fix(symfony): add default item provider

Author: soyuka

src/State/ObjectProvider.php

@@ -0,0 +1,31 @@
+<?php
+
+/*
+ * This file is part of the API Platform project.
+ *
+ * (c) Kévin Dunglas <[email protected]>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+declare(strict_types=1);
+
+namespace ApiPlatform\State;
+
+use ApiPlatform\Metadata\Operation;
+
+/**
+ * An ItemProvider that just create a new object.
+ *
+ * @author Antoine Bluchet <[email protected]>
+ *
+ * @experimental
+ */
+final class ObjectProvider implements ProviderInterface
+{
+    public function provide(Operation $operation, array $uriVariables = [], array $context = []): ?object
+    {
+        return new ($operation->getClass());
+    }
+}

src/Symfony/Bundle/DependencyInjection/ApiPlatformExtension.php

@@ -128,6 +128,10 @@ public function load(array $configs, ContainerBuilder $container): void
             ->addTag('api_platform.state_provider');
         $container->registerForAutoconfiguration(ProcessorInterface::class)
             ->addTag('api_platform.state_processor');
+
+        if (!$container->has('api_platform.state.item_provider')) {
+            $container->setAlias('api_platform.state.item_provider', 'api_platform.state_provider.object');
+        }
     }
 
     private function registerCommonConfiguration(ContainerBuilder $container, array $config, XmlFileLoader $loader, array $formats, array $patchFormats, array $errorFormats): void

src/Symfony/Bundle/Resources/config/state.xml

@@ -41,12 +41,18 @@
         </service>
         <service id="ApiPlatform\State\Pagination\PaginationOptions" alias="api_platform.pagination_options" />
 
-        <service id="ApiPlatform\State\CreateProvider" class="ApiPlatform\State\CreateProvider">
+        <service id="api_platform.state_provider.create" class="ApiPlatform\State\CreateProvider">
             <argument type="service" id="api_platform.state.item_provider" />
 
-            <tag name="api_platform.state_provider" />
+            <tag name="api_platform.state_provider" key="ApiPlatform\State\CreateProvider" />
+            <tag name="api_platform.state_provider" key="api_platform.state_provider.create" />
         </service>
-        <service id="api_platform.state_provider.create" alias="ApiPlatform\State\CreateProvider" />
+        <service id="ApiPlatform\State\CreateProvider" alias="api_platform.state_provider.create" />
 
+        <service id="api_platform.state_provider.object" class="ApiPlatform\State\ObjectProvider">
+            <tag name="api_platform.state_provider" key="ApiPlatform\State\ObjectProvider" />
+            <tag name="api_platform.state_provider" key="api_platform.state_provider.object" />
+        </service>
+        <service id="ApiPlatform\State\ObjectProvider" alias="api_platform.state_provider.object" />
     </services>
 </container>