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July 2, 2018 17:44
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Save samselikoff/87cdf2db35ca8002cf38c4b7cf7df92d to your computer and use it in GitHub Desktop.
To use, say you have a `lesson` from a route's `model` hook. Then you could pass `lesson` into a `{{lesson-form}}`. The form could then `lesson.createDraft()` and pass that around to all the inputs. When the form calls `draft.save()`, upon completion the adapter layer rolls the successfully-persisted changes back into the original `lesson` model.
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// models/draft/lesson.js | |
export { default } from '../lesson'; |
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// app/adapters/drafts/base.js | |
import ApplicationAdapter from '../application'; | |
export default ApplicationAdapter.extend({ | |
pathForType(...args) { | |
let path = this._super(...args); | |
return path.replace('drafts/', ''); | |
}, | |
createRecord: function(store, type, snapshot) { | |
return this._super(store, type, snapshot) | |
.then((payload) => { | |
let modelName = type.modelName.replace('drafts/', ''); | |
store.pushPayload(modelName, payload); | |
}); | |
}, | |
updateRecord: function(store, type, snapshot) { | |
return this._super(store, type, snapshot) | |
.then(payload => { | |
let modelName = type.modelName.replace('drafts/', ''); | |
store.pushPayload(modelName, payload); | |
}); | |
}, | |
deleteRecord(store, type, snapshot) { | |
return this._super(store, type, snapshot) | |
.then(() => { | |
let modelName = type.modelName.replace('drafts/', ''); | |
let record = store.peekRecord(modelName, snapshot.id); | |
store.unloadRecord(record); | |
}); | |
} | |
}); |
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// app/adapters/drafts/lesson.js | |
import DraftBase from './base'; | |
export default DraftBase; |
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// models/lesson.js | |
import DS from 'ember-data'; | |
export default DS.Model.extend({ | |
createDraft() { | |
const id = this.get('id'); | |
const attrs = Ember.merge(this.serialize(), {id}); | |
this.get('store').pushPayload('drafts/lesson', {'drafts/lesson': attrs}); | |
return this.get('store').peekRecord('drafts/lesson', id); | |
}, | |
discardDraft(draft) { | |
this.get('store').unloadRecord(draft); | |
}, | |
discardDrafts() { | |
let lessonDraft = this.get('store').peekRecord('drafts/lesson', this.get('id')); | |
if (lessonDraft) { | |
this.get('store').unloadRecord(lessonDraft); | |
} | |
} | |
}); |
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