About Showing Model-form Fields only for Staff Users

from django import forms
from .models import Post

class PostForm(forms.ModelForm):
    class Meta:
        model = Post
        fields = ["title", "content"]

    def __init__(self, request, *args, **kwargs):
        super().__init__(*args, **kwargs)
        self.request = request

        if request.user.is_staff:
            if self.instance._state.adding:
                is_featured_initial = False
            else:
                is_featured_initial = self.instance.is_selected
            model_field = Post._meta.get_field("is_featured")
            self.fields["is_featured"] = model_field.formfield(
                initial=is_featured_initial,
            )

    def save(self, commit=True):
        instance = super().save(commit=False)
        if "is_featured" in self.fields:
            instance.is_featured = self.cleaned_fields["is_featured"]
        if commit:
            instance.save()
            self.save_m2m()
        return instance