[devtools] make CubiwebTC.login() context-manager restore the testcase connection on exit
# copyright 2003-2010 LOGILAB S.A. (Paris, FRANCE), all rights reserved.
# contact http://www.logilab.fr/ -- mailto:contact@logilab.fr
#
# This file is part of CubicWeb.
#
# CubicWeb is free software: you can redistribute it and/or modify it under the
# terms of the GNU Lesser General Public License as published by the Free
# Software Foundation, either version 2.1 of the License, or (at your option)
# any later version.
#
# CubicWeb 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 Lesser General Public License for more
# details.
#
# You should have received a copy of the GNU Lesser General Public License along
# with CubicWeb. If not, see <http://www.gnu.org/licenses/>.
"""produces some Ontology Web Language schema and views
"""
__docformat__ = "restructuredtext en"
_ = unicode
from logilab.mtconverter import TransformError, xml_escape
from cubicweb.view import StartupView, EntityView
from cubicweb.selectors import none_rset, match_view
from cubicweb.web.action import Action
from cubicweb.web.views import schema
OWL_CARD_MAP = {'1': '<rdf:type rdf:resource="&owl;FunctionalProperty"/>',
'?': '<owl:maxCardinality rdf:datatype="&xsd;int">1</owl:maxCardinality>',
'+': '<owl:minCardinality rdf:datatype="&xsd;int">1</owl:minCardinality>',
'*': ''
}
OWL_TYPE_MAP = {'String': 'xsd:string',
'Datetime': 'xsd:dateTime',
'Bytes': 'xsd:byte',
'Float': 'xsd:float',
'Boolean': 'xsd:boolean',
'Int': 'xsd:int',
'Date':'xsd:date',
'Time': 'xsd:time',
'Password': 'xsd:byte',
'Decimal' : 'xsd:decimal',
'Interval': 'xsd:duration'
}
OWL_OPENING_ROOT = u'''<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE rdf:RDF [
<!ENTITY owl "http://www.w3.org/2002/07/owl#" >
<!ENTITY xsd "http://www.w3.org/2001/XMLSchema#" >
]>
<rdf:RDF xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
xmlns:rdfs="http://www.w3.org/2000/01/rdf-schema#"
xmlns:xsd="http://www.w3.org/2001/XMLSchema#"
xmlns:owl="http://www.w3.org/2002/07/owl#"
xmlns="http://logilab.org/owl/ontologies/%(appid)s#"
xmlns:%(appid)s="http://logilab.org/owl/ontologies/%(appid)s#"
xmlns:base="http://logilab.org/owl/ontologies/%(appid)s">
<owl:Ontology rdf:about="">
<rdfs:comment>
%(appid)s Cubicweb OWL Ontology
</rdfs:comment>
</owl:Ontology>'''
OWL_CLOSING_ROOT = u'</rdf:RDF>'
class OWLView(StartupView):
"""This view export in owl format schema database. It is the TBOX"""
__regid__ = 'owl'
title = _('owl')
templatable = False
content_type = 'application/xml' # 'text/xml'
def call(self, writeprefix=True):
skipmeta = int(self._cw.form.get('skipmeta', True))
if writeprefix:
self.w(OWL_OPENING_ROOT % {'appid': self._cw.vreg.schema.name})
self.visit_schema(skiptypes=skipmeta and schema.SKIP_TYPES or ())
if writeprefix:
self.w(OWL_CLOSING_ROOT)
def should_display_rschema(self, eschema, rschema, role):
return not rschema in self.skiptypes and (
rschema.may_have_permission('read', self._cw, eschema, role))
def visit_schema(self, skiptypes):
"""get a layout for a whole schema"""
self.skiptypes = skiptypes
entities = sorted(eschema for eschema in self._cw.vreg.schema.entities()
if not eschema.final or eschema in skiptypes)
self.w(u'<!-- classes definition -->')
for eschema in entities:
self.visit_entityschema(eschema)
self.w(u'<!-- property definition -->')
self.visit_property_schema(eschema)
self.w(u'<!-- datatype property -->')
self.visit_property_object_schema(eschema)
def visit_entityschema(self, eschema):
"""get a layout for an entity OWL schema"""
self.w(u'<owl:Class rdf:ID="%s">'% eschema)
self.w(u'<!-- relations -->')
for rschema, targetschemas, role in eschema.relation_definitions():
if not self.should_display_rschema(eschema, rschema, role):
continue
for oeschema in targetschemas:
card = rschema.role_rdef(eschema, oeschema, role).role_cardinality(role)
cardtag = OWL_CARD_MAP[card]
if cardtag:
self.w(u'''<rdfs:subClassOf>
<owl:Restriction>
<owl:onProperty rdf:resource="#%s"/>
%s
</owl:Restriction>
</rdfs:subClassOf>''' % (rschema, cardtag))
self.w(u'<!-- attributes -->')
for rschema, aschema in eschema.attribute_definitions():
if not self.should_display_rschema(eschema, rschema, 'subject'):
continue
self.w(u'''<rdfs:subClassOf>
<owl:Restriction>
<owl:onProperty rdf:resource="#%s"/>
<rdf:type rdf:resource="&owl;FunctionalProperty"/>
</owl:Restriction>
</rdfs:subClassOf>''' % rschema)
self.w(u'</owl:Class>')
def visit_property_schema(self, eschema):
"""get a layout for property entity OWL schema"""
for rschema, targetschemas, role in eschema.relation_definitions():
if not self.should_display_rschema(eschema, rschema, role):
continue
for oeschema in targetschemas:
self.w(u'''<owl:ObjectProperty rdf:ID="%s">
<rdfs:domain rdf:resource="#%s"/>
<rdfs:range rdf:resource="#%s"/>
</owl:ObjectProperty>''' % (rschema, eschema, oeschema.type))
def visit_property_object_schema(self, eschema):
for rschema, aschema in eschema.attribute_definitions():
if not self.should_display_rschema(eschema, rschema, 'subject'):
continue
self.w(u'''<owl:DatatypeProperty rdf:ID="%s">
<rdfs:domain rdf:resource="#%s"/>
<rdfs:range rdf:resource="%s"/>
</owl:DatatypeProperty>''' % (rschema, eschema, OWL_TYPE_MAP[aschema.type]))
class OWLABOXView(EntityView):
'''This view represents a part of the ABOX for a given entity.'''
__regid__ = 'owlabox'
title = _('owlabox')
templatable = False
content_type = 'application/xml' # 'text/xml'
def call(self):
self.w(OWL_OPENING_ROOT % {'appid': self._cw.vreg.schema.name})
for i in xrange(self.cw_rset.rowcount):
self.cell_call(i, 0)
self.w(OWL_CLOSING_ROOT)
def cell_call(self, row, col):
self.wview('owlaboxitem', self.cw_rset, row=row, col=col)
class OWLABOXItemView(EntityView):
'''This view represents a part of the ABOX for a given entity.'''
__regid__ = 'owlaboxitem'
templatable = False
content_type = 'application/xml' # 'text/xml'
def cell_call(self, row, col):
entity = self.cw_rset.complete_entity(row, col)
eschema = entity.e_schema
self.w(u'<%s rdf:ID="%s">' % (eschema, entity.eid))
self.w(u'<!--attributes-->')
for rschema, aschema in eschema.attribute_definitions():
if rschema.meta:
continue
rdef = rschema.rdef(eschema, aschema)
if not rdef.may_have_permission('read', self._cw):
continue
aname = rschema.type
if aname == 'eid':
continue
try:
attr = entity.printable_value(aname, format='text/plain')
if attr:
self.w(u'<%s>%s</%s>' % (aname, xml_escape(attr), aname))
except TransformError:
pass
self.w(u'<!--relations -->')
for rschema, targetschemas, role in eschema.relation_definitions():
if rschema.meta:
continue
for tschema in targetschemas:
rdef = rschema.role_rdef(eschema, tschema, role)
if rdef.may_have_permission('read', self._cw):
break
else:
# no read perms to any relation of this type. Skip.
continue
if role == 'object':
attr = 'reverse_%s' % rschema.type
else:
attr = rschema.type
for x in getattr(entity, attr):
self.w(u'<%s>%s %s</%s>' % (attr, x.__regid__, x.eid, attr))
self.w(u'</%s>'% eschema)
class DownloadOWLSchemaAction(Action):
__regid__ = 'download_as_owl'
__select__ = none_rset() & match_view('schema')
category = 'mainactions'
title = _('download schema as owl')
def url(self):
return self._cw.build_url('view', vid='owl')