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目录

 

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11.1 用户退出当前登录，并回到首页

后台代码

user.views.py

from django.urls import reversefrom django.http import HttpResponse,HttpResponseRedirectclass LogoutView(View):    def get(self,request):        Logout(request)#退出登陆        '''        重定向到首页        HttpResponseRedirect 是网页重定向        reverse（from django.urls import reverse）将网页名称反解成网页地址        '''        return HttpResponseRedirect(reverse('index'))

urls.py

path('logout/',LogoutView.as_view(), name="logout"),#退出登录

11.11修改当前页面数据：将所有页面的跳转链接，click-nums,fav-nums,等数据配置好

配置课程数据信息

class CourseDetail(View):    def get(self,request,course_id):        course = Course.objects.get(id = int(course_id))        course.click_nums+=1        fav_count = UserFavorate.objects.filter(fav_type = 1,fav_id=course_id ).count()#当前课程的被收藏次数        course.fav_nums = fav_count        '''        #当前课程的学习人数        '''        count = 0        student_nums = UserCourse.objects.all()        for student in student_nums:           if student.course.id == course_id:               count +=1        course.student = count        course.save()#记录点击课程的次数        course_has_fav = False        org_has_fav = False        if request.user.is_authenticated:            username = request.user            user = UserProfile.objects.get(Q(username=username) | Q(email=username))            user_id = user.id            if UserFavorate.objects.filter(user_id=user_id, fav_id=course.id, fav_type=1):#从数据库中查询                course_has_fav = True            if UserFavorate.objects.filter(user_id = user_id ,fav_id = course.course_org.id,fav_type = 2):                org_has_fav = True        else:            username = '未登录，请点击登陆'        tag = course.tag        if tag:            relate_course = Course.objects.filter(tag = tag)            relate_course = relate_course.exclude(id = course.id)[:1]#將當前課程排除在推薦課程之外        else:            relate_course = []        return render(request,'course-detail.html',{            'course':course,            'username': username,            'relate_course':relate_course,            'course_has_fav':course_has_fav,            'org_has_fav':org_has_fav        })

将用户消息置为已读，即进入message页面就代表用户消息已读（逻辑是不是太简单了一点，我以为还要写ajax）

class UserMsgView(LoginRequiredMixin,View):    def get(self,request):        all_messages = UserMessage.objects.filter(user = request.user.id)        all_unread = UserMessage.objects.filter(user = request.user.id,has_read = False)        for message in all_unread:            message.has_read = True            message.save()

11.2 index 前端页面配置

后台代码

class IndexView(View):    def get(self,request):        course_banners = all_courses = Course.objects.all().order_by('-click_nums')[:2]        all_courses = Course.objects.all().order_by('-click_nums')[:6]        all_orgs = CourseOrg.objects.all().order_by('-click_nums')[:15]        banners = Banner.objects.all().order_by('index')[:5]#只要五张        return render(request,'index.html',{            'all_courses':all_courses,            'all_orgs':all_orgs,            'banners':banners,            'course_banners':course_banners        })

首页的View进行了修改

path('', IndexView.as_view(), name="index"),#首页

前端代码

重点代码：

{% for course in all_courses %}     
   
    {% for org in all_orgs %}   
    
   

11.3

修改全局views.py中的 render的index页面，因为从其他地方登陆的首页，拿不到之前首页配置的代码

原代码return render(request, "index.html", {'name': user_name})修改后的代码return HttpResponseRedirect(reverse('index'))

前端判断用户是否登陆

 {% if request.user.is_authenticated %}

{% if request.user.is_authenticated %}                        
   
                            
    
                                
     
                                                                        
      {
  { request.user }}                                    
                                      
     
                                
     
      
     
                            
    
                            
    
                                
     
                                    
      
                                           
      
                                    
      
                                        
       
{
  { request.user }}
                                    
      
                                
     
                                
     
                                    
      进入个人中心                                    
      退出                                
     
                            
    
                        
   
                        {% else %}                        
   
                            
    
                                
     
                                    
      注册                                    
      登录                                
     
                                
     
      
     
                            
    
                        
   
                    {% endif %}

11.4全局 404， 500页面配置

出错配置：

 

django.core.management.base.SystemCheckError: SystemCheckError: System check identified some issues:

ERRORS:

?: (staticfiles.E002) The STATICFILES_DIRS setting should not contain the STATIC_ROOT setting.

后台：

STATIC_URL = '/static/'STATICFILES_DIRS = [os.path.join(BASE_DIR, "static"),]#添加图片路径MEDIA_URL = '/media/'MEDIA_ROOT = os.path.join(BASE_DIR,'media')STATIC_ROOT = [os.path.join(BASE_DIR, "static"),]

这里的全局STATIC_ROOT和上面的STATICFILES_DIR重合了，所以就会出现这样的错

 

正确的全部配置

一、sitting里面的配置

1、将Debug = True 改为Debug= False

2、配置访问端口  ALLOWED_HOSTS = ['*']，当然还可以有其他的配置方式

3、STATIC_ROOT就不用配了，直接用STATICFILES_DIR[0],就OK了

二、工程文件下的urls.py

from .settings import MEDIA_ROOT,STATICFILES_DIRSre_path(r'^static/(?P
   
    .*)$', serve, { 'document_root': STATICFILES_DIRS[0],}),#配置静态文件路径
   

在urls的最下面配置

#全局404，500页面配置handler404 = 'users.views.page_not_found'handler500 = 'users.views.page_error'

user.views.py

#全局404处理函数def page_not_found(request):    from django.shortcuts import render_to_response    response = render_to_response('404.html',{})    response.status_code = 404    return response#500处理页面def page_error(request):    from django.shortcuts import render_to_response    response = render_to_response('500.html',{})    response.status_code = 500    return response

 

 

 

 

 

 

 

 

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