def lesson(request, course_id):
if not request.user.is_authenticated():
return HttpResponseRedirect(reverse('users:login'))
user_course = UserCourse()
#我的课程添加
course_ids = ''
for all_courses_ids in UserCourse.objects.filter(user_id=request.user.id):
course_ids += str(all_courses_ids.course_id)
if course_id not in course_ids:
user_course.user_id = int(request.user.id)
user_course.course_id = int(course_id)
user_course.save()
course = Course.objects.get(pk=int(course_id))
course.students += 1
course.save()
all_lessons = Lesson.objects.filter(course_id=course_id)
all_resources = CourseResource.objects.filter(course_id=course_id)
return render(
request, 'course-video.html', {
'course': course,
'all_lessons': all_lessons,
'all_resources': all_resources,
})
def get(self, request, course_id):
Flag = 3
id = request.session.get("id")
user_obj = UserProfile.objects.filter(id=id).first()
if user_obj:
#开始读取页面
course_obj = Course.objects.filter(id=course_id).first()
uc_obj = UserCourse.objects.filter(user_id=id,
course_id=course_id).first()
if uc_obj:
pass #已经在学习
else:
u_course = UserCourse()
u_course.user_id = id
u_course.course_id = course_id
u_course.save()
#课程表学习人数加1
course_obj.students += 1
course_obj.save()
#资源下载
all_resource = CourseResource.objects.filter(
course_id=course_id).all()
if course_obj:
#存在课程
return render(request, "course-video.html", locals())
else:
return redirect("/course/list/", locals())
else:
return redirect("/login/")
def post(self, request):
user_id = request.user.id
course_id = request.POST.get('course_id', 0)
course = Course.objects.get(id=course_id)
#增加学习课程的数据记录
if request.user.is_authenticated():
user_course = UserCourse()
#判断是否存在记录
exist_records = UserCourse.objects.filter(user_id=int(user_id),
course_id=int(course_id))
if not exist_records:
user_course.user_id = user_id
user_course.course_id = course_id
user_course.save()
#更新课程学习人数
students = UserCourse.objects.filter(
course_id=int(course_id)).count()
course.students = students
course.save()
return HttpResponse('{"status":"transfer","msg":"正在学习"}',
content_type='application/json')
else:
exist_records.delete()
# 更新课程学习人数
students = UserCourse.objects.filter(
course_id=int(course_id)).count()
course.students = students
course.save()
return HttpResponse('{"status":"concel","msg":"我要学习"}',
content_type='application/json')
else:
return HttpResponse('{"status":"fail","msg":"用户未登录"}',
content_type='application/json')
