public DataWriteResult Delete(User publisher, Article article)
{
try
{
User dbPublisher = _context.Users.First(u => u.Id == publisher.Id && u.Role == Role.Publisher);
Article dbArticle = _context.Articles.FirstOrDefault(a => a.Id == article.Id);
_context.Articles.Remove(dbArticle);
_context.SaveChanges();
return(DataWriteResult.SuccessResult());
}
catch (Exception exception)
{
return(DataWriteResult.FailureResult(exception));
}
}
public DataWriteResult Update(User publisher, Article article)
{
try
{
User dbPublisher = _context.Users.First(u => u.Id == publisher.Id && u.Role == Role.Publisher);
article.Publisher = dbPublisher;
_context.Articles.Attach(article);
_context.SaveChanges();
return(DataWriteResult.SuccessResult());
}
catch (Exception exception)
{
return(DataWriteResult.FailureResult(exception));
}
}
public DataWriteResult Like(User user, Article article)
{
DataWriteResult response;
if (user.Likes > 0)
{
article.Likes += 1;
user.Likes -= 1;
response = DataWriteResult.SuccessResult();
}
else
{
response = DataWriteResult.FailureResult(new Exception("Insufficient likes remaining"));
}
return(response);
}
public DataWriteResult Create(User publisher, Article article)
{
DataWriteResult response;
if (article.Author == null)
{
response = DataWriteResult.FailureResult(new Exception("Authour null"));
}
else
{
_articles.Add(article);
response = DataWriteResult.SuccessResult();
}
_articles.Add(article);
return(response);
}
public DataWriteResult Like(User user, Article article)
{
try
{
if (user.Likes > 0)
{
var articleDb = _context.Articles.Include(a => a.Author).Include(p => p.Publisher).First(a => a.Id == article.Id);
var userDb = _context.Users.First(u => u.Id == user.Id);
articleDb.Likes += 1;
userDb.Likes -= 1;
_context.SaveChanges();
return(DataWriteResult.SuccessResult());
}
return(DataWriteResult.FailureResult(new Exception("Insufficient likes remaining")));
}
catch (Exception exception)
{
return(DataWriteResult.FailureResult(exception));
}
}