510_laomengkuang_wxsmall_customer/laomenkuang_project/pages/buyTicket/buyTicket.js

// pages/buyTicket/buyTicket.js

const app = getApp()
Page({

  /**
   * 页面的初始数据
   */
  data: {
    buyNumber:1,//购买数量
    num : 1,
    ticketUser: [],//优惠券信息
    orderUser:[],//下单信息
    sign_num:"",//确认支付参数
  },

  /**
   * 生命周期函数--监听页面加载
   */
  onLoad: function (options) {
    console.log(options)
    if (app.globalData.openId) {
      this.getTicketUser(options.index, 1)
    } else {
      app.globalData.openidSuccessFuc = this.getTicketUser;
    }
  },

  getTicketUser:function(index,from){//获取优惠券信息
    app.wxRequest(app.globalData.httpUrl + 'couponsell/detail', { coupon_sell_id: index, from: from}, e => {
      console.log(e)
      if (e.code == 200) {
        this.setData({
          ticketUser:e.data
        })
      }
    }, this)
  },
  /**
   * 生命周期函数--监听页面初次渲染完成
   */
  onReady: function () {

  },

  /**
   * 生命周期函数--监听页面显示
   */
  onShow: function () {

  },

  /**
   * 生命周期函数--监听页面隐藏
   */
  onHide: function () {

  },

  /**
   * 生命周期函数--监听页面卸载
   */
  onUnload: function () {

  },

  /**
   * 页面相关事件处理函数--监听用户下拉动作
   */
  onPullDownRefresh: function () {

  },

  /**
   * 页面上拉触底事件的处理函数
   */
  onReachBottom: function () {

  },

  /**
   * 用户点击右上角分享
   */
  onShareAppMessage: function () {

  },
  addFn:function(){
    // if (this.data.num<5){
      this.data.num++;
      this.setData({
        buyNumber: this.data.num
      })
    // }
  },
  subtractFn:function(){
    if (this.data.num > 1) {
      this.data.num--;
      this.setData({
        buyNumber: this.data.num
      })
    }
  },
  buySuccess:function(){//购买下单
    app.wxRequest(app.globalData.httpUrl + 'order/set', { coupon_sell_id: this.data.ticketUser.coupon_sell_id, buy_num: this.data.buyNumber}, e => {
      console.log(e)
      if (e.code == 200) {
        this.setData({
          orderUser: e.data.submit,
          sign_num: e.data.sign_num
        })
        wx.requestPayment({
          timeStamp: this.data.orderUser.timeStamp,
          nonceStr: this.data.orderUser.nonceStr,
          package: this.data.orderUser.package,
          signType: this.data.orderUser.signType,
          paySign: this.data.orderUser.paySign,
          success: res => {
            console.log(res)
            this.orderPay()
          },
        })
      }
    }, this,"POST")
  },
  orderPay:function(){
    app.wxRequest(app.globalData.httpUrl + 'order/paid', { sign_num: this.data.sign_num}, e => {
      console.log(e)
      if (e.code == 200) {
        wx.reLaunch({
          url: '/pages/personalCenter/personalCenter'
        })
      }
    }, this,"POST")
  },
  getInputVal:function(e){
    if (e.detail.value < 1) {
      wx.showToast({
        title: "购买量最小为1",
        duration: 1000
      })
      this.setData({
        buyNumber: 1,
        ticketNum: 1
      })
    } else {
      this.setData({
        buyNumber: e.detail.value,
        num: e.detail.value
      })
    }
    console.log(this.data.buyNumber)
  },
})