public static async Task CreateFollowNotice(UserFollow userFollow, BSDNContext context)
{
User follower = await context.Users.FirstOrDefaultAsync(u => u.UserId == userFollow.FollowerId);
User following = await context.Users.FirstOrDefaultAsync(u => u.UserId == userFollow.FollowingId);
Notice notice = new Notice(following.UserId, $@"New Follower|{follower.Nickname}|{follower.UserId}", null);
await context.AddAsync(notice);
await context.SaveChangesAsync();
}
public async Task <IActionResult> Post(
string type,
int id,
[FromBody] Comment comment,
[FromQuery(Name = "token")] string token)
{
// 先评论是否有正文
// 再检查Token是否有效
// 再检查评论类型
// 再检查文章/评论是否存在
int replyCommentId = 0;
Comment commentResult = null;
ModelResult <CommentInfo> result = TokenUtils.CheckToken <CommentInfo>(token, _context);
if (result != null)
{
return(BadRequest(result));
}
if (comment.Content == null || comment.CommentId != 0)
{
result = new ModelResult <CommentInfo>(400, new CommentInfo(comment), "Invalid Comment");
return(BadRequest(result));
}
comment.PublishDate = DateTime.Now;
if (type == "article" || type == "reply")
{
Article articleResult;
if (type == "article")
{
if (comment.ArticleId == 0)
{
comment.ArticleId = id;
}
if (id == 0)
{
id = comment.ArticleId;
}
articleResult = await _context.Articles
.FirstOrDefaultAsync(a => a.ArticleId == id);
}
else // if (type == "reply")
{
commentResult = await _context.Comments
.FirstOrDefaultAsync(c => c.CommentId == id);
if (commentResult == null)
{
result = new ModelResult <CommentInfo>(404, null, "Comment to Reply Not Exists");
return(BadRequest(result));
}
replyCommentId = commentResult.CommentId;
articleResult = await _context.Articles
.FirstOrDefaultAsync(a => a.ArticleId == commentResult.ArticleId);
comment.ArticleId = articleResult.ArticleId;
}
Session sessionResult = await _context.Sessions
.FirstOrDefaultAsync(s => s.SessionToken == token);
if (articleResult == null)
{
result = new ModelResult <CommentInfo>(404, null, "Article Not Exists");
return(BadRequest(result));
}
comment.UserId = sessionResult.SessionUserId;
comment.User = await _context.Users
.FirstOrDefaultAsync(u => u.UserId == comment.UserId);
comment.ArticleId = id;
comment.Article = articleResult;
await _context.AddAsync(comment);
await _context.SaveChangesAsync();
result = new ModelResult <CommentInfo>(201, new CommentInfo(comment), "Commented");
}
else
{
result = new ModelResult <CommentInfo>(405, null, "Undefined Comment Type");
return(BadRequest(result));
}
if (type == "reply" && replyCommentId != 0)
{
await _context.AddAsync(new CommentReply
{
CommentId = comment.CommentId,
RepliedCommentId = replyCommentId
});
await _context.SaveChangesAsync();
result.Message = "Replied";
}
int noticeUserId = 0;
if (type == "article")
{
noticeUserId = comment.UserId;
}
else
{
if (commentResult != null)
{
noticeUserId = commentResult.UserId;
}
}
await NoticeUtils.CreateCommentNotice(comment, _context, noticeUserId, type);
return(Ok(result));
}