Adding a draft for models.

models/asset.js

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+'use strict';
+
+var mongoose = require('mongoose');
+var Schema = mongoose.Schema;
+
+var assetSchema = new Schema({
+  title: String,
+  created_at: { type: Date, default: Date.now },
+  updated_at: { type: Date, default: Date.now }
+});
+
+var Asset = mongoose.model('Asset', assetSchema);
+
+module.exports = Asset;

models/comments.js

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+'use strict';
+
+var mongoose = require('mongoose');
+var Schema = mongoose.Schema;
+var User = require('user');
+var Asset = require('asset');
+
+var commentSchema = new Schema({
+  content: {
+    type: String,
+    required: [true, 'The content is required.'],
+    minlenght: 50
+  },
+  asset: Asset,
+  author: User,
+  actions: {
+    flags: [User],
+    likes: [User]
+  },
+  status: {
+    type: String,
+    enum: ['accepted', 'rejected', 'untouched'],
+    default: 'untouched'
+  },
+  parent: Comment,
+  created_at: { type: Date, default: Date.now },
+  updated_at: { type: Date, default: Date.now }
+});
+
+var Comment = mongoose.model('Comment', commentSchema);
+
+module.exports = Comment;

models/user.js

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+'use strict';
+
+var mongoose = require('mongoose');
+var Schema = mongoose.Schema;
+
+var userSchema = new Schema({
+  name: String,
+  created_at: { type: Date, default: Date.now },
+  updated_at: { type: Date, default: Date.now }
+});
+
+var User = mongoose.model('User', userSchema);
+
+module.exports = User;