author | Sylvain Thénault <sylvain.thenault@logilab.fr> |
Tue, 13 Sep 2011 15:41:11 +0200 | |
changeset 7784 | 7f5c455ec7d1 |
parent 7553 | 935423529f45 |
child 7911 | 5ab88d05083f |
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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# |
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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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# |
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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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"""base xml and rss views""" |
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__docformat__ = "restructuredtext en" |
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_ = unicode |
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from base64 import b64encode |
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from time import timezone |
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from logilab.mtconverter import xml_escape |
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[selectors] provide a new, optimized, is_instance selector that should at some point replace implements (along with the adaptable selector)
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from cubicweb.selectors import (is_instance, non_final_entity, one_line_rset, |
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appobject_selectable, adaptable) |
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from cubicweb.view import EntityView, EntityAdapter, AnyRsetView, Component |
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from cubicweb.view import implements_adapter_compat |
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from cubicweb.uilib import simple_sgml_tag |
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from cubicweb.web import httpcache, component |
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def encode_bytes(value): |
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return '<![CDATA[%s]]>' % b64encode(value.getvalue()) |
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# see cubicweb.sobjects.parser.DEFAULT_CONVERTERS |
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SERIALIZERS = { |
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'String': xml_escape, |
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'Bytes': encode_bytes, |
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'Date': lambda x: x.strftime('%Y-%m-%d'), |
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'Datetime': lambda x: x.strftime('%Y-%m-%d %H:%M:%S'), |
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'Time': lambda x: x.strftime('%H:%M:%S'), |
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[time zone] support for TZDatetime and TZTime data type
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'TZDatetime': lambda x: x.strftime('%Y-%m-%d %H:%M:%S'), # XXX TZ |
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'TZTime': lambda x: x.strftime('%H:%M:%S'), |
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'Interval': lambda x: x.days * 60*60*24 + x.seconds, |
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} |
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# base xml views ############################################################## |
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class XMLView(EntityView): |
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"""xml view for entities""" |
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__regid__ = 'xml' |
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title = _('xml') |
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templatable = False |
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content_type = 'text/xml' |
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xml_root = 'rset' |
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item_vid = 'xmlitem' |
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def cell_call(self, row, col): |
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self.wview(self.item_vid, self.cw_rset, row=row, col=col) |
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def call(self): |
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"""display a list of entities by calling their <item_vid> view""" |
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self.w(u'<?xml version="1.0" encoding="%s"?>\n' % self._cw.encoding) |
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self.w(u'<%s size="%s">\n' % (self.xml_root, len(self.cw_rset))) |
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for i in xrange(self.cw_rset.rowcount): |
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self.cell_call(i, 0) |
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self.w(u'</%s>\n' % self.xml_root) |
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class XMLItemView(EntityView): |
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__regid__ = 'xmlitem' |
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def entity_call(self, entity): |
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"""element as an item for an xml feed""" |
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entity.complete() |
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source = entity.cw_metainformation()['source']['uri'] |
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self.w(u'<%s eid="%s" cwuri="%s" cwsource="%s">\n' |
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% (entity.__regid__, entity.eid, xml_escape(entity.cwuri), |
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xml_escape(source))) |
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for rschema, attrschema in entity.e_schema.attribute_definitions(): |
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attr = rschema.type |
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if attr in ('eid', 'cwuri'): |
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continue |
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else: |
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try: |
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value = entity.cw_attr_cache[attr] |
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except KeyError: |
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# Bytes |
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continue |
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if value is None: |
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self.w(u' <%s/>\n' % attr) |
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else: |
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try: |
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value = SERIALIZERS[attrschema](value) |
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except KeyError: |
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pass |
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100 |
self.w(u' <%s>%s</%s>\n' % (attr, value, attr)) |
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|
101 |
for relstr in self._cw.list_form_param('relation'): |
037a0277db0a
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|
102 |
try: |
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|
103 |
rtype, role = relstr.split('-') |
037a0277db0a
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parents:
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diff
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|
104 |
except ValueError: |
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|
105 |
self.error('badly formated relation name %r', relstr) |
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|
106 |
continue |
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diff
changeset
|
107 |
if role == 'subject': |
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parents:
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diff
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|
108 |
getrschema = entity.e_schema.subjrels |
037a0277db0a
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parents:
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diff
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|
109 |
elif role == 'object': |
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[xml] enhance default entity xml view
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parents:
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diff
changeset
|
110 |
getrschema = entity.e_schema.objrels |
037a0277db0a
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parents:
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diff
changeset
|
111 |
else: |
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parents:
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diff
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|
112 |
self.error('badly formated relation name %r', relstr) |
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parents:
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diff
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|
113 |
continue |
037a0277db0a
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parents:
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diff
changeset
|
114 |
if not rtype in getrschema: |
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parents:
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|
115 |
self.error('unexisting relation %r', relstr) |
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parents:
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diff
changeset
|
116 |
continue |
037a0277db0a
[xml] enhance default entity xml view
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parents:
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diff
changeset
|
117 |
self.w(u' <%s role="%s">\n' % (rtype, role)) |
037a0277db0a
[xml] enhance default entity xml view
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parents:
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|
118 |
for related in entity.related(rtype, role, entities=True): |
7553
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|
119 |
related.view('xmlrelateditem', w=self.w) |
6959
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|
120 |
self.w(u' </%s>\n' % rtype) |
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121 |
self.w(u'</%s>\n' % (entity.e_schema)) |
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|
122 |
|
1477 | 123 |
|
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|
124 |
class XMLRelatedItemView(EntityView): |
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|
125 |
__regid__ = 'xmlrelateditem' |
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|
126 |
|
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|
127 |
def entity_call(self, entity): |
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|
128 |
# XXX put unique attributes as xml attribute, they are much probably |
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|
129 |
# used to search existing entities in client data feed, and putting it |
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|
130 |
# here may avoid an extra request to get those attributes values |
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|
131 |
self.w(u' <%s eid="%s" cwuri="%s"/>\n' |
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[datafeed cw parser] refactor: split logic that was in the parser
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|
132 |
% (entity.e_schema, entity.eid, xml_escape(entity.cwuri))) |
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|
133 |
|
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|
134 |
|
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|
135 |
class XMLRelatedItemStateView(XMLRelatedItemView): |
935423529f45
[datafeed cw parser] refactor: split logic that was in the parser
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|
136 |
__select__ = is_instance('State') |
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|
137 |
|
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|
138 |
def entity_call(self, entity): |
935423529f45
[datafeed cw parser] refactor: split logic that was in the parser
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|
139 |
self.w(u' <%s eid="%s" cwuri="%s" name="%s"/>\n' |
935423529f45
[datafeed cw parser] refactor: split logic that was in the parser
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|
140 |
% (entity.e_schema, entity.eid, xml_escape(entity.cwuri), |
935423529f45
[datafeed cw parser] refactor: split logic that was in the parser
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diff
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|
141 |
xml_escape(entity.name))) |
935423529f45
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|
142 |
|
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|
143 |
|
1652 | 144 |
class XMLRsetView(AnyRsetView): |
824
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|
145 |
"""dumps raw rset as xml""" |
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|
146 |
__regid__ = 'rsetxml' |
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a5e6acffde30
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|
147 |
title = _('xml export') |
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|
148 |
templatable = False |
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|
149 |
content_type = 'text/xml' |
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|
150 |
xml_root = 'rset' |
1477 | 151 |
|
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|
152 |
def call(self): |
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|
153 |
w = self.w |
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6b46d73823f5
[api] work in progress, use __regid__, cw_*, etc.
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
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diff
changeset
|
154 |
rset, descr = self.cw_rset, self.cw_rset.description |
4045
f4a52abb6f4f
cw 3.6 api update
Sandrine Ribeau <sandrine.ribeau@logilab.fr>
parents:
4023
diff
changeset
|
155 |
eschema = self._cw.vreg.schema.eschema |
2205
fc1447fe94df
tr is now the second argument
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
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diff
changeset
|
156 |
labels = self.columns_labels(tr=False) |
3451
6b46d73823f5
[api] work in progress, use __regid__, cw_*, etc.
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|
157 |
w(u'<?xml version="1.0" encoding="%s"?>\n' % self._cw.encoding) |
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a5e6acffde30
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changeset
|
158 |
w(u'<%s query="%s">\n' % (self.xml_root, xml_escape(rset.printable_rql()))) |
3451
6b46d73823f5
[api] work in progress, use __regid__, cw_*, etc.
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
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diff
changeset
|
159 |
for rowindex, row in enumerate(self.cw_rset): |
824
a5e6acffde30
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changeset
|
160 |
w(u' <row>\n') |
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|
161 |
for colindex, val in enumerate(row): |
a5e6acffde30
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parents:
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|
162 |
etype = descr[rowindex][colindex] |
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|
163 |
tag = labels[colindex] |
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|
164 |
attrs = {} |
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|
165 |
if '(' in tag: |
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|
166 |
attrs['expr'] = tag |
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|
167 |
tag = 'funccall' |
3689
deb13e88e037
follow yams 0.25 api changes to improve performance
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
3165
diff
changeset
|
168 |
if val is not None and not eschema(etype).final: |
824
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|
169 |
attrs['eid'] = val |
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|
170 |
# csvrow.append(val) # val is eid in that case |
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|
171 |
val = self._cw.view('textincontext', rset, |
6b46d73823f5
[api] work in progress, use __regid__, cw_*, etc.
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|
172 |
row=rowindex, col=colindex) |
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|
173 |
else: |
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Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
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|
174 |
val = self._cw.view('final', rset, row=rowindex, |
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|
175 |
col=colindex, format='text/plain') |
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parents:
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|
176 |
w(simple_sgml_tag(tag, val, **attrs)) |
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|
177 |
w(u' </row>\n') |
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|
178 |
w(u'</%s>\n' % self.xml_root) |
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|
179 |
|
1477 | 180 |
|
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|
181 |
# RSS stuff ################################################################### |
b5e253c0dd13
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|
182 |
|
5556
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|
183 |
class IFeedAdapter(EntityAdapter): |
6864
ea95004494a2
[adapters] fix #1424467 caused by precedence of bw compat method while the adapter is concret for a given class
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
6142
diff
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|
184 |
__needs_bw_compat__ = True |
5556
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|
185 |
__regid__ = 'IFeed' |
5877
0c7b7b76a84f
[selectors] provide a new, optimized, is_instance selector that should at some point replace implements (along with the adaptable selector)
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
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|
186 |
__select__ = is_instance('Any') |
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|
187 |
|
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|
188 |
@implements_adapter_compat('IFeed') |
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|
189 |
def rss_feed_url(self): |
9ab2b4c74baf
[entity] introduce a new 'adapters' registry
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|
190 |
"""return an url to the rss feed for this entity""" |
5569
cb14af012a96
[adapters] refactoring fixes
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parents:
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|
191 |
return self.entity.absolute_url(vid='rss') |
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|
192 |
|
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|
193 |
|
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|
194 |
class RSSFeedURL(Component): |
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|
195 |
__regid__ = 'rss_feed_url' |
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|
196 |
__select__ = non_final_entity() |
1477 | 197 |
|
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|
198 |
def feed_url(self): |
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e4843535db25
[api] some more _cw / __regid__, automatic tests now pass again
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|
199 |
return self._cw.build_url(rql=self.cw_rset.limited_rql(), vid='rss') |
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|
200 |
|
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|
201 |
|
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|
202 |
class RSSEntityFeedURL(Component): |
3377
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|
203 |
__regid__ = 'rss_feed_url' |
5556
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__select__ = one_line_rset() & adaptable('IFeed') |
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|
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def feed_url(self): |
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entity = self.cw_rset.get_entity(self.cw_row or 0, self.cw_col or 0) |
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return entity.cw_adapt_to('IFeed').rss_feed_url() |
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209 |
|
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|
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class RSSIconBox(component.CtxComponent): |
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"""just display the RSS icon on uniform result set""" |
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__regid__ = 'rss' |
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__select__ = (component.CtxComponent.__select__ |
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215 |
& appobject_selectable('components', 'rss_feed_url')) |
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|
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visible = False |
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order = 999 |
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|
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220 |
def render(self, w, **kwargs): |
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221 |
try: |
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rss = self._cw.uiprops['RSS_LOGO'] |
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223 |
except KeyError: |
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self.error('missing RSS_LOGO external resource') |
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return |
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urlgetter = self._cw.vreg['components'].select('rss_feed_url', self._cw, |
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rset=self.cw_rset) |
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url = urlgetter.feed_url() |
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w(u'<a href="%s"><img src="%s" alt="rss"/></a>\n' % (xml_escape(url), rss)) |
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230 |
|
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231 |
|
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class RSSView(XMLView): |
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__regid__ = 'rss' |
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title = _('rss') |
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templatable = False |
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content_type = 'text/xml' |
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237 |
http_cache_manager = httpcache.MaxAgeHTTPCacheManager |
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cache_max_age = 60*60*2 # stay in http cache for 2 hours by default |
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239 |
item_vid = 'rssitem' |
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|
241 |
def _open(self): |
|
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req = self._cw |
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self.w(u'<?xml version="1.0" encoding="%s"?>\n' % req.encoding) |
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self.w(u'<rss version="2.0" xmlns:dc="http://purl.org/dc/elements/1.1/">\n') |
245 |
self.w(u' <channel>\n') |
|
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self.w(u' <title>%s RSS Feed</title>\n' |
247 |
% xml_escape(self.page_title())) |
|
248 |
self.w(u' <description>%s</description>\n' |
|
249 |
% xml_escape(req.form.get('vtitle', ''))) |
|
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params = req.form.copy() |
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params.pop('vid', None) |
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self.w(u' <link>%s</link>\n' % xml_escape(self._cw.build_url(**params))) |
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|
254 |
def _close(self): |
|
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self.w(u' </channel>\n') |
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self.w(u'</rss>') |
257 |
||
258 |
def call(self): |
|
259 |
"""display a list of entities by calling their <item_vid> view""" |
|
260 |
self._open() |
|
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261 |
for i in xrange(self.cw_rset.rowcount): |
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self.cell_call(i, 0) |
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self._close() |
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264 |
|
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def cell_call(self, row, col): |
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self.wview(self.item_vid, self.cw_rset, row=row, col=col) |
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267 |
|
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|
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class RSSItemView(EntityView): |
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__regid__ = 'rssitem' |
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date_format = '%%Y-%%m-%%dT%%H:%%M%+03i:00' % (timezone / 3600) |
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add_div_section = False |
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273 |
|
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274 |
def cell_call(self, row, col): |
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entity = self.cw_rset.complete_entity(row, col) |
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self.w(u'<item>\n') |
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self.w(u'<guid isPermaLink="true">%s</guid>\n' |
278 |
% xml_escape(entity.absolute_url())) |
|
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self.render_title_link(entity) |
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280 |
self.render_description(entity) |
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self._marker('dc:date', entity.dc_date(self.date_format)) |
282 |
self.render_entity_creator(entity) |
|
283 |
self.w(u'</item>\n') |
|
284 |
||
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285 |
def render_description(self, entity): |
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286 |
self._marker('description', entity.dc_description(format='text/html')) |
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287 |
|
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def render_title_link(self, entity): |
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289 |
self._marker('title', entity.dc_long_title()) |
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290 |
self._marker('link', entity.absolute_url()) |
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|
292 |
def render_entity_creator(self, entity): |
|
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293 |
if entity.creator: |
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self._marker('dc:creator', entity.dc_creator()) |
295 |
||
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296 |
def _marker(self, marker, value): |
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297 |
if value: |
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self.w(u' <%s>%s</%s>\n' % (marker, xml_escape(value), marker)) |