ztb-mini/pages/article/factory/index.js

// pages/moment/paper/index.js
import { getAllFactoryList } from "../../api/ztb"
const util = require('../../../utils/util')
const storage = require('../../../utils/storage')
const event = require('../../../utils/event.js')
const app = getApp()

Page({
  /**
   * 页面的初始数据
   */
  data: {
    factoryList: [],
    recommendedList: null,
    recommendedString: null,
    type: 0,
    idString: null
  },
  /**
   * 生命周期函数--监听页面加载
   */
  onLoad: function (options) {
    if(options.type){
      this.data.type = Number(options.type)
    }
    wx.showLoading({ title: '加载中', mask: true })
    if(this.data.type == 0 && app.globalData.userInfo){
      this.data.recommendedString = storage.get('recommended' + app.globalData.userInfo.userId)
      if(!util.isEmpty(this.data.recommendedString)){
        this.data.recommendedList = JSON.parse(this.data.recommendedString)
      }
    }
    if(options.ids){
      this.data.idString = options.ids
    }
    getAllFactoryList().then(result => {
      //成功回调
      if(!util.isEmpty(this.data.recommendedString)){
        var that = this
        result.data.forEach(element => {
          if(!element.isRecommended && that.checkCategory(element.paperMillId)){
            element.checked = true
          }
        })
      }
      if(!util.isEmpty(this.data.idString)){
        var that = this
        result.data.forEach(element => {
          if(that.data.idString.indexOf(element.paperMillId) >= 0){
            element.checked = true
          }
        })
      }
      this.setData({ factoryList: result.data, type: this.data.type })
      wx.hideLoading()
    }).catch(err => {
      //异常回调
      wx.hideLoading()
    })
  },
  checkCategory: function(id){
    if(!this.data.recommendedList || !this.data.recommendedList.length){
      return false
    }
    for (let index = 0; index < this.data.recommendedList.length; index++) {
      if(id == this.data.recommendedList[index].paperMillId){
        return true
      }
    }
    return false
  },
  checkPaper: function(e) {
    var index = e.target.dataset.index
    var item = this.data.factoryList[index]
    if(this.data.type == 1){
      // 纸厂单选
      event.emit('EventMessage', { what: 555, obj: item, desc: 'PaperFactoryChoose' })
      wx.navigateBack({ delta: 1 })
      return
    } else if(this.data.type == 2){
      // 排队纸厂单选
      event.emit('EventMessage', { what: 556, obj: item, desc: 'PaperFactoryChoose' })
      wx.navigateBack({ delta: 1 })
      return
    } else if(this.data.type == 4){
      // 纸厂价格多选
      this.setData({ ['factoryList[' + index + '].checked']: !item.checked})
      return
    }
    if(item.isRecommended){
      return
    }
    if(item.checked){
      this.setData({ ['factoryList[' + index + '].checked']: !item.checked})
      return
    }
    var sum = 0
    for (let i = 0; i < this.data.factoryList.length; i++) {
      if(this.data.factoryList[i].checked || this.data.factoryList[i].isRecommended){
        sum++
      }
    }
    if(sum >= 8){
      util.showToast('最多只能关注8个纸厂')
      return
    }
    this.setData({ ['factoryList[' + index + '].checked']: !item.checked})
  },
  onUnload: function(){
    if(this.data.type == 0){
      var fString = ''
      var fList = []
      this.data.factoryList.forEach(element => {
        if(element.checked || element.isRecommended){
          fList.push({paperMillId: element.paperMillId, shortName: element.shortName, logoImg: element.logoImg})
        }
      })
      fString = JSON.stringify(fList)
      if(fList.length <= 4){
        return
      }
      if(fString != this.data.recommendedString && app.globalData.userInfo){
        storage.put('recommended' + app.globalData.userInfo.userId, fString)
        event.emit('EventMessage', { what: 505, desc: 'RecommendedChange' })
      }
    } else if(this.data.type == 4){
      var fIdString = ''
      this.data.factoryList.forEach(element => {
        if(element.checked){
          if(!util.isEmpty(fIdString)){
            fIdString += ',' + element.paperMillId
          } else {
            fIdString = element.paperMillId
          }
        }
      })
      if(!util.isEmpty(fIdString) && fIdString != this.data.idString){
        event.emit('EventMessage', { what: 508, obj: fIdString, desc: 'RecommendedChange' })
      }
    }
  },
  toFactory: function(event){
    util.navigateTo('/pages/agent/factory/index?id=' + event.currentTarget.dataset.fid)
  }
 
})