web/views/tableview.py
author Sylvain Thénault <sylvain.thenault@logilab.fr>
Thu, 29 Sep 2011 14:47:04 +0200
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parent 7883 cd98785b4a84
child 7907 08320697ca1a
permissions -rw-r--r--
backport stable
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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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"""generic table view, including filtering abilities using facets"""
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__docformat__ = "restructuredtext en"
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_ = unicode
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from logilab.mtconverter import xml_escape
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from cubicweb import NoSelectableObject, tags
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from cubicweb.selectors import nonempty_rset
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from cubicweb.utils import make_uid, json_dumps
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from cubicweb.view import EntityView, AnyRsetView
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from cubicweb.uilib import toggle_action, limitsize, htmlescape
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from cubicweb.web import jsonize, component, facet
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from cubicweb.web.htmlwidgets import (TableWidget, TableColumn, MenuWidget,
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                                      PopupBoxMenu)
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class TableView(AnyRsetView):
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    """The table view accepts any non-empty rset. It uses introspection on the
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    result set to compute column names and the proper way to display the cells.
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    It is however highly configurable and accepts a wealth of options.
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    """
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    __regid__ = 'table'
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    title = _('table')
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    finalview = 'final'
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    table_widget_class = TableWidget
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    table_column_class = TableColumn
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    def form_filter(self, divid, displaycols, displayactions, displayfilter,
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                    paginate, hidden=True):
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        try:
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            filterform = self._cw.vreg['views'].select(
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                'facet.filtertable', self._cw, rset=self.cw_rset)
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        except NoSelectableObject:
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            return ()
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        vidargs = {'paginate': paginate,
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                   'displaycols': displaycols,
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                   'displayactions': displayactions,
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                   'displayfilter': displayfilter}
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        cssclass = hidden and 'hidden' or ''
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        filterform.render(self.w, vid=self.__regid__, divid=divid,
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                          vidargs=vidargs, cssclass=cssclass)
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        return self.show_hide_actions(divid, not hidden)
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    def main_var_index(self):
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        """returns the index of the first non-attribute variable among the RQL
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        selected variables
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        """
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        eschema = self._cw.vreg.schema.eschema
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        for i, etype in enumerate(self.cw_rset.description[0]):
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            try:
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                if not eschema(etype).final:
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                    return i
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            except KeyError: # XXX possible?
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                continue
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        return None
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    def displaycols(self, displaycols, headers):
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        if displaycols is None:
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            if 'displaycols' in self._cw.form:
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                displaycols = [int(idx) for idx in self._cw.form['displaycols']]
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            elif headers is not None:
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                displaycols = range(len(headers))
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            else:
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                displaycols = range(len(self.cw_rset.syntax_tree().children[0].selection))
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        return displaycols
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    def call(self, title=None, subvid=None, displayfilter=None, headers=None,
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             displaycols=None, displayactions=None, actions=(), divid=None,
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             cellvids=None, cellattrs=None, mainindex=None,
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             paginate=False, page_size=None):
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        """Produces a table displaying a composite query
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        :param title: title added before table
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        :param subvid: cell view
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        :param displayfilter: filter that selects rows to display
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        :param headers: columns' titles
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        :param displaycols: indexes of columns to display (first column is 0)
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        :param displayactions: if True, display action menu
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        """
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        req = self._cw
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        req.add_js('jquery.tablesorter.js')
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        req.add_css(('cubicweb.tablesorter.css', 'cubicweb.tableview.css'))
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        # compute label first  since the filter form may remove some necessary
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        # information from the rql syntax tree
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        if mainindex is None:
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            mainindex = self.main_var_index()
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        computed_labels = self.columns_labels(mainindex)
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        hidden = True
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        if not subvid and 'subvid' in req.form:
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            subvid = req.form.pop('subvid')
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        divid = divid or req.form.get('divid') or 'rs%s' % make_uid(id(self.cw_rset))
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        actions = list(actions)
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        if mainindex is None:
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            displayfilter, displayactions = False, False
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        else:
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            if displayfilter is None and req.form.get('displayfilter'):
0
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                displayfilter = True
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                if req.form['displayfilter'] == 'shown':
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                    hidden = False
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            if displayactions is None and req.form.get('displayactions'):
0
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                displayactions = True
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        displaycols = self.displaycols(displaycols, headers)
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        fromformfilter = 'fromformfilter' in req.form
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        # if fromformfilter is true, this is an ajax call and we only want to
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        # replace the inner div, so don't regenerate everything under the if
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        # below
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        if not fromformfilter:
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            self.w(u'<div class="section">')
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            if not title and 'title' in req.form:
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                title = req.form['title']
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            if title:
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                self.w(u'<h2 class="tableTitle">%s</h2>\n' % title)
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            if displayfilter:
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                actions += self.form_filter(divid, displaycols, displayfilter,
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                                            displayactions, paginate)
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        elif displayfilter:
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            actions += self.show_hide_actions(divid, True)
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        self.w(u'<div id="%s">' % divid)
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        if displayactions:
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            actionsbycat = self._cw.vreg['actions'].possible_actions(req, self.cw_rset)
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            for action in actionsbycat.get('mainactions', ()):
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                for action in action.actual_actions():
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                    actions.append( (action.url(), req._(action.title),
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                                     action.html_class(), None) )
0
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        # render actions menu
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        if actions:
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            self.render_actions(divid, actions)
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        # render table
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        if paginate:
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            self.divid = divid # XXX iirk (see usage in page_navigation_url)
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            self.paginate(page_size=page_size, show_all_option=False)
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        table = self.table_widget_class(self)
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        for column in self.get_columns(computed_labels, displaycols, headers,
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                                       subvid, cellvids, cellattrs, mainindex):
0
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            table.append_column(column)
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        table.render(self.w)
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        self.w(u'</div>\n')
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        if not fromformfilter:
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            self.w(u'</div>\n')
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    def page_navigation_url(self, navcomp, path, params):
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        if hasattr(self, 'divid'):
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            params['divid'] = self.divid
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        params['vid'] = self.__regid__
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        return navcomp.ajax_page_url(**params)
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   166
0
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    def show_hide_actions(self, divid, currentlydisplayed=False):
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        showhide = u';'.join(toggle_action('%s%s' % (divid, what))[11:]
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                             for what in ('Form', 'Show', 'Hide', 'Actions'))
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        showhide = 'javascript:' + showhide
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        showlabel = self._cw._('show filter form')
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        hidelabel = self._cw._('hide filter form')
0
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        if currentlydisplayed:
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            return [(showhide, showlabel, 'hidden', '%sShow' % divid),
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                    (showhide, hidelabel, None, '%sHide' % divid)]
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        return [(showhide, showlabel, None, '%sShow' % divid),
0
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                (showhide, hidelabel, 'hidden', '%sHide' % divid)]
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    def render_actions(self, divid, actions):
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        box = MenuWidget('', 'tableActionsBox', _class='', islist=False)
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        label = tags.img(src=self._cw.uiprops['PUCE_DOWN'],
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                         alt=xml_escape(self._cw._('action(s) on this selection')))
0
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        menu = PopupBoxMenu(label, isitem=False, link_class='actionsBox',
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                            ident='%sActions' % divid)
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        box.append(menu)
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        for url, label, klass, ident in actions:
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            menu.append(component.Link(url, label, klass=klass, id=ident))
0
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        box.render(w=self.w)
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        self.w(u'<div class="clear"/>')
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   190
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    def get_columns(self, computed_labels, displaycols, headers, subvid,
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                    cellvids, cellattrs, mainindex):
0
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        columns = []
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        eschema = self._cw.vreg.schema.eschema
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        for colindex, label in enumerate(computed_labels):
0
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            if colindex not in displaycols:
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                continue
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            # compute column header
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            if headers is not None:
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                _label = headers[displaycols.index(colindex)]
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                if _label is not None:
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   202
                    label = _label
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   203
            if colindex == mainindex and label is not None:
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   204
                label += ' (%s)' % self.cw_rset.rowcount
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            column = self.table_column_class(label, colindex)
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            coltype = self.cw_rset.description[0][colindex]
0
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            # compute column cell view (if coltype is None, it's a left outer
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            # join, use the default non final subvid)
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            if cellvids and colindex in cellvids:
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                column.append_renderer(cellvids[colindex], colindex)
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diff changeset
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            elif coltype is not None and eschema(coltype).final:
0
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                column.append_renderer(self.finalview, colindex)
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            else:
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                column.append_renderer(subvid or 'incontext', colindex)
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            if cellattrs and colindex in cellattrs:
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                for name, value in cellattrs[colindex].iteritems():
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diff changeset
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                    column.add_attr(name, value)
0
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            # add column
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            columns.append(column)
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        return columns
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0
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    def render_cell(self, cellvid, row, col, w):
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        self._cw.view('cell', self.cw_rset, row=row, col=col, cellvid=cellvid, w=w)
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0
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    def get_rows(self):
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        return self.cw_rset
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    @htmlescape
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    @jsonize
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    @limitsize(10)
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    def sortvalue(self, row, col):
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        # XXX it might be interesting to try to limit value's
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        #     length as much as possible (e.g. by returning the 10
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        #     first characters of a string)
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        val = self.cw_rset[row][col]
0
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        if val is None:
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            return u''
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        etype = self.cw_rset.description[row][col]
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        if etype is None:
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            return u''
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        if self._cw.vreg.schema.eschema(etype).final:
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            entity, rtype = self.cw_rset.related_entity(row, col)
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            if entity is None:
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                return val # remove_html_tags() ?
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            return entity.sortvalue(rtype)
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        entity = self.cw_rset.get_entity(row, col)
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        return entity.sortvalue()
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0
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class EditableTableView(TableView):
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    __regid__ = 'editable-table'
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    finalview = 'editable-final'
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    title = _('editable-table')
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0
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class CellView(EntityView):
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    __regid__ = 'cell'
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    __select__ = nonempty_rset()
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0
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    def cell_call(self, row, col, cellvid=None):
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        """
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        :param row, col: indexes locating the cell value in view's result set
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        :param cellvid: cell view (defaults to 'outofcontext')
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        """
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        etype, val = self.cw_rset.description[row][col], self.cw_rset[row][col]
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        if etype is None or not self._cw.vreg.schema.eschema(etype).final:
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            if val is None:
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                # This is usually caused by a left outer join and in that case,
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                # regular views will most certainly fail if they don't have
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                # a real eid
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                # XXX if cellvid is e.g. reledit, we may wanna call it anyway
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                self.w(u'&#160;')
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            else:
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                self.wview(cellvid or 'outofcontext', self.cw_rset, row=row, col=col)
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        else:
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            # XXX why do we need a fallback view here?
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            self.wview(cellvid or 'final', self.cw_rset, 'null', row=row, col=col)
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class InitialTableView(TableView):
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    """same display as  table view but consider two rql queries :
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0
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    * the default query (ie `rql` form parameter), which is only used to select
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      this view and to build the filter form. This query should have the same
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      structure as the actual without actual restriction (but link to
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      restriction variables) and usually with a limit for efficiency (limit set
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      to 2 is advised)
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0
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    * the actual query (`actualrql` form parameter) whose results will be
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      displayed with default restrictions set
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    """
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    __regid__ = 'initialtable'
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    __select__ = nonempty_rset()
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    # should not be displayed in possible view since it expects some specific
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    # parameters
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    title = None
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    def call(self, title=None, subvid=None, headers=None, divid=None,
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             paginate=False, displaycols=None, displayactions=None,
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             mainindex=None):
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        """Dumps a table displaying a composite query"""
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        try:
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            actrql = self._cw.form['actualrql']
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        except KeyError:
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            actrql = self.cw_rset.printable_rql()
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        else:
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            self._cw.ensure_ro_rql(actrql)
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        displaycols = self.displaycols(displaycols, headers)
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        if displayactions is None and 'displayactions' in self._cw.form:
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            displayactions = True
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        if divid is None and 'divid' in self._cw.form:
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            divid = self._cw.form['divid']
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        self.w(u'<div class="section">')
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        if not title and 'title' in self._cw.form:
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            # pop title so it's not displayed by the table view as well
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            title = self._cw.form.pop('title')
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        if title:
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            self.w(u'<h2>%s</h2>\n' % title)
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        if mainindex is None:
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            mainindex = self.main_var_index()
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        if mainindex is not None:
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            actions = self.form_filter(divid, displaycols, displayactions,
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                                       displayfilter=True, paginate=paginate,
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                                       hidden=True)
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        else:
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            actions = ()
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        if not subvid and 'subvid' in self._cw.form:
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            subvid = self._cw.form.pop('subvid')
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        self._cw.view('table', self._cw.execute(actrql),
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                      'noresult', w=self.w, displayfilter=False, subvid=subvid,
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                      displayactions=displayactions, displaycols=displaycols,
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                      actions=actions, headers=headers, divid=divid)
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        self.w(u'</div>\n')
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class EditableInitialTableTableView(InitialTableView):
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dd9d292b6a6d use __regid__ instead of id on appobject classes
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    __regid__ = 'editable-initialtable'
0
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    finalview = 'editable-final'
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   341
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class EntityAttributesTableView(EntityView):
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    """This table displays entity attributes in a table and allow to set a
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    specific method to help building cell content for each attribute as well as
e2476d78b060 ticket #787103, relation schema view enhancements
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   345
    column header.
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   346
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   347
    Table will render entity cell by using the appropriate build_COLNAME_cell
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   348
    methods if defined otherwise cell content will be entity.COLNAME.
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   349
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   350
    Table will render column header using the method header_for_COLNAME if
e2476d78b060 ticket #787103, relation schema view enhancements
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   351
    defined otherwise COLNAME will be used.
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   352
    """
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    __abstract__ = True
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   354
    columns = ()
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   355
    table_css = "listing"
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   356
    css_files = ()
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   357
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   358
    def call(self, columns=None):
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   359
        if self.css_files:
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diff changeset
   360
            self._cw.add_css(self.css_files)
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        _ = self._cw._
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   362
        self.columns = columns or self.columns
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9ab2b4c74baf [entity] introduce a new 'adapters' registry
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   363
        sample = self.cw_rset.get_entity(0, 0)
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parents: 4618
diff changeset
   364
        self.w(u'<table class="%s">' % self.table_css)
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9ab2b4c74baf [entity] introduce a new 'adapters' registry
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parents: 5545
diff changeset
   365
        self.table_header(sample)
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diff changeset
   366
        self.w(u'<tbody>')
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   367
        for row in xrange(self.cw_rset.rowcount):
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   368
            self.cell_call(row=row, col=0)
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diff changeset
   369
        self.w(u'</tbody>')
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parents: 4618
diff changeset
   370
        self.w(u'</table>')
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   371
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   372
    def cell_call(self, row, col):
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   373
        _ = self._cw._
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diff changeset
   374
        entity = self.cw_rset.get_entity(row, col)
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   375
        infos = {}
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diff changeset
   376
        for col in self.columns:
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diff changeset
   377
            meth = getattr(self, 'build_%s_cell' % col, None)
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diff changeset
   378
            # find the build method or try to find matching attribute
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   379
            if meth:
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diff changeset
   380
                content = meth(entity)
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diff changeset
   381
            else:
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diff changeset
   382
                content = entity.printable_value(col)
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diff changeset
   383
            infos[col] = content
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29afb9e715bb [3.9] api update (mostly js) + add support for FCKEditor in formContents js function
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diff changeset
   384
        self.w(u"""<tr onmouseover="$(this).addClass('highlighted');"
29afb9e715bb [3.9] api update (mostly js) + add support for FCKEditor in formContents js function
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diff changeset
   385
            onmouseout="$(this).removeClass('highlighted')">""")
5234
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parents: 4618
diff changeset
   386
        line = u''.join(u'<td>%%(%s)s</td>' % col for col in self.columns)
e2476d78b060 ticket #787103, relation schema view enhancements
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diff changeset
   387
        self.w(line % infos)
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parents: 4618
diff changeset
   388
        self.w(u'</tr>\n')
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parents: 4618
diff changeset
   389
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9ab2b4c74baf [entity] introduce a new 'adapters' registry
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diff changeset
   390
    def table_header(self, sample):
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e2476d78b060 ticket #787103, relation schema view enhancements
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diff changeset
   391
        """builds the table's header"""
e2476d78b060 ticket #787103, relation schema view enhancements
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parents: 4618
diff changeset
   392
        self.w(u'<thead><tr>')
e2476d78b060 ticket #787103, relation schema view enhancements
Sandrine Ribeau <sandrine.ribeau@logilab.fr>
parents: 4618
diff changeset
   393
        for column in self.columns:
e2476d78b060 ticket #787103, relation schema view enhancements
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diff changeset
   394
            meth = getattr(self, 'header_for_%s' % column, None)
e2476d78b060 ticket #787103, relation schema view enhancements
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parents: 4618
diff changeset
   395
            if meth:
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9ab2b4c74baf [entity] introduce a new 'adapters' registry
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diff changeset
   396
                colname = meth(sample)
5234
e2476d78b060 ticket #787103, relation schema view enhancements
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diff changeset
   397
            else:
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9ab2b4c74baf [entity] introduce a new 'adapters' registry
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diff changeset
   398
                colname = self._cw._(column)
5234
e2476d78b060 ticket #787103, relation schema view enhancements
Sandrine Ribeau <sandrine.ribeau@logilab.fr>
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diff changeset
   399
            self.w(u'<th>%s</th>' % xml_escape(colname))
e2476d78b060 ticket #787103, relation schema view enhancements
Sandrine Ribeau <sandrine.ribeau@logilab.fr>
parents: 4618
diff changeset
   400
        self.w(u'</tr></thead>\n')
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parents: 4618
diff changeset
   401
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parents: 4618
diff changeset
   402