Add TablePrefix => set env variable DATABASE_PREFIX if you want to use database prefix

config/services.yaml

@@ -52,7 +52,7 @@ services:
     # this creates a service per class whose id is the fully-qualified class name
     App\:
         resource: '../src/*'
-        exclude: '../src/{DependencyInjection,Factory,Listener,Entity,Migrations,Tests,Twig,Kernel.php}'
+        exclude: '../src/{DependencyInjection,Factory,Doctrine,Listener,Entity,Migrations,Tests,Twig,Kernel.php}'
 
     # controllers are imported separately to make sure services can be injected
     # as action arguments even if you don't extend any base controller class
@@ -63,6 +63,13 @@ services:
     # add more service definitions when explicit configuration is needed
     # please note that last definitions always *replace* previous ones
 
+    # Définition du prefix pour les tables
+    App\Doctrine\TablePrefix:
+        arguments:
+            $prefix: '%env(string:DATABASE_PREFIX)%'
+        tags:
+            - { name: doctrine.event_subscriber, connection: default }
+
     # cache doctrine for bazinga geocoder
     mlc_cache_adapter:
         class: Doctrine\Common\Cache\ApcCache

src/Doctrine/TablePrefix.php

+<?php
+
+namespace App\Doctrine;
+
+use Doctrine\Common\EventSubscriber;
+use \Doctrine\ORM\Event\LoadClassMetadataEventArgs;
+
+class TablePrefix implements EventSubscriber
+{
+    protected $prefix = '';
+
+    public function __construct($prefix)
+    {
+        $this->prefix = (string) $prefix;
+    }
+
+    public function getSubscribedEvents()
+    {
+        return ['loadClassMetadata'];
+    }
+
+    public function loadClassMetadata(LoadClassMetadataEventArgs $eventArgs)
+    {
+        $classMetadata = $eventArgs->getClassMetadata();
+
+        if (!$classMetadata->isInheritanceTypeSingleTable() || $classMetadata->getName() === $classMetadata->rootEntityName) {
+            $classMetadata->setPrimaryTable([
+                'name' => $this->prefix . $classMetadata->getTableName()
+            ]);
+        }
+
+        foreach ($classMetadata->getAssociationMappings() as $fieldName => $mapping) {
+            if ($mapping['type'] == \Doctrine\ORM\Mapping\ClassMetadataInfo::MANY_TO_MANY && $mapping['isOwningSide']) {
+                $mappedTableName = $mapping['joinTable']['name'];
+                $classMetadata->associationMappings[$fieldName]['joinTable']['name'] = $this->prefix . $mappedTableName;
+            }
+        }
+    }
+}