public UserCourse AddUserCourse(UserCourse userCourse)
{
User user = _context.Users
.FirstOrDefault(u => u.Id == userCourse.UserId);
if (user == null)
{
throw new ArgumentNullException(nameof(user));
}
Course course = _context.Courses.FirstOrDefault(c => c.CourseId == userCourse.CourseId);
if (course == null)
{
throw new ArgumentNullException(nameof(course));
}
UserCourse uscr = new UserCourse()
{
Course = course,
User = user
};
_context.UserCourses.Add(uscr);
_context.SaveChanges();
return(uscr);
}
public bool Save()
{
return(context.SaveChanges() >= 0);
}
