I can't link a user to the Author model when creating an article

Question

Hello everyone I need the authorship to be automatically assigned to the user when creating an article and only he could change it. But so far, nothing is working out for me. I ask for your help. models.py

class Author(models.Model):
    author_user = models.OneToOneField(User, verbose_name='Author name', on_delete=models.CASCADE)
    ratting_author = models.SmallIntegerField(default=0, verbose_name='Ratting author')


class Post(models.Model):
    author = models.ForeignKey(Author, on_delete=models.CASCADE, verbose_name='Author')

    NEWS = 'NW'
    ARTICLE = 'AR'
    CATEGORY_CHOICES = (
        (NEWS, 'News'),
        (ARTICLE, 'Article'),
    )
    category_type = models.CharField(max_length=2, choices=CATEGORY_CHOICES, default=NEWS, verbose_name='Тип')
    date_time_create = models.DateTimeField(auto_now_add=True, verbose_name='Date created')
    categoryPost = models.ManyToManyField(Category, through='PostCategory', related_name='category', verbose_name='Category')
    heading = models.CharField(max_length=255, verbose_name='Title')
    content = models.TextField(verbose_name='Текст')
    ratting_post = models.SmallIntegerField(default=0, verbose_name='Ratting post')

view.py

class NewsCreate(PermissionRequiredMixin, CreateView):
    permission_required = ('news.add_post',)
    form_class = NewsForm
    model = Post
    template_name = 'news_create.html'

    def form_valid(self, form):
        post = form.save(commit=False)
        post.category_type = 'NW'
        form.instance.author = self.request.user.author
        post.save()
        send_email_task.delay(post.pk)
        return super().form_valid(form)

forms.py

class NewsForm(forms.ModelForm):
    heading = forms.CharField(max_length=40)
    content = forms.CharField(min_length=20)
    class Meta:
        model = Post
        fields = [
            'heading',
            'categoryPost',
            'content',
        ]

I tried everything I could. Apparently there is still little knowledge, I'm just learning.

Answer 1

views.py

In the form_valid method, make the following changes:

def form_valid(self, form):
        post = form.save(commit=False)
        post.category_type = 'NW'
        form.author = Author.objects.get(user=self.request.user) # Remember to import Author model. 
        post.save()
        ........ 

Another thing, in your NewsForm class, you are overriding fields that you have already defined in your Post model. The ModelForm class does the work of rendering the fields.