public int AssaignCourseTeacher(Teacher teacher)
{
int assaigned = 0;
if (anTeacherGateway.IsCourseAssaigned(teacher))
{
assaigned = 2;
}
else
{
int isRowAffected = anTeacherGateway.AssaignCourseTeacher(teacher);
if (isRowAffected > 0)
{
double remain = teacher.CreditLeft - teacher.Credit;
anTeacherGateway.UpdateTeacherCredit(remain, teacher.Id);
assaigned = 1;
}
else
{
assaigned = 2;
}
}
return(assaigned);
}