public ActionResult Create( Article article)
{
try
{
_articles.Insert( ParseTags( article));
return RedirectToAction("Index");
}
catch( Exception exception)
{
ViewBag.ErrorMessage = exception.Message;
var viewModel = new ArticleEditViewModel()
{
Article = article,
Authors = _authors.RetrieveAll(),
Tags = _tags.RetrieveAll()
};
return View( viewModel);
}
}
public Tag Map( Tag tag, Article article, Author author)
{
// Terminating call. Since we can return null from this function
// we need to be ready for PetaPoco to callback later with null
// parameters
if( tag == null)
return current;
// Is this the same tag as the current one we're processing
if( current != null && current.Id == tag.Id)
{
article.Author = author;
// Yes, just add this article to the current tag's collection of articles
if( article != null) current.Articles.Add( article);
// Return null to indicate we're not done with this tag yet
return null;
}
// This is a different tag to the current one, or this is the
// first time through and we don't have an tag yet
// Save the current tag
var prev = current;
// Setup the new current tag
current = tag;
if( article != null && article.Id != int.MinValue)
{
article.Author = author;
current.Articles.Add( article);
}
return prev;
}
private Article ParseTags( Article article)
{
var editedTags = Request["Tags"];
if( ! string.IsNullOrEmpty( editedTags))
{
var tags = Regex.Split( editedTags, "\r\n");
if( tags != null && tags.Length > 0)
{
foreach( var tag in tags)
{
article.Tags.Add( new Tag( tag));
}
}
}
return article;
}