private AnsweredNotificationViewModel GetAnsweredNotificationModel(Answer answer, bool seen)
{
var type = AnsweredNotificationViewModel.AnswerNotificationTypeEnum.OtherAnswers;
if (IsCurrentUser(answer.QuestionDetail.AskedBy.UserName))
{
type = AnsweredNotificationViewModel.AnswerNotificationTypeEnum.CurrentUserAnswer;
} else if (_notificationsService.IsCurrentFollowing(answer.User.UserName))
{
type = AnsweredNotificationViewModel.AnswerNotificationTypeEnum.FollowingAnswer;
}
var model = new AnsweredNotificationViewModel(answer, seen)
{
AnswerId = answer.AnswerId,
QuestionDetailId = answer.QuestionDetailId,
TimeStamp = answer.TimeStamp,
AnswerNotificationType = type,
AnsweringUser = GetProfileFor(answer.User),
AskingUser = GetProfileFor(answer.QuestionDetail.AskedBy)
};
return model;
}
public Answer SaveAnswer(string answeringUserName, string content, int questionDetailId)
{
if (string.IsNullOrWhiteSpace(content))
{
return null;
}
var answeringUser = GetUserWithName(answeringUserName);
if (answeringUser == null)
{
return null;
}
var questionDetail = _context.QuestionDetails.FirstOrDefault(qstDetail => qstDetail.QuestionDetailId == questionDetailId);
if (questionDetail == null)
{
return null;
}
var answer = new Answer()
{
Content = content,
Active = true,
QuestionDetailId = questionDetailId,
QuestionDetail = questionDetail,
TimeStamp = DateTime.Now,
User = answeringUser
};
try
{
using (var transaction = _context.Database.BeginTransaction())
{
questionDetail.Answered = true;
questionDetail.SeenByUser = true;
_context.Answers.Add(answer);
_context.SaveChanges();
answer.AddNotification();
_context.SaveChanges();
transaction.Commit();
return answer;
}
}
catch (Exception e)
{
return null;
}
}
private List<CommentViewModel> ExtractFirstCommentViewModels(Answer answer)
{
var comments = answer.Comments.Where(comment => comment.Active).OrderBy(comment => comment.TimeStamp).Take(CommentPageSize);
return GetCommentModels(comments.ToList());
}
private IQueryable<Comment> GetCommentsFor(Answer answer)
{
return _context.Comments.Where(cmnt => cmnt.AnswerId == answer.AnswerId && cmnt.Active);
}
private AnswerProfileViewModel GetAnswerModel(Answer answer, bool allComments)
{
var likesService = new LikesService(_context, _pageSize);
var comments = allComments ? GetCommentModels(GetCommentsFor(answer).ToList()) : ExtractFirstCommentViewModels(answer);
return new AnswerProfileViewModel()
{
Answer = answer,
AnswerParagraphs = answer.Content.SplitLines(),
QuestionParagraphs = answer.QuestionDetail.Question.Content.SplitLines(),
AskerAvatarUrl = GetAvatarUrl(answer.QuestionDetail.AskedBy),
ReplierAvatarUrl = GetAvatarUrl(answer.User),
LikesModel = new AnswerLikeViewModel()
{
HasLiked = likesService.HasLikedAnswer(GetCurrentUserName(), answer.AnswerId),
LikeCount = likesService.GetLikesCount(answer.AnswerId),
AnswerId = answer.AnswerId
},
Comments = comments,
CommentsMoreButton = new MoreButtonViewModel()
{
HasMore = !allComments
}
};
}
private ActionResult GetAnswerNotificationPartialView(Answer answer, bool seen)
{
var model = GetAnsweredNotificationModel(answer, seen);
return PartialView("AnswerNotification", model);
}
