一個數組裏面的

Question

Uing紅寶石（1.8.7）和蒙戈驅動器合併哈希值，我寫這樣的：

@data['Users'] = [] 
@database['user_facilities'].find({ :facility_id => @facility['id'] }).each do |user_facility| 
    @data['Users'] << @database['users'].find({ :id => user_facility['user_id'] }).to_a 
end 

，輸出：

[ "Users", [ [ { "name" => "michael" }, { "name" => "dennis" } ], [ { "name" => "brandon" }, { "name" => "steve" } ] ] ] 

但我想它喜歡看起來像這樣：

[ "Users", [ { "name" => "michael" }, { "name" => "dennis" }, { "name" => "brandon" }, { "name" => "steve" } ] ] 

我明白爲什麼我會得到我以上的結果。我試過「扁平化」和「合併」。但是，似乎沒有任何數據可以按照我的需要返回。

Answer 1

@database['user_facilities'].find({ :facility_id => @facility['id'] }).each do |user_facility| 
    @data['Users'].push *@database['users'].find({ :id => user_facility['user_id'] }).to_a 
end