(TP-111) feat: add Queries with LEFT JOINs to ReservationRepository

Author: Kattsyn

rentplace/src/main/java/kattsyn/dev/rentplace/repositories/ReservationRepository.java

@@ -2,11 +2,50 @@
 
 import kattsyn.dev.rentplace.entities.Reservation;
 import org.springframework.data.jpa.repository.JpaRepository;
+import org.springframework.data.jpa.repository.Query;
+import org.springframework.data.repository.query.Param;
 
 import java.util.List;
+import java.util.Optional;
 
 public interface ReservationRepository extends JpaRepository<Reservation, Long> {
 
-    List<Reservation> findAllByRenterEmail(String email);
+    @Query("""
+            SELECT DISTINCT r from Reservation r
+            LEFT JOIN FETCH r.property p
+            LEFT JOIN FETCH r.renter
+            LEFT JOIN FETCH p.images
+            LEFT JOIN FETCH p.owner
+            LEFT JOIN FETCH p.facilities
+            LEFT JOIN FETCH p.categories
+            """
+    )
+    List<Reservation> findAllWithRelations();
+
+    @Query("""
+            SELECT DISTINCT r from Reservation r
+            LEFT JOIN FETCH r.property p
+            LEFT JOIN FETCH r.renter
+            LEFT JOIN FETCH p.images
+            LEFT JOIN FETCH p.owner
+            LEFT JOIN FETCH p.facilities
+            LEFT JOIN FETCH p.categories
+            WHERE r.renter.email = :email
+            """
+    )
+    List<Reservation> findAllByRenterEmail(@Param("email") String email);
+
+    @Query("""
+            SELECT DISTINCT r from Reservation r
+            LEFT JOIN FETCH r.property p
+            LEFT JOIN FETCH r.renter
+            LEFT JOIN FETCH p.images
+            LEFT JOIN FETCH p.owner
+            LEFT JOIN FETCH p.facilities
+            LEFT JOIN FETCH p.categories
+            WHERE r.reservationId = :reservationId
+            """
+    )
+    Optional<Reservation> findById(@Param("reservationId") long reservationId);
 
 }