Javascript 在解析中检索用户名而不是ObjectID

使用angular和Parse for JavaScript，当管理员键入用户的objectid时，我有一个搜索字段，在单击submit时，用户的详细信息填充在各自的字段中。我的问题是，我不想使用objectid作为参考点，而是想使用用户名。在这里，他将输入用户名，而不是键入objectid，并填充各自的信息

下面是我如何根据提供的objectid显示用户信息（希望将其更改为用户名）。 剧本

//搜索和显示用户信息
$scope.userIdChanged=函数（）{
$scope.loading=true；
//现在在此处访问$scope.userId
var query=newparse.query（Parse.User）；
query.get（$scope.userId{
成功：函数（userInfo）{
//已成功检索该对象。
var address=userInfo.get（“地址”）；
$scope.address=地址；
var email=userInfo.get（“用户名”）；
$scope.email=电子邮件；
var fullName=userInfo.get（“fullName”）；
$scope.fullName=fullName；
var number=userInfo.get（“phoneNumber”）；
$scope.number=number；
var mailingAddress=userInfo.get（“mailingAddress”）；
$scope.mailingAddress=mailingAddress；
var plan=userInfo.get（“计划”）；
$scope.plan=计划；
var phone=userInfo.get（“电话”）；
$scope.phone='phone:'+phone；
var scanURL=''；
$scope.scanURL=scanURL；
$scope.loading=false；
},
错误：函数（对象，错误）{
//未能成功检索该对象。
//错误是一个解析。错误包含错误代码和消息。
$scope.loading=false；
}
});

html

搜寻

更新：

//To search and display user information
   $scope.userIdChanged = function () {
       $scope.loading = true;

       // now access $scope.userId here
       var query = new Parse.Query(Parse.User);

       query.equalTo("username", $scope.userId); 


       query.find({ success: function(userInfo) {
               // The object was retrieved successfully.
               var address = userInfo.get("address");
               $scope.address = address;

               var email = userInfo.get("username");
               $scope.email = email;

                var fullName = userInfo.get("fullName");
               $scope.fullName=  fullName;

                   var number = userInfo.get("phoneNumber");
               $scope.number=  number;

                var mailingAddress = userInfo.get("mailingAddress");
               $scope.mailingAddress =  mailingAddress;

                   var plan = userInfo.get("plan");
               $scope.plan =  plan;


                    var phone = userInfo.get("Phone");
               $scope.phone = 'Phone: ' + phone;

                 var scanURL = '<a href="scan.html">Scan</a>';
               $scope.scanURL = scanURL;
                          $scope.loading = false;


           },
           error: function(object, error) {
               // The object was not retrieved successfully.
               // error is a Parse.Error with an error code and message.
                          $scope.loading = false;

           }
       });

//搜索和显示用户信息
$scope.userIdChanged=函数（）{
$scope.loading=true；
//现在在此处访问$scope.userId
var query=newparse.query（Parse.User）；
query.equalTo（“用户名”，$scope.userId）；
query.find（{success:function（userInfo）{
//已成功检索该对象。
var address=userInfo.get（“地址”）；
$scope.address=地址；
var email=userInfo.get（“用户名”）；
$scope.email=电子邮件；
var fullName=userInfo.get（“fullName”）；
$scope.fullName=fullName；
var number=userInfo.get（“phoneNumber”）；
$scope.number=number；
var mailingAddress=userInfo.get（“mailingAddress”）；
$scope.mailingAddress=mailingAddress；
var plan=userInfo.get（“计划”）；
$scope.plan=计划；
var phone=userInfo.get（“电话”）；
$scope.phone='phone:'+phone；
var scanURL=''；
$scope.scanURL=scanURL；
$scope.loading=false；
},
错误：函数（对象，错误）{
//未能成功检索该对象。
//错误是一个解析。错误包含错误代码和消息。
$scope.loading=false；
}
});

查看parse.com文档中的查询。同时，可以使用

equalTo

等方法对查询进行约束：

var query = new Parse.Query(Parse.User);
query.equalTo("username", $scope.userId); 
// assuming that you're putting the username input text into $scope.userId
query.find({ success: function(array) {

           // this means the query was a success, but we're not yet certain that we found anything
           // the param to find's success is an array of PFObjects, possibly empty

           if (array.length > 0) {
               var userInfo = array[0];
               var address = userInfo.get("address");
               $scope.address = address;

               var email = userInfo.get("username");
               $scope.email = email;
               // you original code here ...

           } else {
               // the query is a success with no results,
               // which means  that no records match the criteria you gave
               alert("nothing found");
           }

       },
       error: function(object, error) {
           // The object was not retrieved successfully.
           // error is a Parse.Error with an error code and message.
                      $scope.loading = false;
       }
   });

---

非常感谢您的建议。我将深入分析解析文档。我已经应用了您的建议，由于某些原因，它似乎不再响应，在我键入objectid之前，其各自的字段将被填充，但现在当我键入用户名时，什么都没有发生。我已经在我的init的更新部分中包含了ial post修订版（当用户键入用户名时，它会提取有关该用户的相应数据）Find返回一个数组，因此您的代码应该检查长度是否大于0，然后选择要在UI中显示的一个或所有对象。

//To search and display user information
   $scope.userIdChanged = function () {
       $scope.loading = true;

       // now access $scope.userId here
       var query = new Parse.Query(Parse.User);

       query.equalTo("username", $scope.userId); 


       query.find({ success: function(userInfo) {
               // The object was retrieved successfully.
               var address = userInfo.get("address");
               $scope.address = address;

               var email = userInfo.get("username");
               $scope.email = email;

                var fullName = userInfo.get("fullName");
               $scope.fullName=  fullName;

                   var number = userInfo.get("phoneNumber");
               $scope.number=  number;

                var mailingAddress = userInfo.get("mailingAddress");
               $scope.mailingAddress =  mailingAddress;

                   var plan = userInfo.get("plan");
               $scope.plan =  plan;


                    var phone = userInfo.get("Phone");
               $scope.phone = 'Phone: ' + phone;

                 var scanURL = '<a href="scan.html">Scan</a>';
               $scope.scanURL = scanURL;
                          $scope.loading = false;


           },
           error: function(object, error) {
               // The object was not retrieved successfully.
               // error is a Parse.Error with an error code and message.
                          $scope.loading = false;

           }
       });

var query = new Parse.Query(Parse.User);
query.equalTo("username", $scope.userId); 
// assuming that you're putting the username input text into $scope.userId
query.find({ success: function(array) {

           // this means the query was a success, but we're not yet certain that we found anything
           // the param to find's success is an array of PFObjects, possibly empty

           if (array.length > 0) {
               var userInfo = array[0];
               var address = userInfo.get("address");
               $scope.address = address;

               var email = userInfo.get("username");
               $scope.email = email;
               // you original code here ...

           } else {
               // the query is a success with no results,
               // which means  that no records match the criteria you gave
               alert("nothing found");
           }

       },
       error: function(object, error) {
           // The object was not retrieved successfully.
           // error is a Parse.Error with an error code and message.
                      $scope.loading = false;
       }
   });