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169 lines
3.9 KiB
169 lines
3.9 KiB
5 years ago
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// pages/addclass/addclass.js
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const AV = require("../../lib/av-live-query-weapp-min")
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const Presence = require("../../model/presence")
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const Class = require("../../model/class")
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const { jsonify } = require('../../utils/leancloudutils');
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Page({
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/**
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* 页面的初始数据
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*/
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classes: [],
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data: {
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new_classname:'',
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new_class_teacher_username: '',
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classes: []
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},
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updateName: function ({detail: {value}}){
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this.setData({new_classname:value});
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},
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create_class: function(event){
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const {new_classname} = this.data;
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class_ = new Class({
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name: new_classname,
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teacher: AV.User.current()
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})
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presence = new Presence({
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user: AV.User.current(),
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class: class_
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});
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wx.showLoading({
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title: '请稍候',
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})
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presence.save().then(()=>{
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wx.hideLoading();
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wx.showToast({
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title: '创建成功,可在首页课程列表以教师身份进入课堂',
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icon:"none",
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duration: 4000
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});
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this.setData({new_classname: ""});
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},
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()=>{
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wx.hideLoading();
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wx.showToast({
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title: '操作失败',
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icon: "none"
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});
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});
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},
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add_class:function(event){
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class_id = event.currentTarget.dataset.id;
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class_name = event.currentTarget.dataset.name;
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pull_presences = this.pull_presences.bind(this);
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wx.showModal({
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title: '确认',
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content: '是否加入学习'+class_name,
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success(res) {
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if (res.confirm) {
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class_ = AV.Object.createWithoutData("Class_", class_id);
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presence = new Presence({
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user: AV.User.current(),
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class: class_
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});
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wx.showLoading({
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title: '请稍候',
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})
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presence.save().then(()=>{
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pull_presences();
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wx.hideLoading();
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wx.showToast({
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title: '加入成功',
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icon: "success"
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})
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},
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() => {
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wx.hideLoading();
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wx.showToast({
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title: '加入失败',
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icon: "none"
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})
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}).catch(error=>console.error(error.message));
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}
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}
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})
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},
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pull_classes: function(){
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query = new AV.Query("Class_");
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return query.find().then(classes=>{console.log(classes);this.classes=classes});
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},
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pull_presences: function(){
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query = new AV.Query("Presence");
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query.equalTo("user", AV.User.current());
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query.include("class");
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query.find().then(this.set_presences.bind(this));
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},
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set_presences: function(presences){
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console.log("set_presences");
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console.log(presences);
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present_class_ids = presences.map(presence=>presence.get("class").id);
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classes =this.classes.map(class_=>{
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if(present_class_ids.indexOf(class_.id)>-1){
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class_.set("present", true);
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}else{
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class_.set("present", false);
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}
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return class_;
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});
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console.log(classes);
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this.setData(jsonify({classes}));
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},
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/**
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* 生命周期函数--监听页面加载
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*/
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onLoad: function (options) {
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this.pull_classes().then(this.pull_presences);
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this.setData({new_class_teacher_username: AV.User.current().get("username")});
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},
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/**
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* 生命周期函数--监听页面初次渲染完成
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*/
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onReady: function () {
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},
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/**
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* 生命周期函数--监听页面显示
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*/
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onShow: function () {
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},
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/**
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* 生命周期函数--监听页面隐藏
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*/
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onHide: function () {
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},
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/**
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* 生命周期函数--监听页面卸载
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*/
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onUnload: function () {
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},
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/**
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* 页面相关事件处理函数--监听用户下拉动作
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*/
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onPullDownRefresh: function () {
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this.pull_classes().then(this.pull_presences);
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},
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/**
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* 页面上拉触底事件的处理函数
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*/
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onReachBottom: function () {
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},
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/**
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* 用户点击右上角分享
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*/
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onShareAppMessage: function () {
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}
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})
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