feat(Messages): add adminMessages server model

modules/messages/server/models/admin-message.server.model.js

@@ -0,0 +1,42 @@
+'use strict';
+
+/**
+ * Module dependencies
+ */
+var mongoose = require('mongoose'),
+  Schema = mongoose.Schema;
+
+/**
+ * Message Schema
+ */
+var AdminMessageSchema = new Schema({
+  from_user: {
+    type: Schema.Types.ObjectId,
+    ref: 'User'
+  },
+  title: {
+    type: String,
+    default: '',
+    trim: true
+  },
+  content: {
+    type: String,
+    default: '',
+    trim: true
+  },
+  type: {
+    type: String,
+    default: 'user'
+  },
+  _readers: [{
+    type: Schema.Types.ObjectId,
+    ref: 'User'
+  }],
+  createdat: {
+    type: Date,
+    default: Date.now
+  }
+});
+
+
+mongoose.model('AdminMessage', AdminMessageSchema);