Question

我的代码：

webApp.controller ('entityCtrl', function ($scope, Entity) {  
    $scope.x = new Entity('1','3343','32434');
});


webApp.factory('Entity',function(){

  var _id,
      _created,
      _updated;


  //constructor

  function Entity(id,created,updated){


      this._id = id;
      this._created = created;
      this._updated = updated;

      return this;
  }

  var save = function (){
      console.log('save');
  };

  var update = function () {
      console.log('update');
  };

  var _delete = function () {
      console.log('delete');
};

  return {

      save: save,
      update: update,
      delete: _delete
  }

});

我得到的错误：

TypeError: object is not a function
at new <anonymous> (http://localhost/webApp/trunk/htdocs/js/rw/controllers.js:12:16)
at invoke (http://localhost/webApp/trunk/htdocs/js/vendors/angular.js:2902:28)
at Object.instantiate (http://localhost/webApp/trunk/htdocs/js/vendors/angular.js:2914:23)
at $get (http://localhost/webApp/trunk/htdocs/js/vendors/angular.js:4805:24)
at $get.i (http://localhost/webApp/trunk/htdocs/js/vendors/angular.js:4384:17)
at forEach (http://localhost/webApp/trunk/htdocs/js/vendors/angular.js:137:20)
at nodeLinkFn (http://localhost/webApp/trunk/htdocs/js/vendors/angular.js:4369:11)
at compositeLinkFn (http://localhost/webApp/trunk/htdocs/js/vendors/angular.js:4015:15)
at compositeLinkFn (http://localhost/webApp/trunk/htdocs/js/vendors/angular.js:4018:13)
at publicLinkFn (http://localhost/webApp/trunk/htdocs/js/vendors/angular.js:3920:30)    angular.js:5754

我做错了什么？

Answer 1

这与Angular实际上没什么关系。您正在从方法返回一个Object（如错误所示）。您可能想要退回Entity功能。

考虑这个例子：

webApp.controller ('entityCtrl', function ($scope, Entity) {  
    $scope.x = new Entity('1','3343','32434');
});

webApp.factory('Entity',function(){
  var Entity = function(id,created,updated){
      this._id = id;
      this._created = created;
      this._updated = updated;
  };
  Entity.prototype.save = function (){
      console.log('save');
  };
  Entity.prototype.update = function () {
      console.log('update');
  };
  Entity.prototype._delete = function () {
      console.log('delete');
  };

  return Entity;
});

顺便说一下。您可能希望观看此视频，了解面向对象JS的工作原理：http://youtu.be/PMfcsYzj-9M

无法使用工厂创建对象

1 个答案: