simple-translation/simple_translation/admin.py

245 lines
11 KiB
Python

import os
from functools import partial
from django.utils.translation import ugettext as _
from django.conf import settings
from django.db import router
from django import forms
from django.contrib import admin
from django.contrib.admin.util import unquote, get_deleted_objects, flatten_fieldsets
from django.utils.encoding import force_unicode
from django.utils.functional import curry
from django.http import HttpResponseRedirect, HttpResponse, Http404, \
HttpResponseBadRequest, HttpResponseForbidden, HttpResponseNotAllowed
from django.shortcuts import render_to_response, get_object_or_404
from django.template.context import RequestContext
from simple_translation.widgets import LanguageWidget
from simple_translation.forms import TranslationModelForm, translation_modelform_factory
from simple_translation.utils import get_language_from_request
from simple_translation.translation_pool import translation_pool
import django
def make_translation_admin(admin):
class RealTranslationAdmin(admin):
form = TranslationModelForm
list_display = ('description', 'languages')
def __init__(self, *args, **kwargs):
super(RealTranslationAdmin, self).__init__(*args, **kwargs)
info = translation_pool.get_info(self.model)
self.translated_model = info.translated_model
self.translation_of_field = info.translation_of_field
self.language_field = info.language_field
def description(self, obj):
return getattr(translation_pool.annotate_with_translations(obj), 'translations', []) \
and unicode(translation_pool.annotate_with_translations(obj).translations[0]) or u'No translations'
def languages(self, obj):
lnk = '<a href="%s/?language=%s">%s</a>'
trans_list = [ (obj.pk, \
getattr(t, self.language_field), getattr(t, self.language_field).upper())
for t in getattr(translation_pool.annotate_with_translations(obj), 'translations') or []]
return ' '.join([lnk % t for t in trans_list])
languages.short_description = _('languages')
languages.allow_tags = True
def get_translation(self, request, obj):
language = get_language_from_request(request)
if obj:
get_kwargs = {
self.translation_of_field: obj,
self.language_field: language
}
try:
return self.translated_model.objects.get(**get_kwargs)
except:
return self.translated_model(**get_kwargs)
return self.translated_model(**{self.language_field: language})
def get_form(self, request, obj=None, **kwargs):
"""
Returns a Form class for use in the admin add view. This is used by
add_view and change_view.
"""
if self.declared_fieldsets:
fields = flatten_fieldsets(self.declared_fieldsets)
else:
fields = None
if self.exclude is None:
exclude = []
else:
exclude = list(self.exclude)
exclude.extend(kwargs.get("exclude", []))
exclude.extend(self.get_readonly_fields(request, obj))
# if exclude is an empty list we pass None to be consistant with the
# default on modelform_factory
exclude = exclude or None
defaults = {
"form": self.form,
"fields": fields,
"exclude": exclude,
"formfield_callback": curry(self.formfield_for_dbfield, request=request),
}
defaults.update(kwargs)
new_form = translation_modelform_factory(self.model, **defaults)
current_language = get_language_from_request(request)
translation_obj = self.get_translation(request, obj)
new_form.base_fields[self.language_field].widget = LanguageWidget(
translation_of_obj=obj,
translation_obj=translation_obj
)
new_form.base_fields[self.language_field].initial = current_language
return new_form
def save_translated_form(self, request, obj, form, change):
return form.child_form.save(commit=False)
def save_translated_model(self, request, obj, translation_obj, form, change):
setattr(translation_obj, self.translation_of_field, obj)
translation_obj.save()
def save_model(self, request, obj, form, change):
super(RealTranslationAdmin, self).save_model(request, obj, form, change)
if hasattr(form, 'child_form'):
translation_obj = self.save_translated_form(request, obj, form, change)
self.save_translated_model(request, obj, translation_obj, form, change)
def placeholder_plugin_filter(self, request, queryset):
language = get_language_from_request(request)
return queryset.filter(language=language)
def response_change(self, request, obj):
response = super(RealTranslationAdmin, self).response_change(request, obj)
language = get_language_from_request(request)
if response.status_code == 302 and response._headers['location'][1] == request.path:
location = response._headers['location']
response._headers['location'] = (location[0], "%s?language=%s" % (location[1], language))
return response
def response_add(self, request, obj, post_url_continue='../%s/'):
response = super(RealTranslationAdmin, self).response_add(request, obj, post_url_continue)
if request.POST.has_key("_continue"):
language = get_language_from_request(request)
location = response._headers['location']
response._headers['location'] = (location[0], "%s?language=%s" % (location[1], language))
return response
def delete_translation(self, request, object_id, extra_context=None):
language = get_language_from_request(request)
opts = self.model._meta
translationopts = self.translated_model._meta
app_label = translationopts.app_label
try:
obj = self.queryset(request).get(pk=unquote(object_id))
except self.model.DoesNotExist:
# Don't raise Http404 just yet, because we haven't checked
# permissions yet. We don't want an unauthenticated user to be able
# to determine whether a given object exists.
obj = None
if not self.has_delete_permission(request, obj):
raise PermissionDenied
if obj is None:
raise Http404(_('%(name)s object with primary key %(key)r does not exist.') % {'name': force_unicode(opts.verbose_name), 'key': escape(object_id)})
if not len(translation_pool.annotate_with_translations(obj).translations) > 1:
raise Http404(_('There only exists one translation for this page'))
translationobj = get_object_or_404(self.translated_model, **{self.translation_of_field + '__id': object_id, 'language': language})
if django.VERSION[1] > 2: # pragma: no cover
# WARNING: Django 1.3 is not officially supported yet!
using = router.db_for_read(self.model)
kwargs = {
'admin_site': self.admin_site,
'user': request.user,
'using': using
}
else:
kwargs = {
'admin_site': self.admin_site,
'user': request.user,
}
deleted_objects, perms_needed = get_deleted_objects([translationobj], translationopts, **kwargs)[:2]
if request.method == 'POST':
if perms_needed:
raise PermissionDenied
message = _('%(obj_name)s with language %(language)s was deleted') % {
'language': [name for code, name in settings.LANGUAGES if code == language][0], 'obj_name': force_unicode(translationopts.verbose_name)}
self.log_change(request, translationobj, message)
self.message_user(request, message)
translationobj.delete()
if not self.has_change_permission(request, None):
return HttpResponseRedirect("../../../../")
return HttpResponseRedirect("../../")
context = {
"title": _("Are you sure?"),
"object_name": force_unicode(translationopts.verbose_name),
"object": translationobj,
"deleted_objects": deleted_objects,
"perms_lacking": perms_needed,
"opts": translationopts,
"root_path": self.admin_site.root_path,
"app_label": app_label,
}
context.update(extra_context or {})
context_instance = RequestContext(request, current_app=self.admin_site.name)
return render_to_response(self.delete_confirmation_template or [
"admin/%s/%s/delete_confirmation.html" % (app_label, translationopts.object_name.lower()),
"admin/%s/delete_confirmation.html" % app_label,
"admin/delete_confirmation.html"
], context, context_instance=context_instance)
def render_change_form(self, request, context, add=False, change=False, form_url='', obj=None):
if not self.get_translation(request, obj).pk:
return super(RealTranslationAdmin, self).render_change_form(request, context, True, change, form_url, obj)
else:
return super(RealTranslationAdmin, self).render_change_form(request, context, add, change, form_url, obj)
def get_urls(self):
"""Get the admin urls"""
from django.conf.urls.defaults import patterns, url
info = "%s_%s" % (self.model._meta.app_label, self.model._meta.module_name)
pat = lambda regex, fn: url(regex, self.admin_site.admin_view(fn), name='%s_%s' % (info, fn.__name__))
url_patterns = patterns('',
pat(r'^([0-9]+)/delete-translation/$', self.delete_translation),
)
url_patterns = url_patterns + super(RealTranslationAdmin, self).get_urls()
return url_patterns
return RealTranslationAdmin
TranslationAdmin = make_translation_admin(admin.ModelAdmin)
if 'cms' in settings.INSTALLED_APPS:
from cms.admin.placeholderadmin import PlaceholderAdmin
PlaceholderTranslationAdmin = make_translation_admin(PlaceholderAdmin)