微信小程序二维码签到考勤系统

let drawQrcode = require("../utils/wxapp.qrcode.min.js");//引入wxapp.qrcode.min.js文件
createQRcode(canvasWidth, canvasHeight, canvasId, url) {
// 调用qrcode.js里的方法，传入对应参数
drawQrcode({
width: canvasWidth,
height: canvasHeight,
canvasId: canvasId,
text: url
})
console.log(drawQrcode.width)
},
setCanvasSize() {
let size = {};
// getSystemInfoSync 微信小程序提供getSystemInfoSync获取设备的信息
let res = wx.getSystemInfoSync();
// console.log(res);
// 获取比例
let scale = 686 / 750;
let width = res.windowWidth * scale;
let height = width;
size.w = width;
size.h = height;
return size;
},
formsubmit(e) {
let url = e.detail.value.url || this.data.placeholder;
// let url = e.detail.value.url ? e.detail.value.url : this.data.placeholder;
wx.showToast({
title: "生成中",
icon: "loading",
duration: 2000
})
let that_ = this;
let timer = setTimeout(() => {
let size = that_.setCanvasSize();
//调用createQRcode方法
that_.createQRcode(size.w, size.h, "mycanvars", url);
wx.hideToast();
clearTimeout(timer);
}, 2000)},
/**
* 生命周期函数--监听页面加载
*/
onLoad: function (options) {
//setCanvasSize 拿到画布区域的尺寸（微信小程序不支持dom的操作，所以单独定义方法去获取）
let size = this.setCanvasSize();
// console.log(size);
let url = this.data.placeholder;
//调用createQRcode方法
this.createQRcode(size.w, size.h, "mycanvars", url);
},

const DB = wx.cloud.database().collection("cows")
const TB = wx.cloud.database().collection("log")
let i = 0
let id=""
var util = require("../utils/util.js");

now(){
var that = this;
console.log(that.data.nows)
if (i == 0 && that.data.now =="签到"){
i=1;
var time1 = util.formatTime(new Date())
DB.add({
data: {
statctime:time1,
endtime: ""
},
success(res) {
id=res._id
console.log("签到成功", res._id)
},
fail(res) {
console.log("签到失败", res)
}
})
that.setData({
statc: time1,
now: "已签到",
color: "rgb(199, 194, 194)"
})
wx.showToast({
title: "签到成功"
})
var timeout= setTimeout(function(){
wx.switchTab({
url: "/pages/arrary/first/ones/ones",
})
},1000)
}
else{
wx.showToast({
title: "已签到，请勿重复签到",
icon: "none"
})
}
},
nows(){
var that = this;
if (i == 1 || that.data.now == "已签到" && that.data.nows == "签退"){
i=2;
var time2 = util.formatTime(new Date())
DB.doc(id).update({
data: {
endtime: time2
},
success(res) {
console.log("签退成功", res)
},
fail(res) {
console.log("签退失败", res)
}
})
that.setData({
ends: time2,
nows: "已签退",
colors: "rgb(199, 194, 194)"
})
wx.showToast({
title: "签退成功"
})
}
else
{
if(i==2){
wx.showToast({
title: "已签退，请勿重复签退",
icon: "none"
})
}
else{
wx.showToast({
title: "请先签到，签到之后方可签退！",
icon: "none"
})
}
}
},

var that = this
wx.cloud.callFunction({
name: "getopenid",
success(res) {
var openid = res.result.openid
DB.get({
success(e) {
console.log(e)
var lenths = e.data.length;
console.log(lenths);
var time1 = util.formatTime(new Date())
for (var i = 0; i < lenths; i++) {
if (e.data[i]._openid == openid && e.data[i].statctime.substring(0, 10) == time1.substring(0, 10)) {
var st = e.data[i].statctime
var en = e.data[i].endtime
that.setData({
statc: st,
now: "已签到",
color: "rgb(199, 194, 194)",
})
}
}
},
fail(e) {
console.log("查询失败", e)
}
})
console.log("获取成功", res.result.openid)
},
fail(res) {
console.log("获取成功", res)
}
})