Django get() got an unexpected keyword argument

get() got an unexpected keyword argument

这种错误我现在发现有两种可能造成它的出现:   1. url 和 urls.py中的映射不匹配   2. 在views.py中相应的处理函数缺少参数

                              在views.py中相应的处理函数缺少参数

urls.py 中的映射关系


urlpatterns = [
    path('edit_course/<int:course_id>/',views.EditCourse.as_view(),name='edit_course'),
]


views.py 中的处理函数


class EditCourse(View):
    def get(self,request,course_id):    # 这里的 course_id 就是不能少的，要和映射关系对应
        course = Course.objects.get(pk=course_id)
        teachers = Teacher.objects.all()
        categories = CourseCategory.objects.all()
        context = {
            'course': course,
            'course_id': course_id,
            'teachers':teachers,
            'categories':categories,
        }
        return render(request,'cms/edit_course.html',context=context)

    def post(self,request,course_id):   # 这里的 course_id 就是不能少的，要和映射关系对应
        form = EditCourseForm(request.POST)
        if form.is_valid():
            title = form.cleaned_data.get('title')
            category_id = form.cleaned_data.get('category_id')
            teacher = form.cleaned_data.get('teacher_id')
            video_url = form.cleaned_data.get('video_url')
            cover = form.cleaned_data.get('cover_url')
            price = form.cleaned_data.get('price')
            duration = form.cleaned_data.get('duration')
            category = CourseCategory.objects.get(pk=category_id)
            pk = form.cleaned_data.get('pk')

            print(title,category_id,teacher,video_url,cover,price,duration,pk,end = ' ')

            Course.objects.filter(pk=pk).update(title=title,category = category_id,teacher = teacher,video_url = video_url,cover_url=cover,price = price,duration = duration)

            return restful.ok()
        else:
            print("form 不合法")
            return restful.params_error(message=form.get_errors())