public HttpResponseMessage RegisterUser([FromBody]UserRegisterModel user)
{
HttpResponseMessage responseMessage = this.PerformOperation(() =>
{
UserValidator.ValidateAuthenticationCode(user.AuthCode);
UserValidator.ValidateNickname(user.Nickname);
UserValidator.ValidateUsername(user.Username);
var context = new TelerikAcademyForumContext();
using (context)
{
User exstingUserEntity = context.Users.FirstOrDefault<User>(
u => u.Username == user.Username.ToLower() || u.Nickname.ToLower() == user.Nickname.ToLower());
if (exstingUserEntity != null)
{
throw new InvalidOperationException("User already exists!");
}
User newUserEntity = UsersMapper.ToEntity(user);
context.Users.Add(newUserEntity);
context.SaveChanges();
newUserEntity.SessionKey = UserValidator.GenerateSessionKey(newUserEntity.ID);
context.SaveChanges();
UserLoggedModel loggedUser = UsersMapper.ToUserLoggedModel(newUserEntity);
return this.Request.CreateResponse(HttpStatusCode.Created, loggedUser);
}
});
return responseMessage;
}
public HttpResponseMessage LoginUser([FromBody]UserLoginModel user)
{
HttpResponseMessage responseMessage = this.PerformOperation(() =>
{
UserValidator.ValidateAuthenticationCode(user.AuthCode);
UserValidator.ValidateUsername(user.Username);
var context = new TelerikAcademyForumContext();
using (context)
{
var userEntity = context.Users.FirstOrDefault(
u => u.AuthCode == user.AuthCode && u.Username == user.Username.ToLower());
if (userEntity == null)
{
throw new InvalidOperationException("User not registered!");
}
userEntity.SessionKey = UserValidator.GenerateSessionKey(userEntity.ID);
context.SaveChanges();
UserLoggedModel loggedUser = UsersMapper.ToUserLoggedModel(userEntity);
return this.Request.CreateResponse(HttpStatusCode.OK, loggedUser);
}
});
return responseMessage;
}
public IQueryable<PostModel> GetAll(
[ValueProvider(typeof(HeaderValueProviderFactory<string>))]string sessionKey)
{
var allPostModels = this.PerformOperation(() =>
{
UserValidator.ValidateSessionKey(sessionKey);
var context = new TelerikAcademyForumContext();
using (context)
{
var postModels = new List<PostModel>();
var postEntities = context.Posts
.Include("Author").Include("Thread").Include("Votes").Include("Comments")
.OrderByDescending(p => p.PostDate);
foreach (var postEntity in postEntities)
{
postModels.Add(PostsMapper.ToModel(postEntity));
}
return postModels.AsQueryable<PostModel>();
}
});
return allPostModels;
}
public static Category CreateOrLoadCategory(string category, TelerikAcademyForumContext context)
{
string categoryLowerCase = category.ToLower().Trim();
Category existingCategory = context.Categories
.FirstOrDefault<Category>(c => c.Name.ToLower() == categoryLowerCase);
if (existingCategory != null)
{
return existingCategory;
}
Category newCategory = new Category() { Name = category };
context.Categories.Add(newCategory);
context.SaveChanges();
return newCategory;
}
public IQueryable<string> GetAll(
[ValueProvider(typeof(HeaderValueProviderFactory<string>))]string sessionKey)
{
var categoryModels = this.PerformOperation(() =>
{
UserValidator.ValidateSessionKey(sessionKey);
var context = new TelerikAcademyForumContext();
var categories =
from category in context.Categories
select category.Name;
return categories;
});
return categoryModels;
}
public static Thread ToEntity(
ThreadModel threadModel,
string sessionKey,
TelerikAcademyForumContext context)
{
Thread threadEntity = new Thread()
{
Title = threadModel.Title,
Content = threadModel.Content,
DateCreated = DateTime.Now,
Author = context.Users.FirstOrDefault<User>(u => u.SessionKey == sessionKey)
};
foreach (var category in threadModel.Categories)
{
threadEntity.Categories.Add(Extensions.CreateOrLoadCategory(category, context));
}
return threadEntity;
}
public HttpResponseMessage Add([FromBody]ThreadModel thread,
[ValueProvider(typeof(HeaderValueProviderFactory<string>))]string sessionKey)
{
HttpResponseMessage httpResponse = this.PerformOperation(() =>
{
UserValidator.ValidateSessionKey(sessionKey);
var context = new TelerikAcademyForumContext();
using (context)
{
var newThreadEntity = ThreadsMapper.ToEntity(thread, sessionKey, context);
context.Threads.Add(newThreadEntity);
context.SaveChanges();
thread.ID = newThreadEntity.ID;
}
var response = this.Request.CreateResponse(HttpStatusCode.Created, thread);
return response;
});
return httpResponse;
}
public HttpResponseMessage VotePost(int postID, [FromBody]int vote,
[ValueProvider(typeof(HeaderValueProviderFactory<string>))]string sessionKey)
{
var httpResponse = this.PerformOperation(() =>
{
UserValidator.ValidateSessionKey(sessionKey);
if (vote < 0 || vote > 5)
{
throw new ArgumentOutOfRangeException("vote", "Vote cannot be less than 0 and more than 5!");
}
var context = new TelerikAcademyForumContext();
using (context)
{
var post = context.Posts.Find(postID);
if (post == null)
{
var httpErrorResponse = this.Request.CreateErrorResponse(
HttpStatusCode.NotFound, "Post with provided ID not found!");
throw new HttpResponseException(httpErrorResponse);
}
post.Votes.Add(new Vote()
{
User = context.Users.FirstOrDefault<User>(u => u.SessionKey == sessionKey),
Value = vote
});
context.SaveChanges();
}
return this.Request.CreateResponse(HttpStatusCode.Created, vote);
});
return httpResponse;
}
public IQueryable<ThreadModel> GetAll(
[ValueProvider(typeof(HeaderValueProviderFactory<string>))]string sessionKey)
{
IQueryable<ThreadModel> allThreadModels = this.PerformOperation(() =>
{
UserValidator.ValidateSessionKey(sessionKey);
var threadModels = new List<ThreadModel>();
using (var context = new TelerikAcademyForumContext())
{
var threadEntities = context.Threads
.Include("Categories").Include("Posts").Include("Author")
.OrderByDescending(thr => thr.DateCreated);
foreach (var threadEntity in threadEntities.ToList())
{
threadModels.Add(ThreadsMapper.ToModel(threadEntity));
}
}
return threadModels.AsQueryable<ThreadModel>();
});
return allThreadModels;
}
public HttpResponseMessage LogoutUser(
[ValueProvider(typeof(HeaderValueProviderFactory<string>))]string sessionKey)
{
HttpResponseMessage responseMessage = this.PerformOperation(() =>
{
UserValidator.ValidateSessionKey(sessionKey);
var context = new TelerikAcademyForumContext();
using (context)
{
var loggedUserEntity = context.Users.FirstOrDefault<User>(u => u.SessionKey == sessionKey);
if (loggedUserEntity == null)
{
throw new InvalidOperationException("Invalid user!");
}
loggedUserEntity.SessionKey = null;
context.SaveChanges();
}
return this.Request.CreateResponse(HttpStatusCode.NoContent);
});
return responseMessage;
}
public HttpResponseMessage CommentPost(int postID, [FromBody]string comment,
[ValueProvider(typeof(HeaderValueProviderFactory<string>))]string sessionKey)
{
var httpResponse = this.PerformOperation(() =>
{
UserValidator.ValidateSessionKey(sessionKey);
if (comment == null)
{
throw new ArgumentNullException("comment", "Comment cannot be null!");
}
var context = new TelerikAcademyForumContext();
using (context)
{
var post = context.Posts.Find(postID);
if (post == null)
{
var httpErrorResponse = this.Request.CreateErrorResponse(
HttpStatusCode.NotFound, "Post with provided ID not found!");
throw new HttpResponseException(httpErrorResponse);
}
post.Comments.Add(new Comment()
{
Author = context.Users.FirstOrDefault<User>(u => u.SessionKey == sessionKey),
CommentDate = DateTime.Now,
Content = comment
});
context.SaveChanges();
}
return this.Request.CreateResponse(HttpStatusCode.Created, comment);
});
return httpResponse;
}
