AngularFirebase2：查詢名單與equalTo

我有對象的名單上火力地堡就像這樣：AngularFirebase2：查詢名單與equalTo

- members 
    -KkN7J3duEB0Lqz01S7v 
     |- address: "Chicago Ave, Minneapolis, MN, USA" 
     |- isDeleted: true

而且我想查詢什麼「請將isDeleted」是假的，這裏是我的代碼片段：

return this.database.list('/members', { 
    query: { 
    limitToLast: (pageNumber * this.pageSize), 
    equalTo: { 
     value: false, 
     key: 'isDeleted' 
    } 
    } 
})

然而，對瀏覽器控制檯這個錯誤：

core.es5.js:1084 ERROR Error: Query: When ordering by priority, the first argument passed to startAt(), endAt(), or equalTo() must be a valid priority value (null, a number, or a string). 
    at Qh (database.js:231) 
    at U.webpackJsonp../node_modules/firebase/database.js.g.Nd (database.js:240) 
    at U.webpackJsonp../node_modules/firebase/database.js.g.If (database.js:242) 
    at MapSubscriber.project (firebase_list_factory.js:31) 
    at MapSubscriber.webpackJsonp../node_modules/rxjs/operator/map.js.MapSubscriber._next (map.js:77) 
    at MapSubscriber.webpackJsonp../node_modules/rxjs/Subscriber.js.Subscriber.next (Subscriber.js:89) 
    at SafeSubscriber._next (query_observable.js:59) 
    at SafeSubscriber.webpackJsonp../node_modules/rxjs/Subscriber.js.SafeSubscriber.__tryOrUnsub (Subscriber.js:238) 
    at SafeSubscriber.webpackJsonp../node_modules/rxjs/Subscriber.js.SafeSubscriber.next (Subscriber.js:185) 
    at Subscriber.webpackJsonp../node_modules/rxjs/Subscriber.js.Subscriber._next (Subscriber.js:125)

請指教。謝謝！

來源

2017-06-13 Softhinker.com

的解決方案是：

return this.database.list('/members', { 
    query: { 
    orderByChild: 'isDeleted', 
    equalTo: false, 
    limitToLast: (pageNumber * this.pageSize) 
    } 
})

來源

2017-06-13 20:41:26 nisanarz

謝謝，它的工作原理！還需要添加新的數據庫規則，如下面的@ odenman250所述。 –

我認爲你需要添加orderByChild：'isDeleted'到查詢。並確保更新您的數據庫規則。

來源

2017-06-13 14:42:51 odenman250

是，添加了此規則：「.indexOn 」：[「請將isDeleted」]。謝謝！ –

AngularFirebase2：查詢名單與equalTo

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