| 1 |  |  | <?php | 
            
                                                                                                            
                            
            
                                    
            
            
                | 2 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 3 |  |  | /* | 
            
                                                                                                            
                            
            
                                    
            
            
                | 4 |  |  |  * This file is part of the Hautelook\AliceBundle package. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 5 |  |  |  * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 6 |  |  |  * (c) Baldur Rensch <[email protected]> | 
            
                                                                                                            
                            
            
                                    
            
            
                | 7 |  |  |  * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 8 |  |  |  * For the full copyright and license information, please view the LICENSE | 
            
                                                                                                            
                            
            
                                    
            
            
                | 9 |  |  |  * file that was distributed with this source code. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 10 |  |  |  */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 11 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 12 |  |  | namespace Hautelook\AliceBundle\Doctrine\DataFixtures\Executor; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 13 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 14 |  |  | use Doctrine\Common\DataFixtures\Executor\ORMExecutor as DoctrineORMExecutor; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 15 |  |  | use Doctrine\Common\DataFixtures\Purger\ORMPurger; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 16 |  |  | use Doctrine\DBAL\Platforms\MySqlPlatform; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 17 |  |  | use Doctrine\ORM\EntityManagerInterface; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 18 |  |  | use Hautelook\AliceBundle\Alice\DataFixtures\LoaderInterface; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 19 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 20 |  |  | /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 21 |  |  |  * Class responsible for executing data fixtures. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 22 |  |  |  * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 23 |  |  |  * @author Théo FIDRY <[email protected]> | 
            
                                                                                                            
                            
            
                                    
            
            
                | 24 |  |  |  */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 25 |  |  | class ORMExecutor extends DoctrineORMExecutor implements ExecutorInterface | 
            
                                                                                                            
                            
            
                                    
            
            
                | 26 |  |  | { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 27 |  |  |     use ExecutorTrait; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 28 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 29 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 30 |  |  |      * @var LoaderInterface | 
            
                                                                                                            
                            
            
                                    
            
            
                | 31 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 32 |  |  |     private $loader; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 33 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 34 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 35 |  |  |      * Construct new fixtures loader instance. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 36 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 37 |  |  |      * @param EntityManagerInterface $manager EntityManagerInterface instance used for persistence. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 38 |  |  |      * @param LoaderInterface        $loader | 
            
                                                                                                            
                            
            
                                    
            
            
                | 39 |  |  |      * @param ORMPurger              $purger | 
            
                                                                                                            
                            
            
                                    
            
            
                | 40 | 49 |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 41 |  |  |     public function __construct(EntityManagerInterface $manager, LoaderInterface $loader, ORMPurger $purger = null) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 42 | 49 |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 43 |  |  |         parent::__construct($manager, $purger); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 44 | 49 |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 45 | 49 |  |         $this->loader = $loader; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 46 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 47 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 48 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 49 |  |  |      * {@inheritdoc} | 
            
                                                                                                            
                                                                
            
                                    
            
            
                | 50 | 48 |  |      */ | 
            
                                                                        
                            
            
                                    
            
            
                | 51 |  |  |     public function purge() | 
            
                                                                        
                            
            
                                    
            
            
                | 52 | 48 |  |     { | 
            
                                                                        
                            
            
                                    
            
            
                | 53 | 48 |  |         $connection = $this->getObjectManager()->getConnection(); | 
            
                                                                        
                            
            
                                    
            
            
                | 54 |  |  |         $mysqlPlatform = $this->purger->getPurgeMode() === ORMPurger::PURGE_MODE_TRUNCATE | 
                            
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                | 55 |  |  |             && $connection->getDatabasePlatform() instanceof MySqlPlatform; | 
            
                                                                        
                            
            
                                    
            
            
                | 56 |  |  |         if ($mysqlPlatform) { | 
            
                                                                        
                            
            
                                    
            
            
                | 57 |  |  |             $connection->exec('SET FOREIGN_KEY_CHECKS = 0;'); | 
            
                                                                        
                            
            
                                    
            
            
                | 58 |  |  |         } | 
            
                                                                        
                            
            
                                    
            
            
                | 59 |  |  |  | 
            
                                                                        
                            
            
                                    
            
            
                | 60 |  |  |         parent::purge(); | 
            
                                                                        
                            
            
                                    
            
            
                | 61 |  |  |  | 
            
                                                                        
                            
            
                                    
            
            
                | 62 |  |  |         if ($mysqlPlatform) { | 
            
                                                                        
                            
            
                                    
            
            
                | 63 |  |  |             $connection->exec('SET FOREIGN_KEY_CHECKS = 1;'); | 
            
                                                                        
                            
            
                                    
            
            
                | 64 |  |  |         } | 
            
                                                                        
                            
            
                                    
            
            
                | 65 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 66 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 67 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 68 |  |  |      * {@inheritdoc} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 69 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 70 |  |  |     public function execute(array $fixtures, $append = false) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 71 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 72 |  |  |         $this->executeExecutor($this, $this->getObjectManager(), $this->loader, $fixtures, $append); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 73 |  |  |     } | 
            
                                                                                                            
                                                                
            
                                    
            
            
                | 74 |  |  | } | 
            
                                                        
            
                                    
            
            
                | 75 |  |  |  | 
            
                        
Let’s take a look at an example:
In the above example, the authenticate() method works fine as long as you just pass instances of MyUser. However, if you now also want to pass a different implementation of User which does not have a getDisplayName() method, the code will break.
Available Fixes
Change the type-hint for the parameter:
Add an additional type-check:
Add the method to the interface: