author | Aurelien Campeas <aurelien.campeas@logilab.fr> |
Wed, 09 May 2012 17:15:44 +0200 | |
changeset 8394 | b8b23af60019 |
parent 8190 | 2a3c1b787688 |
child 8551 | 6cf9e4da54a9 |
permissions | -rw-r--r-- |
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[vreg] move base registry implementation to logilab.common. Closes #1916014
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# copyright 2003-2012 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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"""the facets box and some basic facets""" |
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__docformat__ = "restructuredtext en" |
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[pylint] fix a bug of pylint detected errors and i18n pb (calling builtins._ instead of req._)
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_ = unicode |
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add missing imports
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from warnings import warn |
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use xml_escape
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from logilab.mtconverter import xml_escape |
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[facets] do no stretch to the right when there are many facets; instead use a floating layout (closes #2093160)
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from logilab.common.decorators import cachedproperty |
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from logilab.common.registry import objectify_predicate, yes |
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from cubicweb.predicates import (non_final_entity, multi_lines_rset, |
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match_context_prop, relation_possible) |
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from cubicweb.utils import json_dumps |
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[facets] do no stretch to the right when there are many facets; instead use a floating layout (closes #2093160)
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from cubicweb.uilib import css_em_num_value |
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from cubicweb.view import AnyRsetView |
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[facets] factorize table filter form / facets box generation, moving out filter form from the table view so it's usable from other views. Closes #1794009
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from cubicweb.web import component, facet as facetbase |
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[controllers] deprecate JSonController and implement AjaxController / ajax-func registry (closes #2110265)
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from cubicweb.web.views.ajaxcontroller import ajaxfunc |
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[facets] view should be propagated up to facet selection, so we can get different facets according to the view. Closes #2036527
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def facets(req, rset, context, mainvar=None, **kwargs): |
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"""return the base rql and a list of widgets for facets applying to the |
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given rset/context (cached version of :func:`_facet`) |
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:param req: A :class:`~cubicweb.req.RequestSessionBase` object |
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:param rset: A :class:`~cubicweb.rset.ResultSet` |
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:param context: A string that match the ``__regid__`` of a ``FacetFilter`` |
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:param mainvar: A string that match a select var from the rset |
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""" |
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try: |
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cache = req.__rset_facets |
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except AttributeError: |
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cache = req.__rset_facets = {} |
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try: |
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return cache[(rset, context, mainvar)] |
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except KeyError: |
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facets = _facets(req, rset, context, mainvar, **kwargs) |
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cache[(rset, context, mainvar)] = facets |
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return facets |
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|
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def _facets(req, rset, context, mainvar, **kwargs): |
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"""return the base rql and a list of widgets for facets applying to the |
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[facets] factorize table filter form / facets box generation, moving out filter form from the table view so it's usable from other views. Closes #1794009
Sylvain Thénault <sylvain.thenault@logilab.fr>
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given rset/context |
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:param req: A :class:`~cubicweb.req.RequestSessionBase` object |
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:param rset: A :class:`~cubicweb.rset.ResultSet` |
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:param context: A string that match the ``__regid__`` of a ``FacetFilter`` |
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:param mainvar: A string that match a select var from the rset |
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""" |
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### initialisation |
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# XXX done by selectors, though maybe necessary when rset has been hijacked |
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# (e.g. contextview_selector matched) |
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origqlst = rset.syntax_tree() |
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# union not yet supported |
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if len(origqlst.children) != 1: |
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req.debug('facette disabled on union request %s', origqlst) |
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return None, () |
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rqlst = origqlst.copy() |
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select = rqlst.children[0] |
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filtered_variable, baserql = facetbase.init_facets(rset, select, mainvar) |
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### Selection |
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possible_facets = req.vreg['facets'].poss_visible_objects( |
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req, rset=rset, rqlst=origqlst, select=select, |
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context=context, filtered_variable=filtered_variable, **kwargs) |
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wdgs = [(facet, facet.get_widget()) for facet in possible_facets] |
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return baserql, [wdg for facet, wdg in wdgs if wdg is not None] |
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@objectify_predicate |
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def contextview_selector(cls, req, rset=None, row=None, col=None, view=None, |
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**kwargs): |
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88 |
if view: |
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89 |
try: |
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90 |
getcontext = getattr(view, 'filter_box_context_info') |
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91 |
except AttributeError: |
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92 |
return 0 |
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93 |
rset = getcontext()[0] |
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94 |
if rset is None or rset.rowcount < 2: |
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95 |
return 0 |
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96 |
wdgs = facets(req, rset, cls.__regid__, view=view)[1] |
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97 |
return len(wdgs) |
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98 |
return 0 |
0 | 99 |
|
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100 |
@objectify_predicate |
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101 |
def has_facets(cls, req, rset=None, **kwargs): |
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102 |
if rset is None or rset.rowcount < 2: |
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103 |
return 0 |
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104 |
wdgs = facets(req, rset, cls.__regid__, **kwargs)[1] |
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105 |
return len(wdgs) |
0 | 106 |
|
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107 |
|
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108 |
def filter_hiddens(w, baserql, wdgs, **kwargs): |
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109 |
kwargs['facets'] = ','.join(wdg.facet.__regid__ for wdg in wdgs) |
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kwargs['baserql'] = baserql |
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111 |
for key, val in kwargs.items(): |
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112 |
w(u'<input type="hidden" name="%s" value="%s" />' % ( |
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113 |
key, xml_escape(val))) |
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114 |
|
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115 |
|
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116 |
class FacetFilterMixIn(object): |
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"""Mixin Class to generate Facet Filter Form |
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118 |
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119 |
To generate the form, you need to explicitly call the following method: |
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120 |
|
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121 |
.. automethod:: generate_form |
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122 |
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123 |
The most useful function to override is: |
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124 |
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125 |
.. automethod:: layout_widgets |
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126 |
""" |
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127 |
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128 |
needs_js = ['cubicweb.ajax.js', 'cubicweb.facets.js'] |
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129 |
needs_css = ['cubicweb.facets.css'] |
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130 |
roundcorners = True |
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131 |
|
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132 |
def generate_form(self, w, rset, divid, vid, vidargs=None, mainvar=None, |
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133 |
paginate=False, cssclass='', hiddens=None, **kwargs): |
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134 |
"""display a form to filter some view's content |
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135 |
|
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136 |
:param w: Write function |
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137 |
|
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138 |
:param rset: ResultSet to be filtered |
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139 |
|
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140 |
:param divid: Dom ID of the div where the rendering of the view is done. |
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141 |
:type divid: string |
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142 |
|
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143 |
:param vid: ID of the view display in the div |
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144 |
:type vid: string |
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145 |
|
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146 |
:param paginate: Is the view paginated ? |
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147 |
:type paginate: boolean |
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148 |
|
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149 |
:param cssclass: Additional css classes to put on the form. |
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150 |
:type cssclass: string |
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151 |
|
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152 |
:param hiddens: other hidden parametters to include in the forms. |
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153 |
:type hiddens: dict from extra keyword argument |
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154 |
""" |
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155 |
# XXX Facet.context property hijacks an otherwise well-behaved |
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156 |
# vocabulary with its own notions |
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157 |
# Hence we whack here to avoid a clash |
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158 |
kwargs.pop('context', None) |
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159 |
baserql, wdgs = facets(self._cw, rset, context=self.__regid__, |
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160 |
mainvar=mainvar, **kwargs) |
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161 |
assert wdgs |
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162 |
self._cw.add_js(self.needs_js) |
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163 |
self._cw.add_css(self.needs_css) |
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164 |
self._cw.html_headers.define_var('facetLoadingMsg', |
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165 |
self._cw._('facet-loading-msg')) |
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166 |
if self.roundcorners: |
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167 |
self._cw.html_headers.add_onload( |
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168 |
'jQuery(".facet").corner("tl br 10px");') |
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169 |
if vidargs is not None: |
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170 |
warn("[3.14] vidargs is deprecated. Maybe you're using some TableView?", |
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171 |
DeprecationWarning, stacklevel=2) |
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172 |
else: |
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173 |
vidargs = {} |
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174 |
vidargs = dict((k, v) for k, v in vidargs.iteritems() if v) |
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175 |
facetargs = xml_escape(json_dumps([divid, vid, paginate, vidargs])) |
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176 |
w(u'<form id="%sForm" class="%s" method="post" action="" ' |
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'cubicweb:facetargs="%s" >' % (divid, cssclass, facetargs)) |
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w(u'<fieldset>') |
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if hiddens is None: |
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hiddens = {} |
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181 |
if mainvar: |
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hiddens['mainvar'] = mainvar |
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183 |
filter_hiddens(w, baserql, wdgs, **hiddens) |
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184 |
self.layout_widgets(w, self.sorted_widgets(wdgs)) |
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185 |
|
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186 |
# <Enter> is supposed to submit the form only if there is a single |
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187 |
# input:text field. However most browsers will submit the form |
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188 |
# on <Enter> anyway if there is an input:submit field. |
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189 |
# |
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190 |
# see: http://www.w3.org/MarkUp/html-spec/html-spec_8.html#SEC8.2 |
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191 |
# |
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192 |
# Firefox 7.0.1 does not submit form on <Enter> if there is more than a |
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193 |
# input:text field and not input:submit but does it if there is an |
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194 |
# input:submit. |
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195 |
# |
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196 |
# IE 6 or Firefox 2 behave the same way. |
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197 |
w(u'<input type="submit" class="hidden" />') |
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198 |
# |
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199 |
w(u'</fieldset>\n') |
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w(u'</form>\n') |
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201 |
|
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202 |
def sorted_widgets(self, wdgs): |
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"""sort widgets: by default sort by widget height, then according to |
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204 |
widget.order (the original widgets order) |
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205 |
""" |
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206 |
return sorted(wdgs, key=lambda x: 99 * (not x.facet.start_unfolded) or x.height ) |
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207 |
|
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208 |
def layout_widgets(self, w, wdgs): |
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209 |
"""layout widgets: by default simply render each of them |
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210 |
(i.e. succession of <div>) |
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211 |
""" |
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212 |
for wdg in wdgs: |
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213 |
wdg.render(w=w) |
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214 |
|
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215 |
|
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216 |
class FilterBox(FacetFilterMixIn, component.CtxComponent): |
0 | 217 |
"""filter results of a query""" |
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218 |
__regid__ = 'facet.filterbox' |
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219 |
__select__ = ((non_final_entity() & has_facets()) |
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| contextview_selector()) # can't use has_facets because of |
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221 |
# contextview mecanism |
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222 |
context = 'left' # XXX doesn't support 'incontext', only 'left' or 'right' |
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223 |
title = _('facet.filters') |
0 | 224 |
visible = True # functionality provided by the search box by default |
225 |
order = 1 |
|
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226 |
|
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227 |
bk_linkbox_template = u'<div class="facetTitle">%s</div>' |
2283 | 228 |
|
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229 |
def render_body(self, w, **kwargs): |
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req = self._cw |
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231 |
rset, vid, divid, paginate = self._get_context() |
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232 |
assert len(rset) > 1 |
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233 |
if vid is None: |
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234 |
vid = req.form.get('vid') |
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235 |
if self.bk_linkbox_template and req.vreg.schema['Bookmark'].has_perm(req, 'add'): |
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236 |
w(self.bookmark_link(rset)) |
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237 |
hiddens = {} |
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238 |
for param in ('subvid', 'vtitle'): |
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if param in req.form: |
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240 |
hiddens[param] = req.form[param] |
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241 |
self.generate_form(w, rset, divid, vid, paginate=paginate, |
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242 |
hiddens=hiddens, **self.cw_extra_kwargs) |
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243 |
|
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244 |
def _get_context(self): |
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245 |
view = self.cw_extra_kwargs.get('view') |
0 | 246 |
context = getattr(view, 'filter_box_context_info', lambda: None)() |
247 |
if context: |
|
248 |
rset, vid, divid, paginate = context |
|
249 |
else: |
|
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rset = self.cw_rset |
0 | 251 |
vid, divid = None, 'pageContent' |
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252 |
paginate = view and view.paginable |
0 | 253 |
return rset, vid, divid, paginate |
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254 |
|
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255 |
def bookmark_link(self, rset): |
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256 |
req = self._cw |
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257 |
bk_path = u'rql=%s' % req.url_quote(rset.printable_rql()) |
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258 |
if req.form.get('vid'): |
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259 |
bk_path += u'&vid=%s' % req.url_quote(req.form['vid']) |
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260 |
bk_path = u'view?' + bk_path |
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261 |
bk_title = req._('my custom search') |
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262 |
linkto = u'bookmarked_by:%s:subject' % req.user.eid |
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263 |
bkcls = req.vreg['etypes'].etype_class('Bookmark') |
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264 |
bk_add_url = bkcls.cw_create_url(req, path=bk_path, title=bk_title, |
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265 |
__linkto=linkto) |
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266 |
bk_base_url = bkcls.cw_create_url(req, title=bk_title, __linkto=linkto) |
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267 |
bk_link = u'<a cubicweb:target="%s" id="facetBkLink" href="%s">%s</a>' % ( |
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268 |
xml_escape(bk_base_url), xml_escape(bk_add_url), |
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269 |
req._('bookmark this search')) |
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270 |
return self.bk_linkbox_template % bk_link |
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271 |
|
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272 |
|
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273 |
class FilterTable(FacetFilterMixIn, AnyRsetView): |
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274 |
__regid__ = 'facet.filtertable' |
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275 |
__select__ = has_facets() |
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276 |
average_perfacet_uncomputable_overhead = .3 |
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277 |
|
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278 |
def call(self, vid, divid, vidargs=None, cssclass=''): |
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279 |
hiddens = self.cw_extra_kwargs.setdefault('hiddens', {}) |
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280 |
hiddens['fromformfilter'] = '1' |
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281 |
self.generate_form(self.w, self.cw_rset, divid, vid, vidargs=vidargs, |
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282 |
cssclass=cssclass, **self.cw_extra_kwargs) |
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283 |
|
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284 |
@cachedproperty |
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285 |
def per_facet_height_overhead(self): |
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286 |
return (css_em_num_value(self._cw.vreg, 'facet_MarginBottom', .2) + |
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287 |
css_em_num_value(self._cw.vreg, 'facet_Padding', .2) + |
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288 |
self.average_perfacet_uncomputable_overhead) |
7842
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[views/facets] simple horizontal layout when there are a few facets only (closes #1921709)
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|
289 |
|
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290 |
def layout_widgets(self, w, wdgs): |
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291 |
"""layout widgets: put them in a table where each column should have |
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292 |
sum(wdg.height) < wdg_stack_size. |
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293 |
""" |
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294 |
w(u'<div class="filter">\n') |
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295 |
widget_queue = [] |
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296 |
queue_height = 0 |
8104
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[facets] forcing a fixed height to the group is a bad idea: the container will not properly overflow
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297 |
wdg_stack_size = facetbase._DEFAULT_FACET_GROUP_HEIGHT |
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298 |
for wdg in wdgs: |
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299 |
height = wdg.height + self.per_facet_height_overhead |
7849
7937cf60f2ce
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300 |
if queue_height + height <= wdg_stack_size: |
7600
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301 |
widget_queue.append(wdg) |
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302 |
queue_height += height |
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303 |
continue |
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304 |
w(u'<div class="facetGroup">') |
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305 |
for queued in widget_queue: |
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306 |
queued.render(w=w) |
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|
307 |
w(u'</div>') |
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|
308 |
widget_queue = [wdg] |
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309 |
queue_height = height |
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310 |
if widget_queue: |
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|
311 |
w(u'<div class="facetGroup">') |
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312 |
for queued in widget_queue: |
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313 |
queued.render(w=w) |
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314 |
w(u'</div>') |
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|
315 |
w(u'</div>\n') |
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|
316 |
|
8128
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317 |
# python-ajax remote functions used by facet widgets ######################### |
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318 |
|
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|
319 |
@ajaxfunc(output_type='json') |
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|
320 |
def filter_build_rql(self, names, values): |
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321 |
form = self._rebuild_posted_form(names, values) |
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322 |
self._cw.form = form |
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|
323 |
builder = facetbase.FilterRQLBuilder(self._cw) |
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|
324 |
return builder.build_rql() |
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325 |
|
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|
326 |
@ajaxfunc(output_type='json') |
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327 |
def filter_select_content(self, facetids, rql, mainvar): |
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328 |
# Union unsupported yet |
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329 |
select = self._cw.vreg.parse(self._cw, rql).children[0] |
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330 |
filtered_variable = facetbase.get_filtered_variable(select, mainvar) |
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331 |
facetbase.prepare_select(select, filtered_variable) |
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|
332 |
update_map = {} |
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333 |
for fid in facetids: |
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334 |
fobj = facetbase.get_facet(self._cw, fid, select, filtered_variable) |
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335 |
update_map[fid] = fobj.possible_values() |
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336 |
return update_map |
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337 |
|
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338 |
|
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delete-trailing-whitespace + some copyright update
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339 |
|
0 | 340 |
# facets ###################################################################### |
341 |
||
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342 |
class CWSourceFacet(facetbase.RelationFacet): |
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343 |
__regid__ = 'cw_source-facet' |
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344 |
rtype = 'cw_source' |
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345 |
target_attr = 'name' |
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346 |
|
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347 |
class CreatedByFacet(facetbase.RelationFacet): |
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|
348 |
__regid__ = 'created_by-facet' |
0 | 349 |
rtype = 'created_by' |
350 |
target_attr = 'login' |
|
351 |
||
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|
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class InGroupFacet(facetbase.RelationFacet): |
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353 |
__regid__ = 'in_group-facet' |
0 | 354 |
rtype = 'in_group' |
355 |
target_attr = 'name' |
|
356 |
||
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|
357 |
class InStateFacet(facetbase.RelationAttributeFacet): |
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358 |
__regid__ = 'in_state-facet' |
0 | 359 |
rtype = 'in_state' |
360 |
target_attr = 'name' |
|
361 |
||
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362 |
|
0 | 363 |
# inherit from RelationFacet to benefit from its possible_values implementation |
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parents:
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|
364 |
class ETypeFacet(facetbase.RelationFacet): |
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365 |
__regid__ = 'etype-facet' |
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366 |
__select__ = yes() |
0 | 367 |
order = 1 |
368 |
rtype = 'is' |
|
369 |
target_attr = 'name' |
|
370 |
||
371 |
@property |
|
372 |
def title(self): |
|
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373 |
return self._cw._('entity type') |
0 | 374 |
|
375 |
def vocabulary(self): |
|
376 |
"""return vocabulary for this facet, eg a list of 2-uple (label, value) |
|
377 |
""" |
|
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|
378 |
etypes = self.cw_rset.column_types(0) |
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|
379 |
return sorted((self._cw._(etype), etype) for etype in etypes) |
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|
380 |
|
0 | 381 |
def add_rql_restrictions(self): |
382 |
"""add restriction for this facet into the rql syntax tree""" |
|
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|
383 |
value = self._cw.form.get(self.__regid__) |
0 | 384 |
if not value: |
385 |
return |
|
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|
386 |
self.select.add_type_restriction(self.filtered_variable, value) |
0 | 387 |
|
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|
388 |
def possible_values(self): |
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389 |
"""return a list of possible values (as string since it's used to |
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|
390 |
compare to a form value in javascript) for this facet |
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|
391 |
""" |
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|
392 |
select = self.select |
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|
393 |
select.save_state() |
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changeset
|
394 |
try: |
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|
395 |
facetbase.cleanup_select(select, self.filtered_variable) |
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|
396 |
etype_var = facetbase.prepare_vocabulary_select( |
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|
397 |
select, self.filtered_variable, self.rtype, self.role) |
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|
398 |
attrvar = select.make_variable() |
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|
399 |
select.add_selected(attrvar) |
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|
400 |
select.add_relation(etype_var, 'name', attrvar) |
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|
401 |
return [etype for _, etype in self.rqlexec(select.as_string())] |
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|
402 |
finally: |
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|
403 |
select.recover() |
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|
404 |
|
0 | 405 |
|
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Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
7402
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|
406 |
class HasTextFacet(facetbase.AbstractFacet): |
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|
407 |
__select__ = relation_possible('has_text', 'subject') & match_context_prop() |
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|
408 |
__regid__ = 'has_text-facet' |
0 | 409 |
rtype = 'has_text' |
410 |
role = 'subject' |
|
411 |
order = 0 |
|
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|
412 |
|
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|
413 |
@property |
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|
414 |
def wdgclass(self): |
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|
415 |
return facetbase.FacetStringWidget |
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|
416 |
|
0 | 417 |
@property |
418 |
def title(self): |
|
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|
419 |
return self._cw._('has_text') |
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Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
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|
420 |
|
0 | 421 |
def get_widget(self): |
422 |
"""return the widget instance to use to display this facet |
|
423 |
||
424 |
default implentation expects a .vocabulary method on the facet and |
|
425 |
return a combobox displaying this vocabulary |
|
426 |
""" |
|
7402
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Aurelien Campeas <aurelien.campeas@logilab.fr>
parents:
7300
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changeset
|
427 |
return self.wdgclass(self) |
0 | 428 |
|
429 |
def add_rql_restrictions(self): |
|
430 |
"""add restriction for this facet into the rql syntax tree""" |
|
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Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
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changeset
|
431 |
value = self._cw.form.get(self.__regid__) |
0 | 432 |
if not value: |
433 |
return |
|
7605
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[facets] refactor / cleanup facet api: more consistent variable naming and easier to reuse function. Closes #1796804
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
7600
diff
changeset
|
434 |
self.select.add_constant_restriction(self.filtered_variable, 'has_text', value, 'String') |