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ember-buffered-proxy

v2.1.1

Published

An Ember Object Proxy with change buffering

Downloads

60,774

Readme

ember-buffered-proxy

Build Status Ember Observer Score

An Ember Object Proxy (and mixin) that enables change buffering. Ever need to "hold back" property changes before they propagate? If so, this may be the addon for you.

Usage

ember install ember-buffered-proxy
import BufferedProxy from 'ember-buffered-proxy/proxy';

let content = {
  firstName: 'stefan'
};

let buffer = BufferedProxy.create({
  content: content
});

buffer.get('firstName'); // => 'stefan'
buffer.set('firstName', 'Kris');

buffer.get('firstName'); // => 'Kris'
buffer.get('content.firstName'); // => 'stefan'

buffer.get('hasChanges'); // => true
buffer.buffer; // => (get an object describing changed keys) -- {"firstName": "Kris"}

buffer.applyBufferedChanges();

buffer.get('firstName'); // => 'Kris'
buffer.get('content.firstName'); // => 'Kris'
buffer.get('hasChanges'); // => false

buffer.set('firstName', 'Luke');
buffer.get('firstName'); // => 'Luke'
buffer.get('content.firstName'); // => 'Kris'
buffer.hasChanged('firstName'); // => true

buffer.discardBufferedChanges();

buffer.get('firstName'); // => 'Kris'
buffer.get('content.firstName'); // => 'Kris'
buffer.hasChanged('firstName'); // => false

// Below demonstrates that applyBufferedChanges and discardBufferedChanges
// can take an optional array of keys.

buffer.set('email', '[email protected]');
buffer.get('email'); // => '[email protected]'
buffer.get('content.email'); // => undefined

buffer.set('address', '123 paradise road');
buffer.get('address'); // => '123 paradise road'
buffer.get('content.address'); // => undefined

buffer.applyBufferedChanges(['email']); // Only apply the email from the buffer

buffer.get('email'); // => '[email protected]'
buffer.get('address'); // => '123 paradise road'
buffer.get('content.email'); // => '[email protected]'
buffer.get('content.address'); // => undefined

buffer.setProperties({
  email: '[email protected]',
  address: '1717 rose street'
});

buffer.discardBufferedChanges(['address']); // Discard only the address property from the buffer

buffer.get('email'); // => [email protected]
buffer.get('address'); // => undefined

You can also use these shorter method names

buffer.discardChanges(); // equivalent to buffer.discardBufferedChanges()
buffer.applyChanges();   // equivalent to buffer.applyBufferedChanges()

Or you can grab the mixin directly

import BufferedMixin from 'ember-buffered-proxy/mixin';

let content = {
  firstName: 'stefan'
};

let buffer = ObjectProxy.extend(BufferedMixin).create({
  content: content
});

// same as above

Compatibility

| Version | Minimal Ember version required | | --- | --- | | > 2.1.0 | 3.13 | | > 1.0.1 | 3.8 | | 0.8.0 - 1.0.1 | 2.15 | | < 0.8 | 2.5 |

Contributing

See the Contributing guide for details.

License

This project is licensed under the MIT License.