public async Task LookupFriendshipAsync(IUserModel user)
{
IFriendshipModel model = StorageService.GetCachedFriendship(user.ScreenName);
if (model == null)
{
var option = Const.GetDictionary();
option.Add(Const.USER_ID, user.Id);
var friendships = await tokens.Friendships.LookupAsync(option);
if (friendships != null && friendships.Count != 0)
{
model = new FriendshipModel(friendships[0]);
}
}
if (model == null)
{
return;
}
var connections = model.Connections.Select(c => c.ToLower()).ToList();
user.IsFollowing = connections.Contains(Const.FOLLOWING);
user.IsFollowedBy = connections.Contains(Const.FOLLOWED_BY);
StorageService.AddOrUpdateCachedFriendship(model);
}
public void AddOrUpdateCachedFriendship(IFriendshipModel friendship)
{
lock (locker)
{
var entity = context.CachedFriendships.FirstOrDefault(u => u.Id == friendship.ScreenName);
if (entity == null)
{
entity = new CachedFriendship {
Id = friendship.ScreenName
};
context.CachedFriendships.InsertOnSubmit(entity);
}
entity.Data = SerializeObject(friendship);
context.SubmitChanges();
}
}