nodejs开发微信1——微信access-token和tickets的数据模型

 /* jshint -W079 */
 /* jshint -W020 */

 "use strict";
 //var _ = require("lodash");

 module.exports = function(utils, db) {

     // Model WeChatAccessTokenSchema
     var WeChatAccessTokenSchema = new db.Schema({
         appid:  {type: String, trim:true, required: true },
         access_token: {type: String, trim:true},
         expires_in: Number,
         at: {type: Number, default: parseInt(new Date().getTime() / 1000)},
         create_at: {type: Date, default: Date.now}
     }, db.schema_options);

     WeChatAccessTokenSchema.index({ appid: 1 });
     WeChatAccessTokenSchema.index({ access_token: 1 });

     global.WeChatAccessToken = db.mongoose.model('WeChatAccessToken', WeChatAccessTokenSchema);

     // Model WeChatTicketSchema
     var WeChatTicketSchema = new db.Schema({
         appid: {type: String, trim:true, required: true},
         ticket: {type: String, trim:true},
         noncestr: {type: String, trim:true},
         expires_in: Number,
         at: {type: Number, default: parseInt(new Date().getTime() / 1000)},
         create_at: {type: Date, default: Date.now}
     }, db.schema_options);

     WeChatTicketSchema.index({ appid: 1 });
     WeChatTicketSchema.index({ ticket: 1 });

     global.WeChatTicket = db.mongoose.model('WeChatTicket', WeChatTicketSchema);
 };

数据库中只保存这两条数据,每次请求都是更新，不会增加；

这是mvc模式中的m，数据模型，