public bool AssignCourseTeacher(CourseTeacher courseTeacher)
{
try
{
if (IsCourseTeacherPairExist(courseTeacher))
{
throw new Exception("This course already assigned to this teacher.");
}
else
{
if (IsCourseAssign(courseTeacher.CourseId))
{
throw new Exception("Course already assigned.");
}
else
{
CourseGetway courseGetway = new CourseGetway();
return(courseGetway.AssignCourseTeacher(courseTeacher));
}
}
}
catch (Exception)
{
throw;
}
}
