fix optimisation with super session that may lead to integrity loss
at some point I've decided to stop ensuring ?1 cardinality was respected
when adding a new relation using a super session, to avoid the cost of
the delete query. That was yet discussable because it introduced unexpected
difference between execute and unsafe_execute, which is imo not worth it.
Also, now that rql() in migration script default to unsafe_execute, we
definitly don't want that implicit behaviour change (which already cause
bug when for instance adding another default workflow for an entity type:
without that fix we end up with *two* default workflows while the schema
tells we can have only one.
IMO we should go to the direction that super session skip all security
check, but nothing else, unless explicitly asked.
"""navigation components definition for CubicWeb web client
: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
"""
__docformat__ = "restructuredtext en"
_ = unicode
from logilab.mtconverter import xml_escape
from cubicweb.interfaces import IBreadCrumbs
from cubicweb.selectors import (one_line_rset, implements, one_etype_rset,
multi_lines_rset, any_rset)
from cubicweb.view import EntityView, Component
# don't use AnyEntity since this may cause bug with isinstance() due to reloading
from cubicweb.entity import Entity
from cubicweb import tags, uilib
class BreadCrumbEntityVComponent(Component):
__regid__ = 'breadcrumbs'
__select__ = one_line_rset() & implements(IBreadCrumbs, accept_none=False)
cw_property_defs = {
_('visible'): dict(type='Boolean', default=True,
help=_('display the component or not')),
}
title = _('contentnavigation_breadcrumbs')
help = _('contentnavigation_breadcrumbs_description')
separator = u' > '
link_template = u'<a href="%s">%s</a>'
def call(self, view=None, first_separator=True):
entity = self.cw_rset.get_entity(0, 0)
path = entity.breadcrumbs(view)
if path:
self.open_breadcrumbs()
if first_separator:
self.w(self.separator)
self.render_breadcrumbs(entity, path)
self.close_breadcrumbs()
def open_breadcrumbs(self):
self.w(u'<span id="breadcrumbs" class="pathbar">')
def close_breadcrumbs(self):
self.w(u'</span>')
def render_breadcrumbs(self, contextentity, path):
root = path.pop(0)
if isinstance(root, Entity):
self.w(self.link_template % (self._cw.build_url(root.__regid__),
root.dc_type('plural')))
self.w(self.separator)
self.wpath_part(root, contextentity, not path)
for i, parent in enumerate(path):
self.w(self.separator)
self.w(u"\n")
self.wpath_part(parent, contextentity, i == len(path) - 1)
def wpath_part(self, part, contextentity, last=False):
if isinstance(part, Entity):
if last and part.eid == contextentity.eid:
self.w(xml_escape(part.view('breadcrumbtext')))
else:
self.w(part.view('breadcrumbs'))
elif isinstance(part, tuple):
url, title = part
textsize = self._cw.property_value('navigation.short-line-size')
self.w(self.link_template % (
xml_escape(url), xml_escape(uilib.cut(title, textsize))))
else:
textsize = self._cw.property_value('navigation.short-line-size')
self.w(uilib.cut(unicode(part), textsize))
class BreadCrumbETypeVComponent(BreadCrumbEntityVComponent):
__select__ = multi_lines_rset() & one_etype_rset() & \
implements(IBreadCrumbs, accept_none=False)
def render_breadcrumbs(self, contextentity, path):
# XXX hack: only display etype name or first non entity path part
root = path.pop(0)
if isinstance(root, Entity):
self.w(u'<a href="%s">%s</a>' % (self._cw.build_url(root.__regid__),
root.dc_type('plural')))
else:
self.wpath_part(root, contextentity, not path)
class BreadCrumbAnyRSetVComponent(BreadCrumbEntityVComponent):
__select__ = any_rset()
def call(self, view=None, first_separator=True):
self.w(u'<span id="breadcrumbs" class="pathbar">')
if first_separator:
self.w(self.separator)
self.w(self._cw._('search'))
self.w(u'</span>')
class BreadCrumbView(EntityView):
__regid__ = 'breadcrumbs'
def cell_call(self, row, col):
entity = self.cw_rset.get_entity(row, col)
desc = xml_escape(uilib.cut(entity.dc_description(), 50))
# XXX remember camember : tags.a autoescapes !
self.w(tags.a(entity.view('breadcrumbtext'),
href=entity.absolute_url(), title=desc))
class BreadCrumbTextView(EntityView):
__regid__ = 'breadcrumbtext'
def cell_call(self, row, col):
entity = self.cw_rset.get_entity(row, col)
textsize = self._cw.property_value('navigation.short-line-size')
self.w(uilib.cut(entity.dc_title(), textsize))