public IActionResult UpdateArticle(ArticleModel model)
{
if (ModelState.IsValid)
{
using (var db = new FusekiContext())
{
var article = db.Articles
.Include(aa => aa.Tags)
.First(el => el.Id == model.Id);
//allow extended chars in title. But links and finding will strip them.
article.Title = model.Title;
var normalized = Renderer.Normalize(model.Body);
article.Body = normalized;
var now = DateTime.Now;
article.Updated = now;
if (article.Created == DateTime.MinValue)
{
article.Created = now;
}
//rectify tags.
var empty = new List <string>();
var tags = model.Tags?.Split(",").Select(el => el.Trim()) ?? new string[0];
var newTagNames = tags
.Select(el => el.Trim())
.Where(ee => !string.IsNullOrWhiteSpace(ee))
.ToHashSet();
var existingTags = article.Tags.Select(el => el.Name).ToHashSet();
var todelete = existingTags.Except(newTagNames);
var toadd = newTagNames.Except(existingTags);
foreach (var bad in todelete)
{
var tag = db.Tags.Where(el => el.ArticleId == article.Id && el.Name == bad).First();
db.Remove(tag);
}
foreach (var good in toadd)
{
var tag = CreateTag(article, good);
db.Add(tag);
}
db.SaveChanges();
return(Redirect($"../{model.Title}"));
}
}
else
{
return(View());
}
}
public IActionResult SetTags(int id, string tagLine = "")
{
if (string.IsNullOrEmpty(tagLine))
{
tagLine = "";
}
var newTags = Helpers.TagLine2Tags(tagLine);
var didSomething = false;
var result = "";
using (var db = new FusekiContext())
{
var image = db.Images
.Include(el => el.ImageTags)
.FirstOrDefault(el => el.Id == id);
var exiTags = image.ImageTags ?? new List <ImageTag>();
//exiTags = new List<ImageTag>();
var toDelete = new List <ImageTag>();
foreach (var tag in newTags)
{
if (exiTags.FirstOrDefault(el => el.Name == tag) == null)
{
var newImageTag = new ImageTag();
newImageTag.Image = image;
newImageTag.Name = tag;
db.Add(newImageTag);
didSomething = true;
result += $"\ncreated new tag for image: {tag}";
}
}
foreach (var exiTag in exiTags)
{
if (newTags.FirstOrDefault(el => el == exiTag.Name) == null)
{
db.Remove(exiTag);
didSomething = true;
result += $"\nremoved old tag on image: {exiTag.Name}";
}
}
if (didSomething)
{
db.SaveChanges();
}
}
var arm = new ActionResultModel();
arm.NextLink = "/image/viewall";
arm.NextLinkDescription = "back to image list";
arm.SetResult(result);
return(View("ActionResult", arm));
}
