Javascript Angular JS：使用动态 ng-model 进行 ng-repeat

Angular JS: ng-repeat with dynamic ng-model

提问by MDT

I have this workingpiece of code that is repeated multiple times, hence would be great for a ng-repeat loop. For example, two instances of my code are the following.

我有这段重复多次的工作代码，因此非常适合 ng-repeat 循环。例如，我的代码的两个实例如下。

    <div>
        <input type="text" ng-model="searchParamaters.userName" placeholder="User Name"/>
        <i class="fa fa-times" ng-click="resetSearchField(filterParamDisplay[0].param)" ng-show="showParam(filterParamDisplay[0].param)"></i>
    </div>
    <div>
        <input type="text" ng-model="searchParamaters.userEmail" placeholder="User Email"/>
        <i class="fa fa-times" ng-click="resetSearchField(filterParamDisplay[1].param)" ng-show="showParam(filterParamDisplay[1].param)"></i>
    </div>

This is the filterParamDisplay array in Javascript:

这是 Javascript 中的 filterParamDisplay 数组：

    $scope.filterParamDisplay = [
        {param: 'userName', displayName: 'User Name'},
        {param: 'userEmail', displayName: 'User Email'}
    ];

I have been trying to do that into a ng-repeat loop, but without success so far. This is what I have coded atm.

我一直试图在 ng-repeat 循环中做到这一点，但到目前为止没有成功。这是我编码的atm。

    <div ng-repeat="param in filterParamDisplay">
        <input type="text" ng-model="searchParams[{{param}}]" placeholder="{{param.displayName}}"/>
        <i class="fa fa-times" ng-click="resetSearchField(filterParamDisplay[$index].param)" ng-show="showParam(filterParamDisplay[$index].param)"></i>
    </div>

The problems are into the ng-model variable above, and into the $index in the ng-click and ng-show. Not sure if this can be done at all, any help is much appreciated, thanks!

问题出在上面的 ng-model 变量中，以及 ng-click 和 ng-show 中的 $index 中。不确定这是否可以完成，非常感谢任何帮助，谢谢！

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UPDATE: Thanks for all the answers, using

更新：感谢所有的答案，使用

     <div ng-repeat="p in filterParamDisplay">
...
   ng-model="searchParams[p]" 

Works great!

效果很好！

Still struggling on the showParam and resetSearchField functions which do not work properly yet using $index. Here is my code.

仍然在 showParam 和 resetSearchField 函数上苦苦挣扎，但使用 $index 仍无法正常工作。这是我的代码。

    $scope.searchParams = $state.current.data.defaultSearchParams;

    $scope.resetSearchField = function (searchParam) {
        $scope.searchParams[searchParam] = '';
    };

    $scope.showParam = function (param) {
        return angular.isDefined($scope.searchParams[param]);
    };

回答by Cem ?zer

As you bind your ng-models to searchParameters.userNameand searchParameters.userMailat first example, you must use searchParameters[param.param]for ng-model in ng-repeat. Also like others said, you don't need to use $index, you got your object as paramin ng-repeat scope.

当你绑定你的NG-模型searchParameters.userName，并searchParameters.userMail在第一个例子中，你必须使用searchParameters[param.param]在NG-重复了NG-模型。也像其他人说的那样，你不需要使用 $index，你的对象就像param在 ng-repeat 范围内一样。

<div ng-repeat="param in filterParamDisplay">
    <input type="text" ng-model="searchParameters[param.param]" placeholder="{{param.displayName}}"/>
    <i class="fa fa-times" ng-click="resetSearchField(param.param)" ng-show="showParam(param.param)"></i>
</div>

Here is working FIDDLE

这是工作中的FIDDLE

回答by Rajamohan Anguchamy

<div ng-app="dynamicAPP">
    <div ng-controller="dynamicController">
        <div ng-repeat="param in filterParamDisplay">
            <input type="text" ng-model="searchParams[param.param]" placeholder="{{param.displayName}}" /> <i class="fa fa-times" ng-click="resetSearchField(filterParamDisplay[$index].param)" ng-show="showParam(filterParamDisplay[$index].param)"></i>
        </div>{{searchParams}}</div>
</div>

Jsfiddler link this one for get a single object like 'username' or 'email'

Jsfiddler 链接这个以获得单个对象，如“用户名”或“电子邮件”

you want single value in ng-show and ng-click use above one. or other wise use belowed one.

你想在 ng-show 和 ng-click 中使用单个值高于一个值。或以其他方式明智地使用下面的一个。

<div ng-app="dynamicAPP">
    <div ng-controller="dynamicController">
        <div ng-repeat="param in filterParamDisplay">
            <input type="text" ng-model="searchParams[param.param]" placeholder="{{param.displayName}}" /> <i class="fa fa-times" ng-click="resetSearchField(.param)" ng-show="showParam(param)"></i>
        </div>{{searchParams}}</div>
</div>

Jsfiddler link this one is get whole object based on the control

Jsfiddler 链接这个是基于控件获取整个对象

this will passes the whole set of object list.

这将传递整个对象列表集。

回答by Foo L

You don't need to interpolate angular variables inside ng-*directives.

您不需要在ng-*指令中插入角度变量。

Try:

尝试：

HTML:

HTML：

<div ng-repeat="p in filterParamDisplay">
    <input type="text" ng-model="searchParams[p]" placeholder="{{p.displayName}}"/>
    <i ng-click="printme(p.param)">click</i>
</div>

Controller:

控制器：

$scope.filterParamDisplay = [
    {param: 'userName', displayName: 'User Name'},
    {param: 'userEmail', displayName: 'User Email'}
];
$scope.printme = function(v) {
    console.log(v);
};

jsfiddle

提琴手

回答by MiTa

As @aarosil said you do not need to use $index. I wrote a small jsfiddle, I don't know your logic behind showParam so I mocked it.

正如@aarosil 所说，您不需要使用$index. 我写了一个小的 jsfiddle，我不知道你在 showParam 背后的逻辑，所以我嘲笑它。

View :

看法 ：

<div ng-controller="Ctrl">
  <div ng-repeat="param in filterParamDisplay">
    <input type="text" ng-model="searchParams[param.param]" placeholder="{{param.displayName}}"/>
    <i class="fa fa-times" ng-click="resetSearchField(param)" ng-show="showParam(param)"></i>
  </div>
</div>

and controller :

和控制器：

$scope.searchParams = {};  
$scope.filterParamDisplay = [
    {param: 'userName', displayName: 'User Name'},
    {param: 'userEmail', displayName: 'User Email'}
];
$scope.resetSearchField = function(param){
  $scope.searchParams[param.param] = "";
};
$scope.showParam = function(param){ ... }

http://jsfiddle.net/29bh7dxe/1/

http://jsfiddle.net/29bh7dxe/1/