public int GetCourseId(int chapterId)
{
using (var dbContext = new EduTestEntities())
{
return dbContext.Chapters.First(c => c.Id == chapterId).Module.CourseId;
}
}
public Task<IEnumerable<QuestionBaseModel>> GetQuestions(int page, int perPage)
{
using (var dbModel = new EduTestEntities())
{
throw new NotImplementedException();
}
}
public async Task<bool> ExistsTopic(int id)
{
using (var dbContext = new EduTestEntities())
{
return await dbContext.Topics.AnyAsync(u => u.Id == id);
}
}
public Task<int> GetTotalCount()
{
using (var dbModel = new EduTestEntities())
{
return dbModel.Students.CountAsync();
}
}
public async Task<int> AddDeepCourse(CourseModel courseModel)
{
using (var dbContext = new EduTestEntities())
{
var course = new Course()
{
Name = courseModel.Name,
Modules = courseModel.Modules.Select(m => new Module()
{
Name = m.Name,
Chapters = m.Chapters.Select(c => new Chapter()
{
Name = c.Name,
Topics = c.Topics.Select(t => new Topic()
{
Name = t.Name
}).ToList()
}).ToList()
}).ToList()
};
dbContext.Courses.Add(course);
if (await dbContext.SaveChangesAsync() < 0)
throw new Exception("CoursesRepository.AddCourse: Could not add course to db");
return course.Id;
}
}
public int GetCourseId(int moduleId)
{
using (var dbContext = new EduTestEntities())
{
return dbContext.Modules.First(m => m.Id == moduleId).CourseId;
}
}
public int GetCourseId(int topicId)
{
using (var dbContext = new EduTestEntities())
{
return dbContext.Topics.First(c => c.Id == topicId).Chapter.Module.CourseId;
}
}
public Task<int> AddQuestion(QuestionBaseModel question)
{
using (var dbModel = new EduTestEntities())
{
throw new NotImplementedException();
//var dbQuestion = Mapper.Map<QuestionBase>()
}
}
public async Task<StudentModel> GetStudent(int id)
{
using (var dbModel = new EduTestEntities())
{
var st = await dbModel.Students
.Include(s => s.User)
.FirstOrDefaultAsync(s => s.UserId == id);
return Mapper.Map<StudentModel>(st);
}
}
public async Task<int> GetTotalCount4Teacher(int teacherId)
{
using (var dbModel = new EduTestEntities())
{
var teacherCourses = (await GetUserCoursesAsync(dbModel, teacherId))
.Select(c => c.Id);
return await dbModel.Students
.CountAsync(s => s.User.Courses.Any(
c => teacherCourses.Contains(c.Id)));
}
}
public async Task<IEnumerable<StudentModel>> GetStudents(int page, int perPage)
{
using (var dbModel = new EduTestEntities())
{
var students = await dbModel.Students
.Include(s => s.User)
.Include(s => s.User.PersonalDetail)
.OrderBy(s => s.UserId)
.Skip(page * perPage)
.Take(perPage)
.ToListAsync();
return base.Mapper.Map<IEnumerable<StudentModel>>(students);
}
}
public async Task<IEnumerable<CourseModel>> GetCourses(int page, int perPage)
{
using (var dbContext = new EduTestEntities())
{
var courses = await dbContext.Courses
.Include(c => c.Modules
.Select(m => m.Chapters
.Select(ch => ch.Topics)))
.OrderBy(c => c.Name)
.Skip(page)
.Take(perPage)
.ToListAsync();
return courses.Select(ObjectMapper.MapCourse);
}
}
public async Task<CourseModel> GetCourse(int id)
{
using (var dbContext = new EduTestEntities())
{
var course = await dbContext.Courses
.Include(c => c.Modules
.Select(m => m.Chapters
.Select(ch => ch.Topics)))
.FirstOrDefaultAsync(c => c.Id == id);
if (course == null)
throw new ObjectNotFoundException("Course with id " + id + " was not found in the database");
return ObjectMapper.MapCourse(course);
}
}
public async void RemoveModule(int id)
{
using (var dbContext = new EduTestEntities())
{
var module = await dbContext.Modules.FirstOrDefaultAsync(u => u.Id == id);
if (module == null)
throw new ObjectNotFoundException("ModulesRepository.RemoveModule: Module not found");
if (module.Chapters.Any() || await dbContext.Tests.AnyAsync(t => t.ParentId == id))
throw new InvalidOperationException("ModulesRepository.RemoveModule cannot remove module as it has children");
dbContext.Modules.Remove(module);
if (await dbContext.SaveChangesAsync() == 0)
throw new Exception("ModulesRepository.RemoveModule: Could not module from db");
}
}
public async void RemoveChapter(int id)
{
using (var dbContext = new EduTestEntities())
{
var chapter = await dbContext.Chapters.FirstOrDefaultAsync(u => u.Id == id);
if (chapter == null)
throw new ObjectNotFoundException("ChaptersRepository.RemoveChapter: Chapter not found");
if (chapter.Topics.Any() || await dbContext.Tests.AnyAsync(t => t.ParentId == id))
throw new InvalidOperationException("ChaptersRepository.RemoveChapter cannot remove chapter as it has children");
dbContext.Chapters.Remove(chapter);
if (await dbContext.SaveChangesAsync() == 0)
throw new Exception("ChaptersRepository.RemoveChapter: Could not remove chapter from db");
}
}
public async void RemoveTopic(int id)
{
using (var dbContext = new EduTestEntities())
{
var topic = await dbContext.Topics.FirstOrDefaultAsync(u => u.Id == id);
if (topic == null)
throw new ObjectNotFoundException("TopicsRepository.RemoveTopic: Topic not found");
if (topic.QuestionBases.Any() || await dbContext.Tests.AnyAsync(t => t.ParentId == id))
throw new InvalidOperationException("TopicsRepository.RemoveTopic cannot remove topic as it has children");
dbContext.Topics.Remove(topic);
if (await dbContext.SaveChangesAsync() == 0)
throw new Exception("TopicsRepository.RemoveTopic: Could not remove topic from db");
}
}
public async Task<int> AddChapter(int moduleId, ChapterModel chapterModel)
{
using (var dbContext = new EduTestEntities())
{
var chapter = new Chapter()
{
Name = chapterModel.Name,
ModuleId = moduleId
};
dbContext.Chapters.Add(chapter);
if (await dbContext.SaveChangesAsync() == 0)
throw new Exception("ChapterRepository.AddChapter: Could not add user to db");
return chapter.Id;
}
}
public async Task<int> AddTopic(int chapterId, TopicModel topicModel)
{
using (var dbContext = new EduTestEntities())
{
var topic = new Topic()
{
Name = topicModel.Name,
ChapterId = chapterId
};
dbContext.Topics.Add(topic);
if (await dbContext.SaveChangesAsync() == 0)
throw new Exception("TopicRepository.AddTopic: Could not add topic to db");
return topic.Id;
}
}
public async Task<int> AddModule(int courseId, ModuleModel moduleModel)
{
using (var dbContext = new EduTestEntities())
{
var module = new Module()
{
Name = moduleModel.Name,
CourseId = courseId
};
dbContext.Modules.Add(module);
if (await dbContext.SaveChangesAsync() == 0)
throw new Exception("UserRepository.AddUser: Could not add user to db");
return module.Id;
}
}
public async Task<IEnumerable<StudentModel>> GetStudents4Teacher(int teacherId, int page, int perPage)
{
using (var dbModel = new EduTestEntities())
{
var teacherCourses = (await GetUserCoursesAsync(dbModel, teacherId))
.Select(c => c.Id);
var students = await dbModel.Students
.Include(s => s.User)
.Include(s => s.User.PersonalDetail)
.Where(s => s.User.Courses.Any(c => teacherCourses.Contains(c.Id)))
.OrderBy(s => s.UserId)
.Skip(page * perPage)
.Take(perPage)
.ToListAsync();
return base.Mapper.Map<IEnumerable<StudentModel>>(students);
}
}
public async Task<int> AddStudent(StudentModel student)
{
using (var dbModel = new EduTestEntities())
{
var dbStud = Mapper.Map<Student>(student);
dbStud.User.Password = "******"; // TODO add logic for generating and sharing password
if (dbStud.User.Roles != null && dbStud.User.Roles.Any())
{
foreach (var role in dbStud.User.Roles)
dbModel.Entry(role).State = EntityState.Unchanged;
}
if (dbStud.User.Courses != null && dbStud.User.Courses.Any())
{
foreach (var course in dbStud.User.Courses)
dbModel.Entry(course).State = EntityState.Unchanged;
}
dbModel.Students.Add(dbStud);
await dbModel.SaveChangesAsync();
return dbStud.UserId;
}
}
public async Task<UserModel> GetUser(int id)
{
using (var dbContext = new EduTestEntities())
{
var user = await dbContext.Users
.Include(u => u.Roles)
.FirstOrDefaultAsync(u => u.Id == id);
if (user == null)
return null;
//var userModel = new UserModel()
//{
// Id = user.Id,
// FirstName = user.FirstName,
// LastName = user.LastName,
// Email = user.Email,
// Roles = user.Roles.Select(r => r.Name).ToArray()
//};
var userModel = _mapper.Map<UserModel>(user);
return userModel;
}
}
public async Task<int> AddUser(UserModel userModel)
{
using (var dbContext = new EduTestEntities())
{
//var user = new User()
//{
// //FirstName = userModel.FirstName,
// //LastName = userModel.LastName,
// //Email = userModel.Email, // personal details
// //Password = userModel.Password, // Need to decide
// Roles = ObjectMapper.MapRoles(userModel.Roles).ToList()
//};
var user = _mapper.Map<User>(userModel);
user.Password = "******"; // TODO should decide how to add pass
dbContext.Users.Add(user);
if (await dbContext.SaveChangesAsync() < 0)
throw new Exception("UserRepository.AddUser: Could not add user to db");
return user.Id;
}
}
static void Main(string[] args)
{
using (var context = new EduTestEntities())
{
//var users = context.Users.ToList();
//foreach (var user in users)
//{
// Console.WriteLine(user.Id + " " + user.FirstName + " " + user.LastName);
// Console.Write("Roles: ");
// foreach (var role in user.Roles)
// {
// Console.Write("{0} ", role.Name);
// }
// Console.WriteLine("\n");
// var course = user.Courses.FirstOrDefault();
//}
var user = context.Users.First();
var roles = context.Roles.ToEnumerable();
user.Roles.Clear();
foreach (var ro in roles)
{
user.Roles.Add(ro);
}
//user.Roles = roles.ToList();
context.SaveChanges();
var modules = context.Modules.Include(m => m.Chapters).ToList();
foreach (var module in modules)
{
Console.WriteLine(module.Name + "\n");
}
}
}
public async Task<int> AddCourse(CourseModel courseModel)
{
using (var dbContext = new EduTestEntities())
{
var course = new Course()
{
Name = courseModel.Name
};
dbContext.Courses.Add(course);
if (await dbContext.SaveChangesAsync() < 0)
throw new Exception("CoursesRepository.AddCourse: Could not add course to db");
return course.Id;
}
}
public Task<bool> ExistsCourse(int courseId)
{
using (var dbContext = new EduTestEntities())
{
return dbContext.Courses.AnyAsync(c => c.Id == courseId);
}
}
public Task<int> GetNumberOfCourses(int userId)
{
using (var dbContext = new EduTestEntities())
{
return dbContext.Courses.CountAsync(c => c.Users.Any(u => u.Id == userId));
}
}
public Task<int> GetNumberOfCourses()
{
using (var dbContext = new EduTestEntities())
{
return dbContext.Courses.CountAsync();
}
}
public async void RemoveCourse(int id)
{
using (var dbContext = new EduTestEntities())
{
var course = dbContext.Courses.FirstOrDefault(crs => crs.Id == id);
if (course == null)
throw new ObjectNotFoundException("CoursesRepository.RemoveCourse: Course not found");
if (course.Modules.Any() || await dbContext.Tests.AnyAsync(t => t.ParentId == id))
throw new InvalidOperationException("CoursesRepository.RemoveCourse cannot remove course as it has children");
dbContext.Courses.Remove(course);
if (await dbContext.SaveChangesAsync() < 0)
throw new Exception("CoursesRepository.RemoveCourse: Could not remove course from db");
}
}
public async void RemoveDeepCourse(int id)
{
throw new NotImplementedException();
using (var dbContext = new EduTestEntities())
{
var course = dbContext.Courses
.Include(c => c.Modules
.Select(m => m.Chapters
.Select(ch => ch.Topics)))
.First(crs => crs.Id == id);
foreach (var module in course.Modules)
{
foreach (var chapter in module.Chapters)
dbContext.Topics.RemoveRange(chapter.Topics);
dbContext.Chapters.RemoveRange(module.Chapters);
}
dbContext.Modules.RemoveRange(course.Modules);
dbContext.Courses.Remove(course);
if (await dbContext.SaveChangesAsync() < 0)
throw new Exception("CoursesRepository.RemoveDeepCourse: Could not remove course from db");
}
}
