/// <summary>
/// Method that updates a course with a given ID.
/// The attributes that are updated are given with a view model class.
/// </summary>
/// <param name="id">ID of the course</param>
/// <param name="model">Update course view model (ViewModel class)</param>
/// <returns>The updated course (DTO class)</returns>
public CourseDetailsDTO UpdateCourse(int id, UpdateCourseViewModel model)
{
var course = _db.Courses.SingleOrDefault(x => x.ID == id);
if (course == null)
{
throw new AppObjectNotFoundException();
}
var courseTemplate = _db.CourseTemplates.SingleOrDefault(x => x.TemplateID == course.TemplateID);
if (courseTemplate == null)
{
throw new AppInternalServerException();
}
course.StartDate = model.StartDate;
course.EndDate = model.EndDate;
_db.SaveChanges();
var students = GetStudentsInCourse(id);
var result = new CourseDetailsDTO
{
ID = course.ID,
Name = courseTemplate.Name,
TemplateID = courseTemplate.TemplateID,
StartDate = course.StartDate,
EndDate = course.EndDate,
StudentCount = students.Count,
Students = students,
Semester = course.Semester
};
return result;
}
public IHttpActionResult UpdateCourse(int id, UpdateCourseViewModel model)
{
try
{
return Ok(_service.UpdateCourse(id, model));
}
catch (AppObjectNotFoundException)
{
throw new HttpResponseException(HttpStatusCode.NotFound);
}
catch (AppInternalServerException)
{
throw new HttpResponseException(HttpStatusCode.InternalServerError);
}
}
