angularjs - Error for Cast to ObjectId failed for value "[object Object],[object Object],[object Object] -

i using mongodb . when want update fields getting following error cast objectid failed value

[object object],[object object],[object object].

when post empty let me update properties while post somethings not able update provider properties , getting following error view have used modal ui bootstapt.

<label class="col-lg-2 control-label">company name</label>         <div class="col-lg-10">           <input name="name" type="text" ng-model="provider.name" minlength="4" class="form-control" placeholder="amazon web services" required>           <span class="help-block" ng-show="cspregister.name.$dirty &&  cspregister.name.$invalid"> not valid name!</span>         </div>       </div>       <div class="form-group">         <label class="col-lg-2 control-label">abbreviated company name</label>         <div class="col-lg-10">           <input name="abbreviated" type="text" ng-model="provider.abbreviated" class="form-control" placeholder="aws" >         </div>       </div>       <div class="form-group">         <label class="col-lg-2 control-label">home page</label>         <div class="col-lg-10">           <input name="url" type="url"  ng-model="provider.url" class="form-control" placeholder="http://aws.amazon.com/" required>           <span class="help-block" ng-show="cspregister.url.$error.url"> not valid url!</span>         </div>       </div>       <!--start point of muli select-->       <div class="form-group">         <label class="col-lg-2 control-label">product name</label>         <div class="col-lg-10">           <select name="services"  multiple ng-model="provider.services" class="form-control" required >             <option value="paas">paas</option>             <option value="saas">saas</option>             <option value="dbaas">dbaas</option>           </select>         </div>       </div>       <div class="form-group">         <label  class="col-lg-2 control-label">location</label>         <div class="col-lg-10">           <select multiple  ng-model="provider.locations" class="form-control" class="form-control" required>             <option ng-repeat="item in locations" value="{{item.name}}">{{item.name}}</option>           </select>           <span class="help-block">a longer block of text breaks onto new line , may extend beyond 1 line.</span>         </div>       </div>       <!--end of multi selector-->       <div class="form-group">         <label class="col-lg-2 control-label">description</label>         <div class="col-lg-10">           <textarea name="description" ng-model="provider.description" class="form-control" rows="3" required></textarea>         </div>       </div>     </form> </div> <div class="modal-footer">     <button ng-click="updateprovider(provider);ok()" class="btn btn-success"><i class="icon-white icon-plus"></i> update & close</button>     <button ng-click="cancel()" class="btn btn-warning">cancel</button> </div> 

provider schema

var providerschema = new schema({   name: string,   abbreviated: string,  // company:string,   services: {type : array, default:[]},   locations: {type : array, default:[]},   description: string,   url: string,   author: string,   upvotes: { type:number, default:0 },   upvoteuser:{type : array, default:[]},   createdon: { type: date, default: date.now },   certificates:[{ type: mongoose.schema.types.objectid, ref: 'certificates' }],   posts: [{ type: mongoose.schema.types.objectid, ref: 'post' }] });  providerschema.methods.findbyname = function (cb) {   return this.model('provider').find({ name: this.name }, cb); } providerschema.methods.upvote = function(cb) {   this.upvotes += 1;   this.save(cb, function(error) {     if(error){       console.error("error saving object: ", error)     }   }); }; 

this update in factory

ob.updateprovider = function (provider) {        return $http.put('/api/providers/' + provider._id , provider, {             headers: {authorization: 'bearer '+auth.gettoken()}             }).success(function(provider){        })     }; 

and update function in api

exports.update = function(req, res) {   if(req.body._id) { delete req.body._id; }   provider.findbyid(req.params.id, function (err, provider) {     if (err) { return handleerror(res, err); }     if(!provider) { return res.send(404); }      var updated = _.merge(provider, req.body);     updated.save(function (err) {       if (err) { return handleerror(res, err); }       return res.json(200, provider);     });   }); }; 

this have in controller.

$scope.updateprovider = function (updatedprovider) {                 var provider = updatedprovider;                 providers.updateprovider(provider)                   .success(function () {                     providers.getall();                     $scope.status = 'updated provider! refreshing provider list.';                   })                   .error(function(err, status) {                     console.log(err);                     console.log(status);                   });               }; 

this result updated:

 abbreviated: 'aws',   _id: 55663fc20e9009c82dccba94,   company: 'http://dbpedia.org/resource/snaplogic',   name: 'snaplogic',   description: 'snaplogic commercial software company provides data  2006. snaplogic headed ex-ceo , co-founder of informatica, gaurav dhill   __v: 25,   posts:    [ { upvotes: 4,        upvoteuser: [object],        comments: [object],        __v: 16,        author: 'juan y maryam',        body: 'cc',        title: 'cczzs',        _id: '5569f716a4c7bbd4219a3303' },      { upvotes: 4,        upvoteuser: [object],        comments: [],        __v: 4,        author: 'juan y maryam',        body: 'zzaaa',        title: 'juan',        _id: '5569fb10c61b1af02fa1cc39' },      { upvotes: 4,        upvoteuser: [object],        comments: [],        __v: 4,        author: 'juan y maryam',        body: 'xxxxx',        title: 'xxxxxxxxxx',        _id: '5569fb15c61b1af02fa1cc3a' },      { upvotes: 2,        upvoteuser: [object],        comments: [],        __v: 2,        author: 'test user',        body: 'nnnnnnnnnnnnnnnn',        title: 'ooooooooooooo',        _id: '5569fcd3335d49d82ccef9cd' },      { upvotes: 1,        upvoteuser: [object],        comments: [],        __v: 1,        author: 'editor',        body: 'ss',        title: 'sssssss',        _id: '556a07892d62dadc182fcc1f' },      { upvotes: 1,        upvoteuser: [object],        comments: [],        __v: 1,        author: 'maya beaty',        body: 'ssssssss',        title: 'ssssssss',        _id: '556a07f92d62dadc182fcc23' },      { upvotes: 1,        upvoteuser: [object],        comments: [],        __v: 1,        author: 'maryam pashmi',        body: 'z',        title: 'z',        _id: '556a13e62848566023f03e6d' },      556a07f92d62dadc182fcc23,      556a13e62848566023f03e6d ],   certificates: [],   createdon: thu may 28 2015 00:05:54 gmt+0200 (romance daylight time),   upvoteuser: [ 'maya beaty', 'maryam pashmi', 'juan y maryam' ],   upvotes: 3,   locations: [ 'Åland islands', 'albania' ],   services: [ 'saas' ] } put /api/providers/55663fc20e9009c82dccba94 500 10ms 

is there 1 know why getting error , issue have change in schema?

i don't have solution can try explain problem is, or @ least why isn't working in case. although there's couple of solutions @ end may or may not work..

your provider.posts array of set of documents referenced "posts", defined in provider schema.

posts: [{ type: mongoose.schema.types.objectid, ref: 'post' }] 

posts: [   {upvotes: 4, ... title: 'cczzs', _id: '5569f716a4c7bbd4219a3303' },    {upvotes: 4, ... title: 'juan', _id: '5569fb10c61b1af02fa1cc39' },    {upvotes: 4, ... _id: '5569fb15c61b1af02fa1cc3a' },    ...   {upvotes: 1, _id: '556a13e62848566023f03e6d' },    556a07f92d62dadc182fcc23,    556a13e62848566023f03e6d ], 

these supposed saved ids (556a07…), because that's how they're defined in schema

actually if towards end there elements ids (556a07f92d62da…), ones fetched database, , others _.merged req.body

the problem when saving, these objects being converted string "[object object]" reason. isn't supposed happen or @ least doesn't happen me. have mongoose@3.8 installed, check if maybe you're on older version.

just make sure root cause of problem, should

delete req.body.posts; var updated = _.merge(provider, req.body); // updates.posts should have 2 ids mentioned above updated.save(... 

and see if gets saved.

anyways going through older questions you'll find have had luck deleting , re-creating entire collection. advise it's bad idea store them objects in first place, in case can .map these objects , convert them native string id or objectid before saving.

updated.posts = updated.posts.map(function(post){return post._id}); updated.save(... 

hope helps out in way if doesn't solve it.