text: /**
   *  @Author : ZacharyIcoderKong
   *  @Date : 2019/1/6
   **/
  
  var mongoose = require('mongoose'); //引入mongoose模块
  
  var db = require('../config/mongoose.js');
  
  var MessageSchema = mongoose.Schema({
      msg_id: String,            //消息id uuid
      timestamp: Number,        //发送(服务器)时间
      sendtime: Number,        //客户端发送时间
      from_user: String,       //发送人
      to_user: String,         //要发送的人
      chat_type: String,      //聊天的类型 chat(单聊)    groupChat (群聊)
      group_id: String,        //群聊 房间id (群聊时房间id)
      group_name: String,      //群聊 房间id (群聊时房间name)
      ext: String,            //扩展
      bodies: String          //内容 json 文本 存储
                              //类型1-->文本类型  { "type":"txt","msg":"hello from test2"}
                              //类型2-->图片类型  { "type":"img","imgUrl":"hello from test2","imageName","图片名称"  //消息内容}
  });
  var Message = mongoose.model('Message', MessageSchema);
  
  var save = function (message, callBack) {
      var msg_id = vfglobal.util.generateUUID();
      var timestamp = new Date().getTime();
      var bodies = JSON.stringify(message.bodies);
      var msg = new Message({
          msg_id: msg_id,
          timestamp: timestamp,
          sendtime: message.sendtime,
          from_user: message.from_user,
          to_user: message.to_user,
          chat_type: message.chat_type,
          group_id: message.group_id,
          group_name: message.group_name,
          ext: message.ext,
          bodies: bodies,
      });
      //保存
      msg.save(function (err) {
          if (err) {
              vfglobal.MyLog("保存聊天记录失败");
          } else {
              if (callBack) {
                  message.msg_id = msg_id;
                  message.timestamp = timestamp;
                  callBack(message);
              }
          }
      });
  }
  
  module.exports = {
      Message,
      save,
  };