EmptyPageContent' object has no attribute '_meta'

[stuaxo]

Django CMS has a special EmptyPageContent object.
This is not a model instance, and so doesn't have a _meta it will fail as it doesn't have one.

This can come up when pages have been generated programatically and results in a confusing error.

Template error:
In template [snipped]base.html, error at line 126
   'EmptyPageContent' object has no attribute '_meta'   116 :         <script type="text/javascript">
   117 :             var countryCode = "{{ COUNTRY_CODE }}";
   118 :             var countryType = "{{ COUNTRY_TYPE }}";
   119 :         </script>

Traceback:

File "/usr/local/lib/python3.6/site-packages/django/core/handlers/exception.py" in inner
  41.             response = get_response(request)

File "/usr/local/lib/python3.6/site-packages/django/core/handlers/base.py" in _legacy_get_response
  249.             response = self._get_response(request)

File "/usr/local/lib/python3.6/site-packages/django/core/handlers/base.py" in _get_response
  217.                 response = self.process_exception_by_middleware(e, request)

File "/usr/local/lib/python3.6/site-packages/django/core/handlers/base.py" in _get_response
  215.                 response = response.render()

File "/usr/local/lib/python3.6/site-packages/django/template/response.py" in render
  107.             self.content = self.rendered_content

File "/usr/local/lib/python3.6/site-packages/django/template/response.py" in rendered_content
  84.         content = template.render(context, self._request)

File "/usr/local/lib/python3.6/site-packages/django/template/backends/django.py" in render
  66.             return self.template.render(context)

File "/usr/local/lib/python3.6/site-packages/django/template/base.py" in render
  207.                     return self._render(context)

File "/usr/local/lib/python3.6/site-packages/django/template/base.py" in _render
  199.         return self.nodelist.render(context)

File "/usr/local/lib/python3.6/site-packages/django/template/base.py" in render
  990.                 bit = node.render_annotated(context)

File "/usr/local/lib/python3.6/site-packages/django/template/base.py" in render_annotated
  957.             return self.render(context)

File "/usr/local/lib/python3.6/site-packages/django/template/loader_tags.py" in render
  177.             return compiled_parent._render(context)

File "/usr/local/lib/python3.6/site-packages/django/template/base.py" in _render
  199.         return self.nodelist.render(context)

File "/usr/local/lib/python3.6/site-packages/django/template/base.py" in render
  990.                 bit = node.render_annotated(context)

File "/usr/local/lib/python3.6/site-packages/django/template/base.py" in render_annotated
  957.             return self.render(context)

File "/usr/local/lib/python3.6/site-packages/django/template/loader_tags.py" in render
  177.             return compiled_parent._render(context)

File "/usr/local/lib/python3.6/site-packages/django/template/base.py" in _render
  199.         return self.nodelist.render(context)

File "/usr/local/lib/python3.6/site-packages/django/template/base.py" in render
  990.                 bit = node.render_annotated(context)

File "/usr/local/lib/python3.6/site-packages/django/template/base.py" in render_annotated
  957.             return self.render(context)

File "/usr/local/lib/python3.6/site-packages/classytags/core.py" in render
  154.         return self.render_tag(context, **kwargs)

File "/usr/local/lib/python3.6/site-packages/sekizai/templatetags/sekizai_tags.py" in render_tag
  88.         rendered_contents = nodelist.render(context)

File "/usr/local/lib/python3.6/site-packages/django/template/base.py" in render
  990.                 bit = node.render_annotated(context)

File "/usr/local/lib/python3.6/site-packages/django/template/base.py" in render_annotated
  957.             return self.render(context)

File "/usr/local/lib/python3.6/site-packages/classytags/core.py" in render
  154.         return self.render_tag(context, **kwargs)

File "/usr/local/lib/python3.6/site-packages/sekizai/templatetags/sekizai_tags.py" in render_tag
  88.         rendered_contents = nodelist.render(context)

File "/usr/local/lib/python3.6/site-packages/django/template/base.py" in render
  990.                 bit = node.render_annotated(context)

File "/usr/local/lib/python3.6/site-packages/django/template/base.py" in render_annotated
  957.             return self.render(context)

File "/usr/local/lib/python3.6/site-packages/classytags/core.py" in render
  154.         return self.render_tag(context, **kwargs)

File "/usr/local/lib/python3.6/site-packages/sekizai/templatetags/sekizai_tags.py" in render_tag
  88.         rendered_contents = nodelist.render(context)

File "/usr/local/lib/python3.6/site-packages/django/template/base.py" in render
  990.                 bit = node.render_annotated(context)

File "/usr/local/lib/python3.6/site-packages/django/template/base.py" in render_annotated
  957.             return self.render(context)

File "/usr/local/lib/python3.6/site-packages/classytags/core.py" in render
  154.         return self.render_tag(context, **kwargs)

File "/usr/local/lib/python3.6/site-packages/sekizai/templatetags/sekizai_tags.py" in render_tag
  88.         rendered_contents = nodelist.render(context)

File "/usr/local/lib/python3.6/site-packages/django/template/base.py" in render
  990.                 bit = node.render_annotated(context)

File "/usr/local/lib/python3.6/site-packages/django/template/base.py" in render_annotated
  957.             return self.render(context)

File "/usr/local/lib/python3.6/site-packages/classytags/core.py" in render
  154.         return self.render_tag(context, **kwargs)

File "/usr/local/lib/python3.6/site-packages/cms/templatetags/cms_tags.py" in render_tag
  439.             return toolbar.render_with_structure(context, nodelist)

File "/usr/local/lib/python3.6/site-packages/cms/toolbar/toolbar.py" in render_with_structure
  495.         self.populate()

File "/usr/local/lib/python3.6/site-packages/cms/toolbar/toolbar.py" in populate
  435.         self._call_toolbar('populate')

File "/usr/local/lib/python3.6/site-packages/cms/toolbar/toolbar.py" in _call_toolbar
  462.                 getattr(toolbar, func_name)()

File "/usr/local/lib/python3.6/site-packages/djangocms_references/cms_toolbars.py" in populate
  24.         content_type_id = ContentType.objects.get_for_model(obj).pk

File "/usr/local/lib/python3.6/site-packages/django/contrib/contenttypes/models.py" in get_for_model
  43.         opts = self._get_opts(model, for_concrete_model)

File "/usr/local/lib/python3.6/site-packages/django/contrib/contenttypes/models.py" in _get_opts
  30.             model = model._meta.concrete_model

Exception Type: AttributeError at /[snipped]/
Exception Value: 'EmptyPageContent' object has no attribute '_meta'