TwigをつかってBackboneのModelとかCollectionとかでリクエスト先のURLを指定する

hoge.html.twig

<script>
  var HogeModel = Backbone.Model.extend({
    methodToURL: {
      'read'  : '{{ path("get_hoge") }}',
      'create': '{{ path("post_hoge") }}',
      'update': '{{ path("put_hoge", {"id": "id"}) }}',
      'delete': '{{ path("delete_hoge", {"id": "id"}) }}'
    },
    defaults: function() {
      return {};
    },
    sync: function(method, model, options) {
      options = options || {};
      options.url = (this.methodToURL[method.toLowerCase()] || options.url).replace('id', model.get('id'));      
      Backbone.sync(method, model, options);
    }
  });

  var HogeCollection = Backbone.Collection.extend({
    model: ConflictSite,
    url: '{{ path("get_hoges") }}',
  });  
</script>