wagtail-modeltranslation/wagtail_modeltranslation/patch_wagtailadmin_forms.py

107 lines
5 KiB
Python

# coding: utf-8
from django import forms
from django.conf import settings
from django.core.exceptions import ValidationError
from django.utils.translation import ugettext as _
from django.utils.translation import ungettext
try:
from wagtail.core.models import Page
from wagtail.admin import widgets
from wagtail.admin.forms.pages import CopyForm
except ImportError:
from wagtail.wagtailcore.models import Page
from wagtail.wagtailadmin import widgets
from wagtail.wagtailadmin.forms import CopyForm
class PatchedCopyForm(CopyForm):
def __init__(self, *args, **kwargs):
# CopyPage must be passed a 'page' kwarg indicating the page to be copied
self.page = kwargs.pop('page')
self.user = kwargs.pop('user', None)
can_publish = kwargs.pop('can_publish')
super(CopyForm, self).__init__(*args, **kwargs)
#self.fields['new_title'] = forms.CharField(initial=self.page.title, label=_("New title"))
for code, name in settings.LANGUAGES:
locale_title = "new_title_{}".format(code)
locale_label = "{} [{}]".format(_("New title"), code)
self.fields[locale_title] = forms.CharField(initial=self.page.title, label=locale_label)
#self.fields['new_slug'] = forms.SlugField(initial=self.page.slug, label=_("New slug"))
for code, name in settings.LANGUAGES:
locale_title = "new_slug_{}".format(code)
locale_label = "{} [{}]".format(_("New slug"), code)
self.fields[locale_title] = forms.SlugField(initial=self.page.slug, label=locale_label)
self.fields['new_parent_page'] = forms.ModelChoiceField(
initial=self.page.get_parent(),
queryset=Page.objects.all(),
widget=widgets.AdminPageChooser(can_choose_root=True, user_perms='copy_to'),
label=_("New parent page"),
help_text=_("This copy will be a child of this given parent page.")
)
pages_to_copy = self.page.get_descendants(inclusive=True)
subpage_count = pages_to_copy.count() - 1
if subpage_count > 0:
self.fields['copy_subpages'] = forms.BooleanField(
required=False, initial=True, label=_("Copy subpages"),
help_text=ungettext(
"This will copy %(count)s subpage.",
"This will copy %(count)s subpages.",
subpage_count) % {'count': subpage_count})
if can_publish:
pages_to_publish_count = pages_to_copy.live().count()
if pages_to_publish_count > 0:
# In the specific case that there are no subpages, customise the field label and help text
if subpage_count == 0:
label = _("Publish copied page")
help_text = _("This page is live. Would you like to publish its copy as well?")
else:
label = _("Publish copies")
help_text = ungettext(
"%(count)s of the pages being copied is live. Would you like to publish its copy?",
"%(count)s of the pages being copied are live. Would you like to publish their copies?",
pages_to_publish_count) % {'count': pages_to_publish_count}
self.fields['publish_copies'] = forms.BooleanField(
required=False, initial=True, label=label, help_text=help_text
)
def clean(self):
cleaned_data = super(CopyForm, self).clean()
# Make sure the slug isn't already in use
# slug = cleaned_data.get('new_slug')
# New parent page given in form or parent of source, if parent_page is empty
parent_page = cleaned_data.get('new_parent_page') or self.page.get_parent()
# check if user is allowed to create a page at given location.
if not parent_page.permissions_for_user(self.user).can_add_subpage():
raise ValidationError({
'new_parent_page': _("You do not have permission to copy to page \"%(page_title)s\"") % {'page_title': parent_page.get_admin_display_title()}
})
# Count the pages with the same slug within the context of our copy's parent page
for code, name in settings.LANGUAGES:
locale_slug = "new_slug_{}".format(code)
slug = cleaned_data.get(locale_slug)
param = 'slug_' + code
query = {param: slug}
if slug and parent_page.get_children().filter(**query).count():
raise ValidationError({
locale_slug: _("This slug is already in use within the context of its parent page \"%s\"" % parent_page)
})
# Don't allow recursive copies into self
if cleaned_data.get('copy_subpages') and (self.page == parent_page or parent_page.is_descendant_of(self.page)):
raise ValidationError({
'new_parent_page': _("You cannot copy a page into itself when copying subpages")
})
return cleaned_data