since sonata-project/admin-bundle 3.67 and will throw an exception in 4.0.
@@ -2311,6 +2383,11 @@ public function testGetValueFromFieldDescriptionWithNoValueException(): void
         $this->assertNull($this->twigExtension->getValueFromFieldDescription($object, $fieldDescription));
     }
 
+    /**
+     * NEXT_MAJOR: Remove this test.
+     *
+     * @group legacy
+     */
     public function testGetValueFromFieldDescriptionWithNoValueExceptionNewAdminInstance(): void
     {
         $object = new \stdClass();