public void Add(Bookmark.Core.Bookmark bookmark, string tags)
{
var existingBookmark = this.dataContext.Bookmarks.SingleOrDefault(b => b.Article.URL == bookmark.Article.URL);
if (existingBookmark == null)
{
this.dataContext.Bookmarks.Add(bookmark);
// add tags logic, *refactor*, chain of responsibility?,
foreach (var tag in tags.Split(','))
{
// validate if the tag already exist in the database
var existingTag = this.dataContext.Tags.SingleOrDefault(t => t.Text == tag);
if (existingTag != null)
{
bookmark.Tags.Add(existingTag);
}
else
{
bookmark.Tags.Add(new Core.Tag {
Text = tag
});
}
}
}
else
{
// to do: create exception (Custom exception, or use invalid operation exception, bookmark with same url already exist)
// or move the validation logic to another service, BookmarkDuplicateValidator???
// throw error message in front-end
}
}
public void Delete(Bookmark.Core.Bookmark bookmark)
{
this.dataContext.Bookmarks.Remove(bookmark);
}