Nodejs使用coffeescript编写的用户注册/登陆代码(MySQL)

记录一下，以备后用

Settings = require '../../settings.js'

exports.register = (req, res) ->

  nick_name = req.body.nick_name
  email = req.body.email
  password = req.body.password

  # 配置变量
  table_name = 'user_info'
  database = Settings.mysql.database

  # 获取当前时间
  dateObj = new Date()

  year = dateObj.getFullYear()
  month = dateObj.getMonth() + 1
  day = dateObj.getDate()
  hour = dateObj.getHours()
  min = dateObj.getMinutes()
  sec = dateObj.getSeconds()

  console.log month.length
  date_str = year + '-' + month + '-' + day + ' ' + hour + ':' + min + ':' + sec
  #console.log date_str

  # 选择使用的数据库
  mysqldb.query('USE ' + database)

  # 判断邮箱，进行注册
  sql = "select * from " + table_name + " where email = '" + email + "'"
  console.log sql
  mysqldb.query(sql, (err, data) ->
    if (err)
      return res.jsonp({"status":-1, "message":"数据库出错"})
    else
      if (data.length > 0)
        return res.jsonp({"status":-2, "message":"邮箱已经存在"})
      else
        sql = "select * from " + table_name + " where nick_name = '" + nick_name + "'"
        mysqldb.query(sql, (err, data) ->
          if (data.length > 0)
            return res.jsonp({"status":-3, "message":"昵称已存在"})
          else
            mysqldb.query(
              'INSERT INTO ' + table_name + ' SET nick_name = ?, email = ?, ctime = ?, password = ?',
              [nick_name, email, date_str, password])
            return res.jsonp({"status":0, "message":"注册成功"})
        )
  )

exports.login = (req, res) ->

  email = req.body.email
  password = req.body.password

  # 配置变量
  table_name = 'user_info'
  database = Settings.mysql.database

  # 选择使用的数据库
  mysqldb.query('USE ' + database)

  # 判断邮箱，进行注册
  sql = "select * from " + table_name + " where email = '" + email + "'"
  console.log sql
  mysqldb.query(sql, (err, data) ->
    if (err)
      return res.jsonp({"status":-1, "message":"数据库出错"})
    else
      if (data.length == 0)
        return res.jsonp({"status":-2, "message":"用户不存在"})
      else
        if (data[0].password == password)
          return res.jsonp({"status":0, "message":"登陆成功"})
        else
          return res.jsonp({"status":-3, "message":"用户名或密码错误"})
  )