[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'
"""
:organization: Logilab
:copyright: 2001-2010 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
"""
class Schema :
def __init__(self, schema) :
self._schema = schema
def get_attrs(self, entity) :
return self._schema[entity][0]
def get_relations(self, entity) :
return self._schema[entity][1]
def get_attr_index(self, entity, attr) :
return list(self._schema[entity][0]).index(attr)
SCHEMA = Schema({'societe': ( ('nom','ville'),
[('concerne_par','affaire'),
] ),
'affaire': ( ('ref',),
[('concerne','societe'),
('concerne_par', 'document')
] ),
'document':( ('fichier', 'annee','mois','jour','type'),
[('concerne','affaire'),
] ),
})
DATA = { 'societe': [ ('CETIAD', 'Dijon'),
('EDF_R&D', 'Clamart'),
('Logilab', 'Paris'),
],
'affaire': [ ('CTIA01', 'CETIAD'),
('EDFR01', 'EDF_R&D'),
('EDFR02', 'EDF_R&D'),
],
'document':[ ('CTIA01-040906-PRE-1-01.pdf','2004','09','06','PRE','CTIA01'),
('EDFR01-050201-CLI-1-01.pdf','2005','02','01','CLI','EDFR01'),
('EDFR01-050322-OFR-1-01.pdf','2005','03','22','OFR','EDFR01'),
],
}
def get_data(entity, where=[]) :
for value in DATA[entity] :
for index, val in where :
if value[index] != val :
break
else :
yield value
class PathParser :
def __init__(self, schema, path) :
self.schema = schema
self.path = path
self._components = iter([comp for comp in self.path.split('/') if comp])
self._entity = None
self._attr = None
self._rel = None
self._restrictions = []
def parse(self) :
self._entity = self._components.next()
try:
self.process_entity()
except StopIteration :
pass
def process_entity(self) :
_next = self._components.next()
if _next in self.schema.get_attrs(self._entity) :
self._attr = _next
_next = self._components.next()
self._restrictions.append( (self._entity, self._attr, _next) )
self._attr = None
self._rel = None
self.process_entity()
def get_list(self) :
if self._rel :
return
elif self._attr :
where = []
for e,a,v in self._restrictions :
i = self.schema.get_attr_index(e, a)
where.append( (i,v) )
i = self.schema.get_attr_index(self._entity, self._attr)
for values in get_data(self._entity,where) :
yield values[i]+'/'
else :
attr_restrict = [a for e,a,v in self._restrictions]
for attr in self.schema.get_attrs(self._entity) :
if attr not in attr_restrict :
yield attr+'/'
for data in DATA[self._entity]:
yield data[0]
for nom, entity in self.schema.get_relations(self._entity) :
yield nom+'/'
yield entity+'/'
def ls(path) :
p = PathParser(SCHEMA,path)
p.parse()
return list(p.get_list())
class SytPathParser :
def __init__(self, schema, path) :
self.schema = schema
self.path = path
self._components = iter([comp for comp in self.path.split('/') if comp])
self._e_type = None
self._restrictions = []
self._alphabet = list('ABCDEFGHIJKLMNOPQRSTUVWXYZ')
def parse(self):
self._var = self._alphabet.pop(0)
self._e_type = self._components.next()
e_type = self._e_type.capitalize()
self._restrictions.append('%s is %s' % (self._var, e_type))
try:
self.process_entity()
except StopIteration :
pass
return 'Any %s WHERE %s' % (self._var, ', '.join(self._restrictions))
def process_entity(self) :
_next = self._components.next()
if _next in self.schema.get_attrs(self._e_type) :
attr = _next
try:
_next = self._components.next()
self._restrictions.append('%s %s %s' % (self._var, attr, _next))
except StopIteration:
a_var = self._alphabet.pop(0)
self._restrictions.append('%s %s %s' % (self._var, attr, a_var) )
self._var = a_var
raise
elif _next in [r for r,e in self.schema.get_relations(self._e_type)]:
rel = _next
r_var = self._alphabet.pop(0)
self._restrictions.append('%s %s %s' % (self._var, rel, r_var))
self._var = r_var
try:
_next = self._components.next()
self._restrictions.append('%s is %s' % (r_var, _next.capitalize()))
except StopIteration:
raise
self.process_entity()
def to_rql(path) :
p = SytPathParser(SCHEMA,path)
return p.parse()