[web] put a fake object that raise Unauthorized on any attribute access as req.cnx and req._user, so we are properly asked to authenticated on any view that tries to do something with one of those attributes (instead of doing defensive programming everywhere we're doing that)
"""Specific views for schema related entities
: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"
from itertools import cycle
from logilab.common.ureports import Section, Table
from logilab.mtconverter import xml_escape
from yams import BASE_TYPES, schema2dot as s2d
from yams.buildobjs import DEFAULT_ATTRPERMS
from cubicweb.selectors import (implements, yes, match_user_groups,
has_related_entities, authenticated_user)
from cubicweb.schema import (META_RTYPES, SCHEMA_TYPES, SYSTEM_RTYPES,
WORKFLOW_TYPES, INTERNAL_TYPES)
from cubicweb.view import EntityView, StartupView
from cubicweb import tags, uilib
from cubicweb.web import action, facet, uicfg, schemaviewer
from cubicweb.web.views import TmpFileViewMixin
from cubicweb.web.views import primary, baseviews, tabs, tableview, iprogress
ALWAYS_SKIP_TYPES = BASE_TYPES | SCHEMA_TYPES
SKIP_TYPES = (ALWAYS_SKIP_TYPES | META_RTYPES | SYSTEM_RTYPES | WORKFLOW_TYPES
| INTERNAL_TYPES)
SKIP_TYPES.update(set(('CWUser', 'CWGroup')))
def skip_types(req):
if int(req.form.get('skipmeta', True)):
return SKIP_TYPES
return ALWAYS_SKIP_TYPES
_pvs = uicfg.primaryview_section
_pvdc = uicfg.primaryview_display_ctrl
for _action in ('read', 'add', 'update', 'delete'):
_pvs.tag_subject_of(('*', '%s_permission' % _action, '*'), 'hidden')
_pvs.tag_object_of(('*', '%s_permission' % _action, '*'), 'hidden')
for _etype in ('CWEType', 'CWRType', 'CWAttribute', 'CWRelation'):
_pvdc.tag_attribute((_etype, 'description'), {'showlabel': False})
_pvs.tag_attribute(('CWEType', 'name'), 'hidden')
_pvs.tag_attribute(('CWEType', 'final'), 'hidden')
_pvs.tag_object_of(('*', 'workflow_of', 'CWEType'), 'hidden')
_pvs.tag_subject_of(('CWEType', 'default_workflow', '*'), 'hidden')
_pvs.tag_object_of(('*', 'specializes', 'CWEType'), 'hidden')
_pvs.tag_subject_of(('CWEType', 'specializes', '*'), 'hidden')
_pvs.tag_object_of(('*', 'from_entity', 'CWEType'), 'hidden')
_pvs.tag_object_of(('*', 'to_entity', 'CWEType'), 'hidden')
_pvs.tag_attribute(('CWRType', 'name'), 'hidden')
_pvs.tag_attribute(('CWRType', 'final'), 'hidden')
_pvs.tag_object_of(('*', 'relation_type', 'CWRType'), 'hidden')
_pvs.tag_subject_of(('CWAttribute', 'constrained_by', '*'), 'hidden')
_pvs.tag_subject_of(('CWRelation', 'constrained_by', '*'), 'hidden')
class SecurityViewMixIn(object):
"""mixin providing methods to display security information for a entity,
relation or relation definition schema
"""
def permissions_table(self, erschema, permissions=None):
self._cw.add_css('cubicweb.acl.css')
w = self.w
_ = self._cw._
w(u'<table class="schemaInfo">')
w(u'<tr><th>%s</th><th>%s</th><th>%s</th></tr>' % (
_("permission"), _('granted to groups'), _('rql expressions')))
for action in erschema.ACTIONS:
w(u'<tr><td>%s</td><td>' % _(action))
if permissions is None:
groups = erschema.get_groups(action)
rqlexprs = sorted(e.expression for e in erschema.get_rqlexprs(action))
else:
groups = permissions[action][0]
rqlexprs = permissions[action][1]
# XXX get group entity and call it's incontext view
groups = [u'<a class="%s" href="%s">%s</a>' % (
group, self._cw.build_url('cwgroup/%s' % group), label)
for group, label in sorted((_(g), g) for g in groups)]
w(u'<br/>'.join(groups))
w(u'</td><td>')
w(u'<br/>'.join(rqlexprs))
w(u'</td></tr>\n')
w(u'</table>')
def grouped_permissions_table(self, rschema):
# group relation definitions with identical permissions
perms = {}
for rdef in rschema.rdefs.itervalues():
rdef_perms = []
for action in ('read', 'add', 'delete'):
groups = sorted(rdef.get_groups(action))
exprs = sorted(e.expression for e in rdef.get_rqlexprs(action))
rdef_perms.append( (action, (tuple(groups), tuple(exprs))) )
rdef_perms = tuple(rdef_perms)
if rdef_perms in perms:
perms[rdef_perms].append( (rdef.subject, rdef.object) )
else:
perms[rdef_perms] = [(rdef.subject, rdef.object)]
# set layout permissions in a table for each group of relation
# definition
w = self.w
w(u'<div style="margin: 0px 1.5em">')
tmpl = u'<strong>%s</strong> %s <strong>%s</strong>'
for perm, rdefs in perms.iteritems():
w(u'<div>%s</div>' % u', '.join(
tmpl % (_(s.type), _(rschema.type), _(o.type)) for s, o in rdefs))
# accessing rdef from previous loop by design: only used to get
# ACTIONS
self.permissions_table(rdef, dict(perm))
w(u'</div>')
# global schema view ###########################################################
class SchemaView(tabs.TabsMixin, StartupView):
"""display schema information (graphically, listing tables...) in tabs"""
__regid__ = 'schema'
title = _('instance schema')
tabs = [_('schema-image'), _('schema-entity-types'),
_('schema-relation-types'), _('schema-security')]
default_tab = 'schema-image'
def call(self):
self.w(u'<h1>%s</h1>' % _('Schema of the data model'))
self.render_tabs(self.tabs, self.default_tab)
class SchemaImageTab(StartupView):
__regid__ = 'schema-image'
def call(self):
self.w(_(u'<div>This schema of the data model <em>excludes</em> the '
u'meta-data, but you can also display a <a href="%s">complete '
u'schema with meta-data</a>.</div>')
% xml_escape(self._cw.build_url('view', vid='schemagraph', skipmeta=0)))
self.w(u'<div><a href="%s">%s</a></div>' %
(self._cw.build_url('view', vid='owl'),
self._cw._(u'Download schema as OWL')))
self.w(u'<img src="%s" alt="%s"/>\n' % (
xml_escape(self._cw.build_url('view', vid='schemagraph', skipmeta=1)),
self._cw._("graphical representation of the instance'schema")))
class SchemaETypeTab(StartupView):
__regid__ = 'schema-entity-types'
def call(self):
self.wview('table', self._cw.execute(
'Any X ORDERBY N WHERE X is CWEType, X name N, X final FALSE'))
class SchemaRTypeTab(StartupView):
__regid__ = 'schema-relation-types'
def call(self):
self.wview('table', self._cw.execute(
'Any X ORDERBY N WHERE X is CWRType, X name N, X final FALSE'))
class SchemaPermissionsTab(SecurityViewMixIn, StartupView):
__regid__ = 'schema-security'
__select__ = StartupView.__select__ & match_user_groups('managers')
def call(self, display_relations=True):
skiptypes = skip_types(self._cw)
schema = self._cw.vreg.schema
# compute entities
entities = sorted(eschema for eschema in schema.entities()
if not (eschema.final or eschema in skiptypes))
# compute relations
if display_relations:
relations = sorted(rschema for rschema in schema.relations()
if not (rschema.final
or rschema in skiptypes
or rschema in META_RTYPES))
else:
relations = []
# index
_ = self._cw._
url = xml_escape(self._cw.build_url('schema'))
self.w(u'<div id="schema_security">')
self.w(u'<h2 class="schema">%s</h2>' % _('Index'))
self.w(u'<h4 id="entities">%s</h4>' % _('Entity types'))
ents = []
for eschema in sorted(entities):
ents.append(u'<a class="grey" href="%s#%s">%s</a>' % (
url, eschema.type, eschema.type))
self.w(u', '.join(ents))
self.w(u'<h4 id="relations">%s</h4>' % _('Relation types'))
rels = []
for rschema in sorted(relations):
rels.append(u'<a class="grey" href="%s#%s">%s</a>' % (
url , rschema.type, rschema.type))
self.w(u', '.join(rels))
# permissions tables
self.display_entities(entities)
if relations:
self.display_relations(relations)
self.w(u'</div>')
def has_non_default_perms(self, rdef):
"""return true if the given *attribute* relation definition has custom
permission
"""
for action in rdef.ACTIONS:
def_rqlexprs = []
def_groups = []
for perm in DEFAULT_ATTRPERMS[action]:
if not isinstance(perm, basestring):
def_rqlexprs.append(perm.expression)
else:
def_groups.append(perm)
rqlexprs = [rql.expression for rql in rdef.get_rqlexprs(action)]
groups = rdef.get_groups(action)
if groups != frozenset(def_groups) or \
frozenset(rqlexprs) != frozenset(def_rqlexprs):
return True
return False
def display_entities(self, entities):
_ = self._cw._
url = xml_escape(self._cw.build_url('schema'))
self.w(u'<h2 id="entities" class="schema">%s</h2>' % _('Permissions for entity types'))
for eschema in entities:
self.w(u'<h3 id="%s" class="schema"><a href="%s">%s (%s)</a> ' % (
eschema.type, self._cw.build_url('cwetype/%s' % eschema.type),
eschema.type, _(eschema.type)))
self.w(u'<a href="%s#schema_security"><img src="%s" alt="%s"/></a>' % (
url, self._cw.external_resource('UP_ICON'), _('up')))
self.w(u'</h3>')
self.w(u'<div style="margin: 0px 1.5em">')
self.permissions_table(eschema)
# display entity attributes only if they have some permissions modified
modified_attrs = []
for attr, etype in eschema.attribute_definitions():
rdef = eschema.rdef(attr)
if attr not in META_RTYPES and self.has_non_default_perms(rdef):
modified_attrs.append(rdef)
if modified_attrs:
self.w(u'<h4>%s</h4>' % _('Attributes with non default permissions:'))
self.w(u'</div>')
self.w(u'<div style="margin: 0px 6em">')
for rdef in modified_attrs:
attrtype = str(rdef.rtype)
self.w(u'<h4 class="schema">%s (%s)</h4> ' % (attrtype, _(attrtype)))
self.permissions_table(rdef)
self.w(u'</div>')
def display_relations(self, relations):
_ = self._cw._
url = xml_escape(self._cw.build_url('schema'))
self.w(u'<h2 id="relations" class="schema">%s</h2>' % _('Permissions for relations'))
for rschema in relations:
self.w(u'<h3 id="%s" class="schema"><a href="%s">%s (%s)</a> ' % (
rschema.type, self._cw.build_url('cwrtype/%s' % rschema.type),
rschema.type, _(rschema.type)))
self.w(u'<a href="%s#schema_security"><img src="%s" alt="%s"/></a>' % (
url, self._cw.external_resource('UP_ICON'), _('up')))
self.w(u'</h3>')
self.grouped_permissions_table(rschema)
# CWEType ######################################################################
# register msgid generated in entity relations tables
_('i18ncard_1'), _('i18ncard_?'), _('i18ncard_+'), _('i18ncard_*')
class CWETypePrimaryView(tabs.TabbedPrimaryView):
__select__ = implements('CWEType')
tabs = [_('cwetype-description'), _('cwetype-box'), _('cwetype-workflow'),
_('cwetype-views'), _('cwetype-permissions')]
default_tab = 'cwetype-description'
class CWETypeDescriptionTab(tabs.PrimaryTab):
__regid__ = 'cwetype-description'
__select__ = tabs.PrimaryTab.__select__ & implements('CWEType')
def render_entity_attributes(self, entity):
super(CWETypeDescriptionTab, self).render_entity_attributes(entity)
_ = self._cw._
# inheritance
if entity.specializes:
self.w(u'<div>%s' % _('Parent classes:'))
self.wview('csv', entity.related('specializes', 'subject'))
self.w(u'</div>')
if entity.reverse_specializes:
self.w(u'<div>%s' % _('Sub-classes:'))
self.wview('csv', entity.related('specializes', 'object'))
self.w(u'</div>')
# entity schema image
self.w(u'<img src="%s" alt="%s"/>' % (
xml_escape(entity.absolute_url(vid='schemagraph')),
xml_escape(_('graphical schema for %s') % entity.name)))
# entity schema attributes
self.w(u'<h2>%s</h2>' % _('CWAttribute_plural'))
rset = self._cw.execute(
'Any A,ON,D,C,A,DE,A, IDX,FTI,I18N,R,O,RN,S ORDERBY AA '
'WHERE A is CWAttribute, A from_entity S, S eid %(x)s, '
'A ordernum AA, A defaultval D, A description DE, A cardinality C, '
'A fulltextindexed FTI, A internationalizable I18N, A indexed IDX, '
'A relation_type R, R name RN, A to_entity O, O name ON',
{'x': entity.eid})
self.wview('table', rset, 'null',
cellvids={0: 'rdef-name-cell',
3: 'etype-attr-cardinality-cell',
4: 'rdef-constraints-cell',
6: 'rdef-options-cell'},
headers=(_(u'name'), _(u'type'),
_(u'default value'), _(u'required'),
_(u'constraints'), _(u'description'), _('options')))
# entity schema relations
self.w(u'<h2>%s</h2>' % _('CWRelation_plural'))
cellvids = {0: 'rdef-name-cell',
2: 'etype-rel-cardinality-cell',
3: 'rdef-constraints-cell',
4: 'rdef-options-cell'}
headers= [_(u'name'), _(u'object type'), _(u'cardinality'),
_(u'constraints'), _(u'options')]
rset = self._cw.execute(
'Any A,TT,"i18ncard_"+SUBSTRING(C,1,1),A,A, K,TTN,R,RN ORDERBY RN '
'WHERE A is CWRelation, A from_entity S, S eid %(x)s, '
'A composite K, A cardinality C, '
'A relation_type R, R name RN, A to_entity TT, TT name TTN',
{'x': entity.eid})
if rset:
self.w(u'<h5>%s %s</h5>' % (entity.name, _('is subject of:')))
self.wview('table', rset, cellvids=cellvids, headers=headers)
rset = self._cw.execute(
'Any A,TT,"i18ncard_"+SUBSTRING(C,1,1),A,A, K,TTN,R,RN ORDERBY RN '
'WHERE A is CWRelation, A to_entity O, O eid %(x)s, '
'A composite K, A cardinality C, '
'A relation_type R, R name RN, A from_entity TT, TT name TTN',
{'x': entity.eid})
if rset:
cellvids[0] = 'rdef-object-name-cell'
headers[1] = _(u'subject type')
self.w(u'<h5>%s %s</h5>' % (entity.name, _('is object of:')))
self.wview('table', rset, cellvids=cellvids, headers=headers)
class CWETypeAttributeCardinalityCell(baseviews.FinalView):
__regid__ = 'etype-attr-cardinality-cell'
def cell_call(self, row, col):
if self.cw_rset.rows[row][col][0] == '1':
self.w(self._cw._(u'yes'))
else:
self.w(self._cw._(u'no'))
class CWETypeRelationCardinalityCell(baseviews.FinalView):
__regid__ = 'etype-rel-cardinality-cell'
def cell_call(self, row, col):
self.w(self._cw._(self.cw_rset.rows[row][col]))
class CWETypeBoxTab(EntityView):
__regid__ = 'cwetype-box'
__select__ = implements('CWEType')
def cell_call(self, row, col):
viewer = schemaviewer.SchemaViewer(self._cw)
entity = self.cw_rset.get_entity(row, col)
eschema = self._cw.vreg.schema.eschema(entity.name)
layout = viewer.visit_entityschema(eschema)
self.w(uilib.ureport_as_html(layout))
self.w(u'<br class="clear"/>')
class CWETypePermTab(SecurityViewMixIn, EntityView):
__regid__ = 'cwetype-permissions'
__select__ = implements('CWEType') & authenticated_user()
def cell_call(self, row, col):
entity = self.cw_rset.get_entity(row, col)
eschema = self._cw.vreg.schema.eschema(entity.name)
self.w(u'<h4>%s</h4>' % _('This entity type permissions:').capitalize())
self.permissions_table(eschema)
self.w(u'<div style="margin: 0px 1.5em">')
self.w(u'<h4>%s</h4>' % _('Attributes permissions:').capitalize())
for attr, etype in eschema.attribute_definitions():
if attr not in META_RTYPES:
rdef = eschema.rdef(attr)
attrtype = str(rdef.rtype)
self.w(u'<h4 class="schema">%s (%s)</h4> ' % (attrtype, _(attrtype)))
self.permissions_table(rdef)
self.w(u'</div>')
class CWETypeWorkflowTab(EntityView):
__regid__ = 'cwetype-workflow'
__select__ = (implements('CWEType')
& has_related_entities('workflow_of', 'object'))
def cell_call(self, row, col):
entity = self.cw_rset.get_entity(row, col)
if entity.default_workflow:
wf = entity.default_workflow[0]
if len(entity.reverse_workflow_of) > 1:
self.w(u'<h1>%s (%s)</h1>'
% (wf.name, self._cw._('default_workflow')))
self.display_workflow(wf)
defaultwfeid = wf.eid
else:
self.w(u'<div class="error">%s</div>'
% self._cw._('There is no default workflow'))
defaultwfeid = None
for altwf in entity.reverse_workflow_of:
if altwf.eid == defaultwfeid:
continue
self.w(u'<h1>%s</h1>' % altwf.name)
self.display_workflow(altwf)
def display_workflow(self, wf):
self.w(wf.view('wfgraph'))
self.w('<a href="%s">%s</a>' % (
wf.absolute_url(), self._cw._('more info about this workflow')))
class CWETypeViewsTab(EntityView):
"""possible views for this entity type"""
__regid__ = 'cwetype-views'
__select__ = EntityView.__select__ & implements('CWEType')
def cell_call(self, row, col):
entity = self.cw_rset.get_entity(row, col)
_ = self._cw._
self.w('<div>%s</div>' % _('Non exhaustive list of views that may '
'apply to entities of this type'))
views = [(view.content_type, view.__regid__, _(view.title))
for view in self.possible_views(entity.name)]
self.wview('pyvaltable', pyvalue=sorted(views),
headers=(_(u'content type'), _(u'view identifier'),
_(u'view title')))
def possible_views(self, etype):
rset = self._cw.etype_rset(etype)
return [v for v in self._cw.vreg['views'].possible_views(self._cw, rset)
if v.category != 'startupview']
class CWETypeOneLineView(baseviews.OneLineView):
__select__ = implements('CWEType')
def cell_call(self, row, col, **kwargs):
entity = self.cw_rset.get_entity(row, col)
if entity.final:
self.w(u'<em class="finalentity">')
super(CWETypeOneLineView, self).cell_call(row, col, **kwargs)
if entity.final:
self.w(u'</em>')
# CWRType ######################################################################
class CWRTypePrimaryView(tabs.TabbedPrimaryView):
__select__ = implements('CWRType')
tabs = [_('cwrtype-description'), _('cwrtype-permissions')]
default_tab = 'cwrtype-description'
class CWRTypeDescriptionTab(tabs.PrimaryTab):
__regid__ = 'cwrtype-description'
__select__ = implements('CWRType')
def render_entity_attributes(self, entity):
super(CWRTypeDescriptionTab, self).render_entity_attributes(entity)
_ = self._cw._
if not entity.final:
msg = _('graphical schema for %s') % entity.name
self.w(tags.img(src=entity.absolute_url(vid='schemagraph'),
alt=msg))
rset = self._cw.execute('Any R,C,R,R, RT WHERE '
'R relation_type RT, RT eid %(x)s, '
'R cardinality C', {'x': entity.eid})
self.wview('table', rset, 'null',
headers=(_(u'relation'), _(u'cardinality'), _(u'constraints'),
_(u'options')),
cellvids={2: 'rdef-constraints-cell',
3: 'rdef-options-cell'})
class CWRTypePermTab(SecurityViewMixIn, EntityView):
__regid__ = 'cwrtype-permissions'
__select__ = implements('CWRType') & authenticated_user()
def cell_call(self, row, col):
entity = self.cw_rset.get_entity(row, col)
rschema = self._cw.vreg.schema.rschema(entity.name)
self.grouped_permissions_table(rschema)
# CWAttribute / CWRelation #####################################################
class RDEFPrimaryView(tabs.TabbedPrimaryView):
__select__ = implements('CWRelation', 'CWAttribute')
tabs = [_('rdef-description'), _('rdef-permissions')]
default_tab = 'rdef-description'
class RDEFDescriptionTab(tabs.PrimaryTab):
__regid__ = 'rdef-description'
__select__ = implements('CWRelation', 'CWAttribute')
def render_entity_attributes(self, entity):
super(RDEFDescriptionTab, self).render_entity_attributes(entity)
rdef = entity.yams_schema()
if rdef.constraints:
self.w(u'<h4>%s</h4>' % self._cw._('constrained_by'))
self.w(entity.view('rdef-constraints-cell'))
class RDEFPermTab(SecurityViewMixIn, EntityView):
__regid__ = 'rdef-permissions'
__select__ = implements('CWRelation', 'CWAttribute') & authenticated_user()
def cell_call(self, row, col):
self.permissions_table(self.cw_rset.get_entity(row, col).yams_schema())
class RDEFNameView(tableview.CellView):
"""display relation name and its translation only in a cell view, link to
relation definition's primary view (for use in entity type relations table
for instance)
"""
__regid__ = 'rdef-name-cell'
__select__ = implements('CWRelation', 'CWAttribute')
def cell_call(self, row, col):
entity = self.cw_rset.get_entity(row, col)
rtype = entity.relation_type[0].name
# XXX use context entity + pgettext
self.w(u'<a href="%s">%s</a> (%s)' % (
entity.absolute_url(), rtype, self._cw._(rtype)))
class RDEFObjectNameView(tableview.CellView):
"""same as RDEFNameView but when the context is the object entity
"""
__regid__ = 'rdef-object-name-cell'
__select__ = implements('CWRelation', 'CWAttribute')
def cell_call(self, row, col):
entity = self.cw_rset.get_entity(row, col)
rtype = entity.relation_type[0].name
# XXX use context entity + pgettext
self.w(u'<a href="%s">%s</a> (%s)' % (
entity.absolute_url(), rtype, self._cw.__(rtype + '_object')))
class RDEFConstraintsCell(EntityView):
__regid__ = 'rdef-constraints-cell'
__select__ = implements('CWAttribute', 'CWRelation')
def cell_call(self, row, col):
entity = self.cw_rset.get_entity(row, col)
rschema = self._cw.vreg.schema.rschema(entity.rtype.name)
rdef = rschema.rdefs[(entity.stype.name, entity.otype.name)]
constraints = [xml_escape(str(c)) for c in getattr(rdef, 'constraints')]
self.w(u'<br/>'.join(constraints))
class CWAttributeOptionsCell(EntityView):
__regid__ = 'rdef-options-cell'
__select__ = implements('CWAttribute')
def cell_call(self, row, col):
entity = self.cw_rset.get_entity(row, col)
options = []
if entity.indexed:
options.append(self._cw._('indexed'))
if entity.fulltextindexed:
options.append(self._cw._('fulltextindexed'))
if entity.internationalizable:
options.append(self._cw._('internationalizable'))
self.w(u','.join(options))
class CWRelationOptionsCell(EntityView):
__regid__ = 'rdef-options-cell'
__select__ = implements('CWRelation',)
def cell_call(self, row, col):
entity = self.cw_rset.get_entity(row, col)
rtype = entity.rtype
options = []
if rtype.symmetric:
options.append(self._cw._('symmetric'))
if rtype.inlined:
options.append(self._cw._('inlined'))
if rtype.fulltext_container:
options.append('%s=%s' % (self._cw._('fulltext_container'),
self._cw._(rtype.fulltext_container)))
if entity.composite:
options.append('%s=%s' % (self._cw._('composite'),
self._cw._(entity.composite)))
self.w(u','.join(options))
# schema images ###############################################################
class RestrictedSchemaVisitorMixIn(object):
def __init__(self, req, *args, **kwargs):
self._cw = req
super(RestrictedSchemaVisitorMixIn, self).__init__(*args, **kwargs)
def should_display_schema(self, rschema):
return (super(RestrictedSchemaVisitorMixIn, self).should_display_schema(rschema)
and rschema.may_have_permission('read', self._cw))
def should_display_attr(self, eschema, rschema):
return (super(RestrictedSchemaVisitorMixIn, self).should_display_attr(eschema, rschema)
and eschema.rdef(rschema).may_have_permission('read', self._cw))
class FullSchemaVisitor(RestrictedSchemaVisitorMixIn, s2d.FullSchemaVisitor):
pass
class OneHopESchemaVisitor(RestrictedSchemaVisitorMixIn,
s2d.OneHopESchemaVisitor):
pass
class OneHopRSchemaVisitor(RestrictedSchemaVisitorMixIn,
s2d.OneHopRSchemaVisitor):
pass
class SchemaImageView(TmpFileViewMixin, StartupView):
__regid__ = 'schemagraph'
content_type = 'image/png'
def _generate(self, tmpfile):
"""display global schema information"""
visitor = FullSchemaVisitor(self._cw, self._cw.vreg.schema,
skiptypes=skip_types(self._cw))
s2d.schema2dot(outputfile=tmpfile, visitor=visitor)
class CWETypeSchemaImageView(TmpFileViewMixin, EntityView):
__regid__ = 'schemagraph'
__select__ = implements('CWEType')
content_type = 'image/png'
def _generate(self, tmpfile):
"""display schema information for an entity"""
entity = self.cw_rset.get_entity(self.cw_row, self.cw_col)
eschema = self._cw.vreg.schema.eschema(entity.name)
visitor = OneHopESchemaVisitor(self._cw, eschema,
skiptypes=skip_types(self._cw))
s2d.schema2dot(outputfile=tmpfile, visitor=visitor)
class CWRTypeSchemaImageView(CWETypeSchemaImageView):
__select__ = implements('CWRType')
def _generate(self, tmpfile):
"""display schema information for an entity"""
entity = self.cw_rset.get_entity(self.cw_row, self.cw_col)
rschema = self._cw.vreg.schema.rschema(entity.name)
visitor = OneHopRSchemaVisitor(self._cw, rschema)
s2d.schema2dot(outputfile=tmpfile, visitor=visitor)
# misc: facets, actions ########################################################
class CWFinalFacet(facet.AttributeFacet):
__regid__ = 'cwfinal-facet'
__select__ = facet.AttributeFacet.__select__ & implements('CWEType', 'CWRType')
rtype = 'final'
class ViewSchemaAction(action.Action):
__regid__ = 'schema'
__select__ = yes()
title = _("site schema")
category = 'siteactions'
order = 30
def url(self):
return self._cw.build_url(self.__regid__)