如何传递一个控制器变量作为AngularJS $资源请求的参数？(How to pass a controller variable as a parameter for a AngularJS $resource request?)

 我是angularjs的新手，我认为这应该是一件简单的事情，但我无法完成它。 基本上我需要的是从一个服务获取一个变量并将其作为GET请求中的参数传递。 为此，我使用ngResource模块。 
 
 我从服务中获得的变量可能会发生变化，我需要的变量也是更改发出请求的url以及将呈现并显示在视图中的数据。 
 
 这就是为什么我需要获取该变量，将其传递给控制器​​并使用服务中的param定义在此控制器中生成$ resource请求。 
 
 这是我的控制器： 
 
.controller('LicoresController',['$scope','LicoresService','CategoriaService',function($scope,LicoresService,CategoriaService){ 
    $scope.licores=[];        
    $scope.pk=CategoriaService.getPk();
    console.log($scope.pk);
    LicoresService.query({disponibles:$scope.pk},function(data){
        $scope.licores=data;
        console.log(data);
        },function(error){
           console.log(error);
    });
}]);
 
 LicoresService 
 
.factory('LicoresService',['$resource',function($resource){

    return $resource('http://192.168.0.16:8000/api/productos/',{licorera:2},{isArray:true});         
}]);
 
 和CategoriaService（从这一个，我得到我需要作为请求的参数传递的变量） 
 
.factory('CategoriaService',function(){
    var pk=0;

    function getPk(){
        return pk;
    }

    function setPk(newpk){
        pk=newpk;
    }

    return{
      setPk:setPk,
      getPk:getPk,
    };

});
 
 在视图中，我使用ng-repeat指令迭代$ scope.licores数组。 
 
<li ng-repeat="licor in licores"> 
  <img src="{{licor.imagen}}"/>     
  <table align="center"> 
    <tr><td >{{licor.marca|uppercase}}</td></tr>
    <tr><td >Tamaño</td><td >{{licor.tamano}}</td></tr>
    <tr>
        <td>Precio<br/>
            <span >$ {{licor.precio}}</span>
        </td>
    </tr>                   
  </table>
</li>  
 
 问题似乎是LicoresService.query（）函数没有更新视图。 因此我认为每次$ scope.pk变量改变其值时我都需要调用该函数。 但我不知道该怎么做。 

I am new in angularjs and I think this should be a simple thing to do but I could not accomplish it. Basically what I need is to get a variable from an service and pass it as a parameter in a GET request. For this I am using the ngResource module.
 
The variable I get from the Service may change and what i need , likewise, is to change the url that made the request as well as the data that would render and be show in the view.
 
That's why i need to get that variable, pass it to a controller and make the $resource request in this controller with the param define in the service.
 
This is my controller:
 
.controller('LicoresController',['$scope','LicoresService','CategoriaService',function($scope,LicoresService,CategoriaService){ 
    $scope.licores=[];        
    $scope.pk=CategoriaService.getPk();
    console.log($scope.pk);
    LicoresService.query({disponibles:$scope.pk},function(data){
        $scope.licores=data;
        console.log(data);
        },function(error){
           console.log(error);
    });
}]);
 
LicoresService
 
.factory('LicoresService',['$resource',function($resource){

    return $resource('http://192.168.0.16:8000/api/productos/',{licorera:2},{isArray:true});         
}]);
 
And CategoriaService (from this one, i get the variable that i need to pass as a param for the request)
 
.factory('CategoriaService',function(){
    var pk=0;

    function getPk(){
        return pk;
    }

    function setPk(newpk){
        pk=newpk;
    }

    return{
      setPk:setPk,
      getPk:getPk,
    };

});
 
In the view i use the ng-repeat directive to iterate through the $scope.licores array.
 
<li ng-repeat="licor in licores"> 
  <img src="{{licor.imagen}}"/>     
  <table align="center"> 
    <tr><td >{{licor.marca|uppercase}}</td></tr>
    <tr><td >Tamaño</td><td >{{licor.tamano}}</td></tr>
    <tr>
        <td>Precio<br/>
            <span >$ {{licor.precio}}</span>
        </td>
    </tr>                   
  </table>
</li>  
 
The problem seems to be that the LicoresService.query() function is not updating the view. So I think that i need to call that function every time that the $scope.pk variable change his value. But i don´t know how to do it.

原文：https://stackoverflow.com/questions/35117743