author | Alexandre Fayolle <alexandre.fayolle@logilab.fr> |
Wed, 07 Apr 2010 11:56:30 +0200 | |
branch | stable |
changeset 5171 | 1c2567af37dd |
parent 4851 | e55bdd10421e |
child 5377 | 84d14ddfae13 |
permissions | -rw-r--r-- |
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"""Set of tree-building widgets, based on jQuery treeview plugin |
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|
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:organization: Logilab |
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:copyright: 2001-2010 LOGILAB S.A. (Paris, FRANCE), license is LGPL v2. |
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:contact: http://www.logilab.fr/ -- mailto:contact@logilab.fr |
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:license: GNU Lesser General Public License, v2.1 - http://www.gnu.org/licenses |
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""" |
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__docformat__ = "restructuredtext en" |
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|
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import simplejson as json |
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use xml_escape
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from logilab.mtconverter import xml_escape |
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from cubicweb.utils import make_uid |
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from cubicweb.interfaces import ITree |
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from cubicweb.selectors import implements |
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from cubicweb.view import EntityView |
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def treecookiename(treeid): |
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return str('%s-treestate' % treeid) |
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class TreeView(EntityView): |
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__regid__ = 'treeview' |
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itemvid = 'treeitemview' |
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subvid = 'oneline' |
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css_classes = 'treeview widget' |
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title = _('tree view') |
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def _init_params(self, subvid, treeid, initial_load, initial_thru_ajax, morekwargs): |
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form = self._cw.form |
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if subvid is None: |
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subvid = form.pop('treesubvid', self.subvid) # consume it |
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if treeid is None: |
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treeid = form.pop('treeid', None) |
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if treeid is None: |
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treeid = 'throw_away' + make_uid('uid') |
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if 'morekwargs' in self._cw.form: |
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ajaxargs = json.loads(form.pop('morekwargs')) |
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# got unicode & python keywords must be strings |
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morekwargs.update(dict((str(k), v) |
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for k, v in ajaxargs.iteritems())) |
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toplevel_thru_ajax = form.pop('treeview_top', False) or initial_thru_ajax |
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toplevel = toplevel_thru_ajax or (initial_load and not form.get('fname')) |
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return subvid, treeid, toplevel_thru_ajax, toplevel |
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def _init_headers(self, treeid, toplevel_thru_ajax): |
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self._cw.add_css('jquery.treeview.css') |
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self._cw.add_js(('cubicweb.ajax.js', 'cubicweb.widgets.js', 'jquery.treeview.js')) |
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self._cw.html_headers.add_onload(u""" |
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jQuery("#tree-%s").treeview({toggle: toggleTree, prerendered: true});""" % treeid) |
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|
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def call(self, subvid=None, treeid=None, |
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initial_load=True, initial_thru_ajax=False, **morekwargs): |
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subvid, treeid, toplevel_thru_ajax, toplevel = self._init_params( |
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subvid, treeid, initial_load, initial_thru_ajax, morekwargs) |
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ulid = ' ' |
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if toplevel: |
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self._init_headers(treeid, toplevel_thru_ajax) |
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ulid = ' id="tree-%s"' % treeid |
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self.w(u'<ul%s class="%s">' % (ulid, self.css_classes)) |
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# XXX force sorting on x.sortvalue() (which return dc_title by default) |
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# we need proper ITree & co specification to avoid this. |
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# (pb when type ambiguity at the other side of the tree relation, |
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# unability to provide generic implementation on eg Folder...) |
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for i, entity in enumerate(sorted(self.cw_rset.entities(), |
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key=lambda x: x.sortvalue())): |
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if i+1 < len(self.cw_rset): |
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morekwargs['is_last'] = False |
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else: |
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morekwargs['is_last'] = True |
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entity.view(self.itemvid, vid=subvid, parentvid=self.__regid__, |
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treeid=treeid, w=self.w, **morekwargs) |
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self.w(u'</ul>') |
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def cell_call(self, *args, **allargs): |
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""" does not makes much sense until you have to invoke |
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somentity.view('treeview') """ |
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allargs.pop('row') |
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allargs.pop('col') |
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self.call(*args, **allargs) |
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class FileTreeView(TreeView): |
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"""specific version of the treeview to display file trees |
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""" |
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__regid__ = 'filetree' |
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css_classes = 'treeview widget filetree' |
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title = _('file tree view') |
|
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|
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def call(self, subvid=None, treeid=None, initial_load=True, **kwargs): |
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super(FileTreeView, self).call(treeid=treeid, subvid='filetree-oneline', |
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initial_load=initial_load, **kwargs) |
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class FileItemInnerView(EntityView): |
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"""inner view used by the TreeItemView instead of oneline view |
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This view adds an enclosing <span> with some specific CSS classes |
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around the oneline view. This is needed by the jquery treeview plugin. |
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""" |
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__regid__ = 'filetree-oneline' |
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def cell_call(self, row, col): |
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entity = self.cw_rset.get_entity(row, col) |
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if ITree.is_implemented_by(entity.__class__) and not entity.is_leaf(): |
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self.w(u'<div class="folder">%s</div>\n' % entity.view('oneline')) |
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105 |
else: |
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106 |
# XXX define specific CSS classes according to mime types |
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107 |
self.w(u'<div class="file">%s</div>\n' % entity.view('oneline')) |
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|
109 |
||
110 |
class DefaultTreeViewItemView(EntityView): |
|
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"""default treeitem view for entities which don't implement ITree""" |
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112 |
__regid__ = 'treeitemview' |
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113 |
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114 |
def cell_call(self, row, col, vid='oneline', treeid=None, **morekwargs): |
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assert treeid is not None |
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itemview = self._cw.view(vid, self.cw_rset, row=row, col=col) |
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last_class = morekwargs['is_last'] and ' class="last"' or '' |
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118 |
self.w(u'<li%s>%s</li>' % (last_class, itemview)) |
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120 |
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class TreeViewItemView(EntityView): |
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"""specific treeitem view for entities which implement ITree |
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123 |
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(each item should be expandable if it's not a tree leaf) |
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""" |
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126 |
__regid__ = 'treeitemview' |
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__select__ = implements(ITree) |
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128 |
default_branch_state_is_open = False |
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129 |
|
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def open_state(self, eeid, treeid): |
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131 |
cookies = self._cw.get_cookie() |
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132 |
treestate = cookies.get(treecookiename(treeid)) |
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133 |
if treestate: |
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134 |
return str(eeid) in treestate.value.split(';') |
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135 |
return self.default_branch_state_is_open |
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136 |
|
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137 |
def cell_call(self, row, col, treeid, vid='oneline', parentvid='treeview', |
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138 |
is_last=False, **morekwargs): |
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139 |
w = self.w |
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140 |
entity = self.cw_rset.get_entity(row, col) |
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141 |
liclasses = [] |
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142 |
is_open = self.open_state(entity.eid, treeid) |
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143 |
is_leaf = not hasattr(entity, 'is_leaf') or entity.is_leaf() |
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|
144 |
if is_leaf: |
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145 |
if is_last: |
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146 |
liclasses.append('last') |
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147 |
w(u'<li class="%s">' % u' '.join(liclasses)) |
0 | 148 |
else: |
149 |
rql = entity.children_rql() % {'x': entity.eid} |
|
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150 |
url = xml_escape(self._cw.build_url('json', rql=rql, vid=parentvid, |
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151 |
pageid=self._cw.pageid, |
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152 |
treeid=treeid, |
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153 |
fname='view', |
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154 |
treesubvid=vid, |
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155 |
morekwargs=json.dumps(morekwargs))) |
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156 |
divclasses = ['hitarea'] |
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157 |
if is_open: |
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158 |
liclasses.append('collapsable') |
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159 |
divclasses.append('collapsable-hitarea') |
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160 |
else: |
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161 |
liclasses.append('expandable') |
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|
162 |
divclasses.append('expandable-hitarea') |
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|
163 |
if is_last: |
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164 |
if is_open: |
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165 |
liclasses.append('lastCollapsable') |
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166 |
divclasses.append('lastCollapsable-hitarea') |
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167 |
else: |
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168 |
liclasses.append('lastExpandable') |
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|
169 |
divclasses.append('lastExpandable-hitarea') |
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|
170 |
if is_open: |
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|
171 |
w(u'<li class="%s">' % u' '.join(liclasses)) |
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172 |
else: |
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173 |
w(u'<li cubicweb:loadurl="%s" class="%s">' % (url, u' '.join(liclasses))) |
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|
174 |
if treeid.startswith('throw_away'): |
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175 |
divtail = '' |
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|
176 |
else: |
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|
177 |
divtail = """ onclick="asyncRemoteExec('node_clicked', '%s', '%s')" """ % ( |
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|
178 |
treeid, entity.eid) |
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179 |
w(u'<div class="%s"%s></div>' % (u' '.join(divclasses), divtail)) |
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180 |
|
0 | 181 |
# add empty <ul> because jquery's treeview plugin checks for |
182 |
# sublists presence |
|
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183 |
if not is_open: |
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184 |
w(u'<ul class="placeholder"><li>place holder</li></ul>') |
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185 |
# the local node info |
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186 |
self.wview(vid, self.cw_rset, row=row, col=col, **morekwargs) |
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|
187 |
if is_open and not is_leaf: # => rql is defined |
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|
188 |
self.wview(parentvid, entity.children(entities=False), subvid=vid, |
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189 |
treeid=treeid, initial_load=False, **morekwargs) |
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190 |
w(u'</li>') |
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|
191 |