比方說,我有用戶的集合,每個用戶有他喜歡的頁面(想象一下Facebook頁面IDS)的數組:如何獲取流星中陣列相交的反應數據?
當前用戶:
{
name: "me",
likes: [123,234,777]
}
目標列表:
{
name: "Jane",
likes: [111,222,333]
},
{
name: "Mary",
likes: [567,234,777,654]
},
{
name: "John",
likes: [123,234,567,890,777]
},
{
name: "Steve",
likes: [666,777,321,432,543]
},
結果:
{
name: "John",
likes: [123,234,777]
},
{
name: "Mary",
likes: [234,777]
},
{
name: "Steve",
likes: [777]
},
{
name: "Jane",
likes: []
},
我想獲得被我最常見的用戶訂購的用戶的被動發佈。我需要反應,因爲每個用戶都有用戶在線 - 在線/離線。具有喜歡ID的數組是靜態的,但用戶在場狀態隨時間而變化。
看看[這篇文章](https://www.discovermeteor.com/blog/reactive-joins-in-meteor/)關於被動連接。 –