fix

promo/models.py

@@ -1,7 +1,7 @@
 #-*- coding: utf-8 -*-
 from django.db import models
 
-from cms.models import Page
+from cms.models import Page, fields
 from django.utils.translation import ugettext_lazy as _
 from parler.models import TranslatableModel, TranslatedFields
 from djangocms_text_ckeditor.fields import HTMLField
@@ -11,8 +11,7 @@ from djangocms_text_ckeditor.fields import HTMLField
 class Promo(TranslatableModel):
     title = models.CharField(max_length=200)
 
-    page_link = models.ForeignKey(
+    page_link = fields.PageField(
-        Page,
         verbose_name=_('page'),
         blank=True,
         null=True,