protected override async Task <PostView> HandleInput(PostUpdateParams input)
{
using (var connection = database.GetConnection()) {
IPostRepo postRepo = database.GetRepo <IPostRepo>(connection);
Post? post = await postRepo.FindById(input.PostId);
if (post == null)
{
throw new InvalidOperationException();
}
if (!(await this.postPermissionHandler.HasPermission(input.User, PermissionAction.UpdatePost, post)))
{
throw new AuthorizationException();
}
if (post.Type == PostType.Link)
{
throw new InvalidOperationException("Link posts can't be updated.");
}
if (post.WasDeleted)
{
throw new InvalidOperationException("Post has already been deleted.");
}
post.Body = input.Body;
await postRepo.Update(post);
return(postMapper.Map(post));
}
}
protected override async Task <PostView?> HandleInput(PostCreateParams input)
{
using (var connection = database.GetConnection()) {
ISpaceRepo spaceRepo = database.GetRepo <ISpaceRepo>(connection);
IPostRepo postRepo = database.GetRepo <IPostRepo>(connection);
IVoteRepo voteRepo = database.GetRepo <IVoteRepo>(connection);
Space?space = await spaceRepo.FindByName(input.Space);
if (space == null)
{
throw new InvalidOperationException($"No space with name ${input.Space} found.");
}
using (var transaction = connection.BeginTransaction()) {
Post post = new Post()
{
Type = input.Type,
Title = input.Title,
Body = input.Body,
User = input.User,
CreationDate = DateTime.UtcNow,
Space = space
};
if (post.Type == PostType.Link && !System.Text.RegularExpressions.Regex.IsMatch(post.Body, Regex.UrlProtocol))
{
post.Body = $"http://{post.Body}";
}
// Not liking these count caches. Makes no sense?
post.Upvotes++;
await postRepo.Add(post);
Vote upvote = new Vote()
{
User = input.User,
ResourceId = post.Id,
ResourceType = VoteResourceType.Post,
Direction = VoteDirection.Up
};
await voteRepo.Add(upvote);
post.Vote = upvote;
transaction.Commit();
return(postMapper.Map(post));
}
}
}
protected override async Task <PagedResultSet <PostView> > HandleInput(FindByValueParams <string> input)
{
using (var connection = database.GetConnection()) {
IPostRepo postRepo = database.GetRepo <IPostRepo>(connection);
IVoteRepo voteRepo = database.GetRepo <IVoteRepo>(connection);
PagedResultSet <Post> posts = await postRepo.FindByUser(input.Value, input.Pagination?.PageNumber ?? 0, input.Pagination?.PageSize ?? Post.PageSize);
if (input.User != null)
{
foreach (Post p in posts)
{
p.Vote = await voteRepo.FindByUserAndPost(input.User.Username, p.Id);
}
}
return(new PagedResultSet <PostView>(posts.Items.Select(p => postMapper.Map(p)), posts.Pagination));
}
}
protected async override Task <PostView?> HandleInput(FindByValueParams <int> input)
{
using (var connection = database.GetConnection()) {
IPostRepo postRepo = database.GetRepo <IPostRepo>(connection);
IVoteRepo voteRepo = database.GetRepo <IVoteRepo>(connection);
Post?post = await postRepo.FindById(input.Value);
if (post == null)
{
return(null);
}
//Pull in the vote if needed.
if (input.User != null)
{
post.Vote = await voteRepo.FindByUserAndPost(input.User.Username, input.Value);
}
return(postMapper.Map(post));
}
}
protected override async Task <PostView?> HandleInput(PostDeleteParams input)
{
using (var connection = database.GetConnection()) {
IPostRepo postRepo = database.GetRepo <IPostRepo>(connection);
Post?p = await postRepo.FindById(input.PostId);
if (p == null)
{
throw new InvalidOperationException();
}
if (!(await this.permissionHandler.HasPermission(input.User, PermissionAction.DeletePost, p)))
{
throw new AuthorizationException();
}
await postRepo.Delete(p);
return(postMapper.Map(p));
}
}