使用解析云函数
Posted
技术标签:
【中文标题】使用解析云函数【英文标题】:using parse cloud function 【发布时间】:2015-06-10 16:38:16 【问题描述】:好的,我试图对与用户相关的对象进行平均,实现操作并在同一类的解析对象中返回结果。 我不知道这是否正确。
这是解析云代码:
Parse.Cloud.define("Stats", function(request, response)
var query = new Parse.Query("stats");
query.equalTo("user", request.user);
query.select("Loses", "Wins", "Tilt", "speedKm","Races", "DaresCompleted");
query.find(
success: function(results)
var LoseSum = 0;
var WinSum = 0;
var TiltSum = 0;
var SpeedSum= 0;
var TotalRace = 0;
var TotalDares= 0;
for (var i = 0; i < results.length; ++i)
LoseSum += results[i].get("Loses");
WinSum += results[i].get("Wins");
TiltSum += results[i].get("Tilt");
SpeedSum += results[i].get("speedKm");
TotalRace += results[i].get("Races");
TotalDares += results[i].get("DaresCompleted");
var statspromed = Parse.Object.extend("statspromed");
var mya = new statspromed();
var num = results.length;
mya.set("Loses", LoseSum);
mya.set("Wins",WinSum);
mya.set("Tilt", TiltSum/num);
mya.set("speedKm", SpeedSum/num);
mya.set("Races",TotalRace);
mya.set("DaresCompleted", TotalDares);
mya.set("user", request.user);
mya.save().then(response.success(mya));
,
error: function()
response.error("movie lookup failed");
);
);
这是我从 android 对函数的调用
HashMap<String, Object> params = new HashMap<String, Object>();
params.put("user", ParseUser.getCurrentUser());
ParseCloud.callFunctionInBackground("Stats", params,
new FunctionCallback<ParseObject>()
public void done(ParseObject o, ParseException e)
if (e == null)
Promed = o;
else
Log.d("function", " fail");
);
当我拨打电话时,我会收到日志(功能失败) 这是日志猫
06-10 14:26:36.384 17540-17540/sku1l.rideout_r I/Process﹕ Sending signal. PID: 17540 SIG: 9
06-10 14:28:54.591 20796-20822/sku1l.rideout_r D/OpenGLRenderer﹕ Use EGL_SWAP_BEHAVIOR_PRESERVED: true
06-10 14:28:54.595 20796-20796/sku1l.rideout_r D/﹕ HostConnection::get() New Host Connection established 0xb42fdb60, tid 20796
06-10 14:28:54.603 20796-20796/sku1l.rideout_r D/Atlas﹕ Validating map...
06-10 14:28:54.669 20796-20822/sku1l.rideout_r D/libEGL﹕ loaded /system/lib/egl/libEGL_emulation.so
06-10 14:28:54.670 20796-20822/sku1l.rideout_r D/libEGL﹕ loaded /system/lib/egl/libGLESv1_CM_emulation.so
06-10 14:28:54.680 20796-20822/sku1l.rideout_r D/libEGL﹕ loaded /system/lib/egl/libGLESv2_emulation.so
06-10 14:28:54.691 20796-20822/sku1l.rideout_r D/﹕ HostConnection::get() New Host Connection established 0xb42fdff0, tid 20822
06-10 14:28:54.708 20796-20822/sku1l.rideout_r I/OpenGLRenderer﹕ Initialized EGL, version 1.4
06-10 14:28:54.757 20796-20822/sku1l.rideout_r D/OpenGLRenderer﹕ Enabling debug mode 0
06-10 14:28:54.843 20796-20822/sku1l.rideout_r W/EGL_emulation﹕ eglSurfaceAttrib not implemented
06-10 14:28:54.843 20796-20822/sku1l.rideout_r W/OpenGLRenderer﹕ Failed to set EGL_SWAP_BEHAVIOR on surface 0xb4399e00, error=EGL_SUCCESS
06-10 14:28:55.201 20796-20796/sku1l.rideout_r D/este﹕ es 3 es
06-10 14:28:55.350 20796-20796/sku1l.rideout_r D/esto﹕ es 3 es
06-10 14:29:00.678 20796-20796/sku1l.rideout_r D/function﹕ fail
06-10 14:29:00.859 20796-20796/sku1l.rideout_r D/myAdwars﹕ es 2 es
06-10 14:29:01.070 20796-20796/sku1l.rideout_r D/mis adwards﹕ es 1 es
好的,我现在从解析日志中得到这个
E2015-06-16T16:08:59.077Z]v53 Ran cloud function Stats for user N7ZTaawLVb with
Input: "user":"N7ZTaawLVb"
Result: Uncaught Tried to save an object with a pointer to a new, unsaved objct.
I2015-06-16T16:08:59.146Z]NaNloses
【问题讨论】:
感谢回复 我上传了 logcat 谢谢你的帮助 【参考方案1】:好的,问题出在这一行 mya.save().then(response.success(mya));
javascript 是异步的,当我尝试响应时,“mya”上的 save() 操作尚未完成。所以正确的做法是这样的
mya.save(null,
success: function(mya)
// The object was saved successfully.
response.success(mya)
,
error: function(myComment, error)
// The save failed.
);
【讨论】:
以上是关于使用解析云函数的主要内容,如果未能解决你的问题,请参考以下文章