云代码功能不保存数据 [英] Cloud Code function not saving data

问题描述

在将其放入云代码之前，我已在Angular中对其进行了测试，并成功在整个程序中产生了正确的console.log响应.由于此函数操作用户表中的数据，因此它必须使用主键并位于云代码中.通过将此代码存储在云中，它会将职责"列保存到用户表中，但没有数据(有数据要保存，这是我确定的).而且，我什至不确定代码是否会运行在第一个解析查询之后，因为console.log在解析日志中什么也不返回.我要去哪里错了?

Before putting this on the cloud code I tested it in Angular with success producing the correct console.log responses throughout the program. Since this function manipulates data in the user table it must use the master key and be in cloud code. With this code in the cloud it saves the column 'duty' to the user table but with no data (there is data to be saved, this I am sure of). Moreover, I'm not even sure that the code runs past the first Parse Query as the console.log returns nothing in the Parse Logs. Where am I going wrong?

'use strict';
var express = require('express');
var app = express();
app.use(express.bodyParser());
var _ = require('underscore');
var server = require('http').createServer(app);

Parse.Cloud.define("updateMerchant", function(request, response) {
Parse.Cloud.useMasterKey();
var user = Parse.Object.extend("User")
var merchantQuery = new Parse.Query(Parse.User);
var Offers = Parse.Object.extend("Offer");
var offerQuery = new Parse.Query(Offers);
var Matches = Parse.Object.extend("Matched");
var matchQuery = new Parse.Query(Matches);

var merchantDuty = [];
var merchants = request.params.data;//I confirmed the validity of this a key value pair where the value is an array of objects.
var merchantIds = _.map(merchants, function(n){return n.id});
console.log(merchantIds)

offerQuery.containedIn("user", merchants);
offerQuery.limit(1000); 
offerQuery.find({//CODE STOPS RUNNING?!?
     success: function (offers) {
          var offerIds = _.map(offers, function (n) {
                         return n.id});

console.log(offers)//this is telling as it does not appear in the Parse log!

var offersBeta = _.map(offers, function (n) {
return _.extend(_.find(n), {id: n.id})});

     matchQuery.containedIn("offer", offers);
     matchQuery.limit(1000);
     matchQuery.find({
          success: function (matches) {
                   var merchantArray = _.map(_.flatten(matches), function (n) {return _.find(n)});

var offers3 = _.map(offersBeta, function (n) {return _.extend(n, {
Matched: _.filter(merchantArray, function (a) {return a.offer.id == n.id})})})

var duty = function (TotalBill, id) {
var promise = new Parse.Promise();
merchantQuery.get(id, {
     success: function (merchantBill) {
          merchantBill.set("duty", TotalBill);
          merchantBill.save().then(function(obj){ console.log(obj); }, function(error){console.log(error)})}})}

merchantDuty.push(duty(_.map(offer9, function(n){return n.TotalBill}), _.map(offer9, function(n){return n.id})));
},
error: function(){console.log(error);
}
})
}
})
//Code begins running again!

return Parse.Promise.when(merchantDuty).then(function() {

response.success("Success");
},
function(error) {response.error("Something is still wrong");
console.log(error);})
})

更清楚地说，在offerQuery.find和返回Parse.Promise之间什么都没有运行.

To be more clear, nothing between offerQuery.find and return Parse.Promise is run.

推荐答案

您需要在offerQuery.containedIn("user", merchants);中传递指针.参见此.

You need to pass pointers in offerQuery.containedIn("user", merchants);. See this.

尝试一下:

var _ = require('underscore');


Parse.Cloud.define("updateMerchant", function(request, response) {
  Parse.Cloud.useMasterKey();

  var merchantDuty = [];
  var merchants = request.params.data;//I confirmed the validity of this a key value pair where the value is an array of objects.

  // var merchantIds = _.map(merchants, function(n) {return n.id;});
  // console.log(merchantIds);

  // Since I don't have the merchants request parameter, I'll fake it with some fake users
  var fakeMerchants = [{"username":"Batman","objectId":"f7zZkPx7kT","createdAt":"2015-04-07T19:41:25.014Z","updatedAt":"2015-04-07T19:41:25.014Z","__type":"Object","className":"_User"},{"username":"Robin","objectId":"wgG4EfaFN1","createdAt":"2015-04-07T19:41:35.024Z","updatedAt":"2015-04-07T19:41:35.024Z","__type":"Object","className":"_User"}];
  // We can get some users like this:
  // var fakeMerchantsQuery = new Parse.Query(Parse.User);
  // fakeMerchantsQuery.find().then(function(users) {
  //   console.log(users);
  // });

  // Since the 'user' column in Offer Class is a pointer, we need to pass merchant pointers.
  // Otherwise we get the error "pointer field user needs a pointer value"
  // See https://www.parse.com/questions/using-containedin-with-array-of-pointers
  var fakeMerchantsPointers = _.map(fakeMerchants, function(merchant) { // TODO change to real merchants
    var pointer = new Parse.User();
    pointer.id = merchant.objectId;
    return pointer;
  });

  console.log(fakeMerchantsPointers);

  var offerQuery = new Parse.Query(Parse.Object.extend("Offer"));
  offerQuery.containedIn("user", fakeMerchantsPointers); // TODO change to real merchants
  offerQuery.limit(1000);
  offerQuery.find().then(function(offers) {

    console.log("inside offer query");
    console.log(offers);

    // Here I assume that the column 'offer' is a Pointer
    var matchQuery = new Parse.Query(Parse.Object.extend("Matched"));
    matchQuery.containedIn("offer", offers);
    matchQuery.limit(1000);
    return matchQuery.find();

  }).then(function(matches){

    console.log("inside matches query");
    console.log(matches);

    // Add the duty stuff here...        

    // We must call success or error
    response.success("Success");

  });

});

让我知道它是否有效.

请注意，您不应将Cloud Code与ExpressJS代码混合使用.云代码应位于main.js中，而ExpressJS代码应位于app.js中.然后，如果您希望请求通过ExpressJS传递，请在Cloud Code main.js中调用require('cloud/app.js');.

Please note that you shouldn't mix Cloud Code with ExpressJS code. The Cloud Code should be in main.js, and the ExpressJS code in app.js. Then, in Cloud Code main.js call require('cloud/app.js'); if you want the request pass through ExpressJS.

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