wx-parent/pages/groupbuying/groupbuying.js

// import { models, db, _ } from '../../utils/cloudbase.js'
import { getDB, getModels, getCommand, getTempFileURLs } from '../../utils/cloudbase.js'
const app = getApp();
Page({
  data: {
    categoriesindex: 1,
    categories: [],
    goods: [],
    souimg: '',
    gouwucimg: '',
    pageNumber: 1,
    pageSize: 10,
    hasMore: true, // 是否还有更多数据
    isLoading: false, // 防止多次触发
    types_ids: null, // 当前选中的分类 tag_id
    searchText: '', // 搜索内容
  },

  onShow() {
    if (typeof this.getTabBar === 'function' && this.getTabBar()) {
      this.getTabBar().setSelected(1); // 比如首页就是 0
    }
    // 获取tab数据
    this.getTabdata();

  },

  async onLoad(options) {
    const fileIDs = [
      'cloud://honghgaier-5guiffgcf17a2eea.686f-honghgaier-5guiffgcf17a2eea-1373037829/images/icon/sou.png',
      'cloud://honghgaier-5guiffgcf17a2eea.686f-honghgaier-5guiffgcf17a2eea-1373037829/images/icon/gouwuc_img.png'
    ];

    const fileList = await getTempFileURLs(fileIDs)
    this.setData({
      souimg: fileList[0].tempFileURL,
      gouwucimg: fileList[1].tempFileURL
    })
    
    // // 并发下载多个 fileID
    // Promise.all(
    //   fileIDs.map(fileID => wx.cloud.downloadFile({ fileID }))
    // ).then(results => {
    //   // 每个 result 对应一个下载结果
    //   const tempFilePaths = results.map(r => r.tempFilePath);
    //   console.log('全部下载成功:', tempFilePaths);
    //   this.setData({
    //     souimg: tempFilePaths[0],
    //     gouwucimg: tempFilePaths[1]
    //   });
    // }).catch(err => {
    //   console.error('有文件下载失败:', err);
    // });
  },
  // tab数据
  async getTabdata() {
    const models = await getModels()
    const { data } = await models.tab.list({
      filter: {
        where: {
          position: 4, // 显示位置
        },
      },
      envType: "prod",
    });
    
    // 返回查询到的数据
    const sortedRecords = data.records.sort((a, b) => {
      return a.sort - b.sort; // 升序排列
    });
    this.setData({
      categories: sortedRecords,
      goods: [],
      pageNumber: 1,
      hasMore: true,
    }, () => {
      this.getDatalist()
    })
  },

  onReachBottom() {
    // 上拉触底事件的处理函数
    this.loadMore();
  },

  loadMore() {
    // 加载更多数据的逻辑
    console.log('加载更多');
    // this.getDatalist(this.data.types_ids, true);
    if (this.data.isLoading || !this.data.hasMore) return;
    this.setData({ isLoading: true });
    this.getDatalist(this.data.types_ids, true);
  },

   //模糊搜搜
   onSearchInput(e) {
    const searchText = e.detail.value.trim();
    this.setData({
      searchText,
      goods: [],
      pageNumber: 1,
      hasMore: true
    }, () => {
      this.getDatalist(this.data.types_ids);
    });
  },
  // 点击搜搜
  onSearchConfirm() {
    this.setData({
      goods: [],
      pageNumber: 1,
      hasMore: true
    }, () => {
      this.getDatalist(this.data.types_ids);
    });
  },

  // 列表数据
  async getDatalist(tag_id = null, isLoadMore = false) {
    const models = await getModels()
    const _ = await getCommand()
    const userInfo = wx.getStorageSync('userInfo');
    const { pageNumber, pageSize, searchText } = this.data;
  
    const where = {
      school_id: _.in(userInfo.school_id)
    };
  
    if (tag_id) {
      where.tag_id = tag_id;
    }
  
    if (searchText) {
      where.name = {
        $regex_ci: searchText
      };
    }
  
    const { data } = await models.wx_merchandise.list({
      filter: { where },
      pageSize,
      pageNumber,
      getCount: true,
      envType: "prod",
    });
  
    const collectList = data.records || [];
  
     // 循环查 groupbuy 表
    for (let item of collectList) {
      try {
        const res = await models.wx_groupbuy_groupbuy.list({
          filter: { where: { groupbuy_id: item._id } },
          envType: "prod",
        });
        item.specList = res.data.records || [];
      } catch (err) {
        console.error(`获取 groupbuy 失败，商品ID: ${item._id}`, err);
        item.specList = [];
      }
    }

    // 批量获取商品图片临时 URL
    const fileIDs = collectList.map(item => item.img).filter(f => f)
    let tempFiles = []
    if (fileIDs.length > 0) {
      tempFiles = await getTempFileURLs(fileIDs)
    }

    // 将临时 URL 替换原 img
    const goodsList = collectList.map((item, index) => ({
      ...item,
      img: tempFiles[index]?.tempFileURL || item.img
    }))

    this.setData({
      goods: isLoadMore ? this.data.goods.concat(goodsList) : goodsList,
      pageNumber: pageNumber + 1,
      hasMore: goodsList.length === pageSize,
      isLoading: false
    });
  },

  // 点击tab分类 async
  tabcategories(e) {
    const types = e.currentTarget.dataset.type;
    const tagId = types.sort === 1 ? null : types._id;
  
    this.setData({
      categoriesindex: types.sort,
      types_ids: tagId,
      goods: [],
      pageNumber: 1,
      hasMore: true
    }, () => {
      this.getDatalist(tagId, false); // ✅ 这里也改成直接传 tagId
    });
  },

  navigateToDetail(e) {
    const index = e.currentTarget.dataset.index;
    const item = this.data.goods[index];
    wx.navigateTo({
      url: '/subpackages/productdetails/productdetails?data=' + encodeURIComponent(JSON.stringify(item))
    });
  }
});