weboob-devel/weboob/tools/application/results.py
2011-04-08 12:48:07 +02:00

74 lines
2.5 KiB
Python

# -*- coding: utf-8 -*-
# Copyright(C) 2010-2011 Christophe Benz
#
# This file is part of weboob.
#
# weboob is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# weboob is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU Affero General Public License for more details.
#
# You should have received a copy of the GNU Affero General Public License
# along with weboob. If not, see <http://www.gnu.org/licenses/>.
from weboob.core.bcall import IResultsCondition, ResultsConditionError
__all__ = ['ResultsCondition', 'ResultsConditionError']
class ResultsCondition(IResultsCondition):
condition_str = None
def __init__(self, condition_str):
condition_str = condition_str.replace(' OR ', ' or ') \
.replace(' AND ', ' and ') \
.replace(' NOT ', ' not ')
or_list = []
for _or in condition_str.split(' or '):
and_dict = {}
for _and in _or.split(' and '):
if '!=' in _and:
k, v = _and.split('!=')
k = k.strip() + '!'
elif '=' in _and:
k, v = _and.split('=')
else:
raise ResultsConditionError(u'Could not find = or != operator in sub-expression "%s"' % _and)
and_dict[k.strip()] = v.strip()
or_list.append(and_dict)
self.condition = or_list
self.condition_str = condition_str
def is_valid(self, obj):
d = dict(obj.iter_fields())
for _or in self.condition:
for k, v in _or.iteritems():
if k.endswith('!'):
k = k[:-1]
different = True
else:
different = False
if k in d:
if different:
if d[k] == v:
return False
else:
if d[k] != v:
return False
else:
raise ResultsConditionError(u'Field "%s" is not valid.' % k)
return True
def __str__(self):
return unicode(self).encode('utf-8')
def __unicode__(self):
return self.condition_str