public async Task <Article> Execute(GetArticleById query)
{
using IDbConnection conn = DbConnection.GetDbConnection();
string CacheKey = $"Article-{query.Id}";
string CacheValue = await _distributedCache.GetStringAsync(CacheKey);
var sql = @$ "select * from Articles
where Id = {query.Id}";
Article Article;
conn.Close();
if (CacheValue != null)
{
try
{
Article = JsonConvert.DeserializeObject <Article>(JsonConvert.DeserializeObject(CacheValue).ToString(), new JsonSerializerSettings {
NullValueHandling = NullValueHandling.Ignore,
ConstructorHandling = ConstructorHandling.AllowNonPublicDefaultConstructor,
ContractResolver = new PrivateResolver()
});
}
catch (Exception e)
{
log.LogError(e.Message);
log.LogError(e.StackTrace);
log.LogError(e.Source);
log.LogError(e.InnerException.Message);
return(null);
}
}
else
{
Article = (await conn.QueryAsync <Article>(sql)).First();
await Task.Run(async() => await _distributedCache.AddCache(CacheKey, JsonConvert.SerializeObject(Article)));
}
db.Entry(Article).State = EntityState.Unchanged;
db.Entry(Article).Collection(u => u.Votes).Load();
db.Entry(Article).Collection(u => u.Comments).Load();
db.Entry(Article).Reference(u => u.User).Load();
return(Article);
}
public async Task <ArticleViewModel> Execute(GetViewArticleById query)
{
using IDbConnection conn = context.GetDbConnection();
string CacheKey = $"ViewArticle-{query.Id}";
string CacheValue = await _distributedCache.GetStringAsync(CacheKey);
ArticleViewModel article;
if (CacheValue != null)
{
article = JsonConvert.DeserializeObject <ArticleViewModel>(CacheValue);
}
else
{
var sql = @$ "select * from Articles a
JOIN AspNetUsers u
ON a.UserId = u.Id
where a.Id = {query.Id}";
article = (await conn.QueryAsync <Article, User, ArticleViewModel>
(sql, (article, user) => {
var articleView = _mapper.Map <ArticleViewModel>(article);
articleView.User = user;
return(articleView);
})
).First();
await Task.Run(async() => await _distributedCache.AddCache(CacheKey, article));
}
article.Votes = conn.Query <Vote>(@$ "SELECT * FROM Votes WHERE ArticleId = {query.Id}").ToList();
var Comments = conn.Query <Comment>(@$ "SELECT * FROM Comments WHERE ArticleId = {query.Id}").ToList();
foreach (var a in Comments)
{
db.Entry(a).State = EntityState.Unchanged;
db.Entry(a).Reference(u => u.User).Load();
}
article.Comments = Comments;
conn.Close();
return(article);
//return _mapper.Map<ArticleViewModel>(await db.Articles.FindAsync(query.Id));
}
