Parse cloud code request.object.get(key) return always undefined

问题

i'm trying to make a simple check before saving an object on Parse. I'm using the "beforeSave" method to check if object has necessary fields setup correctly before saving.

The problem is that when i try to get a field of my object it return always undefined even if it is setup correcly in log!

Input: {"original":null,"update":{"ACL":{"abcdefghi":{"read":true,"write":true}},"isDeleted":false,"lastEdit":0,"name":"testobject","uuid":"109d0b30-1ad5-408b-ba49-2ce024935476"}}

and cloud code:

Parse.Cloud.beforeSave("MyObject", function (request, response) {
    // return always an error with uuid printed
    response.error("Object uuid: " + request.object.get("uuid"));
}

This is a sample code, not my real code but as you can see the object passed to this function has "uuid" field inside but request.object.get("uuid") return always "undefined":

Console log:

Result: Object uuid: undefined

Official documentation say to access object fields in this way, so is this a Parse bug or i'm doing some mistakes?

EDIT 1:

As suggested i tryied to log the object in this way:

console.log("Object: " + JSON.stringify(request.object));
console.log("Request: " + JSON.stringify(request));

The result is:

Object: {}
Request: {"object":{}, <some other fields..>}

Any idea?

EDIT 2:

I reproduced correcly the error and it seems to be a bug with ACL; First i created a new object extending ParseObject (i'm working on Android):

@ParseClassName("Person")
public class ParsePerson extends ParseObject {

    public void setName(String name) {
        put("name", name);
    }

    public void setAge(int age) {
        put("age", age);
    }

    public String getName() {
        return getString("name");
    }

    public int getAge() {
        return getInt("age");
    }
}

And than my background thread it will create and save a test object in this way:

ParsePerson parsePerson = new ParsePerson();
parsePerson.setName("Tom");
parsePerson.setAge(45);
try {
    parsePerson.save();
} catch (ParseException e) {
    Debug.e("Error code: "+ e.getCode(), e);
}

Than i uploaded this cloud code that does nothing else than log:

Parse.Cloud.beforeSave("Person", function (request, response) {

    // log person object
    console.log("Object: " + JSON.stringify(request.object));

    // respond always success to save the object
    response.success();
});

Parse.Cloud.afterSave("Person", function(request) {

    // log person object again
    console.log("Object: " + JSON.stringify(request.object));

    // respond success
    response.success();
});

After running it works and it saves correctly the object in the new table. Logs:

Input: {"original":null,"update":{"age":45,"name":"Tom"}}
Result: Update changed to {"age":45,"name":"Tom"}
Object: {"age":45,"name":"Tom"}

The last thing i tryid to do was to set ACL to this object editing android code in this way:

ParsePerson parsePerson = new ParsePerson();
parsePerson.setName("Tom");
parsePerson.setAge(45);
parsePerson.setACL(new ParseACL(ParseUser.getCurrentUser())); // new line
try {
    parsePerson.save();
} catch (ParseException e) {
    Debug.e("Error code: "+ e.getCode(), e);
}

And after running everything this is the log:

Input: {"original":null,"update":{"ACL":{"userAcl":{"read":true,"write":true}},"age":45,"name":"Tom"}}
Result: Update changed to {}
Object: {}

So is this enough?

EDIT 3:

The only solution i found (this is more a workaround) is to save the object without ACL from Android code and then set ACL in beforeSave on cloud code:

Parse.Cloud.beforeSave("Person", function (request, response) {

    // setup ACL for this object
    var user = request.user;
    var newACL = new Parse.ACL();
    newACL.setPublicReadAccess(false);
    newACL.setPublicWriteAccess(false);
    newACL.setReadAccess(user.id, true);
    newACL.setWriteAccess(user.id, true);
    request.object.setACL(newACL);

    // log person object again
    console.log("Object: " + JSON.stringify(request.object));
}

回答1:

I had a very similar problem. I was making changes to an existing project and when I uploaded the code I started getting error where no errors had been before.

I finally solved it by going back to jssdk version to 1.4.0 in .parse.project

Maybe it solves your problem also.

来源：https://stackoverflow.com/questions/32530832/parse-cloud-code-request-object-getkey-return-always-undefined

标签

javascript

android

parse-platform

cloud-code