set ngmodel view value from controller

<!DOCTYPE html>
<html>

  <head>
    <script data-require="angular.js@1.4.3" data-semver="1.4.3" src="https://code.angularjs.org/1.4.3/angular.js"></script>
    <link rel="stylesheet" href="style.css" />
    <script src="script.js"></script>
  </head>

    <body ng-app="app" ng-controller="MainController as main">
      <input ng-model="main.pasteValue"/> <button ng-click="main.paste()">paste</button>
      <ul>
        <li ng-repeat="value in main.values">
          <input ng-model="value.v" twice /> {{value.v}}
        </li>
      </ul>
      
      <ul>
        <li ng-repeat="value in main.values">
          <input ng-model="value.v" twice set-view="value.i"/> {{value.i}}({{value.v}})
        </li>
      </ul>
      
      <ul id="values">
        <li ng-repeat="value in main.values2">
          <input ng-model="value.v" twice /> {{value.v}}
        </li>
      </ul>
    </body>

</html>

angular.module('app', [])
  .controller('MainController', MainController)
  .directive('twice', twice)
  .directive('setView', setView);

    MainController.$inject = ['$scope']
    function MainController($scope) {
      this.values = [
        {v: 1}, {v: 2}, {v: 3}
      ];
      this.values2 = [
        {v: 1}, {v: 2}, {v: 3}
      ];
      this.pasteValue = 42;
      
      this.paste = function() {
        var value = this.pasteValue;
        // 1
        this.values.forEach(function(v) { v.i = value });
        
        // 2
        var inputs = angular.element(document.getElementById('values')).find('input');
        angular.forEach(inputs, function(input) {
          var ngModel = angular.element(input).controller('ngModel');
          ngModel.$setViewValue(value);
          input.value = value;
        });
      };
    }
    
    function twice() {
      return {
        require: 'ngModel',
        link: function(scope, elem, attr, ngModel) {
          ngModel.$formatters.push(function(x) { return 2 * x });
          ngModel.$parsers.push(function(x) { return 0.5 * x });
        }
        
      }  
    }


function setView() {
  return {
    require: 'ngModel',
    scope: {
      setView : '='
    },
    link: function(scope, elem, attr, ngModel) {
      scope.$watch('setView', function(newValue) {
        if (angular.isDefined(newValue)) {
          elem.val(newValue);
          ngModel.$setViewValue(newValue);
        }
      })
    }
    
  }  
}