NG-必需的，如何在输入之间使用它？

Question

我创建了一个表单，为X元素重复了两个输入。仅当我们在另一个元素中放入某些内容时，才需要每个元素：

My.HTML

<form ng-submit="validate();">
 <div ng-reapet="elem in Myelements">
  <label>{{elem.name}}</label>
  <div>
    New Value : <input name="value" ng-required="reason.$valid" ng-model="elem.value" />
  </div>
  <div>
    Why : <textarea name="reason" ng-required="value.$valid" ng-model="elem.reason"/>
  </div>
 </div>  
 <input type="submit" value="Submit" />
</form>

这不是预期的工作。我怎样才能让它正常工作？

EDIT对我来说正确的解决方案（接受的答案帮助了我）

<form ng-submit="validate();">
    <div ng-reapet="elem in Myelements">
        <label>{{elem.name}}</label>
        <div>
            New Value : <input name="value" ng-required="elem.reason" ng-model="elem.value" />
        </div>
        <div>
            Why : <textarea name="reason" ng-required="elem.value" ng-model="elem.reason"/>
        </div>
    </div>  
    <input type="submit" value="Submit" />
</form> 

Answer 1

只需要把其他输入值

<form ng-submit="validate();">
    <div ng-reapet="elem in Myelements">
        <label>{{elem.name}}</label>
        <div>
            New Value : <input name="value" ng-required="elem.reason !== ''" ng-model="elem.value" />
        </div>
        <div>
            Why : <textarea name="reason" ng-required="elem.value !== ''" ng-model="elem.reason"/>
        </div>
    </div>  
    <input type="submit" value="Submit" />
</form>