How to make models dynamic in my template angularjs -

i have template text box in directive,on click of button(add) repeating same directive 10 times 10 times text box come ng-model remain same each text box , need make dynamic on each repeat of template ng-model becomes different. problem not able create dynamic ng-model text box distinguish between values entered can access in controller.how make model of text box dynamic.

app.directive("configdirectives", function($compile) {        return {          restrict: 'ea',          link: function(scope, element, $attr) {            console.log('scope in directive : ' + scope);            scope.add = function() {              console.log("inside directive value of satcount", satcount++);              $newdirective = angular.element('<add-config></add-config>');              element.append($newdirective);              $compile($newdirective)(scope);              console.log('scope in directive : ' + scope);            }          }        }).directive("addconfig", function() {          return {            restrict: 'ae',            template: '<div>{{scope.satcount}}' +              '<input type="text" ng-model="x"/>' +              '</div>',            link: function(scope, element, attribute) {              scope.remove = function() {                element.remove();              }            }          });        <!-- controller -->        (function() {          var self = null;          var configruleclass = class.extend({            init: function($scope, configservice) {              self = this;              self.$scope = $scope;            },            save: function() {              console.log("values parent configuration---");              console.log("config1---", self.lstconfigs.name);              console.log("dynamic filed data" + self.dynamicconfigs);              }          });          app.controller("configrulecntrl", ['$scope', 'configservice', configruleclass]);        })();

<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.23/angular.min.js"></script>  <div id="xx" data-ng-controller="configrulecntrl y">    <input type="text" ng-model="y.x" />    <button data-ng-click="add()">add</button>    <br>    <button data-ng-click="y.save()">save</button>    <config-directives></config-directives>  </div>

try code create dynamic model on using input

working code clck here

<input type="text" ng-model="newobject[item.name]"> 

to maintain previous data use copy

 var original = data.data;  $scope.newobject =angular.copy(original);