public Result <Assignment> FindAssignmentById(string identifier, int assignmentIdentifier)
{
Result <Assignment> result = new Result <Assignment>();
var assign = assignRepo.FindAssignmentByID(identifier, assignmentIdentifier);
if (assign == null)
{
result.Success = false;
result.AddMessage("Assignment could not be found");
return(result);
}
result.Success = true;
result.Payload = assign;
return(result);
}