/// <summary>
/// Create a new problem via TeacherNewProblemViewModel
/// </summary>
public int CreateNewProblem(TeacherNewProblemViewModel problem)
{
var courseId = _courseService.GetCourseIdByCourseName(problem.CourseName);
// Filetype check
if (_db.Filetypes.SingleOrDefault(x => x.Type == problem.Filetype) == null)
{
var fileType = new Filetype {
Type = problem.Filetype
};
_db.Filetypes.Add(fileType);
}
// Language check
if (_db.ProgrammingLanguages.SingleOrDefault(x => x.Language == problem.Language) == null)
{
var language = new ProgrammingLanguage {
Language = problem.Filetype
};
_db.ProgrammingLanguages.Add(language);
}
// Add the new problem
var newProblem = new Problem {
CourseId = courseId,
Name = problem.Name,
Description = problem.Description,
Filetype = problem.Filetype,
Language = problem.Language
};
_db.Problems.Add(newProblem);
try {
_db.SaveChanges();
return(newProblem.Id);
}
catch (Exception e) {
return(0);
}
}
/* Creating a new problem requires 3 methods due to AJAX and model binding being weird when uploading a file, with data and a list of data */
public ActionResult NewProblem(TeacherNewProblemViewModel problem)
{
return(Json(_teacherService.CreateNewProblem(problem)));
}
