Django 完整性错误 NOT NULL 约束

Question

i'm creating a blog site which requires a login to write a post.As of now, ive just created the create post and update post views, but when i try to submit a created post, this integrity error is raised. I dont know how to get through this. Help is appreciated:) the error

VIEWS

class CreatePost(LoginRequiredMixin,CreateView):
form_class = forms.PostForm
template_name = "blog/create_post.html"

APP URLS

app_name = 'blog'

urlpatterns = [
path("login/",auth_view.LoginView.as_view(template_name="blog/login.html"), name='login'),
path("logout/",auth_view.LogoutView.as_view(), name="logout"),
path("signup/",views.SignUpView.as_view(), name="signup"),
path("new/",views.CreatePost.as_view(), name="newpost")
]

ROOT URLS

urlpatterns = [
path('admin/', admin.site.urls),
path('', views.HomePageView.as_view(), name = "home"),
path('logged/',views.LoggedPage.as_view(), name='logged'),
path('thanks',views.ThanksPage.as_view(), name='thanks'),
path('blog/',include("blog.urls", namespace='blog')),
path('blog/',include("django.contrib.auth.urls")),
]

Answer 1

In your CreatePost , you should attach the logged in user to the post:

class CreatePost(LoginRequiredMixin, CreateView):
    form_class = forms.PostForm
    template_name = 'blog/create_post.html'
    
    def form_valid(self, form):
        form
        return super().form_valid(form)

You should also specify a success_url [Django-doc] , or a get_success_url [Django-doc] to specify to what view you redirect in case of a succesful POST request. You can also implement the get_absolute_url method [Django-doc] , to redirect to the details of that Post object.

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Note : It is normally better to make use of the settings.AUTH_USER_MODEL [Django-doc] to refer to the user model, than to use the User model [Django-doc] directly. For more information you can see the referencing the User model section of the documentation .

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Note : In Django, class-based views (CBV) often have a …View suffix, to avoid a clash with the model names. Therefore you might consider renaming the view class to CreatePostView , instead of CreatePost .