ForeignKey relationship to FlatPage not available in filter()

[Sceva]

I have a project using the FlatPage app.  I have added a search app with a keyword model. It has a foreignkey relationship to the FlatPage model:

from django.contrib import admin

from django.db import models

from django.contrib.flatpages.models import FlatPage

class SearchKeyword(models.Model):

    keyword_search = models.CharField(max_length=50)

    page = models.ForeignKey(FlatPage, related_name='fkpage')

    def __unicode__(self):

        return self.keyword_search

The problem is when trying to do a filter like so:

Flatpage.objects.filter(fkpage__keyword__contains='one') 

I get an error:

"FieldError: Cannot resolve keyword 'fkpage' into field. Choices are: content, enable_comments, id, registration_required, sites, template_name, title, url" 

In trying to solve this I set up another model within the search app called FlatPage2 and am successful with:

Flatpage2.objects.filter(fkpage2__keyword__contains='one')  

 

So the problem seems to be accessing relationships across apps.  Anyone have any ideas? The model code is below:

from django.contrib import admin

from django.db import models

from django.contrib.flatpages.models import FlatPage

class FlatPage2(models.Model):

    url = models.URLField()

    title = models.CharField(max_length=50)

    def __unicode__(self):

        return self.title

class SearchKeyword(models.Model):

    keyword_search = models.CharField(max_length=50)

    page = models.ForeignKey(FlatPage, related_name='fkpage')

    page2 = models.ForeignKey(FlatPage2, related_name='fkpage2')

 

    def __unicode__(self):

        return self.keyword_search

Thanks. 

[Sceva]

I think the problem was I did not have 

from django.db import models

at the top.