Django+xadmin打造在线教育平台（六）
目录
代码
教程
学习自慕课网-使用python3.x与Django2.0.1开发的在线教育平台
九、课程章节信息
9.1.模板和urls
拷贝course-comments.html 和 course-video.html放入 templates目录下
先改course-video.html，同样继承base.html，然后里面有属于自己的样式，也要保留
（1）配置url和视图
# 课程章节信息页 re_path('info/(?P<course_id>\d+)/', CourseInfoView.as_view(), name="course_info"),
class CourseInfoView(View): '''课程章节信息''' def get(self, request, course_id): course = Course.objects.get(id=int(course_id)) return render(request, "course-video.html", { "course": course, })
（2）配置相关的链接
首先修改course-vedio.html中custom_bread里面的链接
{% block custom_bread %} <section> <div class="wp"> <div class="crumbs"> <ul> <li><a href="index.html">首页</a>></li> <li><a href="{% url 'course:course_list' %}">公开课程</a>></li> <li><a href="{% url 'course:course_detail' course.id %}">课程详情</a>></li> <li>章节信息</li> </ul> </div> </div> </section> {% endblock %}
{% extends 'base.html' %} {% load staticfiles %} {% block title %}课程列表{% endblock %} {% block custom_bread %} <section> <div class="wp"> <div class="crumbs"> <ul> <li><a href="index.html">首页</a>></li> <li><a href="{% url 'course:course_list' %}">公开课程</a>></li> <li><a href="{% url 'course:course_detail' course.id %}">公开课程</a>></li> <li>课程详情</li> </ul> </div> </div> </section> {% endblock %} {% block css_learn %} <link rel="stylesheet" type="text/css" href="{% static 'css/muke/base.css' %}" /> <link rel="stylesheet" type="text/css" href="{% static 'css/muke/common-less.css' %}" /> <link rel="stylesheet" type="text/css" href="{% static 'css/muke/course/learn-less.css' %}" /> <link rel="stylesheet" type="text/css" href="{% static 'css/muke/course/common-less.css' %}"> <link rel="stylesheet" type="text/css" href="{% static 'css/mooc.css' %}" /> <link rel="stylesheet" type="text/css" href="{% static 'css/aui.css' %}" /> {% endblock %} {% block content %} <div id="main"> <div class="course-infos"> <div class="w pr"> <div style="height: 15px" class="path"> </div> <div class="hd"> <h2 class="l">django与vuejs实战项目2</h2> </div> <div class="statics clearfix"> <div class="static-item "> <span class="meta-value"><strong>高级</strong></span> <span class="meta">难度</span> <em></em> </div> <div class="static-item static-time"> <span class="meta-value">0分钟</span> <span class="meta">时长</span> <em></em> </div> <div class="static-item"> <span class="meta-value"><strong>13</strong></span> <span class="meta">学习人数</span> <em></em> </div> </div> </div> </div> <div class="course-info-main clearfix w has-progress"> <div class="info-bar clearfix"> <div class="content-wrap clearfix"> <div class="content"> <div class="mod-tab-menu"> <ul class="course-menu clearfix"> <li><a class="ui-tabs-active active" id="learnOn" href="course-video.html"><span>章节</span></a></li> <li><a id="commentOn" class="" href="course-comment.html"><span>评论</span></a></li> </ul> </div> <div id="notice" class="clearfix"> <div class="l"> <strong>课程公告:</strong> <a href="javascript:void(0)">Spring的文档以及相关的jar文件已上传</a> </div> </div> <div class="mod-chapters"> <div class="chapter chapter-active" > <h3> <strong><i class="state-expand"></i>第一章 基础知识</strong> </h3> <ul class="video"> <li> <a target="_blank" href='/video/3662' class="J-media-item studyvideo">1.1 hello world (0) <i class="study-state"></i> </a> </li> <li> <a target="_blank" href='/video/3662' class="J-media-item studyvideo">1.2 基本概念 (0) <i class="study-state"></i> </a> </li> <li> <a target="_blank" href='/video/3662' class="J-media-item studyvideo">django settings.py 配置 (0) <i class="study-state"></i> </a> </li> </ul> </div> <div class="chapter chapter-active" > <h3> <strong><i class="state-expand"></i>第二章 进阶开发</strong> </h3> <ul class="video"> <li> <a target="_blank" href='/video/3662' class="J-media-item studyvideo">2.1 test (0) <i class="study-state"></i> </a> </li> <li> <a target="_blank" href='/video/3662' class="J-media-item studyvideo">2.2 test2 (0) <i class="study-state"></i> </a> </li> </ul> </div> <div class="chapter chapter-active" > <h3> <strong><i class="state-expand"></i>第三章 需求分析和数据库设计</strong> </h3> <ul class="video"> <li> <a target="_blank" href='/video/3662' class="J-media-item studyvideo">3.1 django app设计 (0) <i class="study-state"></i> </a> </li> <li> <a target="_blank" href='/video/3662' class="J-media-item studyvideo">3.2 django model设计 (0) <i class="study-state"></i> </a> </li> <li> <a target="_blank" href='/video/3662' class="J-media-item studyvideo">3.3 django users models设计 (0) <i class="study-state"></i> </a> </li> <li> <a target="_blank" href='/video/3662' class="J-media-item studyvideo">3.4 django course models设计 (0) <i class="study-state"></i> </a> </li> <li> <a target="_blank" href='/video/3662' class="J-media-item studyvideo">3.5 organization models设计 (0) <i class="study-state"></i> </a> </li> </ul> </div> <div class="chapter chapter-active" > <h3> <strong><i class="state-expand"></i>第四章 django基础知识回顾</strong> </h3> <ul class="video"> <li> <a target="_blank" href='/video/3662' class="J-media-item studyvideo">4.1 django settings配置 (0) <i class="study-state"></i> </a> </li> <li> <a target="_blank" href='/video/3662' class="J-media-item studyvideo">4.2 models设计 (20) <i class="study-state"></i> </a> </li> </ul> </div> <div class="chapter chapter-active" > <h3> <strong><i class="state-expand"></i>第五章 通过xadmin搭建后台管理系统</strong> </h3> <ul class="video"> <li> <a target="_blank" href='/video/3662' class="J-media-item studyvideo">5.1 django admin讲解 (10) <i class="study-state"></i> </a> </li> <li> <a target="_blank" href='/video/3662' class="J-media-item studyvideo">5.2 xadmin的安装和注册 (0) <i class="study-state"></i> </a> </li> </ul> </div> </div> </div> <div class="aside r"> <div class="bd"> <div class="box mb40"> <h4>资料下载</h4> <ul class="downlist"> <li> <span ><i class="aui-iconfont aui-icon-file"></i> 前端页面</span> <a href="../media/course/resource/2016/11/media.zip" class="downcode" target="_blank" download="" data-id="274" title="">下载</a> </li> </ul> </div> <div class="box mb40"> <h4>讲师提示</h4> <div class="teacher-info"> <a href="/u/315464/courses?sort=publish" target="_blank"> <img src='../media/teacher/2016/11/aobama_CXWwMef.png' width='80' height='80' /> </a> <span class="tit"> <a href="/u/315464/courses?sort=publish" target="_blank">bobby</a> </span> <span class="job">xxx</span> </div> <div class="course-info-tip"> <dl class="first"> <dt>课程须知</dt> <dd class="autowrap">python基础你需要有</dd> </dl> <dl> <dt>老师告诉你能学到什么？</dt> <dd class="autowrap">django的进阶开发</dd> </dl> </div> </div> <div class="cp-other-learned js-comp-tabs"> <div class="cp-header clearfix"> <h2 class="cp-tit l">该课的同学还学过</h2> </div> <div class="cp-body"> <div class="cp-tab-pannel js-comp-tab-pannel" data-pannel="course" style="display: block"> <!-- img 200 x 112 --> <ul class="other-list"> <li class="curr"> <a href="course-detail.html" target="_blank"> <img src="../media/courses/2016/11/540e57300001d6d906000338-240-135_n0L8vbw.jpg" alt="django与vuejs实战项目2"> <span class="name autowrap">django与vuejs实战项目2</span> </a> </li> <li class="curr"> <a href="course-detail.html" target="_blank"> <img src="../media/courses/2016/12/python面向对象.jpg" alt="python面向对象"> <span class="name autowrap">python面向对象</span> </a> </li> <li class="curr"> <a href="course-detail.html" target="_blank"> <img src="../media/courses/2016/12/python文件处理.jpg" alt="python文件处理"> <span class="name autowrap">python文件处理</span> </a> </li> <li class="curr"> <a href="course-detail.html" target="_blank"> <img src="../media/courses/2016/11/mysql.jpg" alt="django入门"> <span class="name autowrap">django入门</span> </a> </li> <li class="curr"> <a href="course-detail.html" target="_blank"> <img src="../media/courses/2016/12/mysql.jpg" alt="xadmin进阶开发"> <span class="name autowrap">xadmin进阶开发</span> </a> </li> </ul> </div> <div class="cp-tab-pannel js-comp-tab-pannel" data-pannel="plan"> <ul class="other-list"> <li class="curr"> <a href="/course/programdetail/pid/31?src=sug" target="_blank"> <img src="http://img.mukewang.com/56551e6700018b0c09600720-240-135.jpg" alt="Java工程师"> <span class="name autowrap">Java工程师</span> </a> </li> </ul> </div> </div> </div> </div> </div> </div> <div class="clear"></div> </div> </div> </div> {% endblock %}
然后修改course-detetail.html中点“开始学习”的链接
<div class="btns"> <div class="btn colectgroupbtn" id="jsLeftBtn"> {% if has_fav_course %}已收藏{% else %}收藏{% endif %} </div> <div class="buy btn"><a style="color: white" href="{% url 'course:course_info' course.id %}">开始学习</a></div> </div>
9.2.章节和视频
（1）给Vedio Model添加一个url字段
url = models.CharField('访问地址',default='',max_length=200)
class Video(models.Model): lesson = models.ForeignKey(Lesson, verbose_name="章节",on_delete=models.CASCADE) name = models.CharField("视频名",max_length=100) url = models.CharField('访问地址',default='',max_length=200) add_time = models.DateTimeField("添加时间", default=datetime.now) class Meta: verbose_name = "视频" verbose_name_plural = verbose_name def __str__(self): return self.name
在xadmin后台添加课程章节和章节视频信息及链接
python-->>章节-->>视频
（2）给Course添加一个获取章节的方法
def get_course_lesson(self): #获取课程的章节 return self.lesson_set.all()
class Course(models.Model): '''课程''' DEGREE_CHOICES = ( ("cj", "初级"), ("zj", "中级"), ("gj", "高级") ) name = models.CharField("课程名",max_length=50) desc = models.CharField("课程描述",max_length=300) detail = models.TextField("课程详情") degree = models.CharField('难度',choices=DEGREE_CHOICES, max_length=2) learn_times = models.IntegerField("学习时长(分钟数)",default=0) students = models.IntegerField("学习人数",default=0) fav_nums = models.IntegerField("收藏人数",default=0) image = models.ImageField("封面图",upload_to="courses/%Y/%m",max_length=100) click_nums = models.IntegerField("点击数",default=0) tag = models.CharField('课程标签',default='',max_length=10) add_time = models.DateTimeField("添加时间",default=datetime.now,) course_org = models.ForeignKey(CourseOrg, on_delete=models.CASCADE, verbose_name="所属机构", null=True, blank=True) category = models.CharField("课程类别",max_length=20, default="") class Meta: verbose_name = "课程" verbose_name_plural = verbose_name def get_zj_nums(self): #获取课程的章节数 return self.lesson_set.all().count() def get_course_lesson(self): #获取课程的章节 return self.lesson_set.all() def get_learn_users(self): #获取这门课程的学习用户 return self.usercourse_set.all()[:5] def __str__(self): return self.name
（3）给Lesson添加一个获取所有视频的方法
def get_lesson_vedio(self): #获取章节所有视频 return self.video_set.all()
class Lesson(models.Model): '''课程章节''' course = models.ForeignKey(Course,verbose_name='课程',on_delete=models.CASCADE) name = models.CharField("章节名",max_length=100) add_time = models.DateTimeField("添加时间",default=datetime.now) class Meta: verbose_name = "章节" verbose_name_plural = verbose_name def get_lesson_vedio(self): #获取章节所有视频 return self.video_set.all() def __str__(self): return '《{0}》课程的章节 >> {1}'.format(self.course, self.name)
（4）给Vedio添加一个学习时长的字段
learn_times = models.IntegerField("学习时长(分钟数)",default=0)
class Video(models.Model): '''章节视频''' lesson = models.ForeignKey(Lesson, verbose_name="章节",on_delete=models.CASCADE) name = models.CharField("视频名",max_length=100) url = models.CharField('访问地址',default='',max_length=200) learn_times = models.IntegerField("学习时长(分钟数)", default=0) add_time = models.DateTimeField("添加时间", default=datetime.now) class Meta: verbose_name = "视频" verbose_name_plural = verbose_name def __str__(self): return self.name
课程章节和视频
<div class="mod-chapters"> {% for lesson in course.get_course_lesson %} <div class="chapter chapter-active" > <h3> <strong><i class="state-expand"></i>{{ lesson.name }}</strong> </h3> <ul class="video"> {% for vedio in lesson.get_lesson_vedio %} <li> <a target="_blank" href='{{ vedio.url }}' class="J-media-item studyvideo">{{ vedio.name }} ({{ vedio.learn_times }}) <i class="study-state"></i> </a> </li> {% endfor %} </ul> </div> {% endfor %} </div>
9.3.资料下载
（1）在后端添加资源文件
（2）view中把当前课程的课程资源传到前端
class CourseInfoView(View): def get(self,request,course_id): course = Course.objects.get(id=int(course_id)) all_resources = CourseResource.objects.filter(course=course) return render(request,'course-video.html',{'course':course,'all_resources':all_resources})
（3）前端页面显示
<div class="box mb40"> <h4>资料下载</h4> <ul class="downlist"> {% for course_resource in all_resources %} <li> <span ><i class="aui-iconfont aui-icon-file"></i> {{ course_resource.name }}</span> <a href="{{ MEDIA_URL }}{{ course_resource.download }}" class="downcode" target="_blank" download="" data-id="274" title="">下载</a> </li> {% endfor %} </ul> </div>
点下载可以下载我们在后端传上去的文件
把课程的信息也顺便改了
<div class="hd"> <h2 class="l">{{ course.name }}</h2> </div> <div class="statics clearfix"> <div class="static-item "> <span class="meta-value"><strong>{{ course.get_degree_display }}</strong></span> <span class="meta">难度</span> <em></em> </div> <div class="static-item static-time"> <span class="meta-value">{{ course.learn_times }}分钟</span> <span class="meta">时长</span> <em></em> </div> <div class="static-item"> <span class="meta-value"><strong>{{ course.students }}</strong></span> <span class="meta">学习人数</span> <em></em> </div> </div>
9.4.讲师提示
（1）给Course添加一个teacher外键
teacher = models.ForeignKey(Teacher,verbose_name='讲师',null=True,blank=True,on_delete=models.CASCADE)
class Course(models.Model): '''课程''' DEGREE_CHOICES = ( ("cj", "初级"), ("zj", "中级"), ("gj", "高级") ) name = models.CharField("课程名",max_length=50) desc = models.CharField("课程描述",max_length=300) detail = models.TextField("课程详情") degree = models.CharField('难度',choices=DEGREE_CHOICES, max_length=2) learn_times = models.IntegerField("学习时长(分钟数)",default=0) students = models.IntegerField("学习人数",default=0) fav_nums = models.IntegerField("收藏人数",default=0) image = models.ImageField("封面图",upload_to="courses/%Y/%m",max_length=100) click_nums = models.IntegerField("点击数",default=0) tag = models.CharField('课程标签',default='',max_length=10) add_time = models.DateTimeField("添加时间",default=datetime.now,) course_org = models.ForeignKey(CourseOrg, on_delete=models.CASCADE, verbose_name="所属机构", null=True, blank=True) category = models.CharField("课程类别",max_length=20, default="") teacher = models.ForeignKey(Teacher,verbose_name='讲师',null=True,blank=True,on_delete=models.CASCADE) class Meta: verbose_name = "课程" verbose_name_plural = verbose_name def get_zj_nums(self): #获取课程的章节数 return self.lesson_set.all().count() def get_course_lesson(self): #获取课程所有章节 return self.lesson_set.all() def get_learn_users(self): #获取这门课程的学习用户 return self.usercourse_set.all()[:5] def __str__(self): return self.name
在后台为课程添加一个讲师
（2）给Course再添加两个字段 “课程须知”和“老师告诉你能学到什么”
youneed_know = models.CharField('课程须知',max_length=300,default='') teacher_tell = models.CharField('老师告诉你',max_length=300,default='')
class Course(models.Model): '''课程''' DEGREE_CHOICES = ( ("cj", "初级"), ("zj", "中级"), ("gj", "高级") ) name = models.CharField("课程名",max_length=50) desc = models.CharField("课程描述",max_length=300) detail = models.TextField("课程详情") degree = models.CharField('难度',choices=DEGREE_CHOICES, max_length=2) learn_times = models.IntegerField("学习时长(分钟数)",default=0) students = models.IntegerField("学习人数",default=0) fav_nums = models.IntegerField("收藏人数",default=0) image = models.ImageField("封面图",upload_to="courses/%Y/%m",max_length=100) click_nums = models.IntegerField("点击数",default=0) tag = models.CharField('课程标签',default='',max_length=10) add_time = models.DateTimeField("添加时间",default=datetime.now,) course_org = models.ForeignKey(CourseOrg, on_delete=models.CASCADE, verbose_name="所属机构", null=True, blank=True) category = models.CharField("课程类别",max_length=20, default="") teacher = models.ForeignKey(Teacher,verbose_name='讲师',null=True,blank=True,on_delete=models.CASCADE) youneed_know = models.CharField('课程须知',max_length=300,default='') teacher_tell = models.CharField('老师告诉你',max_length=300,default='') class Meta: verbose_name = "课程" verbose_name_plural = verbose_name def get_zj_nums(self): #获取课程的章节数 return self.lesson_set.all().count() def get_course_lesson(self): #获取课程所有章节 return self.lesson_set.all() def get_learn_users(self): #获取这门课程的学习用户 return self.usercourse_set.all()[:5] def __str__(self): return self.name
（3）前端显示
<div class="box mb40"> <h4>讲师提示</h4> <div class="teacher-info"> <a href="/u/315464/courses?sort=publish" target="_blank"> <img src='{{ MEDIA_URL }}{{ course.teacher.image }}' width='80' height='80' /> </a> <span class="tit"> <a href="/u/315464/courses?sort=publish" target="_blank">{{ course.teacher.name }}</a> </span> <span class="job">{{ course.teacher.work_position }}</span> </div> <div class="course-info-tip"> <dl class="first"> <dt>课程须知</dt> <dd class="autowrap">{{ course.youneed_know }}</dd> </dl> <dl> <dt>老师告诉你能学到什么？</dt> <dd class="autowrap">{{ course.teacher_tell }}</dd> </dl> </div> </div>
9.5.课程评论
（1）course-comments.html照样继承base.html
{% extends 'base.html' %} {% load staticfiles %} {% block title %}公开课评论{% endblock %} {% block custom_bread %} <section> <div class="wp"> <div class="crumbs"> <ul> <li><a href="index.html">首页</a>></li> <li><a href="{% url 'course:course_list' %}">公开课程</a>></li> <li><a href="{% url 'course:course_detail' course.id %}">公开课程</a>></li> <li>课程评论</li> </ul> </div> </div> </section> {% endblock %} {% block custom_css %} <link rel="stylesheet" type="text/css" href="{% static 'css/muke/course/learn-less.css' %}" /> <link rel="stylesheet" type="text/css" href="{% static 'css/muke/course/course-comment.css' %}" /> <link rel="stylesheet" type="text/css" href="{% static 'css/muke/base.css' %}"> <link rel="stylesheet" type="text/css" href="{% static 'css/muke/common-less.css' %}"> <link rel="stylesheet" type="text/css" href="{% static 'css/muke/course/common-less.css' %}"> <link rel="stylesheet" type="text/css" href="{% static 'css/mooc.css' %}" /> {% endblock %} {% block content %} <div id="main"> <div class="course-infos"> <div class="w pr"> <div style="height: 15px" class="path"> </div> <div class="hd"> <h2 class="l">django与vuejs实战项目2</h2> </div> <div class="statics clearfix"> <div class="static-item "> <span class="meta-value"><strong>高级</strong></span> <span class="meta">难度</span> <em></em> </div> <div class="static-item static-time"> <span class="meta-value">0分钟</span> <span class="meta">时长</span> <em></em> </div> <div class="static-item"> <span class="meta-value"><strong>12</strong></span> <span class="meta">学习人数</span> <em></em> </div> </div> </div> </div> <div class="course-info-main clearfix w has-progress"> <div class="info-bar clearfix"> <div class="content-wrap clearfix"> <div class="content"> <div class="mod-tab-menu"> <ul class="course-menu clearfix"> <li><a class="ui-tabs-active " id="learnOn" href="course-video.html"><span>章节</span></a></li> <li><a id="commentOn" class="active" href="course-comment.html"><span>评论</span></a></li> </ul> </div> <!--发布评论--> <div id="js-pub-container" class="issques clearfix js-form"> <div class="wgt-ipt-wrap pub-editor-wrap " id="js-pl-input-fake"> <textarea id="js-pl-textarea" class="" placeholder="扯淡、吐槽、表扬、鼓励……想说啥就说啥！" ></textarea> </div> <input type="button" id="js-pl-submit" class="pub-btn" data-cid="452" value="发表评论"> <p class="global-errortip js-global-error"></p> </div> <div id="course_note"> <ul class="mod-post" id="comment-list"> <li class="post-row"> <div class="media"> <span target="_blank"><img src='../media/image/2016/12/default_big_14.png' width='40' height='40' /></span> </div> <div class="bd"> <div class="tit"> <span target="_blank">bobby</span> </div> <p class="cnt">看到第三章了，虽然有些知识还不是听得很懂，但是感觉很有用的样子，想的是先听完一遍再说。然后再来听第二遍。最后想说老师棒棒哒！！！</p> <div class="footer clearfix"> <span title="创建时间" class="l timeago">时间：2016年12月13日 22:14</span> </div> </div> </li> <li class="post-row"> <div class="media"> <span target="_blank"><img src='../media/image/2016/12/default_big_14.png' width='40' height='40' /></span> </div> <div class="bd"> <div class="tit"> <span target="_blank">bobby</span> </div> <p class="cnt">老师您讲的很好，很期待下次的课程。我有个小问题，jedi我用git clone 和 apt-get 都装上了，:help jedi-vim ,提示我E149: 抱歉，没有 jedi-vim 的说明，补全也不能用，有点搞不清楚了。我安装vim插件python-mode也不能用...</p> <div class="footer clearfix"> <span title="创建时间" class="l timeago">时间：2016年12月13日 22:13</span> </div> </div> </li> <li class="post-row"> <div class="media"> <span target="_blank"><img src='../media/image/2016/12/default_big_14.png' width='40' height='40' /></span> </div> <div class="bd"> <div class="tit"> <span target="_blank">bobby</span> </div> <p class="cnt">你好。我在看7.3节 关于使用上下文管理的那个例子。关于telnetlib库使用的一些问题。 Telnet.read_until(expected, timeout=None) ;使用这个方法容易卡在输入登陆用户名的位置就不执行了。假如telnet到目标主机，如果提示符不是login ，就无法登陆吗？</p> <div class="footer clearfix"> <span title="创建时间" class="l timeago">时间：2016年12月13日 22:13</span> </div> </div> </li> <li class="post-row"> <div class="media"> <span target="_blank"><img src='../media/image/2016/12/default_big_14.png' width='40' height='40' /></span> </div> <div class="bd"> <div class="tit"> <span target="_blank">bobby</span> </div> <p class="cnt">精品，老早就听医生的课了，这次的课程又让我长见识了，就像别的同学说的那样，如此简洁的实现酷炫动画的方式让我激动，赶快学完视频内容好去实现那10个任务，到时候希望徐大神好好指导指导我，如果学完后能给我个行业推荐啥的就更好了，明年就开始实习了！老紧张了--</p> <div class="footer clearfix"> <span title="创建时间" class="l timeago">时间：2016年12月13日 22:12</span> </div> </div> </li> <li class="post-row"> <div class="media"> <span target="_blank"><img src='../media/image/2016/12/default_big_14.png' width='40' height='40' /></span> </div> <div class="bd"> <div class="tit"> <span target="_blank">bobby</span> </div> <p class="cnt">测试一下</p> <div class="footer clearfix"> <span title="创建时间" class="l timeago">时间：2016年12月13日 22:11</span> </div> </div> </li> <li class="post-row"> <div class="media"> <span target="_blank"><img src='../media/image/2016/12/default_big_14.png' width='40' height='40' /></span> </div> <div class="bd"> <div class="tit"> <span target="_blank">bobby</span> </div> <p class="cnt">好</p> <div class="footer clearfix"> <span title="创建时间" class="l timeago">时间：2016年12月8日 22:07</span> </div> </div> </li> <li class="post-row"> <div class="media"> <span target="_blank"><img src='../media/image/2016/12/default_big_14.png' width='40' height='40' /></span> </div> <div class="bd"> <div class="tit"> <span target="_blank">bobby</span> </div> <p class="cnt">好</p> <div class="footer clearfix"> <span title="创建时间" class="l timeago">时间：2016年12月8日 22:07</span> </div> </div> </li> <li class="post-row"> <div class="media"> <span target="_blank"><img src='../media/image/2016/12/default_big_14.png' width='40' height='40' /></span> </div> <div class="bd"> <div class="tit"> <span target="_blank">bobby</span> </div> <p class="cnt">好</p> <div class="footer clearfix"> <span title="创建时间" class="l timeago">时间：2016年12月8日 22:06</span> </div> </div> </li> <li class="post-row"> <div class="media"> <span target="_blank"><img src='../media/image/2016/12/default_big_14.png' width='40' height='40' /></span> </div> <div class="bd"> <div class="tit"> <span target="_blank">bobby</span> </div> <p class="cnt">再来一次</p> <div class="footer clearfix"> <span title="创建时间" class="l timeago">时间：2016年11月5日 23:18</span> </div> </div> </li> <li class="post-row"> <div class="media"> <span target="_blank"><img src='../media/image/2016/12/default_big_14.png' width='40' height='40' /></span> </div> <div class="bd"> <div class="tit"> <span target="_blank">bobby</span> </div> <p class="cnt">good </p> <div class="footer clearfix"> <span title="创建时间" class="l timeago">时间：2016年11月5日 23:18</span> </div> </div> </li> <li class="post-row"> <div class="media"> <span target="_blank"><img src='../media/image/2016/12/default_big_14.png' width='40' height='40' /></span> </div> <div class="bd"> <div class="tit"> <span target="_blank">bobby</span> </div> <p class="cnt">讲的很不错</p> <div class="footer clearfix"> <span title="创建时间" class="l timeago">时间：2016年11月5日 23:13</span> </div> </div> </li> <li class="post-row"> <div class="media"> <span target="_blank"><img src='../media/image/2016/12/default_big_14.png' width='40' height='40' /></span> </div> <div class="bd"> <div class="tit"> <span target="_blank">bobby</span> </div> <p class="cnt">给问问</p> <div class="footer clearfix"> <span title="创建时间" class="l timeago">时间：2016年11月5日 23:09</span> </div> </div> </li> </ul> </div> </div> <div class="aside r"> <div class="bd"> <div class="box mb40"> <h4>资料下载</h4> <ul class="downlist"> <li> <span ><i class="aui-iconfont aui-icon-file"></i> 前端页面</span> <a href="../media/course/resource/2016/11/media.zip" class="downcode" target="_blank" download="" data-id="274" title="">下载</a> </li> </ul> </div> <div class="box mb40"> <h4>讲师提示</h4> <div class="teacher-info"> <a href="/u/315464/courses?sort=publish" target="_blank"> <img src='../media/teacher/2016/11/aobama_CXWwMef.png' width='80' height='80' /> </a> <span class="tit"> <a href="/u/315464/courses?sort=publish" target="_blank">bobby</a> </span> <span class="job">xxx</span> </div> <div class="course-info-tip"> <dl class="first"> <dt>课程须知</dt> <dd class="autowrap">python基础你需要有</dd> </dl> <dl> <dt>老师告诉你能学到什么？</dt> <dd class="autowrap">django的进阶开发</dd> </dl> </div> </div> <div class="cp-other-learned js-comp-tabs"> <div class="cp-header clearfix"> <h2 class="cp-tit l">该课的同学还学过</h2> </div> <div class="cp-body"> <div class="cp-tab-pannel js-comp-tab-pannel" data-pannel="course" style="display: block"> <!-- img 200 x 112 --> <ul class="other-list"> <li class="curr"> <a href="/view/85?src=sug" target="_blank"> <img src="http://img.mukewang.com/57035ff200014b8a06000338-240-135.jpg" alt="Java入门第一季"> <span class="name autowrap">Java入门第一季</span> </a> </li> <li> <a href="/view/110?src=sug" target="_blank"> <img src="http://img.mukewang.com/5703604a0001694406000338-240-135.jpg" alt="Java入门第三季"> <span class="name autowrap">Java入门第三季</span> </a> </li> <li> <a href="/view/124?src=sug" target="_blank"> <img src="http://img.mukewang.com/570360620001390f06000338-240-135.jpg" alt="Java入门第二季"> <span class="name autowrap">Java入门第二季</span> </a> </li> <li> <a href="/view/47?src=sug" target="_blank"> <img src="http://img.mukewang.com/570765d90001bf1406000338-240-135.jpg" alt="Spring MVC起步"> <span class="name autowrap">Spring MVC起步</span> </a> </li> <li> <a href="/view/36?src=sug" target="_blank"> <img src="http://img.mukewang.com/53e1d0470001ad1e06000338-240-135.jpg" alt="JavaScript入门篇"> <span class="name autowrap">JavaScript入门篇</span> </a> </li> </ul> </div> <div class="cp-tab-pannel js-comp-tab-pannel" data-pannel="plan"> <ul class="other-list"> <li class="curr"> <a href="/course/programdetail/pid/31?src=sug" target="_blank"> <img src="http://img.mukewang.com/56551e6700018b0c09600720-240-135.jpg" alt="Java工程师"> <span class="name autowrap">Java工程师</span> </a> </li> </ul> </div> </div> </div> </div> </div> </div> <div class="clear"></div> </div> </div> </div> {% endblock %}
（2）url和视图
#课程评论 re_path('comment/(?P<course_id>\d+)/', CommentsView.as_view(), name="course_comments"),
class CommentsView(View): '''课程评论''' def get(self, request, course_id): course = Course.objects.get(id=int(course_id)) all_resources = CourseResource.objects.filter(course=course) all_comments = CourseComments.objects.all() return render(request, "course-comment.html", { "course": course, "all_resources": all_resources, 'all_comments':all_comments, })
（3）添加链接
在course-vedio.html中修改 “章节”和“评论”的链接
<div class="mod-tab-menu"> <ul class="course-menu clearfix"> <li><a class="ui-tabs-active active" id="learnOn" href="{% url 'course:course_info' course.id %}"><span>章节</span></a></li> <li><a id="commentOn" class="" href="{% url 'course:course_comments' course.id %}"><span>评论</span></a></li> </ul> </div>
然后把评论页跟章节页的相同（‘课程’，‘资料下载’，‘讲师提示’）的地方直接果汁过来
（4）添加评论
添加评论的url和后台处理View
#添加评论 path('add_comment/', AddCommentsView.as_view(), name="add_comment"),
#添加评论 class AddCommentsView(View): '''用户评论''' def post(self, request): if not request.user.is_authenticated: # 未登录时返回json提示未登录，跳转到登录页面是在ajax中做的 return HttpResponse('{"status":"fail", "msg":"用户未登录"}', content_type='application/json') course_id = request.POST.get("course_id", 0) comments = request.POST.get("comments", "") if int(course_id) > 0 and comments: # 实例化一个course_comments对象 course_comments = CourseComments() # 获取评论的是哪门课程 course = Course.objects.get(id = int(course_id)) # 分别把评论的课程、评论的内容和评论的用户保存到数据库 course_comments.course = course course_comments.comments = comments course_comments.user = request.user course_comments.save() return HttpResponse('{"status":"success", "msg":"评论成功"}', content_type='application/json') else: return HttpResponse('{"status":"fail", "msg":"评论失败"}', content_type='application/json')
前端Ajax添加用户的评论
{% block custom_js %}
<script type="text/javascript">
//添加评论
$('#js-pl-submit').on('click', function(){
var comments = $("#js-pl-textarea").val()
if(comments == ""){
alert("评论不能为空")
return
}
$.ajax({
cache: false,
type: "POST",
url:"{% url 'course:add_comment' %}",
data:{'course_id':{{ course.id }}, 'comments':comments},
async: true,
beforeSend:function(xhr, settings){
xhr.setRequestHeader("X-CSRFToken", "{{ csrf_token }}");
},
success: function(data) {
if(data.status == 'fail'){
if(data.msg == '用户未登录'){
window.location.href="/login/";
}else{
alert(data.msg)
}
}else if(data.status == 'success'){
window.location.reload();//刷新当前页面.
}
},
});
});
</script>
{% endblock %}
显示评论的信息
<div id="course_note"> <ul class="mod-post" id="comment-list"> {% for user_comment in all_comments %} <li class="post-row"> <div class="media"> <span target="_blank"><img src='{{ MEDIA_URL }}{{ user_comment.user.image }}' width='40' height='40'/></span> </div> <div class="bd"> <div class="tit"> <span target="_blank">{{ user_comment.user.username }}</span> </div> <p class="cnt"> {{ user_comment.comments }} <div class="footer clearfix"> <span title="创建时间" class="l timeago">时间：{{ user_comment.add_time }}</span> </div> </div> </li> {% endfor %} </ul> </div>
{% extends 'base.html' %} {% load staticfiles %} {% block title %}公开课评论{% endblock %} {% block custom_bread %} <section> <div class="wp"> <div class="crumbs"> <ul> <li><a href="index.html">首页</a>></li> <li><a href="{% url 'course:course_list' %}">公开课程</a>></li> <li><a href="{% url 'course:course_detail' course.id %}">公开课程</a>></li> <li>课程评论</li> </ul> </div> </div> </section> {% endblock %} {% block custom_css %} <link rel="stylesheet" type="text/css" href="{% static 'css/muke/course/learn-less.css' %}"/> <link rel="stylesheet" type="text/css" href="{% static 'css/muke/course/course-comment.css' %}"/> <link rel="stylesheet" type="text/css" href="{% static 'css/muke/base.css' %}"> <link rel="stylesheet" type="text/css" href="{% static 'css/muke/common-less.css' %}"> <link rel="stylesheet" type="text/css" href="{% static 'css/muke/course/common-less.css' %}"> <link rel="stylesheet" type="text/css" href="{% static 'css/mooc.css' %}"/> {% endblock %} {% block content %} <div id="main"> <div class="course-infos"> <div class="w pr"> <div style="height: 15px" class="path"> </div> <div class="hd"> <h2 class="l">{{ course.name }}</h2> </div> <div class="statics clearfix"> <div class="static-item "> <span class="meta-value"><strong>{{ course.get_degree_display }}</strong></span> <span class="meta">难度</span> <em></em> </div> <div class="static-item static-time"> <span class="meta-value">{{ course.learn_times }}分钟</span> <span class="meta">时长</span> <em></em> </div> <div class="static-item"> <span class="meta-value"><strong>{{ course.students }}</strong></span> <span class="meta">学习人数</span> <em></em> </div> </div> </div> </div> <div class="course-info-main clearfix w has-progress"> <div class="info-bar clearfix"> <div class="content-wrap clearfix"> <div class="content"> <div class="mod-tab-menu"> <ul class="course-menu clearfix"> <li><a class="ui-tabs-active active" id="learnOn" href="{% url 'course:course_info' course.id %}"><span>章节</span></a></li> <li><a id="commentOn" class="" href="{% url 'course:course_comments' course.id %}"><span>评论</span></a></li> </ul> </div> <!--发布评论--> <div id="js-pub-container" class="issques clearfix js-form"> <div class="wgt-ipt-wrap pub-editor-wrap " id="js-pl-input-fake"> <textarea id="js-pl-textarea" class="" placeholder="来说点啥呗！！！"></textarea> </div> <input type="button" id="js-pl-submit" class="pub-btn" data-cid="452" value="发表评论"> <p class="global-errortip js-global-error"></p> </div> <div id="course_note"> <ul class="mod-post" id="comment-list"> {% for user_comment in all_comments %} <li class="post-row"> <div class="media"> <span target="_blank"><img src='{{ MEDIA_URL }}{{ user_comment.user.image }}' width='40' height='40'/></span> </div> <div class="bd"> <div class="tit"> <span target="_blank">{{ user_comment.user.username }}</span> </div> <p class="cnt"> {{ user_comment.comments }} <div class="footer clearfix"> <span title="创建时间" class="l timeago">时间：{{ user_comment.add_time }}</span> </div> </div> </li> {% endfor %} </ul> </div> </div> <div class="aside r"> <div class="bd"> <div class="box mb40"> <h4>资料下载</h4> <ul class="downlist"> {% for course_resource in all_resources %} <li> <span><i class="aui-iconfont aui-icon-file"></i> {{ course_resource.name }}</span> <a href="{{ MEDIA_URL }}{{ course_resource.download }}" class="downcode" target="_blank" download="" data-id="274" title="">下载</a> </li> {% endfor %} </ul> </div> <div class="box mb40"> <h4>讲师提示</h4> <div class="teacher-info"> <a href="/u/315464/courses?sort=publish" target="_blank"> <img src='{{ MEDIA_URL }}{{ course.teacher.image }}' width='80' height='80'/> </a> <span class="tit"> <a href="/u/315464/courses?sort=publish" target="_blank">{{ course.teacher.name }}</a> </span> <span class="job">{{ course.teacher.work_position }}</span> </div> <div class="course-info-tip"> <dl class="first"> <dt>课程须知</dt> <dd class="autowrap">{{ course.youneed_know }}</dd> </dl> <dl> <dt>老师告诉你能学到什么？</dt> <dd class="autowrap">{{ course.teacher_tell }}</dd> </dl> </div> </div> <div class="cp-other-learned js-comp-tabs"> <div class="cp-header clearfix"> <h2 class="cp-tit l">该课的同学还学过</h2> </div> <div class="cp-body"> <div class="cp-tab-pannel js-comp-tab-pannel" data-pannel="course" style="display: block"> <!-- img 200 x 112 --> <ul class="other-list"> <li class="curr"> <a href="/view/85?src=sug" target="_blank"> <img src="http://img.mukewang.com/57035ff200014b8a06000338-240-135.jpg" alt="Java入门第一季"> <span class="name autowrap">Java入门第一季</span> </a> </li> <li> <a href="/view/110?src=sug" target="_blank"> <img src="http://img.mukewang.com/5703604a0001694406000338-240-135.jpg" alt="Java入门第三季"> <span class="name autowrap">Java入门第三季</span> </a> </li> <li> <a href="/view/124?src=sug" target="_blank"> <img src="http://img.mukewang.com/570360620001390f06000338-240-135.jpg" alt="Java入门第二季"> <span class="name autowrap">Java入门第二季</span> </a> </li> <li> <a href="/view/47?src=sug" target="_blank"> <img src="http://img.mukewang.com/570765d90001bf1406000338-240-135.jpg" alt="Spring MVC起步"> <span class="name autowrap">Spring MVC起步</span> </a> </li> <li> <a href="/view/36?src=sug" target="_blank"> <img src="http://img.mukewang.com/53e1d0470001ad1e06000338-240-135.jpg" alt="JavaScript入门篇"> <span class="name autowrap">JavaScript入门篇</span> </a> </li> </ul> </div> <div class="cp-tab-pannel js-comp-tab-pannel" data-pannel="plan"> <ul class="other-list"> <li class="curr"> <a href="/course/programdetail/pid/31?src=sug" target="_blank"> <img src="http://img.mukewang.com/56551e6700018b0c09600720-240-135.jpg" alt="Java工程师"> <span class="name autowrap">Java工程师</span> </a> </li> </ul> </div> </div> </div> </div> </div> </div> <div class="clear"></div> </div> </div> </div> {% endblock %} {% block custom_js %} <script type="text/javascript"> //添加评论 $('#js-pl-submit').on('click', function(){ var comments = $("#js-pl-textarea").val() if(comments == ""){ alert("评论不能为空") return } $.ajax({ cache: false, type: "POST", url:"{% url 'course:add_comment' %}", data:{'course_id':{{ course.id }}, 'comments':comments}, async: true, beforeSend:function(xhr, settings){ xhr.setRequestHeader("X-CSRFToken", "{{ csrf_token }}"); }, success: function(data) { if(data.status == 'fail'){ if(data.msg == '用户未登录'){ window.location.href="/login/"; }else{ alert(data.msg) } }else if(data.status == 'success'){ window.location.reload();//刷新当前页面. } }, }); }); </script> {% endblock %}
9.6.相关课程推荐
(1)view
#相关课程推荐 # 找到学习这门课的所有用户 user_courses = UserCourse.objects.filter(course=course) # 找到学习这门课的所有用户的id user_ids = [user_course.user_id for user_course in user_courses] # 通过所有用户的id,找到所有用户学习过的所有过程 all_user_courses = UserCourse.objects.filter(user_id__in=user_ids) # 取出所有课程id course_ids = [all_user_course.course_id for all_user_course in all_user_courses] # 通过所有课程的id,找到所有的课程，按点击量去五个 relate_courses = Course.objects.filter(id__in=course_ids).order_by("-click_nums")[:5]
class CourseInfoView(View): '''课程章节信息''' def get(self,request,course_id): course = Course.objects.get(id=int(course_id)) #相关课程推荐 # 找到学习这门课的所有用户 user_courses = UserCourse.objects.filter(course=course) # 找到学习这门课的所有用户的id user_ids = [user_course.user_id for user_course in user_courses] # 通过所有用户的id,找到所有用户学习过的所有过程 all_user_courses = UserCourse.objects.filter(user_id__in=user_ids) # 取出所有课程id course_ids = [all_user_course.course_id for all_user_course in all_user_courses] # 通过所有课程的id,找到所有的课程，按点击量去五个 relate_courses = Course.objects.filter(id__in=course_ids).order_by("-click_nums")[:5] # 资源 all_resources = CourseResource.objects.filter(course=course) return render(request,'course-video.html',{ 'course':course, 'all_resources':all_resources, 'relate_courses':relate_courses, })
(2)前端 coure-vedio.html
<div class="cp-other-learned js-comp-tabs"> <div class="cp-header clearfix"> <h2 class="cp-tit l">该课的同学还学过</h2> </div> <div class="cp-body"> <div class="cp-tab-pannel js-comp-tab-pannel" data-pannel="course" style="display: block"> <!-- img 200 x 112 --> <ul class="other-list"> {% for relate_course in relate_courses %} <li class="curr"> <a href="{% url 'course:course_detail' relate_course.id %}" target="_blank"> <img src="{{ MEDIA_URL }}{{ relate_course.image }}" alt="{{ relate_course.name }}"> <span class="name autowrap">{{ relate_course.name }}</span> </a> </li> {% endfor %} </ul> </div> </div> </div>
9.7.把课程与用户关联起来
当用户点了“开始学习”之后，应该把这门课程与用户关联起来，在这之前应该需要做个判断，如果没有登录，则让用户先登录才可以。
如果是用函数方式写的话直接加个装饰器（@login_required）就可以，但是我们是用类的方式写的，必须用继承的方式
在utils目录下创建文件 mixin_utils.py（最基本的类都放在mixin_utils.py里面），代码如下：
# apps/utils/mixin_utils.py from django.contrib.auth.decorators import login_required from django.utils.decorators import method_decorator class LoginRequiredMixin(object): @method_decorator(login_required(login_url='/login/')) def dispatch(self,request,*args,**kwargs): return super(LoginRequiredMixin, self).dispatch(request,*args,**kwargs)
在django中已Mixin结尾的，就代表最基本的View
然后让CourseInfoView和CommentsView都继承LoginRequiredMixin
class CommentsView(LoginRequiredMixin,View): . . . class CourseInfoView(LoginRequiredMixin,View): . . .
继承后，没有登录的用户点“开始学习”，自动跳到login界面
把用户与课程关联起来
# 查询用户是否已经学习了该课程 user_courses = UserCourse.objects.filter(user=request.user,course=course) if not user_courses: # 如果没有学习该门课程就关联起来 user_course = UserCourse(user=request.user,course=course) user_course.save()
全部代码：
class CourseInfoView(LoginRequiredMixin,View): '''课程章节信息''' def get(self,request,course_id): course = Course.objects.get(id=int(course_id)) # 查询用户是否已经学习了该课程 user_courses = UserCourse.objects.filter(user=request.user,course=course) if not user_courses: # 如果没有学习该门课程就关联起来 user_course = UserCourse(user=request.user,course=course) user_course.save() #相关课程推荐 # 找到学习这门课的所有用户 user_courses = UserCourse.objects.filter(course=course) # 找到学习这门课的所有用户的id user_ids = [user_course.user_id for user_course in user_courses] # 通过所有用户的id,找到所有用户学习过的所有过程 all_user_courses = UserCourse.objects.filter(user_id__in=user_ids) # 取出所有课程id course_ids = [all_user_course.course_id for all_user_course in all_user_courses] # 通过所有课程的id,找到所有的课程，按点击量去五个 relate_courses = Course.objects.filter(id__in=course_ids).order_by("-click_nums")[:5] # 资源 all_resources = CourseResource.objects.filter(course=course) return render(request,'course-video.html',{ 'course':course, 'all_resources':all_resources, 'relate_courses':relate_courses, })
现在你点“开始学习”其它课程后，在“该课的同学好学过”下面能看到，说明没问题
9.8.视频播放页面
（1）把course-paly.html拷贝到templates目录下
主要不同的是css和一个vedio div
下载video-js.min.css和video.min.js分别放到css和js目录下
（2）url
# 课程视频播放页 path('video/(?P<video_id>\d+)/', VideoPlayView.as_view(), name="video_play"),
（3）修改course-video.html中video的链接
<li> <a target="_blank" href='{% url 'course:video_play' vedio.id %}' class="J-media-item studyvideo">{{ vedio.name }} ({{ vedio.learn_times }}) <i class="study-state"></i> </a> </li>
（4）view
class VideoPlayView(LoginRequiredMixin, View): '''课程章节视频播放页面''' def get(self,request,video_id): video = Video.objects.get(id=int(video_id)) #通过外键找到章节再找到视频对应的课程 course = video.lesson.course course.students += 1 course.save() # 查询用户是否已经学习了该课程 user_courses = UserCourse.objects.filter(user=request.user,course=course) if not user_courses: # 如果没有学习该门课程就关联起来 user_course = UserCourse(user=request.user,course=course) user_course.save() #相关课程推荐 # 找到学习这门课的所有用户 user_courses = UserCourse.objects.filter(course=course) # 找到学习这门课的所有用户的id user_ids = [user_course.user_id for user_course in user_courses] # 通过所有用户的id,找到所有用户学习过的所有过程 all_user_courses = UserCourse.objects.filter(user_id__in=user_ids) # 取出所有课程id course_ids = [all_user_course.course_id for all_user_course in all_user_courses] # 通过所有课程的id,找到所有的课程，按点击量去五个 relate_courses = Course.objects.filter(id__in=course_ids).order_by("-click_nums")[:5] # 资源 all_resources = CourseResource.objects.filter(course=course) return render(request,'course-play.html',{ 'course':course, 'all_resources':all_resources, 'relate_courses':relate_courses, 'video':video, })
# course/views.py from django.shortcuts import render from django.views.generic import View from .models import Course,CourseResource,Video from operation.models import UserFavorite,CourseComments,UserCourse from pure_pagination import Paginator, EmptyPage, PageNotAnInteger from django.http import HttpResponse from utils.mixin_utils import LoginRequiredMixin class CourseListView(View): '''课程列表''' def get(self, request): all_courses = Course.objects.all().order_by('-add_time') # 热门课程推荐 hot_courses = Course.objects.all().order_by('-click_nums')[:3] # 排序 sort = request.GET.get('sort', "") if sort: if sort == "students": all_courses = all_courses.order_by("-students") elif sort == "hot": all_courses = all_courses.order_by("-click_nums") # 分页 try: page = request.GET.get('page', 1) except PageNotAnInteger: page = 1 p = Paginator(all_courses,2 , request=request) courses = p.page(page) return render(request, "course-list.html", { "all_courses":courses, 'sort': sort, 'hot_courses':hot_courses, }) class CourseDetailView(View): '''课程详情''' def get(self, request, course_id): course = Course.objects.get(id=int(course_id)) # 课程的点击数加1 course.click_nums += 1 course.save() # 课程标签 # 通过当前标签，查找数据库中的课程 has_fav_course = False has_fav_org = False # 必须是用户已登录我们才需要判断。 if request.user.is_authenticated: if UserFavorite.objects.filter(user=request.user, fav_id=course.id, fav_type=1): has_fav_course = True if UserFavorite.objects.filter(user=request.user, fav_id=course.course_org.id, fav_type=2): has_fav_org = True tag = course.tag if tag: # 需要从1开始不然会推荐自己 relate_courses = Course.objects.filter(tag=tag)[:2] else: relate_courses = [] return render(request, "course-detail.html", { 'course':course, 'relate_courses':relate_courses, "has_fav_course": has_fav_course, "has_fav_org": has_fav_org, }) class CourseInfoView(LoginRequiredMixin,View): '''课程章节信息''' def get(self,request,course_id): course = Course.objects.get(id=int(course_id)) course.students += 1 course.save() # 查询用户是否已经学习了该课程 user_courses = UserCourse.objects.filter(user=request.user,course=course) if not user_courses: # 如果没有学习该门课程就关联起来 user_course = UserCourse(user=request.user,course=course) user_course.save() #相关课程推荐 # 找到学习这门课的所有用户 user_courses = UserCourse.objects.filter(course=course) # 找到学习这门课的所有用户的id user_ids = [user_course.user_id for user_course in user_courses] # 通过所有用户的id,找到所有用户学习过的所有过程 all_user_courses = UserCourse.objects.filter(user_id__in=user_ids) # 取出所有课程id course_ids = [all_user_course.course_id for all_user_course in all_user_courses] # 通过所有课程的id,找到所有的课程，按点击量去五个 relate_courses = Course.objects.filter(id__in=course_ids).order_by("-click_nums")[:5] # 资源 all_resources = CourseResource.objects.filter(course=course) return render(request,'course-video.html',{ 'course':course, 'all_resources':all_resources, 'relate_courses':relate_courses, }) class CommentsView(LoginRequiredMixin,View): '''课程评论''' def get(self, request, course_id): course = Course.objects.get(id=int(course_id)) all_resources = CourseResource.objects.filter(course=course) all_comments = CourseComments.objects.all() return render(request, "course-comment.html", { "course": course, "all_resources": all_resources, 'all_comments':all_comments, }) #添加评论 class AddCommentsView(View): '''用户评论''' def post(self, request): if not request.user.is_authenticated: # 未登录时返回json提示未登录，跳转到登录页面是在ajax中做的 return HttpResponse('{"status":"fail", "msg":"用户未登录"}', content_type='application/json') course_id = request.POST.get("course_id", 0) comments = request.POST.get("comments", "") if int(course_id) > 0 and comments: # 实例化一个course_comments对象 course_comments = CourseComments() # 获取评论的是哪门课程 course = Course.objects.get(id = int(course_id)) # 分别把评论的课程、评论的内容和评论的用户保存到数据库 course_comments.course = course course_comments.comments = comments course_comments.user = request.user course_comments.save() return HttpResponse('{"status":"success", "msg":"评论成功"}', content_type='application/json') else: return HttpResponse('{"status":"fail", "msg":"评论失败"}', content_type='application/json') class VideoPlayView(LoginRequiredMixin, View): '''课程章节视频播放页面''' def get(self,request,video_id): video = Video.objects.get(id=int(video_id)) #通过外键找到章节再找到视频对应的课程 course = video.lesson.course course.students += 1 course.save() # 查询用户是否已经学习了该课程 user_courses = UserCourse.objects.filter(user=request.user,course=course) if not user_courses: # 如果没有学习该门课程就关联起来 user_course = UserCourse(user=request.user,course=course) user_course.save() #相关课程推荐 # 找到学习这门课的所有用户 user_courses = UserCourse.objects.filter(course=course) # 找到学习这门课的所有用户的id user_ids = [user_course.user_id for user_course in user_courses] # 通过所有用户的id,找到所有用户学习过的所有过程 all_user_courses = UserCourse.objects.filter(user_id__in=user_ids) # 取出所有课程id course_ids = [all_user_course.course_id for all_user_course in all_user_courses] # 通过所有课程的id,找到所有的课程，按点击量去五个 relate_courses = Course.objects.filter(id__in=course_ids).order_by("-click_nums")[:5] # 资源 all_resources = CourseResource.objects.filter(course=course) return render(request,'course-play.html',{ 'course':course, 'all_resources':all_resources, 'relate_courses':relate_courses, 'video':video, })
{% extends 'base.html' %} {% block titile %} {{ video.name }} 在线网 {% endblock %} {% load staticfiles %} <!--crumbs start--> {% block custom_bread %} <section> <div class="wp"> <div class="crumbs"> <ul> <li><a href="{% url 'index' %}">首页</a>></li> <li><a href="{% url 'course:course_list' %}">公开课程</a>></li> <li><a href="{% url 'course:course_detail' course.id %}">{{ course.name }}</a>></li> <li></li> </ul> </div> </div> </section> {% endblock %} {% block custom_css %} <link rel="stylesheet" type="text/css" href="{% static 'css/video-js.min.css' %}"> <link rel="stylesheet" type="text/css" href="{% static 'css/muke/base.css' %}"/> <link rel="stylesheet" type="text/css" href="{% static 'css/muke/common-less.css' %}"/> <link rel="stylesheet" type="text/css" href="{% static 'css/muke/course/learn-less.css' %}"/> <link rel="stylesheet" type="text/css" href="{% static 'css/mooc.css' %}"/> <link rel="stylesheet" type="text/css" href="{% static 'css/muke/course/common-less.css' %}"> <style> .video-js .vjs-big-play-button { top: 50%; left: 50%; } </style> {% endblock %} {% block custom_js %} <script src="{% static 'js/video.min.js' %}" type="text/javascript"></script> {% endblock %} {% block content %} <div id="main"> <div class="course-info-main clearfix w has-progress"> <div style="width:1200px;height: 650px; margin-left:100px"> <video id="example_video_1" class="video-js vjs-default-skin" controls preload="none" width="1200" poster="http://video-js.zencoder.com/oceans-clip.png" data-setup="" type="video/mp4"> <source src="{{ video.url }}"> </video> </div> <div class="info-bar clearfix"> <div class="content-wrap clearfix"> <div class="content"> <div class="mod-tab-menu"> <ul class="course-menu clearfix"> <li><a class="ui-tabs-active active" id="learnOn" href="{% url 'course:course_info' course.id %}"><span>章节</span></a></li> <li><a id="commentOn" class="" href="{% url 'course:course_comments' course.id %}"><span>评论</span></a></li> </ul> </div> <div id="notice" class="clearfix"> <div class="l"><strong>课程公告:</strong> <a href="javascript:void(0)">Spring的文档以及相关的jar文件已上传</a></div> </div> <div class="mod-chapters"> {% for lesson in course.lesson_set.get_queryset %} <div class="chapter chapter-active"> <h3> <strong><i class="state-expand"></i>{{ lesson.name }}</strong> </h3> <ul class="video"> {% for video in lesson.video_set.get_queryset %} <li> <a target="_blank" href='{% url 'course:video_play' video.id %}' class="J-media-item studyvideo">{{ video.name }} ({{ video.learn_times }}) <i class="study-state"></i> </a> </li> {% endfor %} </ul> </div> {% endfor %} </div> </div> <div class="aside r"> <div class="bd"> <div class="box mb40"> <h4>资料下载</h4> <ul class="downlist"> {% for course_resource in course.courseresource_set.get_queryset %} <li> <span><i class="aui-iconfont aui-icon-file"></i> {{ course_resource.name }}</span> <a href="{{ MEDIA_URL }}{{ course_resource.download }}" class="downcode" target="_blank" download="" data-id="274" title="">下载</a> </li> {% endfor %} </ul> </div> <div class="box mb40"> <h4>讲师提示</h4> <div class="teacher-info"> <a href="{% url 'org:teacher_detail' course.teacher.id %}" target="_blank"> <img src='{{ MEDIA_URL }}{{ course.teacher.image }}' width='80' height='80'/> </a> <span class="tit"> <a href="{% url 'org:teacher_detail' course.teacher.id %}" target="_blank">{{ course.teacher.name }}</a> </span> <span class="job">{{ course.teacher.work_position }}</span> </div> <div class="course-info-tip"> <dl class="first"> <dt>课程须知</dt> <dd class="autowrap">{{ course.you_need_know }}</dd> </dl> <dl> <dt>老师告诉你能学到什么？</dt> <dd class="autowrap">{{ course.teacher_tell }}</dd> </dl> </div> </div> <div class="cp-other-learned js-comp-tabs"> <div class="cp-header clearfix"> <h2 class="cp-tit l">该课的同学还学过</h2> </div> <div class="cp-body"> <div class="cp-tab-pannel js-comp-tab-pannel" data-pannel="course" style="display: block"> <!-- img 200 x 112 --> <ul class="other-list"> {% for relate_course in relate_courses %} <li class="curr"> <a href="{% url 'course:course_detail' relate_course.id %}" target="_blank"> <img src="{{ MEDIA_URL }}{{ relate_course.image }}" alt="{{ relate_course.name }}"> <span class="name autowrap">{{ relate_course.name }}</span> </a> </li> {% endfor %} </ul> </div> <div class="cp-tab-pannel js-comp-tab-pannel" data-pannel="plan"> <ul class="other-list"> </ul> </div> </div> </div> </div> </div> </div> <div class="clear"></div> </div> </div> </div> {% endblock %}
posted on 2018-03-27 01:20 zhang_derek 阅读(9808) 评论(8) 编辑 收藏 举报
