# copyright 2003-2011 LOGILAB S.A. (Paris, FRANCE), all rights reserved.
# contact http://www.logilab.fr/ -- mailto:contact@logilab.fr
#
# This file is part of CubicWeb.
#
# CubicWeb is free software: you can redistribute it and/or modify it under the
# terms of the GNU Lesser General Public License as published by the Free
# Software Foundation, either version 2.1 of the License, or (at your option)
# any later version.
#
# CubicWeb is distributed in the hope that it will be useful, but WITHOUT
# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
# FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
# details.
#
# You should have received a copy of the GNU Lesser General Public License along
# with CubicWeb. If not, see <http://www.gnu.org/licenses/>.
"""generic table view, including filtering abilities using facets"""
__docformat__ = "restructuredtext en"
_ = unicode
from logilab.mtconverter import xml_escape
from cubicweb import NoSelectableObject, tags
from cubicweb.selectors import nonempty_rset
from cubicweb.utils import make_uid, js_dumps, JSString
from cubicweb.view import EntityView, AnyRsetView
from cubicweb.uilib import toggle_action, limitsize, htmlescape
from cubicweb.web import jsonize, component, facet
from cubicweb.web.htmlwidgets import (TableWidget, TableColumn, MenuWidget,
PopupBoxMenu)
class TableView(AnyRsetView):
"""The table view accepts any non-empty rset. It uses introspection on the
result set to compute column names and the proper way to display the cells.
It is however highly configurable and accepts a wealth of options.
"""
__regid__ = 'table'
title = _('table')
finalview = 'final'
table_widget_class = TableWidget
table_column_class = TableColumn
tablesorter_settings = {
'textExtraction': JSString('cubicwebSortValueExtraction'),
}
def form_filter(self, divid, displaycols, displayactions, displayfilter,
paginate, hidden=True):
try:
filterform = self._cw.vreg['views'].select(
'facet.filtertable', self._cw, rset=self.cw_rset)
except NoSelectableObject:
return ()
vidargs = {'paginate': paginate,
'displaycols': displaycols,
'displayactions': displayactions,
'displayfilter': displayfilter}
cssclass = hidden and 'hidden' or ''
filterform.render(self.w, vid=self.__regid__, divid=divid,
vidargs=vidargs, cssclass=cssclass)
return self.show_hide_actions(divid, not hidden)
def main_var_index(self):
"""returns the index of the first non-attribute variable among the RQL
selected variables
"""
eschema = self._cw.vreg.schema.eschema
for i, etype in enumerate(self.cw_rset.description[0]):
try:
if not eschema(etype).final:
return i
except KeyError: # XXX possible?
continue
return None
def displaycols(self, displaycols, headers):
if displaycols is None:
if 'displaycols' in self._cw.form:
displaycols = [int(idx) for idx in self._cw.form['displaycols']]
elif headers is not None:
displaycols = range(len(headers))
else:
displaycols = range(len(self.cw_rset.syntax_tree().children[0].selection))
return displaycols
def _setup_tablesorter(self, divid):
req = self._cw
req.add_js('jquery.tablesorter.js')
req.add_onload('''$(document).ready(function() {
$("#%s table.listing").tablesorter(%s);
});''' % (divid, js_dumps(self.tablesorter_settings)))
req.add_css(('cubicweb.tablesorter.css', 'cubicweb.tableview.css'))
def call(self, title=None, subvid=None, displayfilter=None, headers=None,
displaycols=None, displayactions=None, actions=(), divid=None,
cellvids=None, cellattrs=None, mainindex=None,
paginate=False, page_size=None):
"""Produces a table displaying a composite query
:param title: title added before table
:param subvid: cell view
:param displayfilter: filter that selects rows to display
:param headers: columns' titles
:param displaycols: indexes of columns to display (first column is 0)
:param displayactions: if True, display action menu
"""
req = self._cw
divid = divid or req.form.get('divid') or 'rs%s' % make_uid(id(self.cw_rset))
self._setup_tablesorter(divid)
# compute label first since the filter form may remove some necessary
# information from the rql syntax tree
if mainindex is None:
mainindex = self.main_var_index()
computed_labels = self.columns_labels(mainindex)
hidden = True
if not subvid and 'subvid' in req.form:
subvid = req.form.pop('subvid')
actions = list(actions)
if mainindex is None:
displayfilter, displayactions = False, False
else:
if displayfilter is None and req.form.get('displayfilter'):
displayfilter = True
if req.form['displayfilter'] == 'shown':
hidden = False
if displayactions is None and req.form.get('displayactions'):
displayactions = True
displaycols = self.displaycols(displaycols, headers)
fromformfilter = 'fromformfilter' in req.form
# if fromformfilter is true, this is an ajax call and we only want to
# replace the inner div, so don't regenerate everything under the if
# below
if not fromformfilter:
self.w(u'<div class="section">')
if not title and 'title' in req.form:
title = req.form['title']
if title:
self.w(u'<h2 class="tableTitle">%s</h2>\n' % title)
if displayfilter:
actions += self.form_filter(divid, displaycols, displayfilter,
displayactions, paginate)
elif displayfilter:
actions += self.show_hide_actions(divid, True)
self.w(u'<div id="%s">' % divid)
if displayactions:
actionsbycat = self._cw.vreg['actions'].possible_actions(req, self.cw_rset)
for action in actionsbycat.get('mainactions', ()):
for action in action.actual_actions():
actions.append( (action.url(), req._(action.title),
action.html_class(), None) )
# render actions menu
if actions:
self.render_actions(divid, actions)
# render table
if paginate:
self.divid = divid # XXX iirk (see usage in page_navigation_url)
self.paginate(page_size=page_size, show_all_option=False)
table = self.table_widget_class(self)
for column in self.get_columns(computed_labels, displaycols, headers,
subvid, cellvids, cellattrs, mainindex):
table.append_column(column)
table.render(self.w)
self.w(u'</div>\n')
if not fromformfilter:
self.w(u'</div>\n')
def page_navigation_url(self, navcomp, path, params):
if hasattr(self, 'divid'):
params['divid'] = self.divid
params['vid'] = self.__regid__
return navcomp.ajax_page_url(**params)
def show_hide_actions(self, divid, currentlydisplayed=False):
showhide = u';'.join(toggle_action('%s%s' % (divid, what))[11:]
for what in ('Form', 'Show', 'Hide', 'Actions'))
showhide = 'javascript:' + showhide
showlabel = self._cw._('show filter form')
hidelabel = self._cw._('hide filter form')
if currentlydisplayed:
return [(showhide, showlabel, 'hidden', '%sShow' % divid),
(showhide, hidelabel, None, '%sHide' % divid)]
return [(showhide, showlabel, None, '%sShow' % divid),
(showhide, hidelabel, 'hidden', '%sHide' % divid)]
def render_actions(self, divid, actions):
box = MenuWidget('', 'tableActionsBox', _class='', islist=False)
label = tags.img(src=self._cw.uiprops['PUCE_DOWN'],
alt=xml_escape(self._cw._('action(s) on this selection')))
menu = PopupBoxMenu(label, isitem=False, link_class='actionsBox',
ident='%sActions' % divid)
box.append(menu)
for url, label, klass, ident in actions:
menu.append(component.Link(url, label, klass=klass, id=ident))
box.render(w=self.w)
self.w(u'<div class="clear"/>')
def get_columns(self, computed_labels, displaycols, headers, subvid,
cellvids, cellattrs, mainindex):
columns = []
eschema = self._cw.vreg.schema.eschema
for colindex, label in enumerate(computed_labels):
if colindex not in displaycols:
continue
# compute column header
if headers is not None:
label = headers[displaycols.index(colindex)]
if colindex == mainindex and label is not None:
label += ' (%s)' % self.cw_rset.rowcount
column = self.table_column_class(label, colindex)
coltype = self.cw_rset.description[0][colindex]
# compute column cell view (if coltype is None, it's a left outer
# join, use the default non final subvid)
if cellvids and colindex in cellvids:
column.append_renderer(cellvids[colindex], colindex)
elif coltype is not None and eschema(coltype).final:
column.append_renderer(self.finalview, colindex)
else:
column.append_renderer(subvid or 'incontext', colindex)
if cellattrs and colindex in cellattrs:
for name, value in cellattrs[colindex].iteritems():
column.add_attr(name, value)
# add column
columns.append(column)
return columns
def render_cell(self, cellvid, row, col, w):
self._cw.view('cell', self.cw_rset, row=row, col=col, cellvid=cellvid, w=w)
def get_rows(self):
return self.cw_rset
@htmlescape
@jsonize
@limitsize(10)
def sortvalue(self, row, col):
# XXX it might be interesting to try to limit value's
# length as much as possible (e.g. by returning the 10
# first characters of a string)
val = self.cw_rset[row][col]
if val is None:
return u''
etype = self.cw_rset.description[row][col]
if etype is None:
return u''
if self._cw.vreg.schema.eschema(etype).final:
entity, rtype = self.cw_rset.related_entity(row, col)
if entity is None:
return val # remove_html_tags() ?
return entity.sortvalue(rtype)
entity = self.cw_rset.get_entity(row, col)
return entity.sortvalue()
class EditableTableView(TableView):
__regid__ = 'editable-table'
finalview = 'editable-final'
title = _('editable-table')
class CellView(EntityView):
__regid__ = 'cell'
__select__ = nonempty_rset()
def cell_call(self, row, col, cellvid=None):
"""
:param row, col: indexes locating the cell value in view's result set
:param cellvid: cell view (defaults to 'outofcontext')
"""
etype, val = self.cw_rset.description[row][col], self.cw_rset[row][col]
if etype is None or not self._cw.vreg.schema.eschema(etype).final:
if val is None:
# This is usually caused by a left outer join and in that case,
# regular views will most certainly fail if they don't have
# a real eid
# XXX if cellvid is e.g. reledit, we may wanna call it anyway
self.w(u' ')
else:
self.wview(cellvid or 'outofcontext', self.cw_rset, row=row, col=col)
else:
# XXX why do we need a fallback view here?
self.wview(cellvid or 'final', self.cw_rset, 'null', row=row, col=col)
class InitialTableView(TableView):
"""same display as table view but consider two rql queries :
* the default query (ie `rql` form parameter), which is only used to select
this view and to build the filter form. This query should have the same
structure as the actual without actual restriction (but link to
restriction variables) and usually with a limit for efficiency (limit set
to 2 is advised)
* the actual query (`actualrql` form parameter) whose results will be
displayed with default restrictions set
"""
__regid__ = 'initialtable'
__select__ = nonempty_rset()
# should not be displayed in possible view since it expects some specific
# parameters
title = None
def call(self, title=None, subvid=None, headers=None, divid=None,
paginate=False, displaycols=None, displayactions=None,
mainindex=None):
"""Dumps a table displaying a composite query"""
try:
actrql = self._cw.form['actualrql']
except KeyError:
actrql = self.cw_rset.printable_rql()
else:
self._cw.ensure_ro_rql(actrql)
displaycols = self.displaycols(displaycols, headers)
if displayactions is None and 'displayactions' in self._cw.form:
displayactions = True
if divid is None and 'divid' in self._cw.form:
divid = self._cw.form['divid']
self.w(u'<div class="section">')
if not title and 'title' in self._cw.form:
# pop title so it's not displayed by the table view as well
title = self._cw.form.pop('title')
if title:
self.w(u'<h2>%s</h2>\n' % title)
if mainindex is None:
mainindex = self.main_var_index()
if mainindex is not None:
actions = self.form_filter(divid, displaycols, displayactions,
displayfilter=True, paginate=paginate,
hidden=True)
else:
actions = ()
if not subvid and 'subvid' in self._cw.form:
subvid = self._cw.form.pop('subvid')
self._cw.view('table', self._cw.execute(actrql),
'noresult', w=self.w, displayfilter=False, subvid=subvid,
displayactions=displayactions, displaycols=displaycols,
actions=actions, headers=headers, divid=divid)
self.w(u'</div>\n')
class EditableInitialTableTableView(InitialTableView):
__regid__ = 'editable-initialtable'
finalview = 'editable-final'
class EntityAttributesTableView(EntityView):
"""This table displays entity attributes in a table and allow to set a
specific method to help building cell content for each attribute as well as
column header.
Table will render entity cell by using the appropriate build_COLNAME_cell
methods if defined otherwise cell content will be entity.COLNAME.
Table will render column header using the method header_for_COLNAME if
defined otherwise COLNAME will be used.
"""
__abstract__ = True
columns = ()
table_css = "listing"
css_files = ()
def call(self, columns=None):
if self.css_files:
self._cw.add_css(self.css_files)
_ = self._cw._
self.columns = columns or self.columns
sample = self.cw_rset.get_entity(0, 0)
self.w(u'<table class="%s">' % self.table_css)
self.table_header(sample)
self.w(u'<tbody>')
for row in xrange(self.cw_rset.rowcount):
self.cell_call(row=row, col=0)
self.w(u'</tbody>')
self.w(u'</table>')
def cell_call(self, row, col):
_ = self._cw._
entity = self.cw_rset.get_entity(row, col)
entity.complete()
infos = {}
for col in self.columns:
meth = getattr(self, 'build_%s_cell' % col, None)
# find the build method or try to find matching attribute
if meth:
content = meth(entity)
else:
content = entity.printable_value(col)
infos[col] = content
self.w(u"""<tr onmouseover="$(this).addClass('highlighted');"
onmouseout="$(this).removeClass('highlighted')">""")
line = u''.join(u'<td>%%(%s)s</td>' % col for col in self.columns)
self.w(line % infos)
self.w(u'</tr>\n')
def table_header(self, sample):
"""builds the table's header"""
self.w(u'<thead><tr>')
for column in self.columns:
meth = getattr(self, 'header_for_%s' % column, None)
if meth:
colname = meth(sample)
else:
colname = self._cw._(column)
self.w(u'<th>%s</th>' % xml_escape(colname))
self.w(u'</tr></thead>\n')