ADD ClipController for clip retrieval

src/main/java/com/ddf/vodsystem/repositories/ClipRepository.java

@@ -1,9 +1,15 @@
 package com.ddf.vodsystem.repositories;
 
 import com.ddf.vodsystem.entities.Clip;
+import com.ddf.vodsystem.entities.User;
 import org.springframework.data.jpa.repository.JpaRepository;
+import org.springframework.data.jpa.repository.Query;
 import org.springframework.stereotype.Repository;
 
+import java.util.List;
+
 @Repository
 public interface ClipRepository extends JpaRepository<Clip, Long> {
+    @Query("SELECT c FROM Clip c WHERE c.user = ?1")
+    List<Clip> findByUser(User user);
 }