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Ruby on Rails Tutorial paginate the users with AngularJS

ref.
http://angular-ui.github.io/bootstrap/#/pagination
http://getbootstrap.com/components/#pagination

1)AngularJS template view

$ vi app/assets/templates/users/index.html.erb

<div ng-controller="UsersIndexCtrl">
  <h1 class="text-center">All users</h1>
  <pagination total-items="totalitems"
              ng-model="currentpage"
              max-size="maxsize"
              items-per-page="itemsperpage"
              class="pagination-sm"
              previous-text="Previous"
              next-text="Next"
              first-text="First"
              last-text="Last"
              boundary-links="true">
  </pagination><br />
  <ul ng-repeat="user in currentitems" class="users">
    <li><img alt="{{user.name}}" src="https://secure.gravatar.com/avatar/{{hash(user.email)}}?s=52" />
      <a href="/users/{{user.id}}">{{user.name}}</a>
    </li>
  </ul>
  <pagination total-items="totalitems"
              ng-model="currentpage"
              max-size="maxsize"
              items-per-page="itemsperpage"
              class="pagination-sm"
              previous-text="Previous"
              next-text="Next"
              first-text="First"
              last-text="Last"
              boundary-links="true"
              rotate="false">
  </pagination>
</div>

2)AngularJS controller

myModule.controller("UsersIndexCtrl", function($scope, userResource, flashService, $location, sessionResource, $q) {
  $scope.maxsize = 5;
  $scope.itemsperpage = 3;
  $scope.currentpage = 1;
  var start = 0;
  var end = start + $scope.itemsperpage;

  var qgetUser = function(deferred) {
.........
  }
  var deferred = $q.defer();
  deferred.promise.then(function (result) {
    var user_info = result;
    if (user_info.user.id > 0) {
      userResource.index({}, function(response) {
        $scope.users = response;
        $scope.totalitems = $scope.users.length;
        $scope.currentitems = $scope.users.slice(start,end);

        $scope.$watch('currentpage', function() {
          start = ($scope.currentpage - 1) * $scope.itemsperpage;
          end = start + $scope.itemsperpage;
          $scope.currentitems = $scope.users.slice(start,end);
        },true);
      });
    } else {
      $location.path("/signin");
    }
  },function (reason) {
    console.log("qgetUser-Error");
  })
  qgetUser (deferred);

  $scope.hash = function(email) {
    return md5(email.toLowerCase());
  };
});