"""Some views used to help to the edition process
:organization: Logilab
:copyright: 2001-2010 LOGILAB S.A. (Paris, FRANCE), license is LGPL v2.
:contact: http://www.logilab.fr/ -- mailto:contact@logilab.fr
:license: GNU Lesser General Public License, v2.1 - http://www.gnu.org/licenses
"""
__docformat__ = "restructuredtext en"
_ = unicode
from simplejson import dumps
from logilab.common.decorators import cached
from logilab.mtconverter import xml_escape
from cubicweb import typed_eid, uilib
from cubicweb.schema import display_name
from cubicweb.view import EntityView
from cubicweb.selectors import (one_line_rset, non_final_entity,
match_search_state, match_form_params)
from cubicweb.web import formwidgets as fw, formfields as ff
from cubicweb.web.views import baseviews, linksearch_select_url
def relation_id(eid, rtype, role, reid):
"""return an identifier for a relation between two entities"""
if role == 'subject':
return u'%s:%s:%s' % (eid, rtype, reid)
return u'%s:%s:%s' % (reid, rtype, eid)
def toggleable_relation_link(eid, nodeid, label='x'):
"""return javascript snippet to delete/undelete a relation between two
entities
"""
js = u"javascript: togglePendingDelete('%s', %s);" % (
nodeid, xml_escape(dumps(eid)))
return u'[<a class="handle" href="%s" id="handle%s">%s</a>]' % (
js, nodeid, label)
class SearchForAssociationView(EntityView):
"""view called by the edition view when the user asks to search for
something to link to the edited eid
"""
__regid__ = 'search-associate'
__select__ = (one_line_rset() & match_search_state('linksearch')
& non_final_entity())
title = _('search for association')
def cell_call(self, row, col):
rset, vid, divid, paginate = self.filter_box_context_info()
self.cw_rset = rset
self.w(u'<div id="%s">' % divid)
self.paginate()
self.wview(vid, rset, 'noresult')
self.w(u'</div>')
@cached
def filter_box_context_info(self):
entity = self.cw_rset.get_entity(0, 0)
role, eid, rtype, etype = self._cw.search_state[1]
assert entity.eid == typed_eid(eid)
# the default behaviour is to fetch all unrelated entities and display
# them. Use fetch_order and not fetch_unrelated_order as sort method
# since the latter is mainly there to select relevant items in the combo
# box, it doesn't give interesting result in this context
rql, args = entity.unrelated_rql(rtype, etype, role,
ordermethod='fetch_order',
vocabconstraints=False)
rset = self._cw.execute(rql, args, tuple(args))
return rset, 'list', "search-associate-content", True
class OutOfContextSearch(EntityView):
__regid__ = 'outofcontext-search'
def cell_call(self, row, col):
entity = self.cw_rset.get_entity(row, col)
erset = entity.as_rset()
if self._cw.match_search_state(erset):
self.w(u'<a href="%s" title="%s">%s</a> <a href="%s" title="%s">[...]</a>' % (
xml_escape(linksearch_select_url(self._cw, erset)),
self._cw._('select this entity'),
xml_escape(entity.view('textoutofcontext')),
xml_escape(entity.absolute_url(vid='primary')),
self._cw._('view detail for this entity')))
else:
entity.view('outofcontext', w=self.w)
def get_pending_inserts(req, eid=None):
"""shortcut to access req's pending_insert entry
This is where are stored relations being added while editing
an entity. This used to be stored in a temporary cookie.
"""
pending = req.get_session_data('pending_insert') or ()
return ['%s:%s:%s' % (subj, rel, obj) for subj, rel, obj in pending
if eid is None or eid in (subj, obj)]
def get_pending_deletes(req, eid=None):
"""shortcut to access req's pending_delete entry
This is where are stored relations being removed while editing
an entity. This used to be stored in a temporary cookie.
"""
pending = req.get_session_data('pending_delete') or ()
return ['%s:%s:%s' % (subj, rel, obj) for subj, rel, obj in pending
if eid is None or eid in (subj, obj)]
def parse_relations_descr(rdescr):
"""parse a string describing some relations, in the form
subjeids:rtype:objeids
where subjeids and objeids are eids separeted by a underscore
return an iterator on (subject eid, relation type, object eid) found
"""
for rstr in rdescr:
subjs, rtype, objs = rstr.split(':')
for subj in subjs.split('_'):
for obj in objs.split('_'):
yield typed_eid(subj), rtype, typed_eid(obj)
def delete_relations(req, rdefs):
"""delete relations from the repository"""
# FIXME convert to using the syntax subject:relation:eids
execute = req.execute
for subj, rtype, obj in parse_relations_descr(rdefs):
rql = 'DELETE X %s Y where X eid %%(x)s, Y eid %%(y)s' % rtype
execute(rql, {'x': subj, 'y': obj}, ('x', 'y'))
req.set_message(req._('relations deleted'))
def insert_relations(req, rdefs):
"""insert relations into the repository"""
execute = req.execute
for subj, rtype, obj in parse_relations_descr(rdefs):
rql = 'SET X %s Y where X eid %%(x)s, Y eid %%(y)s' % rtype
execute(rql, {'x': subj, 'y': obj}, ('x', 'y'))
class GenericRelationsWidget(fw.FieldWidget):
def render(self, form, field, renderer):
stream = []
w = stream.append
req = form._cw
_ = req._
__ = _
label = u'%s :' % __('This %s' % form.edited_entity.e_schema).capitalize()
eid = form.edited_entity.eid
w(u'<fieldset class="subentity">')
w(u'<legend class="iformTitle">%s</legend>' % label)
w(u'<table id="relatedEntities">')
for rschema, role, related in field.relations_table(form):
# already linked entities
if related:
w(u'<tr><th class="labelCol">%s</th>' % rschema.display_name(req, role))
w(u'<td>')
w(u'<ul>')
for viewparams in related:
w(u'<li class="invisible">%s<div id="span%s" class="%s">%s</div></li>'
% (viewparams[1], viewparams[0], viewparams[2], viewparams[3]))
if not form.force_display and form.maxrelitems < len(related):
link = (u'<span class="invisible">'
'[<a href="javascript: window.location.href+=\'&__force_display=1\'">%s</a>]'
'</span>' % _('view all'))
w(u'<li class="invisible">%s</li>' % link)
w(u'</ul>')
w(u'</td>')
w(u'</tr>')
pendings = list(field.restore_pending_inserts(form))
if not pendings:
w(u'<tr><th> </th><td> </td></tr>')
else:
for row in pendings:
# soon to be linked to entities
w(u'<tr id="tr%s">' % row[1])
w(u'<th>%s</th>' % row[3])
w(u'<td>')
w(u'<a class="handle" title="%s" href="%s">[x]</a>' %
(_('cancel this insert'), row[2]))
w(u'<a id="a%s" class="editionPending" href="%s">%s</a>'
% (row[1], row[4], xml_escape(row[5])))
w(u'</td>')
w(u'</tr>')
w(u'<tr id="relationSelectorRow_%s" class="separator">' % eid)
w(u'<th class="labelCol">')
w(u'<select id="relationSelector_%s" tabindex="%s" '
'onchange="javascript:showMatchingSelect(this.options[this.selectedIndex].value,%s);">'
% (eid, req.next_tabindex(), xml_escape(dumps(eid))))
w(u'<option value="">%s</option>' % _('select a relation'))
for i18nrtype, rschema, role in field.relations:
# more entities to link to
w(u'<option value="%s_%s">%s</option>' % (rschema, role, i18nrtype))
w(u'</select>')
w(u'</th>')
w(u'<td id="unrelatedDivs_%s"></td>' % eid)
w(u'</tr>')
w(u'</table>')
w(u'</fieldset>')
return '\n'.join(stream)
class GenericRelationsField(ff.Field):
widget = GenericRelationsWidget
def __init__(self, relations, name='_cw_generic_field', **kwargs):
assert relations
kwargs['eidparam'] = True
super(GenericRelationsField, self).__init__(name, **kwargs)
self.relations = relations
self.label = None
def process_posted(self, form):
todelete = get_pending_deletes(form._cw)
if todelete:
delete_relations(form._cw, todelete)
toinsert = get_pending_inserts(form._cw)
if toinsert:
insert_relations(form._cw, toinsert)
return ()
def relations_table(self, form):
"""yiels 3-tuples (rtype, role, related_list)
where <related_list> itself a list of :
- node_id (will be the entity element's DOM id)
- appropriate javascript's togglePendingDelete() function call
- status 'pendingdelete' or ''
- oneline view of related entity
"""
entity = form.edited_entity
pending_deletes = get_pending_deletes(form._cw, entity.eid)
for label, rschema, role in self.relations:
related = []
if entity.has_eid():
rset = entity.related(rschema, role, limit=form.related_limit)
if rschema.has_perm(form._cw, 'delete'):
toggleable_rel_link_func = toggleable_relation_link
else:
toggleable_rel_link_func = lambda x, y, z: u''
for row in xrange(rset.rowcount):
nodeid = relation_id(entity.eid, rschema, role,
rset[row][0])
if nodeid in pending_deletes:
status, label = u'pendingDelete', '+'
else:
status, label = u'', 'x'
dellink = toggleable_rel_link_func(entity.eid, nodeid, label)
eview = form._cw.view('oneline', rset, row=row)
related.append((nodeid, dellink, status, eview))
yield (rschema, role, related)
def restore_pending_inserts(self, form):
"""used to restore edition page as it was before clicking on
'search for <some entity type>'
"""
entity = form.edited_entity
pending_inserts = set(get_pending_inserts(form._cw, form.edited_entity.eid))
for pendingid in pending_inserts:
eidfrom, rtype, eidto = pendingid.split(':')
if typed_eid(eidfrom) == entity.eid: # subject
label = display_name(form._cw, rtype, 'subject',
entity.__regid__)
reid = eidto
else:
label = display_name(form._cw, rtype, 'object',
entity.__regid__)
reid = eidfrom
jscall = "javascript: cancelPendingInsert('%s', 'tr', null, %s);" \
% (pendingid, entity.eid)
rset = form._cw.eid_rset(reid)
eview = form._cw.view('text', rset, row=0)
# XXX find a clean way to handle baskets
if rset.description[0][0] == 'Basket':
eview = '%s (%s)' % (eview, display_name(form._cw, 'Basket'))
yield rtype, pendingid, jscall, label, reid, eview
class UnrelatedDivs(EntityView):
__regid__ = 'unrelateddivs'
__select__ = match_form_params('relation')
def cell_call(self, row, col):
entity = self.cw_rset.get_entity(row, col)
relname, role = self._cw.form.get('relation').rsplit('_', 1)
rschema = self._cw.vreg.schema.rschema(relname)
hidden = 'hidden' in self._cw.form
is_cell = 'is_cell' in self._cw.form
self.w(self.build_unrelated_select_div(entity, rschema, role,
is_cell=is_cell, hidden=hidden))
def build_unrelated_select_div(self, entity, rschema, role,
is_cell=False, hidden=True):
options = []
divid = 'div%s_%s_%s' % (rschema.type, role, entity.eid)
selectid = 'select%s_%s_%s' % (rschema.type, role, entity.eid)
if rschema.symetric or role == 'subject':
targettypes = rschema.objects(entity.e_schema)
etypes = '/'.join(sorted(etype.display_name(self._cw) for etype in targettypes))
else:
targettypes = rschema.subjects(entity.e_schema)
etypes = '/'.join(sorted(etype.display_name(self._cw) for etype in targettypes))
etypes = uilib.cut(etypes, self._cw.property_value('navigation.short-line-size'))
options.append('<option>%s %s</option>' % (self._cw._('select a'), etypes))
options += self._get_select_options(entity, rschema, role)
options += self._get_search_options(entity, rschema, role, targettypes)
if 'Basket' in self._cw.vreg.schema: # XXX
options += self._get_basket_options(entity, rschema, role, targettypes)
relname, role = self._cw.form.get('relation').rsplit('_', 1)
return u"""\
<div class="%s" id="%s">
<select id="%s" onchange="javascript: addPendingInsert(this.options[this.selectedIndex], %s, %s, '%s');">
%s
</select>
</div>
""" % (hidden and 'hidden' or '', divid, selectid,
xml_escape(dumps(entity.eid)), is_cell and 'true' or 'null', relname,
'\n'.join(options))
def _get_select_options(self, entity, rschema, role):
"""add options to search among all entities of each possible type"""
options = []
pending_inserts = get_pending_inserts(self._cw, entity.eid)
rtype = rschema.type
form = self._cw.vreg['forms'].select('edition', self._cw, entity=entity)
field = form.field_by_name(rschema, role, entity.e_schema)
limit = self._cw.property_value('navigation.combobox-limit')
for eview, reid in field.choices(form, limit): # XXX expect 'limit' arg on choices
if reid is None:
if eview: # skip blank value
options.append('<option class="separator">-- %s --</option>'
% xml_escape(eview))
else:
optionid = relation_id(entity.eid, rtype, role, reid)
if optionid not in pending_inserts:
# prefix option's id with letters to make valid XHTML wise
options.append('<option id="id%s" value="%s">%s</option>' %
(optionid, reid, xml_escape(eview)))
return options
def _get_search_options(self, entity, rschema, role, targettypes):
"""add options to search among all entities of each possible type"""
options = []
_ = self._cw._
for eschema in targettypes:
mode = '%s:%s:%s:%s' % (role, entity.eid, rschema.type, eschema)
url = self._cw.build_url(entity.rest_path(), vid='search-associate',
__mode=mode)
options.append((eschema.display_name(self._cw),
'<option value="%s">%s %s</option>' % (
xml_escape(url), _('Search for'), eschema.display_name(self._cw))))
return [o for l, o in sorted(options)]
def _get_basket_options(self, entity, rschema, role, targettypes):
options = []
rtype = rschema.type
_ = self._cw._
for basketeid, basketname in self._get_basket_links(self._cw.user.eid,
role, targettypes):
optionid = relation_id(entity.eid, rtype, role, basketeid)
options.append('<option id="%s" value="%s">%s %s</option>' % (
optionid, basketeid, _('link to each item in'), xml_escape(basketname)))
return options
def _get_basket_links(self, ueid, role, targettypes):
targettypes = set(targettypes)
for basketeid, basketname, elements in self._get_basket_info(ueid):
baskettypes = elements.column_types(0)
# if every elements in the basket can be attached to the
# edited entity
if baskettypes & targettypes:
yield basketeid, basketname
def _get_basket_info(self, ueid):
basketref = []
basketrql = 'Any B,N WHERE B is Basket, B owned_by U, U eid %(x)s, B name N'
basketresultset = self._cw.execute(basketrql, {'x': ueid}, 'x')
for result in basketresultset:
basketitemsrql = 'Any X WHERE X in_basket B, B eid %(x)s'
rset = self._cw.execute(basketitemsrql, {'x': result[0]}, 'x')
basketref.append((result[0], result[1], rset))
return basketref
class ComboboxView(EntityView):
"""the view used in combobox (unrelated entities)
THIS IS A TEXT VIEW. DO NOT HTML_ESCAPE
"""
__regid__ = 'combobox'
title = None
def cell_call(self, row, col):
"""the combo-box view for an entity: same as text out of context view
by default
"""
self.wview('textoutofcontext', self.cw_rset, row=row, col=col)
class EditableFinalView(baseviews.FinalView):
"""same as FinalView but enables inplace-edition when possible"""
__regid__ = 'editable-final'
def cell_call(self, row, col, props=None):
entity, rtype = self.cw_rset.related_entity(row, col)
if entity is not None:
self.w(entity.view('reledit', rtype=rtype))
else:
super(EditableFinalView, self).cell_call(row, col, props)