Add action model.

models/asset.js

@@ -1,41 +0,0 @@
-'use strict';
-
-const mongoose = require('../mongoose');
-const uuid = require('uuid');
-const Schema = mongoose.Schema;
-
-const AssetSchema = new Schema({
-  id: {
-    type: String,
-    default: uuid.v4,
-    unique: true
-  },
-  title: String,
-  created_at: { type: Date, default: Date.now },
-  updated_at: { type: Date, default: Date.now }
-},{
-  _id: false
-});
-
-/**
- * Finds an asset by the id.
- * @param {String} id  identifier of the asset (uuid)
-*/
-AssetSchema.methods.findById = function(id, done) {
-  Asset.findOne({
-    id : id
-  }, (err, asset) => {
-    if (err) {
-      return done(err);
-    }
-
-    if (!asset) {
-      return done(null, false);
-    }
-    return done(null, asset);
-  });
-};
-
-const Asset = mongoose.model('Asset', AssetSchema);
-
-module.exports = Asset;