Beispiel #1
0
    public void Set(string key, List <RemoteModel> data)
    {
        var Key = Keys.FirstOrDefault(s => s.KeyStr == key) ?? new Key()
        {
            KeyStr = key
        };

        foreach (var remoteModel in data)
        {
            var exist = MyModels.FirstOrDefault(s => s.RemoteModel.Id == remoteModel.Id);
            if (exist == null)
            {
                // add data to the cache
                var myModel = new MyModel()
                {
                    RemoteModel = remoteModel
                };
                var keyMyModel = new KeyMyModel()
                {
                    Key       = key,
                    MyModelId = remoteModel.Id
                };
                myModel.KeyMyModels.Add(keyMyModel);
                Key.KeyMyModels.Add(keyMyModel);
                Keys.Add(Key);
            }
            else
            {
                exist.RemoteModel = remoteModel;
                var existKeyMyModel =
                    KeyMyModels.FirstOrDefault(s => s.Key == key && s.MyModelId == exist.RemoteModel.Id);
                if (existKeyMyModel == null)
                {
                    existKeyMyModel = new KeyMyModel()
                    {
                        Key       = key,
                        MyModelId = exist.RemoteModel.Id
                    };
                    Key.KeyMyModels.Add(existKeyMyModel);
                    exist.KeyMyModels.Add(existKeyMyModel);
                    KeyMyModels.Add(existKeyMyModel);
                }
            }
        }

        // Remove MyModels if need
        var remoteIds           = data.Select(s => s.Id);
        var currentIds          = KeyMyModels.Where(s => s.Key == key).Select(s => s.MyModelId);
        var removingIds         = currentIds.Except(remoteIds);
        var removingKeyMyModels = KeyMyModels.Where(s => s.Key == key && removingIds.Any(i => i == s.MyModelId)).ToList();

        removingKeyMyModels.ForEach(s =>
        {
            KeyMyModels.Remove(s);
            Key.KeyMyModels.Remove(s);
        });
    }