Repository for ClientManager and TokenManager is now instanciated on the fly, not in the constructor anymore

This avoids a database connection to be established for every request

Fixes issue #422

Author: abienvenu

Entity/ClientManager.php

@@ -14,7 +14,6 @@
 namespace FOS\OAuthServerBundle\Entity;
 
 use Doctrine\ORM\EntityManagerInterface;
-use Doctrine\ORM\EntityRepository;
 use FOS\OAuthServerBundle\Model\ClientInterface;
 use FOS\OAuthServerBundle\Model\ClientManager as BaseClientManager;
 
@@ -25,24 +24,14 @@ class ClientManager extends BaseClientManager
      */
     protected $em;
 
-    /**
-     * @var EntityRepository
-     */
-    protected $repository;
-
     /**
      * @var string
      */
     protected $class;
 
     public function __construct(EntityManagerInterface $em, $class)
     {
-        // NOTE: bug in Doctrine, hinting EntityRepository|ObjectRepository when only EntityRepository is expected
-        /** @var EntityRepository $repository */
-        $repository = $em->getRepository($class);
-
         $this->em = $em;
-        $this->repository = $repository;
         $this->class = $class;
     }
 
@@ -59,7 +48,7 @@ public function getClass()
      */
     public function findClientBy(array $criteria)
     {
-        return $this->repository->findOneBy($criteria);
+        return $this->em->getRepository($this->class)->findOneBy($criteria);
     }
 
     /**

Entity/TokenManager.php

@@ -14,7 +14,6 @@
 namespace FOS\OAuthServerBundle\Entity;
 
 use Doctrine\ORM\EntityManagerInterface;
-use Doctrine\ORM\EntityRepository;
 use FOS\OAuthServerBundle\Model\TokenInterface;
 use FOS\OAuthServerBundle\Model\TokenManager as BaseTokenManager;
 
@@ -25,24 +24,14 @@ class TokenManager extends BaseTokenManager
      */
     protected $em;
 
-    /**
-     * @var EntityRepository
-     */
-    protected $repository;
-
     /**
      * @var string
      */
     protected $class;
 
     public function __construct(EntityManagerInterface $em, $class)
     {
-        // NOTE: bug in Doctrine, hinting EntityRepository|ObjectRepository when only EntityRepository is expected
-        /** @var EntityRepository $repository */
-        $repository = $em->getRepository($class);
-
         $this->em = $em;
-        $this->repository = $repository;
         $this->class = $class;
     }
 
@@ -59,7 +48,7 @@ public function getClass()
      */
     public function findTokenBy(array $criteria)
     {
-        return $this->repository->findOneBy($criteria);
+        return $this->em->getRepository($this->class)->findOneBy($criteria);
     }
 
     /**
@@ -85,7 +74,7 @@ public function deleteToken(TokenInterface $token)
      */
     public function deleteExpired()
     {
-        $qb = $this->repository->createQueryBuilder('t');
+        $qb = $this->em->getRepository($this->class)->createQueryBuilder('t');
         $qb
             ->delete()
             ->where('t.expiresAt < ?1')

Tests/Entity/ClientManagerTest.php

@@ -57,13 +57,6 @@ public function setUp()
         ;
         $this->className = 'RandomClassName'.\random_bytes(5);
 
-        $this->entityManager
-            ->expects($this->once())
-            ->method('getRepository')
-            ->with($this->className)
-            ->willReturn($this->repository)
-        ;
-
         $this->instance = new ClientManager($this->entityManager, $this->className);
 
         parent::setUp();
@@ -72,7 +65,6 @@ public function setUp()
     public function testConstructWillSetParameters()
     {
         $this->assertAttributeSame($this->entityManager, 'em', $this->instance);
-        $this->assertAttributeSame($this->repository, 'repository', $this->instance);
         $this->assertAttributeSame($this->className, 'class', $this->instance);
     }
 
@@ -88,6 +80,13 @@ public function testFindClientBy()
         ];
         $randomResult = \random_bytes(5);
 
+        $this->entityManager
+            ->expects($this->once())
+            ->method('getRepository')
+            ->with($this->className)
+            ->willReturn($this->repository)
+        ;
+
         $this->repository
             ->expects($this->once())
             ->method('findOneBy')

Tests/Entity/TokenManagerTest.php

@@ -63,20 +63,12 @@ public function setUp()
             ->getMock()
         ;
 
-        $this->entityManager
-            ->expects($this->once())
-            ->method('getRepository')
-            ->with($this->className)
-            ->willReturn($this->repository)
-        ;
-
         $this->instance = new TokenManager($this->entityManager, $this->className);
     }
 
     public function testConstructWillSetParameters()
     {
         $this->assertAttributeSame($this->entityManager, 'em', $this->instance);
-        $this->assertAttributeSame($this->repository, 'repository', $this->instance);
         $this->assertAttributeSame($this->className, 'class', $this->instance);
     }
 
@@ -112,6 +104,13 @@ public function testFindTokenBy()
             \random_bytes(5),
         ];
 
+        $this->entityManager
+            ->expects($this->once())
+            ->method('getRepository')
+            ->with($this->className)
+            ->willReturn($this->repository)
+        ;
+
         $this->repository
             ->expects($this->once())
             ->method('findOneBy')
@@ -174,6 +173,13 @@ public function testDeleteExpired()
     {
         $randomResult = \random_bytes(10);
 
+        $this->entityManager
+            ->expects($this->once())
+            ->method('getRepository')
+            ->with($this->className)
+            ->willReturn($this->repository)
+        ;
+
         $queryBuilder = $this->getMockBuilder(QueryBuilder::class)
             ->disableOriginalConstructor()
             ->getMock()