public ActionResult Like(int?id)
{
if (id == null)
{
return(new HttpStatusCodeResult(HttpStatusCode.BadRequest));
}
var answer = this.Data.Answers.GetById(id);
if (answer == null || answer.IsDeleted)
{
return(this.HttpNotFound());
}
var userId = this.User.Identity.GetUserId();
var isLiked = this.Data.AnswerLikes.All().Any(l => l.UserId == userId && l.AnswerId == id && !l.IsDeleted);
var likesCount = this.Data.AnswerLikes.All().Count(a => a.AnswerId == id);
var model = new AnswerLikeInputModel
{
AnswerId = answer.Id,
AnswerAuthorId = answer.AuthorId,
IsLiked = isLiked,
LikesCount = likesCount
};
return(this.PartialView(model));
}
public ActionResult Like(AnswerLikeInputModel input)
{
if (this.ModelState.IsValid)
{
var answer = this.Data.Answers.GetById(input.AnswerId);
if (answer == null || answer.IsDeleted)
{
return(this.HttpNotFound());
}
var userId = this.User.Identity.GetUserId();
if (answer.AuthorId == userId)
{
return(new HttpStatusCodeResult(HttpStatusCode.BadRequest));
}
var isLiked =
this.Data.AnswerLikes.All()
.Any(l => l.UserId == userId && l.AnswerId == input.AnswerId && !l.IsDeleted);
if (isLiked)
{
return(this.Dislike(input));
}
var newLike = new AnswerLike {
UserId = userId, AnswerId = input.AnswerId
};
this.Data.AnswerLikes.Add(newLike);
this.Data.SaveChanges();
var likesCount = this.Data.AnswerLikes.All().Count(a => a.AnswerId == input.AnswerId);
input.IsLiked = true;
input.LikesCount = likesCount;
var newNotification = new Notification
{
NotificationType = NotificationType.LikeAnswer,
ItemId = answer.Id,
SenderId = userId,
ReceiverId = answer.AuthorId
};
this.Data.Notifications.Add(newNotification);
this.Data.SaveChanges();
this.UpdateNotificationsCount(answer.Author);
return(this.PartialView(input));
}
return(this.JsonError("Answer id is required"));
}
private ActionResult Dislike(AnswerLikeInputModel input)
{
var userId = this.User.Identity.GetUserId();
var like =
this.Data.AnswerLikes.All()
.FirstOrDefault(l => l.UserId == userId && l.AnswerId == input.AnswerId && !l.IsDeleted);
if (like != null)
{
this.Data.AnswerLikes.Delete(like.Id);
this.Data.SaveChanges();
}
var likesCount = this.Data.AnswerLikes.All().Count(a => a.AnswerId == input.AnswerId);
input.IsLiked = false;
input.LikesCount = likesCount;
return(this.PartialView("Like", input));
}
