class TenantMixin:
    def get_queryset(self):
        qs = super().get_queryset()
        tenant = getattr(self.request.user, 'tenant', None)
        if tenant and not self.request.user.is_superuser:
            # Models with patient FK:
            if hasattr(qs.model, 'patient'):
                return qs.filter(patient__tenant=tenant)
            # NoteTemplate uses tenant directly:
            return qs.filter(tenant=tenant)
        return qs

    def get_object(self, queryset=None):
        qs = queryset or self.get_queryset()
        return super().get_object(qs)


class FormKwargsMixin:
    def get_form_kwargs(self):
        kw = super().get_form_kwargs()
        kw['user'] = self.request.user
        kw['tenant'] = getattr(self.request.user, 'tenant', None)
        return kw