public string AddNewTeacher(string Name, string Surname, string PassportNomber, int IdSchool)
{
if (string.IsNullOrEmpty(Name) || string.IsNullOrEmpty(Surname) || string.IsNullOrEmpty(PassportNomber))
{
return("All Informations Of Teacher Not Allow To be Empty");
}
else
{
if (_dalschool.IsExist(IdSchool))
{
if (!_dal.IsExist(Name, Surname))
{
var teacher = Teacher.CreaTeacher(Name, Surname, PassportNomber);
_dal.AddNewTeacher(teacher);
var School = _dalschool.GetSchool(IdSchool);
_dal.AddNewTeacherSchool(TeacherSchool.CreaTeacherSchool(School, teacher));
return("true");
}
else
{
return("This Teacher Is Exist Before");
}
}
else
{
return("This School Is Not Exist ");
}
}
}
public string AddTeacherToSchool(int IdSchool, int IdTeacher)
{
if (_dal.IsExist(IdTeacher))
{
if (_dalschool.IsExist(IdSchool))
{
var School = _dalschool.GetSchool(IdSchool);
var Teacher = _dal.GetTeaher(IdTeacher);
_dal.AddNewTeacherSchool(TeacherSchool.CreaTeacherSchool(School, Teacher));
return("true");
}
else
{
return("This Teacher Is Exist Before");
}
}
else
{
return("This School Is Not Exist ");
}
}