web/views/editviews.py
author Sylvain Thénault <sylvain.thenault@logilab.fr>
Wed, 28 Apr 2010 12:15:52 +0200
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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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"""Some views used to help to the edition process
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"""
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__docformat__ = "restructuredtext en"
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_ = unicode
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from logilab.common.decorators import cached
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from logilab.mtconverter import xml_escape
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from cubicweb import typed_eid
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from cubicweb.view import EntityView, StartupView
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from cubicweb.selectors import (one_line_rset, non_final_entity,
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                                match_search_state)
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from cubicweb.web import httpcache
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from cubicweb.web.views import baseviews, linksearch_select_url
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class SearchForAssociationView(EntityView):
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    """view called by the edition view when the user asks to search for
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    something to link to the edited eid
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    """
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    __regid__ = 'search-associate'
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    __select__ = (one_line_rset() & match_search_state('linksearch')
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                  & non_final_entity())
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    title = _('search for association')
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    def cell_call(self, row, col):
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        rset, vid, divid, paginate = self.filter_box_context_info()
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        self.cw_rset = rset
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        self.w(u'<div id="%s">' % divid)
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        self.paginate()
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        self.wview(vid, rset, 'noresult')
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        self.w(u'</div>')
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    @cached
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    def filter_box_context_info(self):
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        entity = self.cw_rset.get_entity(0, 0)
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        role, eid, rtype, etype = self._cw.search_state[1]
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        assert entity.eid == typed_eid(eid)
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        # the default behaviour is to fetch all unrelated entities and display
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        # them. Use fetch_order and not fetch_unrelated_order as sort method
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        # since the latter is mainly there to select relevant items in the combo
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        # box, it doesn't give interesting result in this context
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        rql, args = entity.unrelated_rql(rtype, etype, role,
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                                         ordermethod='fetch_order',
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                                         vocabconstraints=False)
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        rset = self._cw.execute(rql, args, tuple(args))
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        return rset, 'list', "search-associate-content", True
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class OutOfContextSearch(EntityView):
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    __regid__ = 'outofcontext-search'
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    def cell_call(self, row, col):
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        entity = self.cw_rset.get_entity(row, col)
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        erset = entity.as_rset()
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        if self._cw.match_search_state(erset):
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            self.w(u'<a href="%s" title="%s">%s</a>&#160;<a href="%s" title="%s">[...]</a>' % (
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                xml_escape(linksearch_select_url(self._cw, erset)),
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                self._cw._('select this entity'),
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                xml_escape(entity.view('textoutofcontext')),
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                xml_escape(entity.absolute_url(vid='primary')),
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                self._cw._('view detail for this entity')))
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        else:
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            entity.view('outofcontext', w=self.w)
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class ComboboxView(EntityView):
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    """the view used in combobox (unrelated entities)
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    THIS IS A TEXT VIEW. DO NOT HTML_ESCAPE
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    """
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    __regid__ = 'combobox'
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    title = None
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    def cell_call(self, row, col):
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        """the combo-box view for an entity: same as text out of context view
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        by default
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        """
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        self.wview('textoutofcontext', self.cw_rset, row=row, col=col)
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class EditableFinalView(baseviews.FinalView):
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    """same as FinalView but enables inplace-edition when possible"""
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    __regid__ = 'editable-final'
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    def cell_call(self, row, col, props=None):
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        entity, rtype = self.cw_rset.related_entity(row, col)
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        if entity is not None:
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            self.w(entity.view('reledit', rtype=rtype))
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        else:
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            super(EditableFinalView, self).cell_call(row, col, props)
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try:
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    from cubicweb.web import captcha
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except ImportError:
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    # PIL not installed
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    pass
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else:
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    class CaptchaView(StartupView):
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        __regid__ = 'captcha'
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        http_cache_manager = httpcache.NoHTTPCacheManager
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        binary = True
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        templatable = False
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        content_type = 'image/jpg'
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        def call(self):
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            text, data = captcha.captcha(self._cw.vreg.config['captcha-font-file'],
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                                         self._cw.vreg.config['captcha-font-size'])
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            key = self._cw.form.get('captchakey', 'captcha')
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            self._cw.set_session_data(key, text)
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            self.w(data.read())