author | Sylvain Thénault <sylvain.thenault@logilab.fr> |
Wed, 27 Jan 2010 09:53:48 +0100 | |
changeset 4387 | 4aacd6492ef4 |
parent 4252 | 6c4f109c2b03 |
child 4467 | 0e73d299730a |
permissions | -rw-r--r-- |
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"""an helper class to display CubicWeb schema using ureports |
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:organization: Logilab |
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update copyright: welcome 2010
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:copyright: 2001-2010 LOGILAB S.A. (Paris, FRANCE), license is LGPL v2. |
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:contact: http://www.logilab.fr/ -- mailto:contact@logilab.fr |
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:license: GNU Lesser General Public License, v2.1 - http://www.gnu.org/licenses |
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""" |
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__docformat__ = "restructuredtext en" |
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_ = unicode |
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from logilab.common.ureports import Section, Title, Table, Link, Span, Text |
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from yams.schema2dot import CARD_MAP |
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from yams.schema import RelationDefinitionSchema |
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I18NSTRINGS = [_('read'), _('add'), _('delete'), _('update'), _('order')] |
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class SchemaViewer(object): |
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"""return an ureport layout for some part of a schema""" |
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def __init__(self, req=None, encoding=None): |
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self.req = req |
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if req is not None: |
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self.req.add_css('cubicweb.schema.css') |
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self._possible_views = req.vreg['views'].possible_views |
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if not encoding: |
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encoding = req.encoding |
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else: |
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self._possible_views = lambda x: () |
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self.encoding = encoding |
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def format_acls(self, schema, access_types): |
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"""return a layout displaying access control lists""" |
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data = [self.req._('access type'), self.req._('groups')] |
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for access_type in access_types: |
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data.append(self.req._(access_type)) |
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acls = [Link(self.req.build_url('cwgroup/%s' % group), self.req._(group)) |
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for group in schema.get_groups(access_type)] |
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acls += (Text(rqlexp.expression) for rqlexp in schema.get_rqlexprs(access_type)) |
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acls = [n for _n in acls for n in (_n, Text(', '))][:-1] |
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data.append(Span(children=acls)) |
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return Section(children=(Table(cols=2, cheaders=1, rheaders=1, children=data),), |
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klass='acl') |
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Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
1998
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def visit_schema(self, schema, display_relations=0, skiptypes=()): |
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"""get a layout for a whole schema""" |
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title = Title(self.req._('Schema %s') % schema.name, |
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klass='titleUnderline') |
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layout = Section(children=(title,)) |
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esection = Section(children=(Title(self.req._('Entities'), |
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klass='titleUnderline'),)) |
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layout.append(esection) |
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eschemas = [eschema for eschema in schema.entities() |
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if not (eschema.final or eschema in skiptypes)] |
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for eschema in sorted(eschemas): |
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esection.append(self.visit_entityschema(eschema, skiptypes)) |
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if display_relations: |
59 |
title = Title(self.req._('Relations'), klass='titleUnderline') |
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rsection = Section(children=(title,)) |
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layout.append(rsection) |
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relations = [rschema for rschema in schema.relations() |
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if not (rschema.final or rschema.type in skiptypes)] |
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keys = [(rschema.type, rschema) for rschema in relations] |
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for key, rschema in sorted(keys): |
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relstr = self.visit_relationschema(rschema) |
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rsection.append(relstr) |
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return layout |
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def _entity_attributes_data(self, eschema): |
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_ = self.req._ |
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data = [_('attribute'), _('type'), _('default'), _('constraints')] |
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for rschema, aschema in eschema.attribute_definitions(): |
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rdef = eschema.rdef(rschema) |
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if not rdef.may_have_permission('read', self.req): |
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continue |
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aname = rschema.type |
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if aname == 'eid': |
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continue |
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data.append('%s (%s)' % (aname, _(aname))) |
81 |
data.append(_(aschema.type)) |
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defaultval = eschema.default(aname) |
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if defaultval is not None: |
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default = self.to_string(defaultval) |
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elif rdef.cardinality[0] == '1': |
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default = _('required field') |
87 |
else: |
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default = '' |
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data.append(default) |
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constraints = rschema.rproperty(eschema.type, aschema.type, |
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'constraints') |
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data.append(', '.join(str(constr) for constr in constraints)) |
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return data |
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def eschema_link_url(self, eschema): |
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return self.req.build_url('cwetype/%s' % eschema) |
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def rschema_link_url(self, rschema): |
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parents:
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return self.req.build_url('cwrtype/%s' % rschema) |
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def possible_views(self, etype): |
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rset = self.req.etype_rset(etype) |
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return [v for v in self._possible_views(self.req, rset) |
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if v.category != 'startupview'] |
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def stereotype(self, name): |
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return Span((' <<%s>>' % name,), klass='stereotype') |
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Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
1998
diff
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|
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def visit_entityschema(self, eschema, skiptypes=()): |
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"""get a layout for an entity schema""" |
111 |
etype = eschema.type |
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layout = Section(children=' ', klass='clear') |
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layout.append(Link(etype,' ' , id=etype)) # anchor |
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title = Link(self.eschema_link_url(eschema), etype) |
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1998
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boxchild = [Section(children=(title, ' (%s)'% eschema.display_name(self.req)), klass='title')] |
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table = Table(cols=4, rheaders=1, klass='listing', |
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children=self._entity_attributes_data(eschema)) |
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boxchild.append(Section(children=(table,), klass='body')) |
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data = [] |
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data.append(Section(children=boxchild, klass='box')) |
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data.append(Section(children='', klass='vl')) |
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data.append(Section(children='', klass='hl')) |
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t_vars = [] |
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rels = [] |
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first = True |
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for rschema, targetschemas, role in eschema.relation_definitions(): |
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1998
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if rschema.type in skiptypes: |
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continue |
129 |
rschemaurl = self.rschema_link_url(rschema) |
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for oeschema in targetschemas: |
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rdef = rschema.role_rdef(eschema, oeschema, role) |
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if not rdef.may_have_permission('read', self.req): |
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continue |
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label = rschema.type |
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if role == 'subject': |
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cards = rschema.rproperty(eschema, oeschema, 'cardinality') |
137 |
else: |
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cards = rschema.rproperty(oeschema, eschema, 'cardinality') |
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cards = cards[::-1] |
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label = '%s %s (%s) %s' % (CARD_MAP[cards[1]], label, |
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display_name(self.req, label, role), |
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CARD_MAP[cards[0]]) |
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rlink = Link(rschemaurl, label) |
144 |
elink = Link(self.eschema_link_url(oeschema), oeschema.type) |
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145 |
if first: |
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146 |
t_vars.append(Section(children=(elink,), klass='firstvar')) |
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147 |
rels.append(Section(children=(rlink,), klass='firstrel')) |
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148 |
first = False |
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149 |
else: |
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150 |
t_vars.append(Section(children=(elink,), klass='var')) |
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151 |
rels.append(Section(children=(rlink,), klass='rel')) |
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152 |
data.append(Section(children=rels, klass='rels')) |
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153 |
data.append(Section(children=t_vars, klass='vars')) |
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layout.append(Section(children=data, klass='entityAttributes')) |
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if eschema.final: # stop here for final entities |
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return layout |
157 |
_ = self.req._ |
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158 |
if self.req.user.matching_groups('managers'): |
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# layout.append(self.format_acls(eschema, ('read', 'add', 'delete', 'update'))) |
0 | 160 |
# possible views for this entity type |
161 |
views = [_(view.title) for view in self.possible_views(etype)] |
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162 |
layout.append(Section(children=(Table(cols=1, rheaders=1, |
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163 |
children=[_('views')]+views),), |
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164 |
klass='views')) |
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165 |
return layout |
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0 | 167 |
def visit_relationschema(self, rschema, title=True): |
168 |
"""get a layout for a relation schema""" |
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169 |
_ = self.req._ |
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if title: |
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title = Link(self.rschema_link_url(rschema), rschema.type) |
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stereotypes = [] |
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if rschema.meta: |
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stereotypes.append('meta') |
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if rschema.symetric: |
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stereotypes.append('symetric') |
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177 |
if rschema.inlined: |
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stereotypes.append('inlined') |
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title = Section(children=(title, ' (%s)'%rschema.display_name(self.req)), klass='title') |
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if stereotypes: |
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title.append(self.stereotype(','.join(stereotypes))) |
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layout = Section(children=(title,), klass='schema') |
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else: |
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184 |
layout = Section(klass='schema') |
0 | 185 |
data = [_('from'), _('to')] |
186 |
schema = rschema.schema |
|
187 |
rschema_objects = rschema.objects() |
|
188 |
if rschema_objects: |
|
189 |
# might be empty |
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4087 | 190 |
properties = [p for p in RelationDefinitionSchema.rproperty_defs(rschema_objects[0]) |
0 | 191 |
if not p in ('cardinality', 'composite', 'eid')] |
192 |
else: |
|
193 |
properties = [] |
|
194 |
data += [_(prop) for prop in properties] |
|
195 |
cols = len(data) |
|
196 |
done = set() |
|
197 |
for subjtype, objtypes in rschema.associations(): |
|
198 |
for objtype in objtypes: |
|
199 |
if (subjtype, objtype) in done: |
|
200 |
continue |
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201 |
done.add((subjtype, objtype)) |
|
202 |
if rschema.symetric: |
|
203 |
done.add((objtype, subjtype)) |
|
204 |
data.append(Link(self.eschema_link_url(schema[subjtype]), subjtype)) |
|
205 |
data.append(Link(self.eschema_link_url(schema[objtype]), objtype)) |
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rdef = rschema.rdef(subjtype, objtype) |
0 | 207 |
for prop in properties: |
4087 | 208 |
val = getattr(rdef, prop) |
0 | 209 |
if val is None: |
210 |
val = '' |
|
211 |
elif isinstance(val, (list, tuple)): |
|
212 |
val = ', '.join(str(v) for v in val) |
|
213 |
elif val and isinstance(val, basestring): |
|
214 |
val = _(val) |
|
215 |
else: |
|
216 |
val = str(val) |
|
217 |
data.append(Text(val)) |
|
3768
8c85a2f7f5ad
nicer relation|entity schema view
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
3689
diff
changeset
|
218 |
table = Table(cols=cols, rheaders=1, children=data, klass='listing') |
0 | 219 |
layout.append(Section(children=(table,), klass='relationDefinition')) |
4092
df554ae4203c
avoid failure by simply not displaying this section for now"
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
4089
diff
changeset
|
220 |
#if self.req.user.matching_groups('managers'): |
df554ae4203c
avoid failure by simply not displaying this section for now"
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
4089
diff
changeset
|
221 |
# layout.append(self.format_acls(rschema, ('read', 'add', 'delete'))) |
0 | 222 |
layout.append(Section(children='', klass='clear')) |
223 |
return layout |
|
224 |
||
225 |
def to_string(self, value): |
|
226 |
"""used to converte arbitrary values to encoded string""" |
|
227 |
if isinstance(value, unicode): |
|
228 |
return value.encode(self.encoding, 'replace') |
|
229 |
return str(value) |