anchor.diff:  %%                                   {stop, Reason, State}
   %% @end
   %%--------------------------------------------------------------------
  +handle_call(#query_geocheckin{select = [_C1, _C2], where = #geocheckin_pk{id = _Id, time = {_T1, _T2}}} = Query_GeoCheckin, _From, State) ->
  +    Row = r_table_internal(State, {"GeoCheckin", Query_GeoCheckin}),
  +    {reply, Row, State};
   handle_call(_Request, _From, State) ->
       Reply = ok,
       {reply, Reply, State}.
  
positive.code: -record(state, {riak_ip, riak_port}).
  -record(store_new, {bucket, key, value}).
  -record(to_geocheckin, {id, time, region, state, weather, temperature}).
  
  %%%===================================================================
  %%% API
  
negative.code: -behaviour(gen_server).
  
  %% API
  -export([start_link/0, store/3, wro_geocheckin/0, r_geocheckin/0]).
  
  %% gen_server callbacks
  -export([init/1, handle_call/3, handle_cast/2, handle_info/2,
  