public int Insert(Course course)
{
_db.Course.Add(course);
return(_db.SaveChanges());
}
public int Insert(Grade grades)
{
_db.Grade.Add(grades);
return(_db.SaveChanges());
}
public int Insert(Teacher teacher)
{
_db.Teacher.Add(teacher);
return(_db.SaveChanges());
}
public int Insert(Subject subjects)
{
_db.Subject.Add(subjects);
return(_db.SaveChanges());
}
public int Insert(RelationshipsTeacherSubject relationships)
{
_db.RelationshipsTeacherSubject.Add(relationships);
return(_db.SaveChanges());
}
public int Insert(Student student)
{
_db.Student.Add(student);
return(_db.SaveChanges());
}