AngularJS 1.5.8-2个级别的ng-repeat中的单选按钮列表无法正常工作

debugcn 发表于 Dev

吉图·拉詹（Jithu Rajan）

请检查以下代码，

angular.module('myApp', []).controller('myController', ['$scope',
  function($scope) {
    setTimeout(function() {
      $scope.policies = [{
        drivers: [{
          gender: 'M'
        }, {
          gender: 'F'
        }]
      }, {
        drivers: [{
          gender: 'M'
        }, {
          gender: 'F'
        }]
      }];
      $scope.$apply();
    }, 1000)

  }
]);

<script type="text/javascript" src="https://cdnjs.cloudflare.com/ajax/libs/angular.js/1.5.8/angular.js"></script>

<div ng-app='myApp'>
  <div ng-controller='myController'>
    <div ng-repeat='policy in policies'>
      <div ng-repeat='driver in policy.drivers'>
        Gender : M
        <input type='radio' name='driverGender{{$index}}{{$parent.$index}}' value='M' ng-model='driver.gender' />F
        <input type='radio' ng-model='driver.gender' name='driverGender{{$index}}{{$parent.$index}}' value='F' />
      </div>
    </div>
  </div>
</div>

我试图在ng-repeat的2个级别内实现一对单选按钮。我可以检查单选按钮，值会按预期更改。但是，如果值是从控件分配的，则只有最后一对单选按钮会更新。当我将版本更改为1.2.0时，它可以正常工作。请检查下面的样本

angular.module('myApp', []).controller('myController', ['$scope',
  function($scope) {
    setTimeout(function() {
      $scope.policies = [{
        drivers: [{
          gender: 'M'
        }, {
          gender: 'F'
        }]
      }, {
        drivers: [{
          gender: 'M'
        }, {
          gender: 'F'
        }]
      }];
      $scope.$apply();
    }, 1000)

  }
]);

<script type="text/javascript" src="https://cdnjs.cloudflare.com/ajax/libs/angular.js/1.2.0/angular.js"></script>

<div ng-app='myApp'>
  <div ng-controller='myController'>
    <div ng-repeat='policy in policies'>
      <div ng-repeat='driver in policy.drivers'>
        Gender : M
        <input type='radio' name='driverGender{{$index}}{{$parent.$index}}' value='M' ng-model='driver.gender' />F
        <input type='radio' ng-model='driver.gender' name='driverGender{{$index}}{{$parent.$index}}' value='F' />
      </div>
    </div>
  </div>
</div>

代码或任何其他替代方法有问题吗？

吉图·拉詹（Jithu Rajan）

最后，我找到了一个解决方案。而不是'driverGender{{$index}}{{$parent.$index}}'我创建了返回相同函数的函数。

$scope.getRadioButtonName=function(index,parentIndex){
  return 'gender'+index+parentIndex;
}

在下面检查。

// Code goes here
angular.module('myApp', []).controller('myController', ['$scope',
  function($scope) {
   
      $scope.policies = [{
        drivers: [{
          gender: 'M'
        }, {
          gender: 'F'
        }]
      }, {
        drivers: [{
          gender: 'M'
        }, {
          gender: 'F'
        }]
      }];
     
    $scope.getRadioButtonName=function(index,parentIndex){
      return 'gender'+index+parentIndex;
    }
  }
]);

<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.5.0/angular.min.js"></script>

<div ng-app='myApp'>
  <div ng-controller='myController'>
    <div ng-repeat='policy in policies'>
      <div ng-repeat='driver in policy.drivers'>
        Gender : M
        <input type='radio' ng-model='driver.gender' name='{{getRadioButtonName($index,$parent.$index)}}' value='M' />F
        <input type='radio' ng-model='driver.gender' name='{{getRadioButtonName($index,$parent.$index)}}' value='F' />
      </div>
    </div>
  </div>
</div>

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