Class ObjectProxy
publicimport ObjectProxy from '@ember/object/proxy'; |
Ember.ObjectProxy
forwards all properties not defined by the proxy itself
to a proxied content
object.
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object = Ember.Object.create({ name: 'Foo' }); proxy = Ember.ObjectProxy.create({ content: object }); // Access and change existing properties proxy.get('name') // 'Foo' proxy.set('name', 'Bar'); object.get('name') // 'Bar' // Create new 'description' property on `object` proxy.set('description', 'Foo is a whizboo baz'); object.get('description') // 'Foo is a whizboo baz' |
While content
is unset, setting a property to be delegated will throw an
Error.
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proxy = Ember.ObjectProxy.create({ content: null, flag: null }); proxy.set('flag', true); proxy.get('flag'); // true proxy.get('foo'); // undefined proxy.set('foo', 'data'); // throws Error |
Delegated properties can be bound to and will change when content is updated.
Computed properties on the proxy itself can depend on delegated properties.
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ProxyWithComputedProperty = Ember.ObjectProxy.extend({ fullName: Ember.computed('firstName', 'lastName', function() { var firstName = this.get('firstName'), lastName = this.get('lastName'); if (firstName && lastName) { return firstName + ' ' + lastName; } return firstName || lastName; }) }); proxy = ProxyWithComputedProperty.create(); proxy.get('fullName'); // undefined proxy.set('content', { firstName: 'Tom', lastName: 'Dale' }); // triggers property change for fullName on proxy proxy.get('fullName'); // 'Tom Dale' |
Methods
- addObserver
- cacheFor
- decrementProperty
- destroy
- get
- getProperties
- getWithDefault
- incrementProperty
- init
- notifyPropertyChange
- removeObserver
- set
- setProperties
- toString
- toggleProperty
- willDestroy
Properties
Events
No documented items