public Feed(int id, String message, Interest interest)
{
this.Message = message;
this.Id = id;
this.Interest = interest;
}
public bool Equals(Interest interest)
{
return this.Id == interest.Id;
}
private static void Main(string[] args)
{
//create interests
Interest interest = new Interest(1, "Basketball");
Interest interest2 = new Interest(2, "Football");
Interest interest3 = new Interest(3, "Cartoons");
Interest interest4 = new Interest(4, "Gaming");
Interest interest5 = new Interest(5, "Running");
//createing user
User user = new User(1, "matti nielsen");
//createing list for friendships
List<FriendShip> friends = new List<FriendShip>();
//createing friends
User friend = new User(2, "Martin petersen");
User friend2 = new User(3, "Marc holt");
User friend3 = new User(4, "Christian brink");
User friend4 = new User(5, "Jon Højlund");
//adding friends to the friendship lists, and giveing them to the user.
friends.Add(new FriendShip(user, friend));
friends.Add(new FriendShip(user, friend2));
friends.Add(new FriendShip(user, friend3));
friends.Add(new FriendShip(user, friend4));
user.FriendShips = friends;
//createing lists of interests for the user and friends.
List<Interest> interestsForUser = new List<Interest>();
interestsForUser.Add(interest3);
interestsForUser.Add(interest4);
List<Interest> interestsForFriend = new List<Interest>();
interestsForFriend.Add(interest);
interestsForFriend.Add(interest2);
List<Interest> interestsForFriend2 = new List<Interest>();
interestsForFriend2.Add(interest3);
interestsForFriend2.Add(interest4);
List<Interest> interestsForFriend3 = new List<Interest>();
interestsForFriend3.Add(interest4);
interestsForFriend3.Add(interest5);
List<Interest> interestsForFriend4 = new List<Interest>();
interestsForFriend4.Add(interest4);
interestsForFriend4.Add(interest5);
//Adding the interests to the users
user.Interests = interestsForUser;
friend.Interests = interestsForFriend;
friend2.Interests = interestsForFriend2;
friend3.Interests = interestsForFriend3;
friend4.Interests = interestsForFriend4;
//Adding feeds to the users
List<Feed> feedsForUser = new List<Feed>();
feedsForUser.Add(new Feed(1, "Basketball is great", interest));
feedsForUser.Add(new Feed(2, "Football is great", interest2));
user.Feeds = feedsForUser;
List<Feed> feedsForFriend = new List<Feed>();
feedsForFriend.Add(new Feed(3, "Basketball is great", interest));
feedsForFriend.Add(new Feed(4, "Football is great", interest2));
friend.Feeds = feedsForFriend;
List<Feed> feedsForFriend2 = new List<Feed>();
feedsForFriend2.Add(new Feed(5, "Cartoons is great", interest3));
feedsForFriend2.Add(new Feed(6, "Gaming is great", interest4));
friend2.Feeds = feedsForFriend2;
List<Feed> feedsForFriend3 = new List<Feed>();
feedsForFriend3.Add(new Feed(7, "Gaming is great", interest4));
feedsForFriend3.Add(new Feed(8, "Running", interest5));
friend3.Feeds = feedsForFriend3;
List<Feed> feedsForFriend4 = new List<Feed>();
feedsForFriend4.Add(new Feed(9, "Gaming is great", interest4));
feedsForFriend4.Add(new Feed(10, "Running", interest5));
friend4.Feeds = feedsForFriend4;
//Selecting all of of the friendships => Friend => Feeds => where(user.equal(friend))
IEnumerable<Feed> friendsFeedsWithSameInterests = user.FriendShips.Where(
friendship =>
friendship.User.Interests.Any(
userInterest =>
friendship.Friend.Interests.Any(friendInterest => friendInterest.Equals(userInterest))))
.SelectMany(
result => result.Friend.Feeds);
Console.WriteLine("New run:");
friendsFeedsWithSameInterests.ToList().ForEach(delegate(Feed feed)
{
Console.WriteLine("Feed:" + Environment.NewLine);
Console.WriteLine(feed.Message + Environment.NewLine);
});
Console.WriteLine("End of run");
Console.ReadKey();
}