DS.Transform Class addon/transform.js:3
Defined in: addon/transform.js:3
Module: ember-data
The DS.Transform class is used to serialize and deserialize model
attributes when they are saved or loaded from an
adapter. Subclassing DS.Transform is useful for creating custom
attributes. All subclasses of DS.Transform must implement a
serialize and a deserialize method.
Example
| app/transforms/temperature.js | |
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import DS from 'ember-data'; // Converts centigrade in the JSON to fahrenheit in the app export default DS.Transform.extend({ deserialize: function(serialized) { return (serialized * 1.8) + 32; }, serialize: function(deserialized) { return (deserialized - 32) / 1.8; } }); |
Usage
| app/models/requirement.js | |
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import DS from 'ember-data'; export default DS.Model.extend({ name: DS.attr('string'), temperature: DS.attr('temperature') }); |
Show:
deserialize
(serialized)
When given a serialize value from a JSON object this method must return the deserialized value for the record attribute.
Example
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deserialize: function(serialized) { return empty(serialized) ? null : Number(serialized); } |
Parameters:
- serialized
- The serialized value
Returns:
- The deserialized value
serialize
(deserialized)
When given a deserialized value from a record attribute this method must return the serialized value.
Example
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serialize: function(deserialized) { return Ember.isEmpty(deserialized) ? null : Number(deserialized); } |
Parameters:
- deserialized
- The deserialized value
Returns:
- The serialized value