Ng-repeat on integer value

Question

I'm trying to use ng-repeat on a div which should contain a star image, each pie in the JSON has a rating property from 1-5, and I want to use this value to loop out x number of stars. I've got this working somewhat but it's flawed in the way that I can't re-sort the array and make the stars follow the correct item in the list since I'm using [$index] to track the iteration.

My solution is rather ugly as well since I'm creating arrays with as many index placeholders as the value of the rating property, and then pushing this into an array to loop out the appropriate number of images. I would like to have a more elegant solution.

How should I go about this problem without using [$index]?

Snippet of the JSON:

{"pies": [
    ...

    {
        "name": "Blueberry pie", 
        "imageUrl": "img/blueberrypie.png", 
        "id": "1",
        "rating": "5", //Ng-repeat depending on this value
        "description": "Blueberry pie is amazing."
    },

    ...
]}

My controller:

pieShopApp.controller('shopCtrl', ['$scope', '$http', '$routeParams', function ($scope, $http, $routeParams) {
    $scope.pieId = $routeParams.pieId,
    $scope.sortingOptions = ['A-Z', 'Rating'],
    $scope.sortingValues = ['name', 'rating'],
    $scope.ratings = [],
    $http.get('jsons/pies.json')
         .success(function(data, status) {
            $scope.pies = data;

            for (i = 0; i < $scope.pies.pies.length; i++) {

                switch ($scope.pies.pies[i].rating) {

                    case "1": $scope.ratings.push(["1"]); break;

                    case "2": $scope.ratings.push(["1", "2"]); break;

                    case "3": $scope.ratings.push(["1", "2", "3"]); break;

                    case "4": $scope.ratings.push(["1", "2", "3", "4"]); break;

                    case "5": $scope.ratings.push(["1", "2", "3", "4", "5"]); break;
                }
            }
            console.log($scope.ratings);
         })
         .error(function(status) {
            console.log(status);
         })
}]);

The list which contains the pie items:

<div id="pie-list-wrapper">
    <ul class="nav">
        <a href="#/pies/pieid" ng-repeat="pie in pies.pies | filter:query | orderBy:orderProp">
            <li class="list-item rounded-corners box-shadow">
                <aside>
                    <img src="{{pie.imageUrl}}" no-repeat alt="Image of the pie">
                </aside>
                <header>
                    <h1 ng-bind="pie.name" id="item-name" class="bold-text"></h1>
                </header>
                <article>
                    <span ng-bind="pie.description" id="item-desc"></span>
                </article>
                <footer id="item-rating">
                    <div ng-repeat="rating in ratings[$index]" class="rating-box"></div> //Contains the stars
                </footer>
            </li>
        </a>
    </ul>
</div>

Outcome:

Answer 1

Checkout this

<div ng-app='myApp' ng-controller="Main">
  <span ng-repeat="n in range('5')">Start{{$index}} &nbsp;&nbsp;</span>
</div>

$scope.range = function(count){

  var ratings = []; 

  for (var i = 0; i < count; i++) { 
    ratings.push(i) 
  } 

  return ratings;
}

Change your html to following

<div id="pie-list-wrapper">
  <ul class="nav">
    <a href="#/pies/pieid" ng-repeat="pie in pies.pies | filter:query | orderBy:orderProp">
      <li class="list-item rounded-corners box-shadow">
        <aside>
          <img src="{{pie.imageUrl}}" no-repeat alt="Image of the pie">
        </aside>
        <header>
          <h1 ng-bind="pie.name" id="item-name" class="bold-text"></h1>
        </header>
        <article>
          <span ng-bind="pie.description" id="item-desc"></span>
        </article>
        <footer id="item-rating">
          <div ng-repeat="start in range(pie.rating)" class="rating-box"></div> //Contains the stars
        </footer>
      </li>
    </a>
  </ul>
</div>

Answer 2

I solved this in this way: "items" is your array of objects in the $scope, accesing the property "rating", you can show the star if the value is less or the same comparing to the "rating" property.

In this example I'm using some icon fonts but for the case of an image is the same thing.

<div ng-repeat="item in items">
    <div class="item-offers"">
        <img ng-src="{{item.image}}">
        <div class="item-not-rating">
            <i class="icon ion-ios-star icon-rating" ng-if="item.rate >= 1"></i>
            <i class="icon ion-ios-star icon-rating" ng-if="item.rate >= 2"></i>
            <i class="icon ion-ios-star icon-rating" ng-if="item.rate >= 3"></i>
            <i class="icon ion-ios-star icon-rating" ng-if="item.rate >= 4"></i>
            <i class="icon ion-ios-star icon-rating" ng-if="item.rate >= 5"></i>
        </div>                        
    </div>
</div>

I've found a better solution that solves this requirement at all:

https://github.com/fraserxu/ionic-rating