Class NumberTransform

public

The NumberTransform class is used to serialize and deserialize numeric attributes on Ember Data record objects. This transform is used when number is passed as the type parameter to the attr function.

Usage

app/models/score.js
import Model, { attr, belongsTo } from '@ember-data/model';

export default class ScoreModel extends Model {
  @attr('number') value;
  @belongsTo('player') player;
  @attr('date') date;
}

Show:

serialized

The serialized value

options

hash of options passed to attr

returns

The deserialized value

When given a serialized value from a JSON object this method must return the deserialized value for the record attribute.

Example

deserialize(serialized, options) {
  return empty(serialized) ? null : Number(serialized);
}
deserialized

The deserialized value

options

hash of options passed to attr

returns

The serialized value

When given a deserialized value from a record attribute this method must return the serialized value.

Example

import { isEmpty } from '@ember/utils';

serialize(deserialized, options) {
  return isEmpty(deserialized) ? null : Number(deserialized);
}