Add conversation mirage setup and remove un-needed mirage models (#1652)

* Add conversation mirage setup and remove un-needed mirage models

* fixup based on comments

Author: snewcomer

mirage/factories/conversation-part.js

@@ -0,0 +1,16 @@
+import { Factory, faker } from 'ember-cli-mirage';
+import moment from 'moment';
+
+export default Factory.extend({
+  body: faker.lorem.paragraph,
+
+  insertedAt(i) {
+    return moment().subtract(i, 'days');
+  },
+  readAt(i) {
+    return moment().subtract(i, 'days');
+  },
+  updatedAt(i) {
+    return moment().subtract(i, 'days');
+  }
+});

mirage/factories/conversation.js

@@ -1,4 +1,4 @@
-import { Factory } from 'ember-cli-mirage';
+import { Factory, trait } from 'ember-cli-mirage';
 import moment from 'moment';
 
 export default Factory.extend({
@@ -19,5 +19,11 @@ export default Factory.extend({
       conversation.message = server.create('message');
       conversation.save();
     }
-  }
+  },
+
+  withConversationParts: trait({
+    afterCreate(conversation, server) {
+      server.createList('conversation-part', 10, { conversation });
+    }
+  })
 });

mirage/scenarios/default.js

@@ -303,4 +303,6 @@ We can make regular, ongoing improvements with two full-time developers and one
 `,
     project
   });
+
+  server.createList('conversation', 3, 'withConversationParts');
 }