OnlineTraining0622/pages/demandCourses/demandCourses.js

const app = require('../../utils/util.js');
Page({
  data: {
    lbArr: [],
    showNull: false
  },
  goIn(e) {
    var id = e.currentTarget.dataset.item.id
    wx.navigateTo({
      url: '../dbDetails/dbDetails?id=' + id
    })
  },
  getArr(sessionKey) {
    var _this = this;
    wx.request({
      url: app.globalData.publicUrl + '/wx/course/selectRecordBySessionKey',
      method: "post",
      data: {
        sessionKey: sessionKey
      },
      success: function (res) {
        _this.setData({
          lbArr: res.data.list
        })
        if (res.data.list.length == 0) {
          _this.setData({
            showNull: true
          })
        }
      }
    })
  },
  onLoad: function () {
    var sessionKey = "";
    var _this = this;
    wx.checkSession({
      success: () => {
        sessionKey = wx.getStorageSync('sessionKey');
        if (sessionKey == "") {
          wx.login({
            success(res) {
              console.log(res);
              var code = res.code
              wx.request({
                url: app.globalData.publicUrl2 + '/wx/user/wx7e7a46e129d6cd0f/login',
                method: "get",
                data: {
                  code
                },
                success: function (res) {
                  sessionKey = res.data.sessionKey;
                  wx.setStorageSync('sessionKey', res.data.sessionKey);
                  _this.getArr(sessionKey)
                }
              })
            }
          })
        } else {
          _this.getArr(sessionKey)
        }
      },
      fail() {
        console.log("我没有缓存并去登录请求")
        wx.login({
          success(res) {
            console.log(res);
            var code = res.code
            wx.request({
              url: app.globalData.publicUrl2 + '/wx/user/wx7e7a46e129d6cd0f/login',
              method: "get",
              data: {
                code
              },
              success: function (res) {
                sessionKey = res.data.sessionKey;
                wx.setStorageSync('sessionKey', res.data.sessionKey);
                _this.getArr(sessionKey)
              }
            })
          }
        })
      }
    })
  }
})