public bool SaveTagsToTagableEntity(ITagableEntity tagableEntity, ICollection<string> choosenTags)
{
if (choosenTags.Count > 0)
{
this.RemoveTagsFromTagableEntity(tagableEntity);
var tags = this.GetTagsArray(choosenTags);
foreach (var tag in tags)
{
var dbTag = this.Data.Tags
.All()
.FirstOrDefault(tnsi => tnsi.Name.ToLower().Trim() == tag.ToLower().Trim());
if (dbTag == null)
{
dbTag = new Tag
{
Name = tag,
};
this.Data.Tags.Add(dbTag);
this.Data.SaveChanges();
}
else
{
this.Data.Tags.Update(dbTag);
}
this.SaveTagToTagableEntity(tagableEntity, dbTag);
this.Data.SaveChanges();
}
}
return false;
}
private void RemoveTagsFromTagableEntity(ITagableEntity tagableEntity)
{
var entityIsAlbum = tagableEntity as Album;
if (entityIsAlbum != null)
{
var album = this.Data.Albums.GetById(entityIsAlbum.Id);
var tags = album.Tags;
foreach (var tag in tags)
{
tag.Albums.Remove(album);
}
album.Tags.Clear();
}
var entityIsArticle = tagableEntity as Article;
if (entityIsArticle != null)
{
var article = this.Data.Articles.GetById(entityIsArticle.Id);
var tags = article.Tags;
foreach (var tag in tags)
{
tag.Articles.Remove(article);
}
article.Tags.Clear();
}
var entityIsNSImage = tagableEntity as NSImage;
if (entityIsNSImage != null)
{
var nsImage = this.Data.NSImages.GetById(entityIsNSImage.Id);
var tags = nsImage.Tags;
foreach (var tag in tags)
{
tag.NSImages.Remove(nsImage);
}
nsImage.Tags.Clear();
}
this.Data.SaveChanges();
}
private void SaveTagToTagableEntity(ITagableEntity tagableEntity, Tag dbTag)
{
var entityIsAlbum = tagableEntity as Album;
if (entityIsAlbum != null)
{
var album = this.Data.Albums.GetById(entityIsAlbum.Id);
album.Tags.Add(dbTag);
this.Data.Albums.Update(album);
}
var entityIsArticle = tagableEntity as Article;
if (entityIsArticle != null)
{
var article = this.Data.Articles.GetById(entityIsArticle.Id);
article.Tags.Add(dbTag);
this.Data.Articles.Update(article);
}
var entityIsNSImage = tagableEntity as NSImage;
if (entityIsNSImage != null)
{
var nsImage = this.Data.NSImages.GetById(entityIsNSImage.Id);
nsImage.Tags.Add(dbTag);
this.Data.NSImages.Update(nsImage);
}
}
