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My app is in this Fiddle I need to render a star rating system dynamically from a http service, where the current stars and maximum stars can vary with each case.
Is it a good idea to create arrays from $scope.current and
$scope.max - $scope.current and pass them and run ng-repeat over them, or there is a more optimised solution than this.
Iteration ng-repeat only X times in AngularJs
420
Star Rating can be done either statically (read-only) or dynamically
If you want just simply to display Rating as star then try the below one
Working Example
html
<body ng-app="starApp">
<div ng-controller="StarCtrl"> <span ng-repeat="rating in ratings">{{rating.current}} out of
{{rating.max}}
<div star-rating rating-value="rating.current" max="rating.max" ></div>
</span>
</div>
</body>
script
var starApp = angular.module('starApp', []);
starApp.controller('StarCtrl', ['$scope', function ($scope) {
$scope.ratings = [{
current: 5,
max: 10
}, {
current: 3,
max: 5
}];
}]);
starApp.directive('starRating', function () {
return {
restrict: 'A',
template: '<ul class="rating">' +
'<li ng-repeat="star in stars" ng-class="star">' +
'\u2605' +
'</li>' +
'</ul>',
scope: {
ratingValue: '=',
max: '='
},
link: function (scope, elem, attrs) {
scope.stars = [];
for (var i = 0; i < scope.max; i++) {
scope.stars.push({
filled: i < scope.ratingValue
});
}
}
}
});
If you want to do Star Rating dynamically try this out
Working Demo
Html
<body ng-app="starApp">
<div ng-controller="StarCtrl"> <span ng-repeat="rating in ratings">{{rating.current}} out of
{{rating.max}}
<div star-rating rating-value="rating.current" max="rating.max" on-rating-selected="getSelectedRating(rating)"></div>
</span>
</div>
</body>
script
var starApp = angular.module('starApp', []);
starApp.controller('StarCtrl', ['$scope', function ($scope) {
$scope.rating = 0;
$scope.ratings = [{
current: 5,
max: 10
}, {
current: 3,
max: 5
}];
$scope.getSelectedRating = function (rating) {
console.log(rating);
}
}]);
starApp.directive('starRating', function () {
return {
restrict: 'A',
template: '<ul class="rating">' +
'<li ng-repeat="star in stars" ng-class="star" ng-click="toggle($index)">' +
'\u2605' +
'</li>' +
'</ul>',
scope: {
ratingValue: '=',
max: '=',
onRatingSelected: '&'
},
link: function (scope, elem, attrs) {
var updateStars = function () {
scope.stars = [];
for (var i = 0; i < scope.max; i++) {
scope.stars.push({
filled: i < scope.ratingValue
});
}
};
scope.toggle = function (index) {
scope.ratingValue = index + 1;
scope.onRatingSelected({
rating: index + 1
});
};
scope.$watch('ratingValue', function (oldVal, newVal) {
if (newVal) {
updateStars();
}
});
}
}
});
There is a wonderful tutorial here for more explanation about Angular Star Rating
90
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