twong329/view/xcx/pages/goods_list/goods_list.js

import { getProductslist, getProductHot } from '../../api/store.js'

const app = getApp()

Page({
  /**
   * 页面的初始数据
   */
  data: {
    productList: [],
    parameter: {
      navbar: '1',
      return: '1',
      title: '商品列表',
      color: true,
      class: '0'
    },
    navH: '',
    is_switch: true,
    where: {
      sid: 0,
      keyword: '',
      priceOrder: '',
      salesOrder: '',
      news: 0,
      page: 1,
      limit: 10,
      cid: 0
    },
    price: 0,
    stock: 0,
    nows: false,
    loadend: false,
    loading: false,
    loadTitle: '加载更多',
    userInfo: {}
  },

  onLoadFun: function (e) {
    this.setData({
      userInfo: e.detail
    })
  },

  /**
   * 生命周期函数--监听页面加载
   */
  onLoad: function (options) {
    this.setData({
      ['where.sid']: options.sid || 0,
      title: options.title || '',
      ['where.keyword']: options.searchValue || '',
      navH: app.globalData.navHeight
    })
    this.get_product_list()
    this.get_host_product()
  },

  /**
   * 商品详情跳转
   */
  goDetail: function (e) {
    let item = e.currentTarget.dataset.items
    if (item.activity && item.activity.type === '1') {
      wx.navigateTo({
        url: `/pages/activity/goods_seckill_details/index?id=${item.activity.id}&time=${item.activity.time}&status=1`
      })
    } else if (item.activity && item.activity.type === '2') {
      wx.navigateTo({
        url: `/pages/activity/goods_bargain_details/index?id=${item.activity.id}&bargain=${this.data.userInfo.uid}`
      })
    } else if (item.activity && item.activity.type === '3') {
      wx.navigateTo({
        url: `/pages/activity/goods_combination_details/index?id=${item.activity.id}`
      })
    } else {
      wx.navigateTo({
        url: `/pages/goods_details/index?id=${item.id}`
      })
    }
  },

  Changswitch: function () {
    var that = this
    that.setData({
      is_switch: !this.data.is_switch
    })
  },

  searchSubmit: function (e) {
    var that = this
    this.setData({
      ['where.keyword']: e.detail.value,
      loadend: false,
      ['where.page']: 1
    })
    this.get_product_list(true)
  },

  /**
   * 获取我的推荐
   */
  get_host_product: function () {
    var that = this
    getProductHot().then(res => {
      that.setData({
        host_product: res.data
      })
    })
  },

  //点击事件处理
  set_where: function (e) {
    var dataset = e.target.dataset
    switch (dataset.type) {
      case '1':
        return wx.navigateBack({
          delta: 1
        })
        break
      case '2':
        if (this.data.price == 0) this.data.price = 1
        else if (this.data.price == 1) this.data.price = 2
        else if (this.data.price == 2) this.data.price = 0
        this.setData({
          price: this.data.price,
          stock: 0
        })
        break
      case '3':
        if (this.data.stock == 0) this.data.stock = 1
        else if (this.data.stock == 1) this.data.stock = 2
        else if (this.data.stock == 2) this.data.stock = 0
        this.setData({
          stock: this.data.stock,
          price: 0
        })
        break
      case '4':
        this.setData({
          nows: !this.data.nows
        })
        break
    }
    this.setData({
      loadend: false,
      ['where.page']: 1
    })
    this.get_product_list(true)
  },

  //设置where条件
  setWhere: function () {
    if (this.data.price == 0) this.data.where.priceOrder = ''
    else if (this.data.price == 1) this.data.where.priceOrder = 'desc'
    else if (this.data.price == 2) this.data.where.priceOrder = 'asc'
    if (this.data.stock == 0) this.data.where.salesOrder = ''
    else if (this.data.stock == 1) this.data.where.salesOrder = 'desc'
    else if (this.data.stock == 2) this.data.where.salesOrder = 'asc'
    this.data.where.news = this.data.nows ? 1 : 0
    this.setData({
      where: this.data.where
    })
  },

  //查找产品
  get_product_list: function (isPage) {
    let that = this
    this.setWhere()
    if (that.data.loadend) return
    if (that.data.loading) return
    if (isPage === true)
      that.setData({
        productList: []
      })
    that.setData({
      loading: true,
      loadTitle: ''
    })
    getProductslist(that.data.where)
      .then(res => {
        let list = res.data
        let productList = app.SplitArray(list, that.data.productList)
        let loadend = list.length < that.data.where.limit
        that.setData({
          loadend: loadend,
          loading: false,
          loadTitle: loadend ? '已全部加载' : '加载更多',
          productList: productList,
          ['where.page']: that.data.where.page + 1
        })
      })
      .catch(err => {
        that.setData({
          loading: false,
          loadTitle: '加载更多'
        })
      })
  },

  /**
   * 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 () {
    this.setData({
      ['where.page']: 1,
      loadend: false,
      productList: []
    })
    this.get_product_list()
    wx.stopPullDownRefresh()
  },

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