CODEWITHSUNDEEP
javascriptnode.jsobjectloopbackjsstrongloop
Vishnu
Vishnu

Reputation: 724

Save data into existing model instance in loopback

I have a model called ModelA which uses base class Model, not PersistedModel. ModelA contains an existing Model instance which contains the following document.

{
    "_id" : ObjectId("5cf34da5265db517d8e366d3"),
    "userId" : ObjectId("5cf34da5265db517d8e366d0"),
    "providers" : [ 
        "123456789", 
        "1598763690", 
        "1407850217", 
        "1720082597"
    ],
    "countByType" : {
        "doctors" : 3,
        "laboratories" : 0,
        "hospitals" : 0,
        "imagingCenters" : 0,
        "other" : 2
    }
}

The problem I am facing right now is how to save the data into existing model instance. 

 var modelInstance = new ModelA({userId: user.id, providers: ['111111111','222222222'], countByType: userProviderData.countByType});
           UserProvider.save({validate: false, throws: false },function(err, user) {
             if(err) {

               console.log('Errorsssssss ',err);
             } else {
               console.log(user);
             }
           });

Checked the below documentation, but this is creating new instance, instead of saving into existing Model.

https://apidocs.strongloop.com/loopback/v/1.5.1/#model-save-options-callback

Any help would be really appreciated.

Upvotes: 1

Views: 2502

Answers (1)

Farid Nouri Neshat
Farid Nouri Neshat

Reputation: 30430

You should either use something like updateAll:

ModelA.updateAll({_id: yourId}, data);

Or by using setId and then save:

var modelInstance = new ModelA(data);
modelInstance.setId(yourId);
modelInstance.save();

The reason why in your example it didn't update the data was that there was no id passed to the model constructor, you should either pass that or use setId.

Upvotes: 2

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