planetstack/core/xoslib/static/js/xos-backbone.js

   1 SLIVER_API = "/plstackapi/slivers/";
   2
   3 XOSCollection = Backbone.Collection.extend({
   4     maybeFetch: function(options){
   5             // Helper function to fetch only if this collection has not been fetched before.
   6         if(this._fetched){
   7                 // If this has already been fetched, call the success, if it exists
   8             options.success && options.success();
   9             console.log("alreadyFetched");
  10             return;
  11         }
  12
  13             // when the original success function completes mark this collection as fetched
  14         var self = this,
  15         successWrapper = function(success){
  16             return function(){
  17                 self._fetched = true;
  18                 success && success.apply(this, arguments);
  19             };
  20         };
  21         options.success = successWrapper(options.success);
  22         console.log("call fetch");
  23         this.fetch(options);
  24     },
  25
  26     getOrFetch: function(id, options){
  27             // Helper function to use this collection as a cache for models on the server
  28         var model = this.get(id);
  29
  30         if(model){
  31             options.success && options.success(model);
  32             return;
  33         }
  34
  35         model = new Sliver({
  36             resource_uri: id
  37         });
  38
  39         model.fetch(options);
  40     }
  41 });
  42
  43 function xoslib() {
  44     this.sliver = Backbone.Model.extend({ urlRoot: SLIVER_API });
  45     this.slivers = XOSCollection.extend({ urlRoot: SLIVER_API,
  46                                     model: this.sliver});
  47 };
  48
  49 XOSLib = new xoslib();