angularjs越来越NG选项OBJ ID而不是价值

Question

 <select ng-model="ad.Categorie" 
       ng-options="obj.id as obj.name for obj in categories" 
       ng-change="getSubcategories()" 
       class="form-control" 
       ng-required="true" 
       name="categorie"> 
     <option value="">-- --</option> 
     </select> 

当我提出让NG选项数组索引，而不是ad.Categorie价值，我解决了隐藏的输入

<input type="hidden" name="categorie" value="@{{ad.Categorie}}" /> 

但似乎不对任何解决方案理念？

var categories = [{"id":1,"name":"cat1"},{"id":2,"name":"cat2"}]; 

从数据库读取数据。我想要类别ID为fk

public function store(Request $request) 
{ 
    $ad = new Ad; 
    $ad->categorie_id= $request->categorie; 
    $ad->subcategorie_id= $request->subcategorie; 
    $ad->type_id= $request->type; 
    $ad->location_id= $request->location; 
    $ad->title= $request->title; 
    $ad->description= $request->description; 
    $ad->price= $request->price; 
    $ad->phone= $request->phone; 
    $ad->code= $request->code; 
    //$ad->img = $request->file('img'); 
    //$files = $request->file('img'); 
    $ad->save(); 
    return redirect('/'); 
} 

是这个数组$ request-> categorie这就是为什么我得到索引？

Answer 1

你的代码已经得到正确id，我假设你想要得到的对象或索引。这个代码是用于获取索引ID和对象：

<select ng-model="ad.Categorie" 
    ng-options="obj.name for obj in categories" 
    ng-change="getSubcategories()" 
    class="form-control" 
    ng-required="true" 
    name="categorie"> 
    </select> 

在你的控制器：

function myCtrl($scope) { 
    $scope.categories = [{ 
    "id": 11, 
    "name": "name1" 
    }, { 
    "id": 22, 
    "name": "name2" 
    }]; 
    $scope.ad = {} 
    $scope.getSubcategories = function() { 
    console.log("selected object= ", $scope.ad.Categorie); 
    console.log("selected index= ", $scope.categories.indexOf($scope.ad.Categorie)); 
    console.log("selected id= ",$scope.ad.Categorie.id); 
    } 
} 

这里是工作示例： https://jsfiddle.net/U3pVM/30048/