refactor session_key (__errorurl) to handle cases where the form is generated throuhg an ajax call: in case of an entity form, return the entity's absolute url. Also allow to force session key value
"""various library content hooks
:organization: Logilab
:copyright: 2001-2009 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
"""
__docformat__ = "restructuredtext en"
from datetime import datetime
from cubicweb import RepositoryError
from cubicweb.common.uilib import soup2xhtml
from cubicweb.server.hooksmanager import Hook
from cubicweb.server.pool import PreCommitOperation
class SetModificationDateOnStateChange(Hook):
"""update entity's modification date after changing its state"""
events = ('after_add_relation',)
accepts = ('in_state',)
def call(self, session, fromeid, rtype, toeid):
if fromeid in session.transaction_data.get('neweids', ()):
# new entity, not needed
return
entity = session.entity_from_eid(fromeid)
try:
entity.set_attributes(modification_date=datetime.now(),
_cw_unsafe=True)
except RepositoryError, ex:
# usually occurs if entity is coming from a read-only source
# (eg ldap user)
self.warning('cant change modification date for %s: %s', entity, ex)
class AddUpdateCWUserHook(Hook):
"""ensure user logins are stripped"""
events = ('before_add_entity', 'before_update_entity',)
accepts = ('CWUser',)
def call(self, session, entity):
if 'login' in entity and entity['login']:
entity['login'] = entity['login'].strip()
class AutoDeleteBookmark(PreCommitOperation):
beid = None # make pylint happy
def precommit_event(self):
session = self.session
if not self.beid in session.transaction_data.get('pendingeids', ()):
if not session.unsafe_execute('Any X WHERE X bookmarked_by U, X eid %(x)s',
{'x': self.beid}, 'x'):
session.unsafe_execute('DELETE Bookmark X WHERE X eid %(x)s',
{'x': self.beid}, 'x')
class DelBookmarkedByHook(Hook):
"""ensure user logins are stripped"""
events = ('after_delete_relation',)
accepts = ('bookmarked_by',)
def call(self, session, subj, rtype, obj):
AutoDeleteBookmark(session, beid=subj)
class TidyHtmlFields(Hook):
"""tidy HTML in rich text strings"""
events = ('before_add_entity', 'before_update_entity')
accepts = ('Any',)
def call(self, session, entity):
if session.is_super_session:
return
metaattrs = entity.e_schema.meta_attributes()
for metaattr, (metadata, attr) in metaattrs.iteritems():
if metadata == 'format':
try:
value = entity[attr]
except KeyError:
continue # no text to tidy
if isinstance(value, unicode): # filter out None and Binary
if self.event == 'before_add_entity':
fmt = entity.get(metaattr)
else:
fmt = entity.get_value(metaattr)
if fmt == 'text/html':
entity[attr] = soup2xhtml(value, session.encoding)