angularjs - Angular JS Custom Filter Trouble -


i'm working on learning angular js creating own app. focus angular, i'm not connecting database 1 in real world - have array of movies = [{title: '', genre: '', rating: ''}...] hard coded js file.

i have series of buttons different movie ratings: g, pg, pg13, r. each button should work filter , return movies who's rating matches button. when button clicked, data.selectedrating stores value. however, i'm running trouble built-in filter because if there no movies desired rating, return of them when should return none. , if "pg" button clicked returns movies rating of pg , pg13.

is there way fix this? thought may need make custom filter, i'm not sure how go (as i'm sure you'll able tell). suggestions? thanks!

here's have:

html

// data.selectedrating holds value of button clicked  // built in filter looked this:  // ng-repeat="movie in movies | filter: data.selectedrating" <table>     <tr ng-repeat="movie in movies">         <td>             {{movie.title | filterrating}}         </td>     </tr> </table>

js

angular.module('movieapp', ['nganimate', 'ui.router']) .factory('data', function() {         return { sorttype: '',                  selectedgenre: '',                 selectedrating: ''};  })  .controller('formcontroller', ['$scope', 'data', function($scope, data) {     $scope.data = data;     $scope.movies = [     {title:'pitch perfect 2', genre: 'musical', rating: 'pg13'},     {title:'longest ride', genre: 'romance', rating: 'pg13'},     {title:'furious 7', genre: 'action', rating: 'pg13'},     {title:'home', genre: 'adventure', rating: 'pg'},     {title:'insurgent', genre: 'action', rating: 'pg13'}     ];  }])  .filter('filterrating', function() {      var out = [];     return function(selectedrating, a) {          if(selectedrating.rating == data.selectedrating)         {             out.push(selectedrating.title);         }     }     return out; });

============================================

update - have added suggestions few of comments below - thanks! now, instead of name of movie, "undefined" return. ideas?

updated code: html: 

... <td>     {{movie.title | filterrating}} </td> ...

js

.filter('filterrating', function() {      return function(selectedrating, movies) {          var out = [];          if(data.selectedrating == selectedrating.rating)         {             alert(' in here');             out.push(movies.title);         }         return out;     } });

your code should :

html

 <tr ng-repeat="movie in movies | filterrating ">       <td>           {{movie.title }}       </td>   </tr>

js

.filter('filterrating', function(data) {   return function(selectedrating) {   var out = [];     (var = 0; < selectedrating.length; i++) {        if(selectedrating[i].rating == data.selectedrating)       {         out.push(selectedrating[i]);       }      }     return out; }  });

the reason it, want filter movie object , not title itself

plunkr : http://plnkr.co/edit/nyax9kibhqyyxcqamyhc?p=preview


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