def available_language(node, value):
"""Checks that given language is available
"""
try:
get_language_title(value)
except UnknownLocaleError:
raise Invalid(node,
_(u"${lang} is not a valid language",
mapping={'lang': value}))
def addable(self, context, request):
"""
In addition to the restrictions of
:func:`kotti.resources.TypeInfo.addable`, a LanguageRoot must not be
added within a parent that already has a language set.
"""
if hasattr(context, 'language') and context.language:
return False
return super(LanguageRootTypeInfo, self).addable(context, request)
type_info = LanguageRootTypeInfo(
name=u'LanguageRoot',
title=_(u'Language root'),
add_view=u'add_language_root',
addable_to=Document.type_info.addable_to,
edit_links=Document.type_info.edit_links,
selectable_default_views=Document.type_info.selectable_default_views
)
class LanguageRoot(Document):
""" Root for a language specific subtree. """
implements(IDefaultWorkflow, INavigationRoot)
id = Column(
Integer(),
ForeignKey('documents.id'),
