public JsonResult CreateUpdate(CourseViewModel viewModel)
{
if (!ModelState.IsValid)
return Json(new { error = true, message = "There were errors in the submission" });
var currentCourse = _courseService.GetCourseById(viewModel.Number);
// If the course does not exist in the db, add
if (currentCourse == null)
{
try
{
// Build the course object
var course = new Course()
{
CourseID = viewModel.Number,
CourseTitle = viewModel.Name,
HoursPerWeek = viewModel.WeeklyHours,
Description = viewModel.Description
};
// Add the course
_courseService.AddCourse(course);
return Json(new { error = false, message = "Course successfully created!" });
}
catch (CourseExistsException)
{
// If the course already exists, display error
return Json(new {error = true, message = "Course already exists"});
}
}
// Otherwise, update the fields
currentCourse.CourseID = viewModel.Number;
currentCourse.CourseTitle = viewModel.Name;
currentCourse.HoursPerWeek = viewModel.WeeklyHours;
currentCourse.Description = viewModel.Description;
// Update the course with the changes
_courseService.EditCourse(currentCourse);
return Json(new {error = false, message = "The changes have been made!"});
}
// Populate Course View Model
public CourseViewModel PopulateViewModel(CourseViewModel viewModel)
{
viewModel.RegisteredCourses = _courseService.GetAllCourses();
return viewModel;
}