WIP expense items

app/models/expense.js

@@ -0,0 +1,43 @@
+import EmberObject, { computed } from '@ember/object';
+import moment from 'moment';
+import { A } from '@ember/array';
+
+export default EmberObject.extend({
+  title: null,
+  description: null,
+  currency: null,
+  amount: null,
+  date: null,
+  url: null,
+  tags: null,
+
+  init () {
+    this._super(...arguments);
+    this.setDefaultValues();
+  },
+
+  iso8601Date: computed('date', 'time', function() {
+    return this.time ? `${this.date}T${this.time}` : this.date;
+  }),
+
+  jsDate: computed('iso8601Date', function() {
+    return moment(this.iso8601Date).toDate();
+  }),
+
+  setDefaultValues () {
+    this.set('defaultDate', moment().startOf('hour').toDate());
+    this.setProperties({
+      title: '',
+      description: '',
+      currency: 'EUR',
+      amount: 0,
+      date: this.defaultDate,
+      url: null,
+      tags: A([])
+    });
+  },
+
+  serialize () {
+    return JSON.stringify(this);
+  }
+});