author | Arthur Lutz <arthur.lutz@logilab.fr> |
Thu, 02 Feb 2012 17:59:52 +0100 | |
branch | stable |
changeset 8191 | eceaf9e21966 |
parent 7407 | a78cc15227ef |
child 9704 | 43c9896d0e9f |
permissions | -rw-r--r-- |
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# copyright 2003-2011 LOGILAB S.A. (Paris, FRANCE), all rights reserved. |
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# contact http://www.logilab.fr/ -- mailto:contact@logilab.fr |
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# |
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# This file is part of CubicWeb. |
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5 |
# |
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# CubicWeb is free software: you can redistribute it and/or modify it under the |
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# terms of the GNU Lesser General Public License as published by the Free |
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# Software Foundation, either version 2.1 of the License, or (at your option) |
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# any later version. |
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# |
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# CubicWeb is distributed in the hope that it will be useful, but WITHOUT |
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# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS |
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# FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more |
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# details. |
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15 |
# |
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# You should have received a copy of the GNU Lesser General Public License along |
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# with CubicWeb. If not, see <http://www.gnu.org/licenses/>. |
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"""an helper class to display CubicWeb schema using ureports""" |
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__docformat__ = "restructuredtext en" |
|
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_ = unicode |
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|
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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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from operator import attrgetter |
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TYPE_GETTER = attrgetter('type') |
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I18NSTRINGS = [_('read'), _('add'), _('delete'), _('update'), _('order')] |
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||
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0 | 34 |
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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req.add_css('cubicweb.schema.css') |
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if encoding is None: |
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encoding = req.encoding |
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self._ = req._ |
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else: |
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encoding = 'ascii' |
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self._ = unicode |
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self.encoding = encoding |
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# no self.req managements |
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def may_read(self, rdef, action='read'): |
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"""Return true if request user may read the given schema. |
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Always return True when no request is provided. |
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""" |
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if self.req is None: |
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return True |
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return rdef.may_have_permission(action, self.req) |
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def format_eschema(self, eschema): |
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text = eschema.type |
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if self.req is None: |
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return Text(text) |
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return Link(self.req.build_url('cwetype/%s' % eschema), text) |
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def format_rschema(self, rschema, label=None): |
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if label is None: |
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label = rschema.type |
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if self.req is None: |
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return Text(label) |
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return Link(self.req.build_url('cwrtype/%s' % rschema), label) |
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# end of no self.req managements |
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def visit_schema(self, schema, display_relations=0, skiptypes=()): |
0 | 74 |
"""get a layout for a whole schema""" |
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title = Title(self._('Schema %s') % schema.name, |
0 | 76 |
klass='titleUnderline') |
77 |
layout = Section(children=(title,)) |
|
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esection = Section(children=(Title(self._('Entities'), |
0 | 79 |
klass='titleUnderline'),)) |
80 |
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, key=TYPE_GETTER): |
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esection.append(self.visit_entityschema(eschema, skiptypes)) |
0 | 85 |
if display_relations: |
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title = Title(self._('Relations'), klass='titleUnderline') |
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rsection = Section(children=(title,)) |
0 | 88 |
layout.append(rsection) |
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relations = [rschema for rschema in sorted(schema.relations(), key=TYPE_GETTER) |
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if not (rschema.final or rschema.type in skiptypes)] |
0 | 91 |
keys = [(rschema.type, rschema) for rschema in relations] |
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92 |
for key, rschema in sorted(keys, cmp=(lambda x, y: cmp(x[1], y[1]))): |
0 | 93 |
relstr = self.visit_relationschema(rschema) |
94 |
rsection.append(relstr) |
|
95 |
return layout |
|
96 |
||
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def _entity_attributes_data(self, eschema): |
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_ = self._ |
0 | 99 |
data = [_('attribute'), _('type'), _('default'), _('constraints')] |
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attributes = sorted(eschema.attribute_definitions(), cmp=(lambda x, y: cmp(x[0].type, y[0].type))) |
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101 |
for rschema, aschema in attributes: |
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102 |
rdef = eschema.rdef(rschema) |
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103 |
if not self.may_read(rdef): |
0 | 104 |
continue |
105 |
aname = rschema.type |
|
106 |
if aname == 'eid': |
|
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107 |
continue |
0 | 108 |
data.append('%s (%s)' % (aname, _(aname))) |
109 |
data.append(_(aschema.type)) |
|
110 |
defaultval = eschema.default(aname) |
|
111 |
if defaultval is not None: |
|
112 |
default = self.to_string(defaultval) |
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113 |
elif rdef.cardinality[0] == '1': |
0 | 114 |
default = _('required field') |
115 |
else: |
|
116 |
default = '' |
|
117 |
data.append(default) |
|
118 |
constraints = rschema.rproperty(eschema.type, aschema.type, |
|
119 |
'constraints') |
|
120 |
data.append(', '.join(str(constr) for constr in constraints)) |
|
121 |
return data |
|
122 |
||
123 |
||
124 |
def stereotype(self, name): |
|
125 |
return Span((' <<%s>>' % name,), klass='stereotype') |
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Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
1998
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127 |
def visit_entityschema(self, eschema, skiptypes=()): |
0 | 128 |
"""get a layout for an entity schema""" |
129 |
etype = eschema.type |
|
130 |
layout = Section(children=' ', klass='clear') |
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layout.append(Link(etype,' ' , id=etype)) # anchor |
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132 |
title = self.format_eschema(eschema) |
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133 |
boxchild = [Section(children=(title,), klass='title')] |
0 | 134 |
data = [] |
135 |
data.append(Section(children=boxchild, klass='box')) |
|
136 |
data.append(Section(children='', klass='vl')) |
|
137 |
data.append(Section(children='', klass='hl')) |
|
138 |
t_vars = [] |
|
139 |
rels = [] |
|
140 |
first = True |
|
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141 |
|
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142 |
rel_defs = sorted(eschema.relation_definitions(), |
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143 |
cmp=(lambda x, y: cmp((x[0].type, x[0].cardinality), |
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144 |
(y[0].type, y[0].cardinality)))) |
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145 |
for rschema, targetschemas, role in rel_defs: |
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Sylvain Thénault <sylvain.thenault@logilab.fr>
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146 |
if rschema.type in skiptypes: |
0 | 147 |
continue |
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for oeschema in sorted(targetschemas, key=TYPE_GETTER): |
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rdef = rschema.role_rdef(eschema, oeschema, role) |
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150 |
if not self.may_read(rdef): |
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151 |
continue |
0 | 152 |
label = rschema.type |
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153 |
if role == 'subject': |
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cards = rschema.rdef(eschema, oeschema).cardinality |
0 | 155 |
else: |
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156 |
cards = rschema.rdef(oeschema, eschema).cardinality |
0 | 157 |
cards = cards[::-1] |
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158 |
label = '%s %s %s' % (CARD_MAP[cards[1]], label, |
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159 |
CARD_MAP[cards[0]]) |
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160 |
rlink = self.format_rschema(rschema, label) |
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161 |
elink = self.format_eschema(oeschema) |
0 | 162 |
if first: |
163 |
t_vars.append(Section(children=(elink,), klass='firstvar')) |
|
164 |
rels.append(Section(children=(rlink,), klass='firstrel')) |
|
165 |
first = False |
|
166 |
else: |
|
167 |
t_vars.append(Section(children=(elink,), klass='var')) |
|
168 |
rels.append(Section(children=(rlink,), klass='rel')) |
|
169 |
data.append(Section(children=rels, klass='rels')) |
|
170 |
data.append(Section(children=t_vars, klass='vars')) |
|
171 |
layout.append(Section(children=data, klass='entityAttributes')) |
|
172 |
return layout |
|
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173 |
|
0 | 174 |
def visit_relationschema(self, rschema, title=True): |
175 |
"""get a layout for a relation schema""" |
|
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176 |
_ = self._ |
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177 |
if title: |
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178 |
title = self.format_rschema(rschema) |
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179 |
stereotypes = [] |
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180 |
if rschema.meta: |
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181 |
stereotypes.append('meta') |
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182 |
if rschema.symmetric: |
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183 |
stereotypes.append('symmetric') |
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|
184 |
if rschema.inlined: |
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|
185 |
stereotypes.append('inlined') |
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|
186 |
title = Section(children=(title,), klass='title') |
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187 |
if stereotypes: |
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188 |
title.append(self.stereotype(','.join(stereotypes))) |
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|
189 |
layout = Section(children=(title,), klass='schema') |
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190 |
else: |
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191 |
layout = Section(klass='schema') |
0 | 192 |
data = [_('from'), _('to')] |
193 |
schema = rschema.schema |
|
194 |
rschema_objects = rschema.objects() |
|
195 |
if rschema_objects: |
|
196 |
# might be empty |
|
4087 | 197 |
properties = [p for p in RelationDefinitionSchema.rproperty_defs(rschema_objects[0]) |
0 | 198 |
if not p in ('cardinality', 'composite', 'eid')] |
199 |
else: |
|
200 |
properties = [] |
|
201 |
data += [_(prop) for prop in properties] |
|
202 |
cols = len(data) |
|
203 |
done = set() |
|
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|
204 |
for subjtype, objtypes in sorted(rschema.associations()): |
0 | 205 |
for objtype in objtypes: |
206 |
if (subjtype, objtype) in done: |
|
207 |
continue |
|
208 |
done.add((subjtype, objtype)) |
|
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|
209 |
if rschema.symmetric: |
0 | 210 |
done.add((objtype, subjtype)) |
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211 |
data.append(self.format_eschema(schema[subjtype])) |
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212 |
data.append(self.format_eschema(schema[objtype])) |
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|
213 |
rdef = rschema.rdef(subjtype, objtype) |
0 | 214 |
for prop in properties: |
4087 | 215 |
val = getattr(rdef, prop) |
0 | 216 |
if val is None: |
217 |
val = '' |
|
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|
218 |
elif prop == 'constraints': |
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|
219 |
val = ', '.join([c.expression for c in val]) |
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|
220 |
elif isinstance(val, dict): |
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|
221 |
for key, value in val.iteritems(): |
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|
222 |
if isinstance(value, (list, tuple)): |
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|
223 |
val[key] = ', '.join(sorted( str(v) for v in value)) |
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|
224 |
val = str(val) |
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|
225 |
|
0 | 226 |
elif isinstance(val, (list, tuple)): |
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|
227 |
val = sorted(val) |
0 | 228 |
val = ', '.join(str(v) for v in val) |
229 |
elif val and isinstance(val, basestring): |
|
230 |
val = _(val) |
|
231 |
else: |
|
232 |
val = str(val) |
|
233 |
data.append(Text(val)) |
|
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|
234 |
table = Table(cols=cols, rheaders=1, children=data, klass='listing') |
0 | 235 |
layout.append(Section(children=(table,), klass='relationDefinition')) |
236 |
layout.append(Section(children='', klass='clear')) |
|
237 |
return layout |
|
238 |
||
239 |
def to_string(self, value): |
|
240 |
"""used to converte arbitrary values to encoded string""" |
|
241 |
if isinstance(value, unicode): |
|
242 |
return value.encode(self.encoding, 'replace') |
|
243 |
return str(value) |