public static CommentModel ToModel(Comment commentEntity)
{
CommentModel commentModel = new CommentModel()
{
Author = commentEntity.Author.DisplayName,
PostDate = commentEntity.PostDate,
Text = commentEntity.Text
};
return commentModel;
}
public static Comment ToEntity(CommentModel commentModel, User author)
{
Comment commentEntity = new Comment()
{
Author = author,
PostDate = DateTime.Now,
Text = commentModel.Text
};
return commentEntity;
}
public HttpResponseMessage AddComment(int postId, CommentModel comment,
[ValueProvider(typeof(HeaderValueProviderFactory<string>))] string sessionKey)
{
var responseMsg = this.PerformOperationAndHandleExceptions(() =>
{
var context = new BloggingSystemContext();
var user = GetAndValidateUser(sessionKey, context);
var postEntity = context.Posts.FirstOrDefault(p => p.Id == postId);
var commentEntity = new Comment() { PostDate = DateTime.Now, Text = comment.Text, User = user };
postEntity.Comments.Add(commentEntity);
context.SaveChanges();
var response = this.Request.CreateResponse(HttpStatusCode.OK);
return response;
});
return responseMsg;
}
public HttpResponseMessage CreateComment(int postId, [FromBody] CommentDto value)
{
try
{
var sessionKey = ApiControllerHelper.GetHeaderValue(Request.Headers, "X-SessionKey");
if (sessionKey == null)
{
throw new ArgumentNullException("No session key provided in the request header!");
}
Validate(value.Text, "text");
var context = new BloggingSystemContext();
using (context)
{
var user = context.Users.FirstOrDefault(u => u.SessionKey == sessionKey);
if (user == null)
{
throw new ArgumentException("Users must be logged in to leave comments!");
}
var post = context.Posts.FirstOrDefault(p => p.Id == postId);
if (post == null)
{
throw new ArgumentException("Invalid post id: " + postId);
}
var newComment = new Comment()
{
Text = value.Text,
PostDate = DateTime.Now,
Author = user,
Post = post
};
context.Comments.Add(newComment);
context.SaveChanges();
var response = Request.CreateResponse(HttpStatusCode.OK);
return response;
}
}
catch (Exception ex)
{
var errorResponse = Request.CreateErrorResponse(HttpStatusCode.BadRequest, ex.Message);
throw new HttpResponseException(errorResponse);
}
}
public HttpResponseMessage PutComment(int postId, [FromBody]Comment comment, string sessionKey)
{
var responseMsg = this.PerformOperationAndHandleExceptions(
() =>
{
var context = new BlogContext();
ValidateSessionKey(sessionKey, context);
using (context)
{
var currPost = context.Posts.FirstOrDefault(p => p.Id == postId);
if (currPost == null)
{
throw new InvalidOperationException("Post does not exist!");
}
Comment newComment = new Comment()
{
Id = comment.Id,
Date = comment.Date,
Post = comment.Post,
Text = comment.Text,
User = comment.User
};
currPost.Comments.Add(newComment);
context.Posts.Attach(currPost);
context.Entry(currPost).CurrentValues.SetValues(currPost);
context.SaveChanges();
}
return this.Request.CreateResponse(HttpStatusCode.Created);
});
return responseMsg;
}
public HttpResponseMessage PutCommentOnPost(int postId, CreateCommentModel model)
{
var responseMessage = this.PerformOperationAndHandleExceptions(() =>
{
var sessionKey = this.GetHeaderValue(Request.Headers, "sessionKey");
var dbContext = new BlogContext();
// dbContext.Configuration.ProxyCreationEnabled = false;
using (dbContext)
{
var user = dbContext.Users.FirstOrDefault(usr => usr.SessionKey == sessionKey);
if (user == null)
{
throw new ArgumentException("Users must be logged when create a new comment!");
}
var post = dbContext.Posts.FirstOrDefault(pst => pst.Id == postId);
var newComment = new Comment()
{
Text = model.Text,
CommentDate = DateTime.Now,
User = user,
Post=post
};
dbContext.Comments.Add(newComment);
dbContext.SaveChanges();
var response =
this.Request.CreateResponse(HttpStatusCode.OK);
return response;
}
});
return responseMessage;
}
public HttpResponseMessage PutNewComment([FromUri] int postId, [FromUri] string sessionKey, [FromBody] CommentModel model)
{
var responseMsg = this.PerformOperationAndHandleExceptions(
() =>
{
var context = new BlogContext();
using (context)
{
var user = context.Users.FirstOrDefault(usr => usr.SessionKey == sessionKey);
if (user == null)
{
throw new InvalidOperationException("Users doesn't exists");
}
var post = context.Posts.FirstOrDefault(p => p.Id == postId);
if (post == null)
{
throw new InvalidOperationException("This post doesn't exists");
}
Comment newComment = new Comment();
newComment.Text = model.Text;
newComment.PostDate = DateTime.Now;
newComment.CommentedBy = user;
newComment.Post = post;
post.Comments.Add(newComment);
context.Comments.Add(newComment);
context.SaveChanges();
var response = this.Request.CreateResponse(HttpStatusCode.OK);
return response;
}
});
return responseMsg;
}
public HttpResponseMessage PutComment(CommentCreatedModel leavedCommentModel, int postId,
[ValueProvider(typeof(HeaderValueProviderFactory<string>))] string sessionKey)
{
var context = new BloggingSystemContext();
using (context)
{
var entityComment = context.Posts.FirstOrDefault(p => p.Id == postId);
var commentModel = new CommentCreatedModel()
{
Id = entityComment.Id,
Text = leavedCommentModel.Text
};
var newComment = new Comment()
{
Text = commentModel.Text,
PostDate = DateTime.Now,
Id = commentModel.Id,
};
context.Comments.Add(newComment);
context.SaveChanges();
return this.Request.CreateResponse(HttpStatusCode.OK);
}
}
public HttpResponseMessage PutNewComment(
int postId,
[FromBody] CommentModel model,
[ValueProvider(typeof(HeaderValueProviderFactory<string>))] string sessionKey)
{
var responseMsg = this.PerformOperationAndHandleExceptions(() =>
{
ValidateCommentText(model.Text);
var context = new BloggingSystemContext();
using (context)
{
var user = GetValidUser(sessionKey);
if (user == null)
{
throw new InvalidOperationException("You are not logged in!");
}
var post = context.Posts.Where(ps => ps.Id == postId).FirstOrDefault();
if (post == null)
{
throw new InvalidOperationException("No such post exists");
}
Comment newComment = new Comment()
{
Text = model.Text,
CommentDate = DateTime.Now,
User = user,
Post = post
};
context.Comments.Add(newComment);
context.SaveChanges();
return Request.CreateResponse(HttpStatusCode.Created);
}
});
return responseMsg;
}
