11-1 登出和点击数以及收藏数完善

一、退出功能

C:\Users\hlg\PycharmProjects\MxOnline\apps\users\views.py

class LogoutView(View):
    """
    用户登出
    from django.contrib.auth import authenticate, login, logout

    """
    def get(self, request):
        logout(request)
        #   重定向
        #  from django.http import HttpResponse, HttpResponseRedirect
        from django.core.urlresolvers import reverse
        return HttpResponseRedirect(reverse("index"))

<a class="fr" href="{% url 'logout' %}">退出</a>

二、点击数

三、收藏数

C:\Users\hlg\PycharmProjects\MxOnline\apps\organization\views.py

class AddFavView(View):
    """
    用户收藏 用户取消收藏
    """
    def post(self, request):
        fav_id = request.POST.get('fav_id', '0')
        fav_type = request.POST.get('fav_type', '0')

        if not request.user.is_authenticated():
            # 判断用户登录状态
            return HttpResponse('{"status": "fail", "msg": "用户未登录"}', content_type='application/json')
        exist_records = UserFavorite.objects.filter(user=request.user, fav_id=int(fav_id), fav_type=int(fav_type))
        if exist_records:
            # 如果记录已经存在， 则表示用户取消收藏
            exist_records.delete()

            if int(fav_type) == 1:
                course = Course.objects.get(id=int(fav_id))
                course.fav_nums -= 1
                if course.fav_nums < 0:
                    course.fav_nums = 0
                course.save()
            elif int(fav_type) == 2:
                course_org = CourseOrg.objects.get(id=int(fav_id))
                course_org.fav_nums -= 1
                if course_org.fav_nums < 0:
                    course_org.fav_nums = 0
                course_org.save()
            elif int(fav_type) == 3:
                teacher = Teacher.objects.get(id=int(fav_id))
                teacher.fav_nums -= 1
                if teacher.fav_nums < 0:
                    teacher.fav_nums = 0
                teacher.save()

        else:
            user_fav = UserFavorite()
            if int(fav_id) > 0 and int(fav_type) > 0:
                user_fav.user = request.user
                user_fav.fav_id = int(fav_id)
                user_fav.fav_type = int(fav_type)
                user_fav.save()

                if int(fav_type) == 1:
                    course = Course.objects.get(id=int(fav_id))
                    course.fav_nums += 1
                    course.save()
                elif int(fav_type) == 2:
                    course_org = CourseOrg.objects.get(id=int(fav_id))
                    course_org.fav_nums += 1
                    course_org.save()
                elif int(fav_type) == 3:
                    teacher = Teacher.objects.get(id=int(fav_id))
                    teacher.fav_nums += 1
                    teacher.save()

                return HttpResponse('{"status": "success", "msg": "已收藏"}', content_type='application/json')
            else:
                return HttpResponse('{"status": "fail", "msg": "收藏出错"}', content_type='application/json')

个人消息