angularjs - ngResource custom model actions -

i'm using ngresource handle models in ionic/angular app , i'm having trouble figuring out how/if can make custom actions on resource.

i'm storing model instances in local storage , when update record, want update local storage well. have working, i'm having copy , paste code multiple instances , keep dry.

logentry.update($scope.timelog, function(data) {   // update local storage   ( var = 0; < logentries.length; i++) {     if(logentries[i].id == $scope.timelog.id){       logentries[i] = $scope.timelog;     }   };    localstorageservice.set('logentries', logentries); }); 

here situation update record, , after promise returns update local storage. make repeatable, how envision being possible (based on other things i've seen in other frameworks , other languages) like:

logentry.update($scope.timelog, function(data) {   // update local storage   logentry.updatelocalstorage($scope.timelog); }); 

my resource looks like:

.factory('logentry', function(config, $resource) {   return $resource(config.apiurl + 'logentries/:id/', {}, {     'update': {       method:'put',       params: { id: '@id' }     }   }); }) 

maybe i'm missing in docs, it's pretty short , i'm not seeing way this. logentry.updatelocalstorage($scope.timelog); possible store ngresource, or custom actions need come somewhere else? i'd keep model-related actions if possible.

you use transformresponse method in resource definition. it's kind of hack since don't need alter response, allows preform actions returned data:

{function(data, headersgetter)|array.<function(data, headersgetter)>} 

transform function or array of such functions. transform function takes http response body , headers , returns transformed (typically deserialized) version. default, transformresponse contain 1 function checks if response looks json string , deserializes using angular.fromjson. prevent behavior, set transformresponse empty array: transformresponse: []

https://docs.angularjs.org/api/ngresource/service/$resource

.factory('logentry', function (config, $resource) {     return $resource(config.apiurl + 'logentries/:id/', {}, {         'update': {             'method': 'put',             'params': {                 'id': '@id'             },             'transformresponse': function (data, header) {                 // stuff data                 return data;             }         }     }); }) 

that way execute when response use transformrequest method, fire on request regardless if you're getting response.

{function(data, headersgetter)|array.<function(data, headersgetter)>} 

transform function or array of such functions. transform function takes http request body , headers , returns transformed (typically serialized) version. default, transformrequest contain 1 function checks if request data object , serializes using angular.tojson. prevent behavior, set transformrequest empty array: transformrequest: []

https://docs.angularjs.org/api/ngresource/service/$resource

which choose depends on usecase. using transformrequest save localstorage, when remote down.