Class DS.BooleanTransform

Defined in: addon/transforms/boolean.js:4

Module: ember-data

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

Usage

app/models/user.js

import DS from 'ember-data';

export default DS.Model.extend({
  isAdmin: DS.attr('boolean'),
  name: DS.attr('string'),
  email: DS.attr('string')
});

By default the boolean transform only allows for values of true or false. You can opt into allowing null values for boolean attributes via DS.attr('boolean', { allowNull: true })

app/models/user.js

import DS from 'ember-data';

export default DS.Model.extend({
  email: DS.attr('string'),
  username: DS.attr('string'),
  wantsWeeklyEmail: DS.attr('boolean', { allowNull: true })
});

Methods

deserialize (serialized, options) :

Module: ember-data

Inherited from DS.Transform addon/transforms/transform.js:92

serialized: The serialized value
options: hash of options passed to DS.attr
returns: The deserialized value

When given a serialize 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);
}

serialize (deserialized, options) :

Module: ember-data

Inherited from DS.Transform addon/transforms/transform.js:71

deserialized: The deserialized value
options: hash of options passed to DS.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);
}