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- from django import forms
- from django.conf import settings
- from django.contrib.flatpages.models import FlatPage
- from django.utils.translation import ugettext, ugettext_lazy as _
-
-
- class FlatpageForm(forms.ModelForm):
- url = forms.RegexField(label=_("URL"), max_length=100, regex=r'^[-\w/\.~]+$',
- help_text=_("Example: '/about/contact/'. Make sure to have leading"
- " and trailing slashes."),
- error_messages={
- "invalid": _("This value must contain only letters, numbers,"
- " dots, underscores, dashes, slashes or tildes."),
- },
- )
-
- class Meta:
- model = FlatPage
- fields = '__all__'
-
- def clean_url(self):
- url = self.cleaned_data['url']
- if not url.startswith('/'):
- raise forms.ValidationError(
- ugettext("URL is missing a leading slash."),
- code='missing_leading_slash',
- )
- if (settings.APPEND_SLASH and
- 'django.middleware.common.CommonMiddleware' in settings.MIDDLEWARE_CLASSES and
- not url.endswith('/')):
- raise forms.ValidationError(
- ugettext("URL is missing a trailing slash."),
- code='missing_trailing_slash',
- )
- return url
-
- def clean(self):
- url = self.cleaned_data.get('url')
- sites = self.cleaned_data.get('sites')
-
- same_url = FlatPage.objects.filter(url=url)
- if self.instance.pk:
- same_url = same_url.exclude(pk=self.instance.pk)
-
- if sites and same_url.filter(sites__in=sites).exists():
- for site in sites:
- if same_url.filter(sites=site).exists():
- raise forms.ValidationError(
- _('Flatpage with url %(url)s already exists for site %(site)s'),
- code='duplicate_url',
- params={'url': url, 'site': site},
- )
-
- return super(FlatpageForm, self).clean()
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