This addon introduces a session pattern, to allow stateful services to service multiple consumers (often components).
An example could be a master/detail experience where the detail view is a component which allows editing of content. It would be unfortunate, if navigating would lose un-saved changes, it would also be unfortunate if the state between the edit components were to leak. Instead the service issuing our sessions allows safe and easy session state managements
- services: singletons which maintain and issue out sessions to consumers
- sessions: non-singletons, typically key'd to a model which provide ephemeral state.
// app/services/email-edit.js
import Session from 'service-sessions'
import Ember from 'ember';
export default Ember.Object.extend(Session, {
sessionName: 'emailEdit',
prepareSession: function(Factory, model) {
return Factory.create({
content: model
});
}
});// app/sessions/email-edit.js
import BufferedProxy from 'ember-buffered-proxy/proxy';
export default BufferedProxy.extend();learn more about buffered proxy: https://github.com/yapplabs/ember-buffered-proxy
import Ember from 'ember';
export default Ember.Component.extend({
tagName: 'form',
session: Ember.computed('email', function() {
return this.editEmailService.sessionFor(this.get('email'));
}).readOnly(),
actions: {
save: function() {
this.get('session').applyChanges();
this.sendAction('on-save', this.get('email'));
},
cancel: function() {
this.get('session').discardChanges();
this.sendAction('on-cancel', this.get('email'));
}
}
});<label>Subect: {{input value=session.subject}}</label><br>
<label>from: {{input value=session.from}}</label><br>
<label>body: {{textarea value=session.body}}</label><br>- `npm install --save ember-service-sessions'
ember server- Visit your app at http://localhost:4200.
ember testember test --server
ember build
For more information on using ember-cli, visit http://www.ember-cli.com/.
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