如何在 Parse cloud Javascript SDK 中创建此查询？

Question

我需要在 Parse Javascript SDK 中创建/执行以下 SQL 查询。

Select * form xyz table where xyz.username in [select username from users where gender = "male"];

无法弄清楚如何使用 Parse SDK 执行此操作，请帮助。

添加代码：

var gender = request.params.gender;
var users = [];
console.log(gender);
if(strcmp1(gender , "All") != 0)
{
    var genderQuery = new Parse.Query("User");
    genderQuery.equalTo("gender",gender);
    var scoreQuery = new Parse.Query("JournalEntry");

    scoreQuery.matchesKeyInQuery("userName", "username", genderQuery);
    scoreQuery.find({ 
        success: function(results) {
            for(j = 0; j < results.length ; j++)
            {
                var entry = results[j];
                users.push(entry.get("username"));
            }
            response.success(users);    
        }
    });
} 

谢谢 维沙尔

Answer 1

您可以使用matchesKeyInQuery

var maleQuery = new Parse.Query(Parse.User);
maleQuery.equalTo("gender", "male");

var xyzQuery = new Parse.Query("xyz");
xyzQuery.matchesKeyInQuery("username", "username", maleQuery);
xyzQuery.find({ 
  success: function(results) {

  }
});