如何为Swift更新Firebase数据?

时间:2017-04-18 17:57:36

标签: ios swift firebase firebase-realtime-database

有firebase数据,关键不是FIRAuth.auth()!。currentUser!.uid

["location": {"-Khpr_PAuGSVngNspTVW" =
                  {
                     "lat" = "24.370078858713";
                     "long" = "14.11361694336";
                  };
              "-KhH-LaOcWgwaGYbPGIX" =
                  {
                     "lat" = "22.379264";
                     "long" = "13.3213213";
                  };
]

如何更新lat或long中的一个,我尝试更新,但它只是额外创建一个位于内部的表。

 let databaseRef = FIRDatabase.database().reference()
 databaseRef.child("location").updateChildValues(["lat": 11.324231])

这是工作!但我不想自己编写用户密钥

 let databaseRef = FIRDatabase.database().reference()
 databaseRef.child("location").child("ben").updateChildValues(["lat": 11.324231])

1 个答案:

答案 0 :(得分:2)

如果您知道它是哪个用户,请将其包含在参考路径中。

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<head>
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    <title>Title</title>
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<body>
<div id="chart"></div>

<script src="http://d3js.org/d3.v4.min.js" charset="utf-8"></script>
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        .call(histogramChart()
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            .height(250)
            .lowerBand(2000)
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            .yAxisLabel("# of Organizations")
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                var xAxis = d3.axisBottom()
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                    .attr("width", barWidth)
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                    .text(yAxisLabel);
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