510_laomengkuang_wxsmall_shopper/pages/coupon/coupon.js

// pages/coupon/coupon.js
const app = getApp()
Page({

  /**
   * 页面的初始数据
   */
  data: {
    type: 2, //1券码核销 2手机号核销
    user_phone: '', //手机号
    state: 0, //0核销未完成 1核销中 2核销已完成
    headImgUrl:'',//头图
    totalNums: 1, //总数量
    nums: 1, //核销数量
    coupon_name: '', //优惠券名称
    couponTime: '', //优惠券购买时间
    code_num: '', //核销短信验证码
    couponCode: '', //券号
    duration: '', //券期间
    type_name:'',//券类型
  },
  /**
   * 核销数修改
   */
  changeNums(event) {
    this.setData({
      nums: parseInt(event.detail.value)
    })
  },
  /**
   * 验证码修改
   */
  changeCode(event) {
    this.setData({
      code_num: event.detail.value
    })
  },
  /**
   * 核销
   */
  writeOff: function() {
    if (this.data.state == 1) {
      return
    }
    if (this.data.nums>this.data.totalNums){
      wx.showToast({
        title: '券剩余数量不足',
        icon: 'none',
        duration: 2000
      })
      return
    }
    var data;
    if (this.data.type == 1) { //券核销
      data = {
        check_type: 1,
        coupon_code: this.data.couponCode,
        check_num: 1
      }
    } else { //手机号核销
      if (this.data.code_num.length != 6) {
        wx.showToast({
          title: '验证码错误',
          icon: 'none',
          duration: 2000
        })
        return
      }
      data = {
        check_type: 2,
        user_phone: this.data.user_phone,
        code_num: this.data.code_num,
        coupon_code: '',
        check_num: this.data.nums
      }
    }
    data.coupon_sell_id = app.globalData.couponData.coupon_sell_id;
    console.log(data);
    this.setData({
      state: 1
    })
    var that = this;
    app.requestPost('couponbuy/check', data, res => {
      var state;
      if (res.code == 200) {
        state = 2;
        if (that.data.type == 2) { //手机号核销
          this.setData({
            totalNums: this.data.totalNums-this.data.nums
          })
        }
      } else {
        state = 0;
        wx.showToast({
          title: res.message,
          icon: 'none',
          duration: 2000
        })
      }
      that.setData({
        state: state
      })
    })
  },
  /**
   * 添加优惠券
   */
  addCoupon() {
    if (isNaN(this.data.nums)) {
      this.setData({
        nums: 1
      })
    }else if (this.data.nums + 1 <= this.data.totalNums) {
      this.setData({
        nums: this.data.nums + 1
      })
    }
  },
  /**
   * 减少优惠券
   */
  reduceCoupon() {
    if (isNaN(this.data.nums)){
      this.setData({
        nums: 1
      })
    }else if (this.data.nums - 1 > 0) {
      this.setData({
        nums: this.data.nums - 1
      })
    }
  },
  blueNums(){
    if (isNaN(this.data.nums)) {
      this.setData({
        nums: 1
      })
    }
  },
  /**
   * 返回核销大厅
   */
  goHome() {
    wx.switchTab({
      url: '../home/home'
    })
  },

  /**
   * 生命周期函数--监听页面加载
   */
  onLoad: function(options) {
    wx.hideShareMenu();
    var code = options.code;
    var pohone = options.phone;
    var couponData = app.globalData.couponData;
    if (code) { //券码查询
      this.setData({
        type: 1,
        couponCode: code,
        coupon_name: couponData.coupon_name,
        type_name: couponData.type_name,
        couponTime: couponData.buy_date,
        duration: couponData.duration,
        headImgUrl: couponData.coupon_img_large
      })
    }
    if (pohone) { //手机号查询
      this.setData({
        type: 2,
        user_phone: pohone,
        totalNums: couponData.num,
        coupon_name: couponData.coupon_name,
        type_name: couponData.type_name,
        couponTime: couponData.buy_date,
        duration: couponData.duration,
        headImgUrl: couponData.coupon_img_large
      })
      /**
       * 发送验证码
       */
      app.requestGet('couponbuy/check/smscode', {
        user_phone: pohone
      }, res => {
        if (res.code == 200) {} else {
          wx.showToast({
            title: res.message,
            icon: 'none',
            duration: 2000
          })
        }
      })
    }
  },

  /**
   * 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() {

  }
})