study_wxapp/pages/train/orderTest/answer.js

let app = getApp()
const util = require("../../../utils/util")
Page({
  data: {
    preList:["A","B","C", "D", "E", "F"],
    info:{},
    total:0,
    unfinish:0,
    answerId:0,
    type:1,
    showResult: false,
    types:{
      1:'判断题',
      2:'单选题',
      3:'多选题',
      4:'案例题'
    },
    groupId:0
  },
  onLoad: function(options) {
    let groupId = +options.groupId||1;
    let type = +options.type||1;
    let total = +options.count ||0;
    this.setData({ groupId, type, total });
  },
  onChange(event){
    const showResult = event.detail.value;
    let {info} = this.data;
    if( showResult ) {
      info.select = info.result;
    }else{
      info.select = 0
    }
    this.setData({showResult, info})
  },
  onShow: function(){
    app.checkLogin( userInfo =>{
      this.setData({userInfo, from:0})
      this.loadAnswer()
    })
  },
  loadAnswer(  ){
    let {groupId, type, showResult} = this.data
    app.formPost('Exam.LoadAnswerLimit', {groupId, type}).then(res => {
      if (res.code ==200) {
        let {unfinish, info, total} = res.data
        let answerId = info&&info.answerId||0;
        if( showResult) info.select = info.result;
        this.setData({unfinish, total, info, answerId})
      }
    })
  },
  checkAnswer( e ){
    let item = this.data.item;
    if( !item.select ){
      app.message("还未作答", 'error')
      return;
    }
    let param = {answerId: item.answerId}
    // 多选
    if( item.type == mulSelect ){
      item.correct = item.select.join("") == item.result;
    }else{
      item.correct = item.select == item.result;
    }
    param.correct = item.correct?1:0
    // 打开下一题
    app.formPost('Exam.EditErrorAnswer', param).then(res => {
      this.setData({item, next:true})
    }) 
  },
  radioChange( e ){
    let info = this.data.info
    info.select = +e.detail.value
    this.setData( {info} );
  },
  checkboxChange( e ){
    let info = this.data.info
    info.select = +e.detail.value.sort().join("")
    let result = ""+info.result
    if (info.select == result ){
      info._select = true
    }else{
      for( let i in e.detail.value){
        if(result.indexOf( e.detail.value[i] )==-1 ){
          info._select = true
        }
      }
    }
    this.setData( {info} );
  },
  restartAnswer(){
    let {groupId,  type, total, showResult} = this.data
    let answerId=0
    let unfinish = total
    app.formPost('Exam.finishAnswerLimit', {groupId, answerId, type}).then(res => {
      if (res.code ==200) {
        let info = res.data
        let answerId = info.answerId
        if( showResult) info.select = info.result;
        this.setData({info, answerId, unfinish})
      }
    })
  },
  finishAnswer( e ){
    let action = e.currentTarget.dataset.action;
    let {groupId, unfinish, type, showResult, total} = this.data
    let correct = this.data.info.select == this.data.info.result?1:0;
    let answerId = total-unfinish;
    if( action == "prev"){
      if( total<=unfinish ) {
        util.showMsg("已经在第一题")
        return
      }
      answerId-=1
    }else{
      if( unfinish<1 ) {
        util.showMsg("已经最后一题")
        return;
      }
      answerId+=1 
    }
    console.log("finishAnswer", action, answerId, unfinish, total)
    app.formPost('Exam.finishAnswerLimit', {groupId, answerId, type, correct, action}).then(res => {
      if (res.code ==200) {
        let info = res.data
        let answerId = info.answerId
        unfinish = (action == "prev")?(unfinish+1):(unfinish-1);
        if( showResult) info.select = info.result;
        this.setData({info, answerId, unfinish})
      }
    })
  }
})