daliangzao/pages/kind/index.js

// index.js
//获取应用实例
var app = getApp();
let host = app.globalData.servsers; // 请求的url
Page({
  data: {
    host:host,
    classifyNavList:[],
    classifyNavActiveId: 2981,
    goodsList:[],
    requestState:true, //默认为true,表示还有数据
    filterArray: [
      { name: '1', value: '0~499元', price: [0,499] },
      { name: '2', value: '500~999元', price: [500, 999]},
      { name: '3', value: '1000~1999元', price: [1000, 1999]},
      { name: '4', value: '2000元以上', price: [2000, "~"] },
    ],
    filterStatic:false,
    page: 1, //默认第一页
    channelId:null, //渠道id，登录后给，默认为null
    maxPrice:null, //最大价格
    minPrice:null, //最低价格
    limit:10, //分页大小
    priceSort: null, //价格排序 desc asc
    timeSort: null, //时间排序 desc asc

  },
  onLoad(){
    this.getNavList(this);
  },
  onShow(){

  },
  onReachBottom: function () {
    if (this.data.requestState) {
      this.setData({
        page: this.data.page + 1
      })
      this.getGoodsList(this)
    }
    console.log('到底了')
  },
  getNavList(that){
    wx.request({
      url: host + '/classifyapi/classifyTwoAll',
      method:'get',
      data:{
        classifyHigher:'3053',
      },
      success(res){
        console.log(res,"成功后的")
        that.setData({
          classifyNavList:res.data.rows,
          classifyNavActiveId: res.data.rows[0].id
        })
        that.getGoodsList(that)
      }
    })
  },
  classifyTap(e){
    console.log(e,"classifyTap")
    let item = e.currentTarget.dataset.item,that = this;
    that.setData({
      classifyNavActiveId:item.id,
      requestState: true, //数据初始化
      page: 1,//数据初始化
      goodsList: []//数据初始化
    })
    that.getGoodsList(that)
    
  },
  getGoodsList(that){
    let data = {
      classId: that.data.classifyNavActiveId,
      limit: that.data.limit,
      offset:that.data.page,
    }
    if(that.data.channelId){
      data.channelId = that.data.channelId
    }
    if (that.data.maxPrice) {
      data.maxPrice = that.data.maxPrice
    }
    if (that.data.minPrice) {
      data.minPrice = that.data.minPrice
    }
    if (that.data.priceSort) {
      data.priceSort = that.data.priceSort
    }
    if (that.data.timeSort) {
      data.timeSort = that.data.timeSort
    }
    wx.request({
      url: host +'/commodityapi/queryCommodityByClass',
      method:'get',
      data:data,
      success(res){
        let dataArray = that.data.goodsList;
        res.data.rows.forEach(el => {
          el.logo = el.commodity_logo.split(",")
        })
        dataArray.push(...res.data.rows)
        that.setData({
          goodsList: dataArray,
          requestState: res.data.rows.length > that.data.limit
        })
      }
    })
  },
  filterTap(){
    let that = this;
    that.setData({
      filterStatic: !that.data.filterStatic,
      page:1,
      goodsList:[],
      requestState:true,
    })
    that.getGoodsList(that)
  },
  timeSortTap(){
    let that = this;
    that.setData({
      timeSort: that.data.timeSort === null ? 'asc' : that.data.timeSort === 'asc' ? 'desc' : 'asc',
      page:1,
      goodsList: [],
      requestState: true,
    })
    that.getGoodsList(that)
  },
  priceSortTap() {
    let that = this;
    that.setData({
      priceSort: that.data.priceSort === null ? 'asc' : that.data.priceSort === 'asc' ? 'desc' : 'asc',
    })
  },
  blurPriceMin(e) {
    // event.detail = {value: value}
    let that = this;
    that.setData({
      minPrice: e.detail.value,
      page: 1,
      goodsList: [],
      requestState: true,
    })
    that.getGoodsList(that)
  },
  blurPriceMax(e) {
    let that = this;
    that.setData({
      maxPrice: e.detail.value,
      page: 1,
      goodsList: [],
      requestState: true,
    })
    that.getGoodsList(that)
  },
  close(){
    this.setData({
      filterStatic:false
    })
  },
  toGoodsDetail(e) { // 进入商品详情页
    let that = this, id = e.currentTarget.dataset.id;
    wx.navigateTo({
      url: '/pages/buy/buy?com_id=' + id,
    })
  },
  radioChange(e){ // radio切换
    console.log(e.detail.value)
    let that = this, price = e.detail.value.split(',');
      that.setData({
        minPrice: price[0],
        maxPrice: price[1] == '~' ? null : price[1] ,
        requestState: true, //数据初始化
        page: 1,//数据初始化
        goodsList: []//数据初始化
      })
    that.getGoodsList(that)
  },
  search(){
    wx.redirectTo({
      url: "/pages/search/search",
    })
  }

})