Day 88 免费课 课程列表页
1.分页功能
1.1后端代码: view.py
实现思路:导入分页器,定义分页类,默认分页参数,在视图里面定义 关键字 pagination_class
from rest_framework.pagination import PageNumberPagination
class StandardPageNumberPagination(PageNumberPagination):
page_size_query_param = 'page_size'
max_page_size = 10
page_size = 1
class CourseAPIView(ListAPIView):
queryset = Course.objects.filter(status=0).order_by("-orders","-students")
# 设置过滤的字段
filter_fields = ('course_category',)
serializer_class = CourseSerializer
filter_backends = [OrderingFilter]
ordering_fields = ('id', 'students', 'price', 'course_category')
pagination_class = StandardPageNumberPagination
1.2 前端courese.vue 代码
实现思路:
1)引入element ui 分页,默认初始化页面 axios 访问后端,拿到数据
<template> <div class="course"> <Header/> <div class="main"> <!-- 筛选功能 --> <div class="top"> .... <!-- 课程列表 ---> <div class="list"> 。。。。 </div>
/*********** 分页器 ***********/ <div class="pagination"> <!-- 必须设置page-size属性,total值的改变才会有效果 --> <el-pagination @current-change="handleCurrentChange" :current-page="query_params.current_page" background layout="prev, pager, next" :page-size="course_page_size" // 后端默认,前端可以重新定义 :total="course_count"> // 总数据数目数量 </el-pagination> </div>
/ ************** 分页器 **************/ </div> <Footer/> </div> </template> <script> import Header from "./common/Header" import Footer from "./common/Footer" export default { name: "Course", data(){ return { catetory_list:[], course_list:[], course_count: 0, course_page_size:1, query_params:{ course_category: 0, ordering:"-id", // 默认排序 current_page: 1, // 当前页 } } }, watch:{ // 每次点击不同课程时,要重新获取课程列表 "query_params.course_category":function(){ this.get_course_list(); // 当切换分类的时候,重置页码 this.query_params.current_page = 1; }, "query_params.ordering":function(){ // 当切换排序条件的时候,重置页码 // this.query_params.current_page = 1; this.get_course_list(); }, "query_params.current_page":function(){ this.get_course_list(); } }, components: {Header, Footer}, created(){ // 获取课程分类 this.$axios.get(this.$settings.Host+"/courses/cate/").then(response=>{ this.catetory_list = response.data }).catch(error=>{ console.log(error.response) }); // 获取课程信息 this.get_course_list() }, methods:{ select_ordering(selector){ // 默认排序 if(this.query_params.ordering==('-'+selector) ){ this.query_params.ordering = selector; }else{ this.query_params.ordering = '-'+selector; } }, get_course_list(){ let query_params = { ordering:this.query_params.ordering, page:this.query_params.current_page, }; if( this.query_params.course_category != 0 ){ query_params.course_category = this.query_params.course_category; } this.$axios.get(this.$settings.Host+"/courses/list/",{ params: query_params }).then(response=>{ // 课程列表 this.course_list = response.data.results; // 课程总数量 this.course_count = response.data.count; }).catch(error=>{ console.log(error.response) }); }, handleCurrentChange(page){ // 页码发生改变 this.query_params.current_page = page; } } } </script> <style scoped> ... .pagination{ text-align: center; margin: 20px 0px 50px 0px; } </style>
2.课程详情页
2.1CKEditor富文本编辑器
富文本即具备丰富样式格式的文本。在运营后台,运营人员需要录入课程的相关描述,可以是包含了HTML语法格式的字符串。为了快速简单的让用户能够在页面中编辑带html格式的文本,我们引入富文本编辑器。
富文本编辑器:ueditor、ckeditor、kindeditor
pip install django-ckeditor
在INSTALLED_APPS中添加
INSTALLED_APPS = [
...
'ckeditor', # 富文本编辑器
'ckeditor_uploader', # 富文本编辑器上传图片模块
...
]
3. 添加CKEditor设置
在settings/dev.py中添加
# 富文本编辑器ckeditor配置 CKEDITOR_CONFIGS = { 'default': { 'toolbar': 'full', # 工具条功能 'height': 300, # 编辑器高度 # 'width': 300, # 编辑器宽 }, } CKEDITOR_UPLOAD_PATH = '' # 上传图片保存路径,留空则调用django的文件上传功能
4. 添加ckeditor路由
在总路由中添加
path(r'^ckeditor/', include('ckeditor_uploader.urls')),
5. 为模型类添加字段
ckeditor提供了两种类型的Django模型类字段
-
ckeditor.fields.RichTextField
不支持上传文件的富文本字段 -
ckeditor_uploader.fields.RichTextUploadingField
支持上传文件的富文本字段\
修改course/models.py里面的字段信息,记得要重新数据迁移
from ckeditor_uploader.fields import RichTextUploadingField class Course(models.Model): """ 专题课程 """ ... brief = RichTextUploadingField(max_length=2048, verbose_name="课程概述", null=True, blank=True)
3.课程详情页显示
因为接下来的组件中使用了vue-video视频播放组件,所以我们需要先预安装。
3.1安装依赖
npm install vue-video-player --save
3.2 在main.js中注册加载组件
require('video.js/dist/video-js.css'); require('vue-video-player/src/custom-theme.css'); import VideoPlayer from 'vue-video-player' Vue.use(VideoPlayer);
3.3 Detail.vue组件代码:

<template> <div class="detail"> <Header/> <div class="main"> <div class="course-info"> <div class="wrap-left"> <video-player class="video-player vjs-custom-skin" ref="videoPlayer" :playsinline="true" :options="playerOptions" @play="onPlayerPlay($event)" @pause="onPlayerPause($event)" > </video-player> </div> <div class="wrap-right"> <h3 class="course-name">{{course.name}}</h3> <p class="data">{{course.students}}人在学 课程总时长:{{course.lessons}}课时/{{course.lessons==course.pub_lessons?'更新完成':('已更新'+course.pub_lessons+"课程")}} 难度:{{course.level}}</p> <div class="sale-time"> <p class="sale-type">限时免费</p> <p class="expire">距离结束:仅剩 01天 04小时 33分 <span class="second">08</span> 秒</p> </div> <p class="course-price"> <span>活动价</span> <span class="discount">¥0.00</span> <span class="original">¥{{course.price}}</span> </p> <div class="buy"> <div class="buy-btn"> <button class="buy-now">立即购买</button> <button class="free">免费试学</button> </div> <div class="add-cart"><img src="@/assets/cart-yellow.svg" alt="">加入购物车</div> </div> </div> </div> <div class="course-tab"> <ul class="tab-list"> <li :class="tabIndex==1?'active':''" @click="tabIndex=1">详情介绍</li> <li :class="tabIndex==2?'active':''" @click="tabIndex=2">课程章节 <span :class="tabIndex!=2?'free':''">(试学)</span></li> <li :class="tabIndex==3?'active':''" @click="tabIndex=3">用户评论 (42)</li> <li :class="tabIndex==4?'active':''" @click="tabIndex=4">常见问题</li> </ul> </div> <div class="course-content"> <div class="course-tab-list"> <div class="tab-item" v-if="tabIndex==1"> <div v-html="course.brief"></div> </div> <div class="tab-item" v-if="tabIndex==2"> <div class="tab-item-title"> <p class="chapter">课程章节</p> <p class="chapter-length">共{{chapter_list.length}}章 147个课时</p> </div> <div class="chapter-item" v-for="chapter in chapter_list"> <p class="chapter-title"><img src="@/assets/1.svg" alt="">第{{chapter.chapter}}章·{{chapter.name}}</p> <ul class="lesson-list"> <li class="lesson-item" v-for="lesson in chapter.coursesections"> <p class="name"><span class="index">{{chapter.chapter}}-{{lesson.id}}</span> {{lesson.name}}<span class="free" v-if="lesson.free_trail">免费</span></p> <p class="time">{{lesson.duration}} <img src="@/assets/chapter-player.svg"></p> <button class="try" v-if="lesson.free_trail">立即试学</button> <button class="try" v-else>立即购买</button> </li> </ul> </div> </div> <div class="tab-item" v-if="tabIndex==3"> 用户评论 </div> <div class="tab-item" v-if="tabIndex==4"> 常见问题 </div> </div> <div class="course-side"> <div class="teacher-info"> <h4 class="side-title"><span>授课老师</span></h4> <div class="teacher-content"> <div class="cont1"> <img :src="course.teacher.image"> <div class="name"> <p class="teacher-name">{{course.teacher.name}} {{course.teacher.title}}</p> <p class="teacher-title">{{course.teacher.signature}}</p> </div> </div> <p class="narrative" >Linux运维技术专家,老男孩Linux金牌讲师,讲课风趣幽默、深入浅出、声音洪亮到爆炸</p> </div> </div> </div> </div> </div> <Footer/> </div> </template> <script> import Header from "./common/Header" import Footer from "./common/Footer" import {videoPlayer} from 'vue-video-player'; export default { name: "Detail", data(){ return { tabIndex:1, // 当前选项卡显示的下标 course_id:0, // 当前页面对应的课程ID course: { teacher: {}, }, // 课程详情信息 chapter_list:{}, playerOptions: { playbackRates: [0.7, 1.0, 1.5, 2.0], // 播放速度 autoplay: false, //如果true,则自动播放 muted: false, // 默认情况下将会消除任何音频。 loop: false, // 循环播放 preload: 'auto', // 建议浏览器在<video>加载元素后是否应该开始下载视频数据。auto浏览器选择最佳行为,立即开始加载视频(如果浏览器支持) language: 'zh-CN', aspectRatio: '16:9', // 将播放器置于流畅模式,并在计算播放器的动态大小时使用该值。值应该代表一个比例 - 用冒号分隔的两个数字(例如"16:9"或"4:3") fluid: true, // 当true时,Video.js player将拥有流体大小。换句话说,它将按比例缩放以适应其容器。 sources: [{ // 播放资源和资源格式 type: "video/mp4", src: "http://img.ksbbs.com/asset/Mon_1703/05cacb4e02f9d9e.mp4" //你的视频地址(必填) }], poster: "../static/courses/675076.jpeg", //视频封面图 width: document.documentElement.clientWidth, // 默认视频全屏时的最大宽度 notSupportedMessage: '此视频暂无法播放,请稍后再试', //允许覆盖Video.js无法播放媒体源时显示的默认信息。 } } }, watch:{ course(data){ while(data.brief.search(`"/media`) != -1 ){ data.brief = data.brief.replace(`"/media`,`"${this.$settings.Host}/media`) } }, tabIndex(data){ if(data==2){ //获取当前课程对应的章节列表和课时列表 this.$axios.get(`${this.$settings.Host}/courses/chapters/?course=${this.course_id}`).then(response=>{ this.chapter_list = response.data; }).catch(error=>{ console.log(error.response) }) } } }, created(){ // 获取当前课程ID this.course_id = this.$route.query.id - 0; // 判断ID基本有效性 let _this = this; if( isNaN(this.course_id) || this.course_id < 1 ){ _this.$alert("无效的课程ID!","错误",{ callback(){ _this.$router.go(-1); }}); } // 发送请求获取后端课程数据 this.$axios.get(this.$settings.Host+`/courses/detail/${this.course_id}/`).then(response=>{ this.course = response.data; // 修改视频中的封面图片 this.playerOptions.poster = this.course.course_img; }).catch(error=>{ console.log(error.response) }); }, methods: { // 视频播放事件 onPlayerPlay(player) { alert("play"); }, // 视频暂停播放事件 onPlayerPause(player){ alert("pause"); }, // 视频插件初始化 player() { return this.$refs.videoPlayer.player; } }, components:{ Header, Footer, videoPlayer, } } </script> <style scoped> .main{ background: #fff; padding-top: 30px; } .course-info{ width: 1200px; margin: 0 auto; overflow: hidden; } .wrap-left{ float: left; width: 690px; height: 388px; background-color: #000; } .wrap-right{ float: left; position: relative; height: 388px; } .course-name{ font-size: 20px; color: #333; padding: 10px 23px; letter-spacing: .45px; } .data{ padding-left: 23px; padding-right: 23px; padding-bottom: 16px; font-size: 14px; color: #9b9b9b; } .sale-time{ width: 464px; background: #fa6240; font-size: 14px; color: #4a4a4a; padding: 10px 23px; overflow: hidden; } .sale-type { font-size: 16px; color: #fff; letter-spacing: .36px; float: left; } .sale-time .expire{ font-size: 14px; color: #fff; float: right; } .sale-time .expire .second{ width: 24px; display: inline-block; background: #fafafa; color: #5e5e5e; padding: 6px 0; text-align: center; } .course-price{ background: #fff; font-size: 14px; color: #4a4a4a; padding: 5px 23px; } .discount{ font-size: 26px; color: #fa6240; margin-left: 10px; display: inline-block; margin-bottom: -5px; } .original{ font-size: 14px; color: #9b9b9b; margin-left: 10px; text-decoration: line-through; } .buy{ width: 464px; padding: 0px 23px; position: absolute; left: 0; bottom: 20px; overflow: hidden; } .buy .buy-btn{ float: left; } .buy .buy-now{ width: 125px; height: 40px; border: 0; background: #ffc210; border-radius: 4px; color: #fff; cursor: pointer; margin-right: 15px; outline: none; } .buy .free{ width: 125px; height: 40px; border-radius: 4px; cursor: pointer; margin-right: 15px; background: #fff; color: #ffc210; border: 1px solid #ffc210; } .add-cart{ float: right; font-size: 14px; color: #ffc210; text-align: center; cursor: pointer; margin-top: 10px; } .add-cart img{ width: 20px; height: 18px; margin-right: 7px; vertical-align: middle; } .course-tab{ width: 100%; background: #fff; margin-bottom: 30px; box-shadow: 0 2px 4px 0 #f0f0f0; } .course-tab .tab-list{ width: 1200px; margin: auto; color: #4a4a4a; overflow: hidden; } .tab-list li{ float: left; margin-right: 15px; padding: 26px 20px 16px; font-size: 17px; cursor: pointer; } .tab-list .active{ color: #ffc210; border-bottom: 2px solid #ffc210; } .tab-list .free{ color: #fb7c55; } .course-content{ width: 1200px; margin: 0 auto; background: #FAFAFA; overflow: hidden; padding-bottom: 40px; } .course-tab-list{ width: 880px; height: auto; padding: 20px; background: #fff; float: left; box-sizing: border-box; overflow: hidden; position: relative; box-shadow: 0 2px 4px 0 #f0f0f0; } .tab-item{ width: 880px; background: #fff; padding-bottom: 20px; box-shadow: 0 2px 4px 0 #f0f0f0; } .tab-item-title{ justify-content: space-between; padding: 25px 20px 11px; border-radius: 4px; margin-bottom: 20px; border-bottom: 1px solid #333; border-bottom-color: rgba(51,51,51,.05); overflow: hidden; } .chapter{ font-size: 17px; color: #4a4a4a; float: left; } .chapter-length{ float: right; font-size: 14px; color: #9b9b9b; letter-spacing: .19px; } .chapter-title{ font-size: 16px; color: #4a4a4a; letter-spacing: .26px; padding: 12px; background: #eee; border-radius: 2px; display: -ms-flexbox; display: flex; -ms-flex-align: center; align-items: center; } .chapter-title img{ width: 18px; height: 18px; margin-right: 7px; vertical-align: middle; } .lesson-list{ padding:0 20px; } .lesson-list .lesson-item{ padding: 15px 20px 15px 36px; cursor: pointer; justify-content: space-between; position: relative; overflow: hidden; } .lesson-item .name{ font-size: 14px; color: #666; float: left; } .lesson-item .index{ margin-right: 5px; } .lesson-item .free{ font-size: 12px; color: #fff; letter-spacing: .19px; background: #ffc210; border-radius: 100px; padding: 1px 9px; margin-left: 10px; } .lesson-item .time{ font-size: 14px; color: #666; letter-spacing: .23px; opacity: 1; transition: all .15s ease-in-out; float: right; } .lesson-item .time img{ width: 18px; height: 18px; margin-left: 15px; vertical-align: text-bottom; } .lesson-item .try{ width: 86px; height: 28px; background: #ffc210; border-radius: 4px; font-size: 14px; color: #fff; position: absolute; right: 20px; top: 10px; opacity: 0; transition: all .2s ease-in-out; cursor: pointer; outline: none; border: none; } .lesson-item:hover{ background: #fcf7ef; box-shadow: 0 0 0 0 #f3f3f3; } .lesson-item:hover .name{ color: #333; } .lesson-item:hover .try{ opacity: 1; } .course-side{ width: 300px; height: auto; margin-left: 20px; float: right; } .teacher-info{ background: #fff; margin-bottom: 20px; box-shadow: 0 2px 4px 0 #f0f0f0; } .side-title{ font-weight: normal; font-size: 17px; color: #4a4a4a; padding: 18px 14px; border-bottom: 1px solid #333; border-bottom-color: rgba(51,51,51,.05); } .side-title span{ display: inline-block; border-left: 2px solid #ffc210; padding-left: 12px; } .teacher-content{ padding: 30px 20px; box-sizing: border-box; } .teacher-content .cont1{ margin-bottom: 12px; overflow: hidden; } .teacher-content .cont1 img{ width: 54px; height: 54px; margin-right: 12px; float: left; } .teacher-content .cont1 .name{ float: right; } .teacher-content .cont1 .teacher-name{ width: 188px; font-size: 16px; color: #4a4a4a; padding-bottom: 4px; } .teacher-content .cont1 .teacher-title{ width: 188px; font-size: 13px; color: #9b9b9b; white-space: nowrap; } .teacher-content .narrative{ font-size: 14px; color: #666; line-height: 24px; } </style>
3.4 注册路由
import CourseDetail from "../components/CourseDetail" ,{ name:"CourseDetail", path: "/detail", component: CourseDetail, }
3.5
<p class="box-title"><router-link :to="{path: '/detail',query:{id:course.id}}">{{course.name}}</router-link></p>
3.6 CourseDetail.vue:104行,接受来自课程列表的课程ID, 代码:
mounted(){ // 获取地址上面的课程ID let id = this.$route.query.id - 0; console.log(id); if( isNaN(id) || id < 1 ){ alert("非法请求!") this.$router.go(-1); } }
3.7 后端提供课程详情页数据接口
3.7.1 序列化器代码:(采用序列化器嵌套)
# 默认情况,序列化器转换模型数据时,默认会把外键直接转成主键ID值
# 所以我们需要重新设置在序列化器中针对外键的序列化
# 这种操作就是一个序列器里面调用另一个序列化器了.叫"序列化器嵌套"
class TeacherDetailModelSerializer(serializers.ModelSerializer): class Meta: model = Teacher fields = ("id","name","title","role","signature","image","brief") class CourseDetailModelSerializer(serializers.ModelSerializer): """课程详情页的序列化器""" teacher = TeacherDetailModelSerializer() class Meta: model = Course fields = ("id","name","course_img","students","lessons","pub_lessons","price","teacher","course_level","brief")
3.7.2 视图代码: 这里采用retrieveAPIView,获取单个
from rest_framework.generics import RetrieveAPIView from .serializers import CourseDetailModelSerializer class CourseDeitalAPIView(RetrieveAPIView): """课程详情信息""" queryset = Course.objects.filter(is_delete=False, is_show=True).order_by("orders") serializer_class = CourseDetailModelSerializer
3.7.3 路由代码
from django.urls import path, re_path from . import views urlpatterns = [ re_path(r"detail/(?P<pk>\d+)",views.CourseDetailAPIView.as_view()) ]

<template> <div class="detail"> <Header/> <div class="main"> <div class="course-info"> <div class="wrap-left"> <video-player class="video-player vjs-custom-skin" ref="videoPlayer" :playsinline="true" :options="playerOptions" @play="onPlayerPlay($event)" @pause="onPlayerPause($event)" > </video-player> </div> <div class="wrap-right"> <h3 class="course-name">{{course.name}}</h3> <p class="data">{{course.students}}人在学 课程总时长:{{course.lessons}}课时/{{course.lessons==course.pub_lessons?'更新完成':('已更新'+course.pub_lessons+"课程")}} 难度:{{course.course_level}}</p> <div class="sale-time"> <p class="sale-type">限时免费</p> <p class="expire">距离结束:仅剩 01天 04小时 33分 <span class="second">08</span> 秒</p> </div> <p class="course-price"> <span>活动价</span> <span class="discount">¥0.00</span> <span class="original">¥{{course.price}}</span> </p> <div class="buy"> <div class="buy-btn"> <button class="buy-now">立即购买</button> <button class="free">免费试学</button> </div> <div class="add-cart"><img src="@/assets/cart-yellow.svg" alt="">加入购物车</div> </div> </div> </div> <div class="course-tab"> <ul class="tab-list"> <li :class="tabIndex==1?'active':''" @click="tabIndex=1">详情介绍</li> <li :class="tabIndex==2?'active':''" @click="tabIndex=2">课程章节 <span :class="tabIndex!=2?'free':''">(试学)</span></li> <li :class="tabIndex==3?'active':''" @click="tabIndex=3">用户评论 (42)</li> <li :class="tabIndex==4?'active':''" @click="tabIndex=4">常见问题</li> </ul> </div> <div class="course-content"> <div class="course-tab-list"> <div class="tab-item" v-if="tabIndex==1"> <div v-html="course.brief"></div> </div> <div class="tab-item" v-if="tabIndex==2"> <div class="tab-item-title"> <p class="chapter">课程章节</p> <p class="chapter-length">共11章 147个课时</p> </div> <div class="chapter-item"> <p class="chapter-title"><img src="@/assets/1.svg" alt="">第1章·Linux硬件基础</p> <ul class="lesson-list"> <li class="lesson-item"> <p class="name"><span class="index">1-1</span> 课程介绍-学习流程<span class="free">免费</span></p> <p class="time">07:30 <img src="@/assets/chapter-player.svg"></p> <button class="try">立即试学</button> </li> <li class="lesson-item"> <p class="name"><span class="index">1-2</span> 服务器硬件-详解<span class="free">免费</span></p> <p class="time">07:30 <img src="@/assets/chapter-player.svg"></p> <button class="try">立即试学</button> </li> </ul> </div> <div class="chapter-item"> <p class="chapter-title"><img src="@/assets/1.svg" alt="">第2章·Linux发展过程</p> <ul class="lesson-list"> <li class="lesson-item"> <p class="name"><span class="index">2-1</span> 操作系统组成-Linux发展过程</p> <p class="time">07:30 <img src="@/assets/chapter-player.svg"></p> <button class="try">立即购买</button> </li> <li class="lesson-item"> <p class="name"><span class="index">2-2</span> 自由软件-GNU-GPL核心讲解</p> <p class="time">07:30 <img src="@/assets/chapter-player.svg"></p> <button class="try">立即购买</button> </li> </ul> </div> </div> <div class="tab-item" v-if="tabIndex==3"> 用户评论 </div> <div class="tab-item" v-if="tabIndex==4"> 常见问题 </div> </div> <div class="course-side"> <div class="teacher-info"> <h4 class="side-title"><span>授课老师</span></h4> <div class="teacher-content"> <div class="cont1"> <img :src="course.teacher.image"> <div class="name"> <p class="teacher-name">{{course.teacher.name}} {{course.teacher.title}}</p> <p class="teacher-title">{{course.teacher.signature}}</p> </div> </div> <p class="narrative" >Linux运维技术专家,老男孩Linux金牌讲师,讲课风趣幽默、深入浅出、声音洪亮到爆炸</p> </div> </div> </div> </div> </div> <Footer/> </div> </template> <script> import Header from "./common/Header" import Footer from "./common/Footer" import {videoPlayer} from 'vue-video-player'; export default { name: "Detail", data(){ return { tabIndex:1, // 当前选项卡显示的下标 course_id:0, // 当前页面对应的课程ID course: { teacher: {}, }, // 课程详情信息 playerOptions: { playbackRates: [0.7, 1.0, 1.5, 2.0], // 播放速度 autoplay: false, //如果true,则自动播放 muted: false, // 默认情况下将会消除任何音频。 loop: false, // 循环播放 preload: 'auto', // 建议浏览器在<video>加载元素后是否应该开始下载视频数据。auto浏览器选择最佳行为,立即开始加载视频(如果浏览器支持) language: 'zh-CN', aspectRatio: '16:9', // 将播放器置于流畅模式,并在计算播放器的动态大小时使用该值。值应该代表一个比例 - 用冒号分隔的两个数字(例如"16:9"或"4:3") fluid: true, // 当true时,Video.js player将拥有流体大小。换句话说,它将按比例缩放以适应其容器。 sources: [{ // 播放资源和资源格式 type: "video/mp4", src: "http://img.ksbbs.com/asset/Mon_1703/05cacb4e02f9d9e.mp4" //你的视频地址(必填) }], poster: "../static/courses/675076.jpeg", //视频封面图 width: document.documentElement.clientWidth, // 默认视频全屏时的最大宽度 notSupportedMessage: '此视频暂无法播放,请稍后再试', //允许覆盖Video.js无法播放媒体源时显示的默认信息。 } } }, watch:{ course(data){ while(data.brief.search(`"/media`) != -1 ){ data.brief = data.brief.replace(`"/media`,`"${this.$settings.Host}/media`) } }, tabIndex(){ if(tabIndex==2){ //获取当前课程对应的章节列表和课时列表 } } }, created(){ // 获取当前课程ID this.course_id = this.$route.query.id - 0; // 判断ID基本有效性 let _this = this; if( isNaN(this.course_id) || this.course_id < 1 ){ _this.$alert("无效的课程ID!","错误",{ callback(){ _this.$router.go(-1); }}); } // 发送请求获取后端课程数据 this.$axios.get(this.$settings.Host+`/courses/detail/${this.course_id}/`).then(response=>{ this.course = response.data; // 修改视频中的封面图片 this.playerOptions.poster = this.course.course_img; }).catch(error=>{ console.log(error.response) }); }, methods: { // 视频播放事件 onPlayerPlay(player) { alert("play"); }, // 视频暂停播放事件 onPlayerPause(player){ alert("pause"); }, // 视频插件初始化 player() { return this.$refs.videoPlayer.player; } }, components:{ Header, Footer, videoPlayer, } } </script>
3.9.1 courses/serializers.py,序列化器,代码:
from .models import CourseLesson class CourseLessonModelSerializer(serializers.ModelSerializer): """课程课时""" class Meta: model = CourseLesson fields = ["id","name","duration","free_trail"] from .models import CourseChapter class CourseChapterModelSerializer(serializers.ModelSerializer): """课程章节""" coursesections = CourseLessonModelSerializer(many=True) class Meta: model = CourseChapter fields = ("id","name","coursesections","chapter")
3.9.2 courses/views.py视图,代码:
from rest_framework.generics import ListAPIView from .serializers import CourseChapterModelSerializer from .models import CourseChapter class CourseChapterAPIView(ListAPIView): """课程章节信息""" queryset = CourseChapter.objects.filter(is_delete=False, is_show=True).order_by("orders") serializer_class = CourseChapterModelSerializer filter_backends = [DjangoFilterBackend] filter_fields = ['course']
3.9.3 courses/urls.py路由,代码:
re_path(r"^chapters/$",views.CourseChapterAPIView.as_view()),

前端请求章节信息展示到页面中