public string Save(ClassRoom classRoom)
{
if (classRoomGateway.CheckSlot(classRoom) && classRoomGateway.CheckSlot2(classRoom))
{
return("Slot already Booked");
}
else
{
if (classRoomGateway.Save(classRoom) > 0)
{
return("Saved");
}
else
{
return("Not saved");
}
}
}