first draft for a simple hooks based custom attribute storage,
with a BytesFileSystemStorage POC implementation.
Basically:
* a dictionary contains maps from which attribute of which entity types are
mapped to which custom storage
* hooks check for one of these entity type being added/modified/deleted
* read is based on the sql generator callback mecanism (used in vcsfile for
instance)
* all storages have the same basic interface (read, add, update, delete),
and should be pluggable in a transparent way (except at migration time
when one want to change from a storage to another)
* the sample BytesFileSystemStorage:
* may store Bytes attributes content of any entity type as file on the file system
* is based on one FSPATH rql/sql function and another _fsopen only available in sql
* has a dumb file name allocation algorithm
"""
: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
"""
from cubicweb.devtools import init_test_database
from cubicweb.devtools.repotest import BasePlannerTC, test_plan
from cubicweb.server.ssplanner import SSPlanner
# keep cnx so it's not garbage collected and the associated session closed
repo, cnx = init_test_database()
class SSPlannerTC(BasePlannerTC):
repo = repo
_test = test_plan
def setUp(self):
BasePlannerTC.setUp(self)
self.planner = SSPlanner(self.o.schema, self.repo.vreg.rqlhelper)
self.system = self.o._repo.system_source
def tearDown(self):
BasePlannerTC.tearDown(self)
def test_ordered_ambigous_sol(self):
self._test('Any XN ORDERBY XN WHERE X name XN, X is IN (Basket, State, Folder)',
[('OneFetchStep', [('Any XN ORDERBY XN WHERE X name XN, X is IN(Basket, State, Folder)',
[{'X': 'Basket', 'XN': 'String'},
{'X': 'State', 'XN': 'String'},
{'X': 'Folder', 'XN': 'String'}])],
None, None,
[self.system], None, [])])
def test_groupeded_ambigous_sol(self):
self._test('Any XN,COUNT(X) GROUPBY XN WHERE X name XN, X is IN (Basket, State, Folder)',
[('OneFetchStep', [('Any XN,COUNT(X) GROUPBY XN WHERE X name XN, X is IN(Basket, State, Folder)',
[{'X': 'Basket', 'XN': 'String'},
{'X': 'State', 'XN': 'String'},
{'X': 'Folder', 'XN': 'String'}])],
None, None,
[self.system], None, [])])
if __name__ == '__main__':
from logilab.common.testlib import unittest_main
unittest_main()