在Firebase函数中过滤数据 [英] Filter data in Firebase Functions

问题描述

如何查找具有myPhone值= 123的users.key值

how can I find the users.key value that has myPhone with value = 123

我尝试过的事情:

let usersRef = admin.database().ref("users");
usersRef
            .orderByChild("myPhone")
            .equalTo("123")
            .on('value', function(snapshot) {
                console.log("Snapshot "+ snapshot.val() );

        });

推荐答案

您正在过滤字符串，但正在存储数字.要使其起作用:

You're filtering on a string, but are storing a number. To make it work:

let usersRef = admin.database().ref("users");
usersRef.orderByChild("myPhone")
        .equalTo(123)
        .on('value', function(snapshot) {
            snapshot.forEach((userSnapshot) {
                console.log("User "+userSnapshot.key+": "+ userSnapshot.val() );
            });
    });

尽管我可能会建议实际上将电话号码存储为字符串.

Although I'd probably recommend actually storing the phone number as a string.

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