public ActionResult Create([Bind(Include = "ID,Title,Content")] Post post,string Tags)
{
if (ModelState.IsValid)
{
post.CreateTime = DateTime.UtcNow;
post.LastModified = DateTime.UtcNow;
post.Urlslug = new Regex("[^a-zA-Z0-9\u4e00-\u9fa5]+").Replace(post.Title, "-");
//post.Tags.Add()
foreach (var t in Tags.Split(',')) {
var s = t.Trim();
Tag curTag;
if (!_repo.getTags().Any(p => p.name == s))
{
curTag = new Tag { name = s };
db.Tags.Add(curTag);
}
else {
curTag = _repo.getTags().Where(x => x.name == s).Single();
}
if (curTag.posts == null)
{
curTag.posts = new List<Post>();
}
if (post.Tags == null) {
post.Tags = new List<Tag>();
}
curTag.posts.Add(post);
post.Tags.Add(curTag);
}
db.Posts.Add(post);
db.SaveChanges();
return RedirectToAction("Index");
}
return View(post);
}
public ActionResult Edit([Bind(Include = "ID,Title,Content,CreateTime")] Post post,string Tags)
{
if (ModelState.IsValid)
{
Post prev = db.Posts.Find(post.ID);
post.CreateTime = post.CreateTime;
post.LastModified = DateTime.UtcNow;
post.Urlslug = new Regex("[^a-zA-Z0-9\u4e00-\u9fa5]+").Replace(post.Title, "-");
//remove original tags from database
foreach (var t in prev.Tags.ToList())
{
if (t.posts.Count == 1)
{
db.Tags.Remove(t);
}
else if (t.posts.Count > 1)
{
db.Tags.Find(t.name).posts.Remove(prev);
}
}
db.Posts.Remove(prev);
db.SaveChanges();
foreach (var t in Tags.Split(','))
{
var s = t.Trim();
Tag curTag;
if (!_repo.getTags().Any(p => p.name == s))
{
curTag = new Tag { name = s };
db.Tags.Add(curTag);
}
else
{
curTag = _repo.getTags().Where(x => x.name == s).Single();
db.Entry(curTag).State = EntityState.Modified;
}
if (curTag.posts == null)
{
curTag.posts = new List<Post>();
}
if (post.Tags == null)
{
post.Tags = new List<Tag>();
}
curTag.posts.Add(post);
post.Tags.Add(curTag);
}
db.Posts.Add(post);
db.SaveChanges();
return RedirectToAction("Index");
}
return View(post);
}