public void TestTeaching()
{
string userName = "******";
List <BagOfWords> bags = feedService.GetAllBags();
UserInterest interest = userService.GetUser(userName);
if (interest == null)
{
interest = userService.AddUser(userName);
FeedItem document = feedService.GetDocument("tag:blogger.com,1999:blog-19732346.post-6636802898282623833");
userService.LikeDocument(interest, document);
document = feedService.GetDocument("tag:blogger.com,1999:blog-19732346.post-1441194024531049182");
userService.LikeDocument(interest, document);
}
BagOfWords userBag = new BagOfWords(interest.Id, interest);
interest.Ratings = userBag.CalculateRatings(bags).Where(rating => rating.Rating > 0).ToList();
userService.UpdateUser(interest);
//userService.RemoveUser(userName);
}