Add BigAutoField to id fields

Author: arkain

src/djangocms_snippet/models.py

@@ -30,6 +30,8 @@ class SnippetGrouper(models.Model):
     The Grouper model for snippet, this is required for versioning
     """
 
+    id = models.BigAutoField(auto_created=True, primary_key=True, serialize=False, verbose_name="ID")
+
     def __str__(self):
         return self.name
 
@@ -59,6 +61,8 @@ class Snippet(models.Model):
     A snippet of HTML or a Django template
     """
 
+    id = models.BigAutoField(auto_created=True, primary_key=True, serialize=False, verbose_name="ID")
+
     name = models.CharField(
         verbose_name=_("Name"),
         max_length=255,