public async Task<HttpResponseMessage> PostToGroupById(AddGroupPostBindingModel model)
{
if (!ModelState.IsValid)
{
return await this.BadRequest(this.ModelState).ExecuteAsync(new CancellationToken());
}
var group = this.Data.Groups.Find(model.groupId);
if (group == null)
{
return await this.NotFound().ExecuteAsync(new CancellationToken());
}
var currentUserId = User.Identity.GetUserId();
var currentUser = this.Data.Users.FirstOrDefault(x => x.Id == currentUserId);
if (currentUser == null)
{
return await this.BadRequest("Invalid user token! Please login again!").ExecuteAsync(new CancellationToken());
}
if (!group.Members.Contains(currentUser) && group.Owner != currentUser)
{
return await this.BadRequest("Not allowed. User is not member of group.")
.ExecuteAsync(new CancellationToken());
}
var newPost = new GroupPost()
{
Content = model.postContent,
Author = currentUser,
PostedOn = DateTime.Now
};
group.Posts.Add(newPost);
this.Data.SaveChanges();
var dbPost = this.Data.GroupPosts.FirstOrDefault(p => p.Id == newPost.Id);
var postReturnView = new
{
Id = dbPost.Id,
AuthorId = dbPost.Author.Id,
AuthorUsername = dbPost.Author.UserName,
AuthorProfileImage = dbPost.Author.ProfilePicture,
GroupId = group.Id,
PostContent = dbPost.Content,
Date = dbPost.PostedOn,
LikesCount = 0,
Liked = false,
TotalCommentsCount = 0,
Comments = new List<CommentViewModel>()
};
return await this.Ok(postReturnView).ExecuteAsync(new CancellationToken());
}
public static object CreateGroupPostPreview(ApplicationUser currentUser, GroupPost post)
{
return new
{
Id = post.Id,
AuthorId = post.Author.Id,
AuthorUsername = post.Author.UserName,
AuthorProfileImage = post.Author.ProfilePicture,
WallOwnerId = post.Owner.Id,
PostContent = post.Content,
Date = post.PostedOn,
LikesCount = post.Likes.Count,
Liked = post.Likes.Any(l => l.Author == currentUser),
TotalCommentsCount = post.Comments.Count,
Comments = post.Comments
.OrderByDescending(c => c.PostedOn)
.AsQueryable()
.Select(c => CommentViewModel.CreatePreview(currentUser, c))
.ToList()
};
}
public static void PostToGroup(int fromUserId, int toGroupId, string content)
{
var context = new SocialNetworkContext();
var sender = context.Users.Find(fromUserId);
var recipient = context.Groups.Find(toGroupId);
var post = new GroupPost()
{
Content = content,
Author = sender,
PostedOn = DateTime.Now,
};
recipient.Posts.Add(post);
context.SaveChanges();
}