（十二）Django 在线平台(项目首页配置)

项目目录下配置urls

from users.views import IndexView

UsersApp下编写View视图函数

class IndexView(View):
    """
        X.xx在线网首页
    """
    def get(self, request):
        # 取出轮播图
        all_banners = Banner.objects.all().order_by('index')
        courses = Course.objects.filter(is_banner=False)[:6]
        banner_courses = Course.objects.filter(is_banner=True)[:3]
        courses_orgs = CourseOrg.objects.all()[:15]
        return render(request, 'index.html', {
            'all_banners': all_banners,
            'courses': courses,
            'banner_courses': banner_courses,
            'courses_orgs': courses_orgs
        })

配置首页显示：

轮播图显示：

<div class="banner">
<div class="wp">
   <div class="fl">
      <div class="imgslide">
         <ul class="imgs">
                         {% for banner in all_banners %}
                         <li>
                                 <a href="{{ banner.url }}">
                                     <img width="1200" height="478" src="{{ MEDIA_URL }}{{ banner.image }}" />
                                 a>
                             li>
                         {% endfor %}

         ul>
      div>
      <div class="unslider-arrow prev">div>
      <div class="unslider-arrow next">div>
   div>

   div>


div>

首页课程轮播显示：

<div class="right group_list">
   <div class="module1_2 box">
      <div class="imgslide2">
         <ul class="imgs">
                               {% for banner_course in banner_courses %}
                               <li>
                                   <a href="{% url 'course:course_detail' banner_course.id %}">
                                       <img width="470" height="300" src="{{ MEDIA_URL }}{{ banner_course.image }}" />
                                   a>
                               li>
                               {% endfor %}

         ul>
      div>
      <div class="unslider-arrow2 prev">div>
      <div class="unslider-arrow2 next">div>
   div>

 {% for course in courses %}
                       <div class="module1_{{ forloop.counter|add:2 }} box">
                           <a href="{% url 'course:course_detail' course.id %}">
                               <img width="233" height="190" src="{{ MEDIA_URL }}{{ course.image }}"/>
                           a>
                           <div class="des">
                               <a href="course-detail.html">
                                   <h2 title="django入门">{{ course.name }}h2>
                               a>
                               <span class="fl">难度：<i class="key">{{ course.get_degree_display }}i>span>
                               <span class="fr">学习人数：{{ course.students }}span>
                           div>
                           <div class="bottom">
                               <span class="fl" title="{{ course.course_org.name }}">{{ course.course_org.name }}span>
                               <span class="star fr">{{ course.fav_nums }}span>
                           div>
                       div>
                       {% endfor %}


div>

首页课程机构显示：

<section>
   <div class="module greybg">
      <div class="wp">
         <h1>课程机构h1>
         <div class="module3 eachmod">
            <div class="module3_1 left">
               <img width="228" height="463" src="/static/images/module3_1.jpg"/>
               <p class="fisrt_word">名校来袭<br/>权威认证p>
               <a class="more" href="{% url 'org:org_list' %}">查看更多机构 >a>
            div>
            <div class="right">
               <ul>
                           {% for org in courses_orgs %}
                               <li class="{% if forloop.counter|divisibleby:5 %}five{% endif %}">
                                   <a href="{% url 'org:org_home' org.id %}">
                                       <div class="company">
                                           <img width="184" height="100" src="{{ MEDIA_URL }}{{ org.image }}"/>
                                           <div class="score">
                                               <div class="circle">
                                                   <h2>{{ org.tag }}h2>
                                               div>
                                           div>
                                       div>
                                       <p><span class="key" title="{{ org.name }}">{{ org.name }}span>p>
                                   a>
                               li>
                           {% endfor %}


               ul>
            div>
         div>
      div>
   div>
section>

在退出重新登录之后页面显示不正常需要重新编写LoginView函数：

from django.core.urlresolvers import reverse

class LoginView(View):
    """
        基础类的登录方法
    """

    def get(self, request):
        # 重写View的get方法
        return render(request, 'login.html', {})

    def post(self, request):
        # 实例化LoginForm传值request.POST(是字典形式)会先传入forms进行验证
        login_form = LoginForm(request.POST)
        # is_valid()方法会先进行判断用户名密码 如果errors为空则进行下一步
        if login_form.is_valid():
            user_name = request.POST.get('username', '')
            pass_word = request.POST.get('password', '')
            # authenticate方法只进行验证
            user = authenticate(username=user_name, password=pass_word)
            if user is not None:
                if user.is_active:
                    # login方法实现登录
                    login(request, user)
                    return HttpResponseRedirect(reverse('index'))
                else:
                    return render(request, 'login.html', {
                        'msg': '用户未激活',
                    })
            else:
                return render(request, 'login.html', {
                    'msg': '用户名或密码错误',
                })
        else:
            return render(request, 'login.html', {
                'login_form': login_form,
            })

主要是这句

 return HttpResponseRedirect(reverse('index'))