[F] views: fix 2 unicode errors
1. You can now use valid unicode strings in ValidationError exception.
Previously, if 'err' contains unicode, UnicodeDecodeError was raised by format_errors()
>>> templstr = '<li>%s</li>\n'
>>> e = ValidationError(None, {None: u'oué, une exception en unicode!'})
>>> templstr % e
'<li>None (None): ou\xc3\xa9, une exception en unicode!</li>\n'
>>> templstr = u'<li>%s</li>\n'
>>> templstr % e
u'<li>None (None): ou\xe9, une exception en unicode!</li>\n'
2. The message of an Exception can contains unicode. But it now properly managed by “informal” string representation.
We can easily fix the problem by using the Exception.message attribute that still contains the original message.
>>> a = AssertionError(u'séfdsdf')
>>> a.message
u's\xe9fdsdf'
>>> str(a)
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
UnicodeEncodeError: 'ascii' codec can't encode character u'\xe9' in position 1: ordinal not in range(128)
>>> a = ValueError(u'fsdfsdéfsdfs')
>>> str(a)
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
UnicodeEncodeError: 'ascii' codec can't encode character u'\xe9' in position 6: ordinal not in range(128)
>>> a
ValueError(u'fsdfsd\xe9fsdfs',)
>>> unicode(a)
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
UnicodeEncodeError: 'ascii' codec can't encode character u'\xe9' in position 6: ordinal not in range(128)
>>> a.message
u'fsdfsd\xe9fsdfs'
"""some utilities to define schema permissions
:organization: Logilab
:copyright: 2008-2010 LOGILAB S.A. (Paris, FRANCE), all rights reserved.
:contact: http://www.logilab.fr/ -- mailto:contact@logilab.fr
"""
__docformat__ = "restructuredtext en"
from rql.utils import quote
from cubicweb.schema import RO_REL_PERMS, RO_ATTR_PERMS, \
PUB_SYSTEM_ENTITY_PERMS, PUB_SYSTEM_REL_PERMS, \
ERQLExpression, RRQLExpression
# permissions for "meta" entity type (readable by anyone, can only be
# added/deleted by managers)
META_ETYPE_PERMS = PUB_SYSTEM_ENTITY_PERMS # XXX deprecates
# permissions for "meta" relation type (readable by anyone, can only be
# added/deleted by managers)
META_RTYPE_PERMS = PUB_SYSTEM_REL_PERMS # XXX deprecates
# permissions for relation type that should only set by hooks using unsafe
# execute, readable by anyone
HOOKS_RTYPE_PERMS = RO_REL_PERMS # XXX deprecates
def _perm(names):
if isinstance(names, (list, tuple)):
if len(names) == 1:
names = quote(names[0])
else:
names = 'IN (%s)' % (','.join(quote(name) for name in names))
else:
names = quote(names)
#return u' require_permission P, P name %s, U in_group G, P require_group G' % names
return u' require_permission P, P name %s, U has_group_permission P' % names
def xperm(*names):
return 'X' + _perm(names)
def xexpr(*names):
return ERQLExpression(xperm(*names))
def xrexpr(relation, *names):
return ERQLExpression('X %s Y, Y %s' % (relation, _perm(names)))
def xorexpr(relation, etype, *names):
return ERQLExpression('Y %s X, X is %s, Y %s' % (relation, etype, _perm(names)))
def sexpr(*names):
return RRQLExpression('S' + _perm(names), 'S')
def restricted_sexpr(restriction, *names):
rql = '%s, %s' % (restriction, 'S' + _perm(names))
return RRQLExpression(rql, 'S')
def restricted_oexpr(restriction, *names):
rql = '%s, %s' % (restriction, 'O' + _perm(names))
return RRQLExpression(rql, 'O')
def oexpr(*names):
return RRQLExpression('O' + _perm(names), 'O')
# def supdate_perm():
# return RRQLExpression('U has_update_permission S', 'S')
# def oupdate_perm():
# return RRQLExpression('U has_update_permission O', 'O')
def relxperm(rel, role, *names):
assert role in ('subject', 'object')
if role == 'subject':
zxrel = ', X %s Z' % rel
else:
zxrel = ', Z %s X' % rel
return 'Z' + _perm(names) + zxrel
def relxexpr(rel, role, *names):
return ERQLExpression(relxperm(rel, role, *names))