CODEWITHSUNDEEP
ember.js
robert
robert

Reputation: 3726

How to initialize Ember model id?

I have an EmberJS model, which is initialized from a JSON object. This JSON object used to contain an id variable, but now its name is changed. Is there a way to tell the model what to use as id from the JSON? There are functions which use the model's id variable, so the best way would be to set id to be a reference of one of the model's variable.

Upvotes: 1

Views: 764

Answers (1)

LocalPCGuy
LocalPCGuy

Reputation: 6116

You can create a serializer (ember generate serializer [name]) where the name matches your model, and set the primaryKey that should be used instead of the default id.

If your backend uses a key other than id you can use the serializer's primaryKey property to correctly transform the id property to id when serializing and deserializing data.

// app/serializers/modelName.js
import DS from 'ember-data';

export default DS.JSONAPISerializer.extend({
  primaryKey: '_id'
});

https://guides.emberjs.com/release/models/customizing-serializers/#toc_ids

Alternatively, you can use the serializer to copy a value TO the id property via the normalizeResponse method if you prefer to maintain the primaryKey as id:

import DS from 'ember-data';

export default DS.JSONAPISerializer.extend({
  normalizeResponse(store, primaryModelClass, payload, id, requestType) {
    payload.data.id = payload.data.newModelId;
    delete payload.data.newModelId;

    return this._super(...arguments);
  }
});

Upvotes: 2

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