public async Task <string> GetLikeHate(Guid articleId, Guid userId)
{
using (ILikeHateService likeHateSvc = new LikeHateService())
{
var data = likeHateSvc.GetAll().Where(m => m.UserId == userId && m.ArticleId == articleId);
if (await data.AnyAsync())//有存在记录
{
//查询点赞了还是点踩了
var result = await data.FirstAsync();
if (result.Hate && result.Like)//两个都true错误，修改回未点赞和未点踩状态
{
result.Hate = false;
result.Like = false;
await likeHateSvc.EditAsync(result);
return("null");
}
else if (result.Like)//已经点赞,不可点踩
{
return("like");
}
else if (result.Hate)//已经点踩，不可点赞
{
return("hate");
}
else//其他情况
{
return("null");
}
}
else
{
//没有记录当作没点赞也没点踩
return("none");
}
}
}
/// <summary>
/// 点赞
/// </summary>
/// <param name="articleId">文章id</param>
/// <param name="userId">用户id</param>
/// <returns></returns>
public async Task GoodCountAdd(Guid articleId, Guid userId)
{
int likeCount;
int hateCount;
using (ILikeHateService likeHateSvc = new LikeHateService())
{
string result = await GetLikeHate(articleId, userId);
if (result == "none")//没有创建过
{
LikeHate likeHate = new LikeHate()
{
ArticleId = articleId, UserId = userId, Like = true, Hate = false
};
await likeHateSvc.CreatAsync(likeHate);
}
else if (result == "null")//创建了但都为false
{
LikeHate likeHate = await likeHateSvc.GetAll().Where(m => m.ArticleId == articleId && m.UserId == userId && !m.Like && !m.Hate).FirstAsync();
likeHate.Like = true;
await likeHateSvc.EditAsync(likeHate);
}
likeCount = await likeHateSvc.GetAll().Where(m => m.ArticleId == articleId && m.Like).CountAsync();
hateCount = await likeHateSvc.GetAll().Where(m => m.ArticleId == articleId && m.Hate).CountAsync();
}
using (IArticleService articleSvc = new ArticleService())
{
var article = await articleSvc.GetOneByIdAsync(articleId);
article.BadCount = hateCount;
article.GoodCount = likeCount;
await articleSvc.EditAsync(article);
}
}
