docgen: improve listing for templates

src/Bundle/ChillDocGeneratorBundle/Repository/DocGeneratorTemplateRepository.php

@@ -25,6 +25,18 @@ final class DocGeneratorTemplateRepository implements ObjectRepository
         $this->repository = $entityManager->getRepository(DocGeneratorTemplate::class);
     }
 
+    public function countByEntity(string $entity): int
+    {
+        $builder = $this->repository->createQueryBuilder('t');
+
+        $builder
+            ->select('count(t)')
+            ->where('t.entities LIKE :entity')
+            ->setParameter('entity', '%' . addslashes($entity) . '%');
+
+        return $builder->getQuery()->getSingleScalarResult();
+    }
+
     public function find($id, $lockMode = null, $lockVersion = null): ?DocGeneratorTemplate
     {
         return $this->repository->find($id, $lockMode, $lockVersion);
@@ -49,7 +61,10 @@ final class DocGeneratorTemplateRepository implements ObjectRepository
         return $this->repository->findBy($criteria, $orderBy, $limit, $offset);
     }
 
-    public function findByEntity($entity)
+    /**
+     * @return array|DocGeneratorTemplate[]
+     */
+    public function findByEntity(string $entity, ?int $start = 0, ?int $limit = 50): array
     {
         $builder = $this->repository->createQueryBuilder('t');
 
@@ -57,7 +72,11 @@ final class DocGeneratorTemplateRepository implements ObjectRepository
             ->where('t.entities LIKE :entity')
             ->setParameter('entity', '%' . addslashes($entity) . '%');
 
-        return $builder->getQuery()->execute();
+        return $builder
+            ->getQuery()
+            ->setFirstResult($start)
+            ->setMaxResults($limit)
+            ->getResult();
     }
 
     public function findOneBy(array $criteria, ?array $orderBy = null): ?DocGeneratorTemplate