public ActionResult teacherLogin(Teacher teacher)
{
//check if the username and password matches
Teacher current = m.Teachers.First((t) => t.Username == teacher.Username && t.Password == teacher.Password);
if (current != null)
{
//new instance of the Activity class
Activity teacherActivity = new Activity();
//assigns the teacher's name as the username
teacherActivity.ActivityName = "Username: "******"Teacher", current.Username);
return(Redirect("/"));
}
else
{
//error handling
ViewBag["error"] = "Login failed. Could not find a teacher with that username and password";
return(View("TeacherLogin"));
}
}
public IEnumerable <Calculation> Delete()//return empty IEnumerable
{
using (var context = new MathDbContext())
{
context.Calculations.RemoveRange(context.Calculations.ToList());
context.SaveChanges();
return(context.Calculations.ToArray());
}
}
public CalcApiResult Post(string operationName, [FromBody] InputNumbers numbers)
{
Operation op;
switch (operationName.ToLower())
{
case "osszeadas":
op = Operation.összeadás;
break;
case "kivonas":
op = Operation.kivonás;
break;
case "szorzas":
op = Operation.szorzás;
break;
case "osztas":
op = Operation.osztás;
if (numbers.BNum == 0)
{
throw new DivideByZeroException("Nullával való osztás nem értelmezhető! A számítás nem került rögzítésre.");
}
break;
case "hatvanyozas":
op = Operation.hatványozás;
break;
default:
throw new Exception("Nem definiált művelet! Csak az osszeadas, kivonas, szorzas, osztas illetve hatvanyozas műveleti kulcsszó használata elfogadott(ékezett nélkül)!" +
" api/math/<művelet>");
}
CalcApiResult calcApi;
/// Calculate and save result into database
using (var context = new MathDbContext())
{
calcApi = new CalcApiResult
(
anum: numbers.ANum,
bnum: numbers.BNum,
muvelet: op.ToString(),
eredmeny: numbers.CalculateOperation(op.ToString())
);
Calculation calculation = new ()
{
Created = DateTime.Now,
Anum = calcApi.ANum,
Bnum = calcApi.BNum,
Muvelet = calcApi.Muvelet,
Eredmeny = calcApi.Eredmeny
};
context.Calculations.Add(calculation);
context.SaveChanges();
}
return(calcApi);
}
}