Parsing json using model - Sencha -

i trying parse json having problem create model how can create effiecient model json below can access def-id doing record.get('def_id'):

i creating model as:

ext.define('myapp.model.todaysword', { extend: 'ext.data.model',  requires: ['myapp.model.todayswordmenu'],  config: {     fields: [         {name: 'status', mapping: 'status'},         {name: 'message', mapping: 'message'},         {name:'data', mapping: 'data'},         {name: 'definitions', mapping: 'definitions.defintion'},         {name: 'ratings', mapping: 'definitions.rating'},     ], } });  ext.define('myapp.model.todayswordmenu', { extend: 'ext.data.model', config: {     fields: [         'name',         'author',         'word_id',         'category',       'definitions',       'rating',       'def_id',       'example',       'author',       'is_favourite'     ],      belongsto: "myapp.model.todaysword" } }); 

i getting response above model incorrect , having hard time solve it.

my json:

({ "accountinfo":{     "expire_date":"2014-07-24 22:44:14",     "subscribe_date":"2013-07-24 22:44:14",     "time_remain":" 323 days 22 hours 2 minutes",     "status":"not expired" }, "status":"true", "message":"todays word", "data":[     {         "name":"paint",         "author":"admin",         "word_id":"1",         "category":"business",         "definitions":[             {                 "rating":"green",                 "defintion":"to put color in something",                 "def_id":"1",                 "example":null,                 "author":"admin",                 "is_favourite":"yesstar"             },             {                 "rating":"red",                 "defintion":"this new definition of word paint.",                 "def_id":"42",                 "example":null,                 "author":"admin",                 "is_favourite":"nostar"             }         ]     } ] }) 

any appreciated.

you use ext.json.decode() , pass function responsetext. create needed object.