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317 lines
8.9 KiB
317 lines
8.9 KiB
// pages/classroom/classroom.js
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const AV = require("../../lib/av-live-query-weapp-min");
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const { jsonify } = require('../../utils/leancloudutils');
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const bind = require("../../lib/live-query-binding");
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const Message = require("../../model/message");
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const Grade = require("../../model/grade");
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const Presence = require("../../model/presence");
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const app = getApp();
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Page({
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students: [],
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presences: [],
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my_presence: null,
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data: {
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course: null,
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loading: true,
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students: [],
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select_stu_login:"",
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message_text: "",
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messages: [],
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show_conversation: true
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},
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enter_mark_detail({currentTarget:{dataset}}){
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wx.navigateTo({
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url: '../mark_detail/mark_detail?course_id='+this.course_id,
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})
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},
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pull_messages: function(){
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let query = new AV.Query("Message");
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query.equalTo("edu_course_id", this.course_id);
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const set_messages = this.set_messages.bind(this);
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return AV.Promise.all([query.find().then(set_messages), query.subscribe()]).then(([messages, subscription]) => {
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this.messageSubscription = subscription;
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if (this.messageUnbind) this.messageUnbind();
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this.messageUnbind = bind(subscription, messages, set_messages);
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}).catch(error => console.error(error.message));
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},
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set_messages: function(messages){
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console.log("set_messages");
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messages = messages.map(message=>{
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let sender_login = message.edu_account_login;
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let senders_ = this.students.filter(student=>student.login==sender_login)
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if(senders_.length==1){
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message.set("sender_name", senders_[0]["name"]);
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}
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return message;
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})
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console.log(jsonify({ messages }));
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this.setData(jsonify({messages}));
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return messages;
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},
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send_message:function(event){
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let {message_text} = this.data;
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if(message_text.trim()==""){return;}
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let message = new Message({
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text: message_text,
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edu_account_login: this.current_user.login,
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edu_course_id: this.course_id,
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sender_name: this.current_user.real_name||"未命名",
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});
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message.save().then(()=>{
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this.setData({message_text: ""});
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console.log("send_message")
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}).catch(console.error);
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},
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close_conversation: function(event){
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console.log("close conversation");
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console.log(event);
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this.setData({show_conversation: false});
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this.messageSubscription.unsubscribe();
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this.messageUnbind();
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},
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update_message:function({detail:{value}}){
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this.setData({message_text: value});
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},
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select_stu: function(event){
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let login = event.currentTarget.dataset.login;
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console.log(event);
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this.setData({select_stu_login: login});
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console.log(this.data.select_stu_login);
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},
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set_isasking: function(event){
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let login = event.currentTarget.dataset.login;
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let status = event.currentTarget.dataset.status;
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console.log("set_isasking");
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let asking_presence = this.presences.filter(presence=>presence.get("edu_account_login")==login)[0];
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console.log(asking_presence);
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asking_presence.isasking = status;
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wx.showLoading({
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title: '请稍候',
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});
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asking_presence.save().then(()=>{
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wx.hideLoading();
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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_mark: function(event){
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console.log("add_mark");
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let login = event.currentTarget.dataset.login;
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let mark = event.currentTarget.dataset.mark;
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console.log(this.presences);
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let presence = this.presences.filter(presence => presence.get("edu_account_login") == login)[0];
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if(presence==null){
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console.warn("没有学生Presence");
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presence = new Presence({
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edu_account_login: login,
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edu_course_id: this.course_id,
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present: false,
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mark: 0
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})
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}
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presence.increment("mark", mark);
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var grade = new Grade();
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console.log(grade);
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grade.edu_account_login = login;
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grade.edu_course_id = this.course_id;
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grade.mark = mark;
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presence.save().then(()=>{grade.save()}).then(()=>{
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wx.showToast({
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title: '操作成功',
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icon:"none"
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})
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}
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).catch(console.error);
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},
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pull_presence: function(){
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let query = new AV.Query("Presence");
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query.equalTo("edu_course_id", this.course_id);
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const set_presence = this.set_presence.bind(this);
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return AV.Promise.all([query.find().then(set_presence), query.subscribe()]).then(([presences, subscription])=>{
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this.presenceSubscription = subscription;
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if(this.presenceUnbind) this.presenceUnbind();
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console.log("show set_presence");
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console.log(presences);
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console.log(set_presence);
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this.presenceUnbind = bind(subscription, presences, set_presence);
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})
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},
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set_presence: function(presences){
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this.presences = presences;
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console.log("set_presence");
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console.log(presences);
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//console.log("Set_presence");
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//console.log(this);
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let students = this.students.concat().map(student=>{
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student["mark"]=0;
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student["isasking"]=0;
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student["present"]=false;
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return student;
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});//拷贝
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for(var presence of presences){
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let student_login = presence.get("edu_account_login");
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if(presence.edu_account_login==this.current_user.login){
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this.my_presence = presence;
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}
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for(var i=0;i<students.length;i++){
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if(students[i].login==student_login){
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students[i]["present"] = presence.present;
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students[i]["isasking"] = presence.isasking;
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students[i]["mark"] = presence.mark;
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break;
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}
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}
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}
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console.log(students);
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this.setData({students: students});
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return presences;
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},
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/**new api below: */
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pull_course: function(){
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return app.client.get_course_info({course_id: this.course_id})
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.then(res=>{
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this.setData({course: res.data});
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wx.setNavigationBarTitle({
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title: this.data.course.name
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})
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}).catch(console.error);
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},
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pull_students: function(){
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return app.client.get_course_students({course_id: this.course_id})
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.then(res=>{
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this.students = res.data.students;
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}).catch(console.error);
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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.course_id = options.id;
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this.current_user = app.client.current_user;
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wx.showLoading({
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title: '加载中',
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});
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this.pull_course();
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this.pull_students()
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.then(()=>{
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this.pull_presence()
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.then(() => {
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if (this.my_presence == null) {
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this.my_presence = new Presence({
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edu_account_login: this.current_user.login,
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edu_course_id: this.course_id,
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present: true
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});
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this.my_presence.save();
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}else{
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this.my_presence.enter();
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}
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})
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.then(() => {
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wx.hideLoading();
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this.setData({ loading: false });
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})
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.catch(error => {
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console.error(error);
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wx.hideLoading();
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wx.showToast({
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title: '加载失败，请刷新重试',
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icon: "none"
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})
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});
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});
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this.pull_messages();
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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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console.log("onReady");
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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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console.log("onShow");
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if(this.my_presence){
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console.log("enter class when onShow");
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this.my_presence.enter();
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}
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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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this.my_presence.leave();
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console.log("onHide");
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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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this.my_presence.leave();
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console.log("onUnload");
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this.presenceSubscription.unsubscribe();
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this.presenceUnbind();
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this.messageSubscription.unsubscribe();
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this.messageUnbind();
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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_course();
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this.pull_students()
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.then(()=>{
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this.pull_presence().then(() => {
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if (this.my_presence == null) {
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this.my_presence = new Presence({
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edu_account_login: this.current_user.login,
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edu_course_id: this.course_id,
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present: true
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});
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this.my_presence.save();
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} else {
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this.my_presence.enter();
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}
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}).then(()=>{
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this.setData({loading: false});
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}).catch(error => {
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console.error(error);
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wx.showToast({
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title: '加载失败，请刷新重试',
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icon: "none"
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})
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});
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});
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this.pull_messages();
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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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console.log("onShareAppMessage");
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}
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}); |