Angular.js：仅更新（数据绑定）一项ng-repeat

Question

I have the following html:

  <li ng-repeat="friend in friends">
        <span ng-repeat="(key, value) in friend.aktuell">
            <input type="text" ng-model="friend.aktuell[key]"> 
        </span>
      <quick-datepicker ng-model="auditDate"></quick-datepicker>
      <button ng-click="audit(auditDate, friend._id)" class="btn btn-info">Audit</button>
  </li>

Now how can I update only the input fields of the friend[index] - so to speak - that has been clicked via the audit button?

eg

   $scope.audit = function(auditDate, id){
            $scope.friends[1].aktuell = {someData:someValues}; // this works if the index is hard coded
        });
    };

Above works if the index '1' is hard coded into 'friends[1]', but of course I want to no update this in the second input row, but in the one that has been clicked.

Idea: Can I pass the current clicked "indexifier" to my audit function or alternatively can I alter the input fields where "friend._id = friend._id"?

Screenshot:

Answer 1

ng-repeat中有$ index变量可用：

ng-click="audit(auditDate, $index)"

Answer 2

Why don't you pass the friend reference instead of passing its index?

<button ng-click="audit(auditDate, friend)" class="btn btn-info">Audit</button>

And on the controller:

$scope.audit = function(auditDate, friend){
        friend.aktuell = {someData:someValues};
    });
};