ssj_book/parents/pages/book_detail/book_detail.js

// parents/pages/book_detail/book_detail.js
import { routers, viewImage, sharePage, isFn, getGlobalVal } from '../../../utils/util.js'
import { BookDetailView, AddWishBooks, GetBorrowBookNum, ScanningBooks } from '../../../utils/api.js'
const { navigateTo, redirectTo, navigateBack } = routers()
const { globalData, hasLibraryService, hasVipService } = getApp()
const { baseImgUrl, borrowToastText, reservationsToastText, wishToastText, noBorrowToastText, qrcodeInvalidToastText } = globalData
Page({

  /**
   * 页面的初始数据
   */
  data: {
    baseImgUrl,
    borrowToastText, 
    reservationsToastText, 
    wishToastText,
    isAll: 0,
    isLoaded: 0,
    isShowModal: true
  },

  /**
   * 生命周期函数--监听页面加载
   */
  onLoad: function (options) {
    options.vipId = getGlobalVal('vipId', `vipId_${getGlobalVal('userId')}`) || ''
    options.libId = getGlobalVal('library').id || ''
    this.setData({ options })
    this.getData(res => {
      this.setData({ isLoaded: 1 })
    })
  },

  /**
   * 生命周期函数--监听页面初次渲染完成
   */
  onReady: function () {
    const obj = { navigateTo, redirectTo, navigateBack, viewImage }
    for (const i in obj) {
      this[i] = obj[i]
    }
  },

  /**
   * 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 () {
    if (isFn(sharePage)) return sharePage()
  },

  /**
   * 获取书籍详情
   */
  getData: function (cb) {
    const continuousFn = { fn: this.getData, param: { ...arguments } }
    const { bookInfoId } = this.data.options
    BookDetailView({ data: { bookInfoId }, continuousFn }).then(res => {
      this.setData({ ...res.data })
      cb && cb(res)
    }).catch(res => {
      cb && cb(res)
    })
  },

  /**
   * 收起展开全部
   */
  toggleAllConentCtl: function () {
    this.setData({ isAll: !this.data.isAll, isShowModal: 0 })
  },

  /**
   * 收起展开模态框
   */
  toggleModalCtl: function () {
    this.setData({ isShowModal: !this.data.isShowModal })
  },

  /**
   * 预约或者加入心愿单
   */
  submitCtl: function (e) {
    const continuousFn = { fn: this.submitCtl, param: { ...arguments } }
    const { type } = e.currentTarget.dataset
    const { canOper, options, isClick } = this.data
    const { isbn13, libId, vipId } = options
    if (canOper != 2) {
      wx.showToast({
        title: noBorrowToastText,
        icon: 'none'
      })
      return
    }
    if (!hasVipService()) {
      return
    }
    if (!hasLibraryService()) {
      return
    }
    if (type == 1) {
      this.setData({ isShowModal: true })
    }
    if (isClick) {
      return
    } else {
      this.setData({ isClick: true })
    }
    AddWishBooks({ data: { isbn13, libId, type, vipId }, continuousFn }).then(res => {
      wx.showToast({
        title: `${type == 3 ? '预约' : type == 2 ? '加入心愿单' : type == 1 ? '借阅' : ''}成功`
      })
      this.setData({ isShowModal: false, isClick: false })
      setTimeout(() => {
        navigateBack()
      }, 2000)
    }).catch(res => {
      this.setData({ isClick: false })
    })
  },

  /**
   * 调用微信扫一扫之前判断可借书多少本
   */
  scanCtl: function () {
    const continuousFn = { fn: this.scanCtl, param: { ...arguments } }
    const { vipId, library } = this.data.options
    const libId = library.id || ''
    if (!hasVipService() || !hasLibraryService()) return
    GetBorrowBookNum({ data: { vipId, libId }, continuousFn }).then(res => {
      const { totalBook, lentBook } = res.data
      wx.showToast({
        title: `您还可以借${totalBook}本书`,
        icon: 'none'
      })
      if (totalBook > 0) {
        this.scanFn()
      }
      this.setData({ ...res.data })
    })
  },

  /**
   * 调用微信扫一扫
   */
  scanFn: function () {
    wx.scanCode({
      success: res => {
        const url = res.result
        const detailsId = url.split('_')[1].split('.')[0]
        if (!detailsId) {
          wx.showToast({
            title: qrcodeInvalidToastText,
            icon: 'none'
          })
          return
        }
        this.scanningBooksFn(detailsId)
      }
    })
  },

  /**
   * 扫一扫借书
   */
  scanningBooksFn: function (detailsId) {
    const continuousFn = { fn: this.scanningBooksFn, param: { ...arguments } }
    const { vipId } = this.data.options
    ScanningBooks({ data: { detailsId, vipId }, continuousFn }).then(res => {
      navigateTo({ url: 'borrow', paras: { ...res.data } })
    }).catch(res => {
      wx.showToast({
        title: res.msg,
        icon: 'none'
      })
    })
  }
})