/usr/share/pyshared/DjangoLint/AstCheckers/utils.py is in python-django-lint 0.13-2.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 | # -*- coding: utf-8 -*-
# django-lint -- Static analysis tool for Django projects and applications
# Copyright (C) 2008-2009 Chris Lamb <chris@chris-lamb.co.uk>
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program 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 General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
from logilab import astng
from itertools import chain
from pylint.checkers.utils import safe_infer
def is_model(node, check_base_classes=True):
if not isinstance(node, astng.Class):
return False
for base in node.bases:
val = safe_infer(base)
if not val:
continue
nodes = [val]
if check_base_classes:
try:
nodes = chain([val], val.ancestors())
except TypeError:
pass
for node in nodes:
qual = '%s.%s' % (node.root().name, node.name)
if qual == 'django.db.models.base.Model':
return True
return False
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