Parse.com查询返回0的结果，当在数据浏览器中，我可以看到有2个结果 [英] Parse.com query returning 0 results when in the Data browser I can see there are 2 results

问题描述

我使用的解析在我的Andr​​oid应用程序，而我，做了以下基本的查询：

I am using Parse in my android application, and I and doing the following basic query:

    List<ParseObject> activityList = null;
    ParseQuery<ParseObject> query = ParseQuery.getQuery("Activity");
    query.setLimit(10);
    try {
        activityList = query.find();
    } catch (ParseException e) {
        e.printStackTrace();
    }

    Toast.makeText(Main.this, "Test "+activityList.size(), Toast.LENGTH_LONG).show();

我得到的输出是：的文字0

这是很奇怪的！因为我可以在分析数据浏览器2的结果存在明确看到！难道这是一些与 ACL 或什么？

That is really weird! because I can definitively see in the Parse data browser that 2 results exist! Could this be something with ACL or whatever?

下面是我解析的照片数据浏览器

正如你所看到的，有2条是存在的。注意，我不知道什么样的 ACL 是这样，可能是这个问题。

As you can see, there are 2 records that exist.. Note I have no idea what ACL is so that might be the problem..

推荐答案

最有可能的导致您的访问问题（实体后端没有retreived由GET）中定义的ACL。

Most likely its the undefined ACL causing your access problem ( entity in back end not being retreived by a GET ).

所以，你应该阅读的Andr​​oid手册的部分对ACL和安全性。作为首发，当你创建一个对象，你应该构建一个访问控制列表与读取和放大器;写的所有者和阅读其他人...

So, you should read the section of the android manual on ACL and on security. As a starter, when you create an object , you should construct an ACL with READ&WRITE for the owner and READ for others...

在安卓批准或者世界读/写或独占读/写主人，这将是：

In android granting either world read/write or exclusive read/write to owner , that would be :

                aclOb1 = new ObjectMapper().createObjectNode();
                aclOb2 = new ObjectMapper().createObjectNode();
                aclOb2.put("read", true);
                aclOb2.put("write", true);

                String oid = $Get.current.user
                if(oid.equalsIgnoreCase("default")){
                    aclOb1.put("*", aclOb2);
                }else{
                    aclOb1.put(oid, aclOb2);
                }                                        
                rootOb.put("ACL", aclOb1);

对于JS ACL示例，请参见 createOnEnter方法​​< /一>中的链接

For ACL example in JS , see createOnEnter method in the link

这篇关于Parse.com查询返回0的结果，当在数据浏览器中，我可以看到有2个结果的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！