something is working

app/models/index.js

@@ -0,0 +1,13 @@
+const mongoose = require('mongoose');
+mongoose.Promise = global.Promise;
+
+const db = {};
+
+db.mongoose = mongoose;
+
+db.user = require("./user.model");
+db.role = require("./role.model");
+
+db.ROLES = ["user", "admin", "moderator"];
+
+module.exports = db;

app/models/role.model.js

@@ -0,0 +1,10 @@
+const mongoose = require("mongoose");
+
+const Role = mongoose.model(
+  "Role",
+  new mongoose.Schema({
+    name: String
+  })
+);
+
+module.exports = Role;

app/models/user.model.js

@@ -0,0 +1,18 @@
+const mongoose = require("mongoose");
+
+const User = mongoose.model(
+  "User",
+  new mongoose.Schema({
+    username: String,
+    email: String,
+    password: String,
+    roles: [
+      {
+        type: mongoose.Schema.Types.ObjectId,
+        ref: "Role"
+      }
+    ]
+  })
+);
+
+module.exports = User;