author | Sylvain Thénault <sylvain.thenault@logilab.fr> |
Fri, 15 Oct 2010 11:33:06 +0200 | |
changeset 6500 | e288df2e2f18 |
parent 5890 | 141b935a38fc |
child 6542 | f13c47ac9137 |
permissions | -rw-r--r-- |
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# copyright 2003-2010 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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"""abstract controller classe for CubicWeb web client""" |
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__docformat__ = "restructuredtext en" |
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from logilab.mtconverter import xml_escape |
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from cubicweb.selectors import yes |
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from cubicweb.appobject import AppObject |
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from cubicweb.mail import format_mail |
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from cubicweb.web import LOGGER, Redirect, RequestError |
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NAVIGATION_PARAMETERS = (('vid', '__redirectvid'), |
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('rql', '__redirectrql'), |
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('__redirectpath', '__redirectpath'), |
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('__redirectparams', '__redirectparams'), |
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) |
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NAV_FORM_PARAMETERS = tuple(fp for ap, fp in NAVIGATION_PARAMETERS) |
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def redirect_params(form): |
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"""transform redirection parameters into navigation parameters |
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""" |
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params = {} |
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# extract navigation parameters from redirection parameters |
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for navparam, redirectparam in NAVIGATION_PARAMETERS: |
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if navparam == redirectparam: |
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continue |
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if redirectparam in form: |
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params[navparam] = form[redirectparam] |
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return params |
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def append_url_params(url, params): |
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"""append raw parameters to the url. Given parameters, if any, are expected |
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to be already url-quoted. |
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""" |
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if params: |
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if not '?' in url: |
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url += '?' |
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else: |
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url += '&' |
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url += params |
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return url |
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class Controller(AppObject): |
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"""a controller is responsible to make necessary stuff to publish |
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a request. There is usually at least one standard "view" controller |
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and another linked by forms to edit objects ("edit"). |
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""" |
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__registry__ = 'controllers' |
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__select__ = yes() |
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def __init__(self, *args, **kwargs): |
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self.appli = kwargs.pop('appli', None) |
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super(Controller, self).__init__(*args, **kwargs) |
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# attributes use to control after edition redirection |
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self._after_deletion_path = None |
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self._edited_entity = None |
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def publish(self, rset=None): |
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"""publish the current request, with an optional input rset""" |
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raise NotImplementedError |
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# generic methods useful for concrete implementations ###################### |
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def process_rql(self): |
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"""execute rql if specified""" |
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req = self._cw |
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rql = req.form.get('rql') |
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if rql: |
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req.ensure_ro_rql(rql) |
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if not isinstance(rql, unicode): |
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rql = unicode(rql, req.encoding) |
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pp = req.vreg['components'].select_or_none('magicsearch', req) |
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if pp is not None: |
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return pp.process_query(rql) |
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if 'eid' in req.form: |
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return req.eid_rset(req.form['eid']) |
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return None |
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def notify_edited(self, entity): |
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"""called by edit_entity() to notify which entity is edited""" |
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# NOTE: we can't use entity.rest_path() at this point because |
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# rest_path() could rely on schema constraints (such as a required |
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# relation) that might not be satisfied yet (in case of creations) |
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if not self._edited_entity: |
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self._edited_entity = entity |
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def validate_cache(self, view): |
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view.set_http_cache_headers() |
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self._cw.validate_cache() |
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def sendmail(self, recipient, subject, body): |
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senderemail = self._cw.user.cw_adapt_to('IEmailable').get_email() |
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msg = format_mail({'email' : senderemail, |
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'name' : self._cw.user.dc_title(),}, |
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[recipient], body, subject) |
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if not self._cw.vreg.config.sendmails([(msg, [recipient])]): |
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msg = self._cw._('could not connect to the SMTP server') |
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url = self._cw.build_url(__message=msg) |
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raise Redirect(url) |
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def reset(self): |
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"""reset form parameters and redirect to a view determinated by given |
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parameters |
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""" |
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newparams = {} |
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# sets message if needed |
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if self._cw.message: |
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newparams['_cwmsgid'] = self._cw.set_redirect_message(self._cw.message) |
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if self._cw.form.has_key('__action_apply'): |
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self._return_to_edition_view(newparams) |
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if self._cw.form.has_key('__action_cancel'): |
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self._return_to_lastpage(newparams) |
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else: |
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self._return_to_original_view(newparams) |
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def _return_to_original_view(self, newparams): |
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"""validate-button case""" |
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# transforms __redirect[*] parameters into regular form parameters |
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newparams.update(redirect_params(self._cw.form)) |
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# find out if we have some explicit `rql` needs |
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rql = newparams.pop('rql', None) |
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# if rql is needed (explicit __redirectrql or multiple deletions for |
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# instance), we have to use the old `view?rql=...` form |
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if rql: |
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path = 'view' |
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newparams['rql'] = rql |
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elif '__redirectpath' in self._cw.form: |
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# if redirect path was explicitly specified in the form, use it |
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path = self._cw.form['__redirectpath'] |
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if (self._edited_entity and path != self._edited_entity.rest_path() |
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and '_cwmsgid' in newparams): |
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# XXX may be here on modification? |
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152 |
msg = u'(<a href="%s">%s</a>)' % ( |
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xml_escape(self._edited_entity.absolute_url()), |
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self._cw._('click here to see created entity')) |
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self._cw.append_to_redirect_message(msg) |
0 | 156 |
elif self._after_deletion_path: |
157 |
# else it should have been set during form processing |
|
158 |
path, params = self._after_deletion_path |
|
159 |
params = dict(params) # params given as tuple |
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params.update(newparams) |
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161 |
newparams = params |
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elif self._edited_entity: |
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00782905b720
[form controller] clear caches in case some attribute participating to the rest path has been modified, avoid redirection to a no more existant page (fix #753567)
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
4897
diff
changeset
|
163 |
# clear caches in case some attribute participating to the rest path |
00782905b720
[form controller] clear caches in case some attribute participating to the rest path has been modified, avoid redirection to a no more existant page (fix #753567)
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
4897
diff
changeset
|
164 |
# has been modified |
00782905b720
[form controller] clear caches in case some attribute participating to the rest path has been modified, avoid redirection to a no more existant page (fix #753567)
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
4897
diff
changeset
|
165 |
self._edited_entity.clear_all_caches() |
0 | 166 |
path = self._edited_entity.rest_path() |
167 |
else: |
|
168 |
path = 'view' |
|
3460
e4843535db25
[api] some more _cw / __regid__, automatic tests now pass again
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
2890
diff
changeset
|
169 |
url = self._cw.build_url(path, **newparams) |
3655
af86ab65a282
3.6 updates
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
3460
diff
changeset
|
170 |
url = append_url_params(url, self._cw.form.get('__redirectparams')) |
0 | 171 |
raise Redirect(url) |
1433 | 172 |
|
0 | 173 |
def _return_to_edition_view(self, newparams): |
174 |
"""apply-button case""" |
|
3655
af86ab65a282
3.6 updates
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
3460
diff
changeset
|
175 |
form = self._cw.form |
0 | 176 |
if self._edited_entity: |
177 |
path = self._edited_entity.rest_path() |
|
178 |
newparams.pop('rql', None) |
|
179 |
# else, fallback on the old `view?rql=...` url form |
|
3655
af86ab65a282
3.6 updates
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
3460
diff
changeset
|
180 |
elif 'rql' in self._cw.form: |
0 | 181 |
path = 'view' |
182 |
newparams['rql'] = form['rql'] |
|
183 |
else: |
|
4897
e402e0b32075
[web] start a new message system based on id of message stored in session's data
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
4884
diff
changeset
|
184 |
self.warning('the edited data seems inconsistent') |
0 | 185 |
path = 'view' |
186 |
# pick up the correction edition view |
|
187 |
if form.get('__form_id'): |
|
188 |
newparams['vid'] = form['__form_id'] |
|
189 |
# re-insert copy redirection parameters |
|
190 |
for redirectparam in NAV_FORM_PARAMETERS: |
|
191 |
if redirectparam in form: |
|
192 |
newparams[redirectparam] = form[redirectparam] |
|
3460
e4843535db25
[api] some more _cw / __regid__, automatic tests now pass again
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
2890
diff
changeset
|
193 |
raise Redirect(self._cw.build_url(path, **newparams)) |
0 | 194 |
|
195 |
||
196 |
def _return_to_lastpage(self, newparams): |
|
197 |
"""cancel-button case: in this case we are always expecting to go back |
|
198 |
where we came from, and this is not easy. Currently we suppose that |
|
199 |
__redirectpath is specifying that place if found, else we look in the |
|
200 |
request breadcrumbs for the last visited page. |
|
201 |
""" |
|
3655
af86ab65a282
3.6 updates
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
3460
diff
changeset
|
202 |
if '__redirectpath' in self._cw.form: |
0 | 203 |
# if redirect path was explicitly specified in the form, use it |
3655
af86ab65a282
3.6 updates
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
3460
diff
changeset
|
204 |
path = self._cw.form['__redirectpath'] |
3460
e4843535db25
[api] some more _cw / __regid__, automatic tests now pass again
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
2890
diff
changeset
|
205 |
url = self._cw.build_url(path, **newparams) |
3655
af86ab65a282
3.6 updates
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
3460
diff
changeset
|
206 |
url = append_url_params(url, self._cw.form.get('__redirectparams')) |
0 | 207 |
else: |
3655
af86ab65a282
3.6 updates
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
3460
diff
changeset
|
208 |
url = self._cw.last_visited_page() |
0 | 209 |
raise Redirect(url) |
210 |
||
211 |
||
212 |
from cubicweb import set_log_methods |
|
213 |
set_log_methods(Controller, LOGGER) |
|
214 |