src/main/java/com/example/apgw/repository/SubjectRepository.java
package com.example.apgw.repository;
import com.example.apgw.model.Subject;
import com.example.apgw.model.Teacher;
import org.springframework.data.jpa.repository.JpaRepository;
import org.springframework.transaction.annotation.Transactional;
@Transactional
public interface SubjectRepository extends JpaRepository<Subject, Long> {
Subject findByDetails_NameAndTeacher(String name, Teacher teacher);
Subject findByDetails_IdAndTeacher(Long Id, Teacher teacher);
}