backbone.js - Using Backbone Relational to handle JSON-API Data -

we've been using backbone relational model our orm relationship in front end instance:

{   id: 2   username: "bob"   comments: [      {         id:5,         comment: "hi",         user: {            username: 'bob'         }      }    ] } 

that has been working great using models such in front end:

  class user extends app.relationalmodel     relations: [{       type: backbone.hasmany,       key: 'comments',       relatedmodel: 'comment',       collectiontype: 'commentcollection'     }] 

however our api has changed , respecting more of json-api spec data end encapsulated inside of 'data'.

{   data: {     id: 2     username: "bob"     data: {       comments: [          {             id:5,             comment: "hi",             user: {                username: 'bob'             }          }       ]     },     meta: {     }   } } 

how can instruct backbone relational data 'comments' relation .data instead of mapping json structure directly?

for ''class user'' can implement parse method so

class user   parse: (response) ->     response.data 

but how comments relation??

how's this?

parse: function (response) {     var fixed_response = response.data;     fixed_response.comments = fixed_response.data.comments;     delete fixed_response.json.data;     return fixed_response; }