After solving a problem described at:
http://groups-beta.google.com/group/django-users/browse_frm/thread/b453f0c91e29cc04?hl=nl
I continued developping my model. Unfortunately a new problem arose.
Given the following model, I get an error message in admin after
successfully saving an article and then selecting it.
MenuItem matching query does not exist.
The model describes an article 1to1 to menuitem
and a menuitem Mt1 to itself.
This way I try to get some kind of menustructure.
What causes the problem?
##### model #####
from django.db import models
from django.core import validators
class Article(models.Model):
headline = models.CharField(maxlength=200)
body = models.TextField()
art_image = models.CharField(maxlength=200, help_text="FileBrowser:
/", blank=True, null=True)
pub_date = models.DateTimeField('date published')
published = models.BooleanField()
def __str__(self):
return self.headline
class Admin:
fields = (
(None, {'fields': ('headline','body','art_image')}),
('Publication information', {'fields':
('pub_date','published'), 'classes': 'collapse'}),
)
date_hierarchy = 'pub_date'
list_filter = ['pub_date']
search_fields = ['headine']
js = (
'js/tiny_mce/tiny_mce.js',
'js/textareas.js',
'js/AddFileBrowser.js',
)
class MenuItem (models.Model):
article = models.OneToOneField(Article, edit_inline=models.TABULAR,
num_in_admin=1)
caption = models.CharField(maxlength=40, db_index=True, core=True)
parent = models.ForeignKey('self', blank=True, null=True,
related_name='child', core=True)
def __str__(self):
return self.caption
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