public IHttpActionResult Put(EmployeeViewModel emp)
{
try
{
int errorNumber = emp.Update();
switch (errorNumber)
{
case 1:
return Ok("Employee " + emp.Lastname + " updated!");
break;
case -1:
return Ok("Employee" + emp.Lastname + " not updated!");
break;
case -2:
return Ok("Data is stale for " + emp.Lastname + ". Employee not updated!");
break;
default:
return Ok("Employee" + emp.Lastname + " not updated!");
break;
}
} catch (Exception ex)
{
return BadRequest("Update failed - " + ex.Message);
}
}
public void UpdateViewModelTwiceShouldGenerateConcurrencyException()
{
int rowsUpdated = 0;
EmployeeViewModel user1Vm = new EmployeeViewModel();
EmployeeViewModel user2Vm = new EmployeeViewModel();
// Simulate users getting same employee:
user1Vm.Lastname = "Smartypants";
user1Vm.GetBySurname();
user2Vm.Lastname = "Smartypants";
user2Vm.GetBySurname();
// Change phone number for user 1:
user1Vm.Phoneno = "555-555-5551";
// User 1 updates:
rowsUpdated = user1Vm.Update();
if (rowsUpdated == 1)
{
// Change phone numeber for user 2:
user2Vm.Phoneno = "555-555-5552";
// Conncurrency exception rowsUpdated should = -2
rowsUpdated = user2Vm.Update();
}
Assert.IsTrue(rowsUpdated == -2);
}