[forms] fix form_needs_multipart implementation
problem
-------
The current implementation of form_needs_multipart goes down
recursively in all inlined forms to check if one of them needs
a multipart enctype.
If we have a relation definition as X part_of X, the previous
implementation potentially lead to an infinite recursion
"""Set of HTML errors views. Error view are generally implemented
as startup views and are used for standard error pages (404, 500, etc.)
:organization: Logilab
:copyright: 2001-2009 LOGILAB S.A. (Paris, FRANCE), license is LGPL v2.
:contact: http://www.logilab.fr/ -- mailto:contact@logilab.fr
:license: GNU Lesser General Public License, v2.1 - http://www.gnu.org/licenses
"""
__docformat__ = "restructuredtext en"
from cubicweb.view import StartupView
class FourOhFour(StartupView):
id = '404'
def call(self):
_ = self.req._
self.w(u"<h1>%s</h1>" % _('this resource does not exist'))
class ErrorOccured(StartupView):
id = '500'
def call(self):
_ = self.req._
self.w(u"<h1>%s</h1>" %
_('an error occured, the request cannot be fulfilled'))