"""abstract form classes for CubicWeb web client
:organization: Logilab
:copyright: 2001-2008 LOGILAB S.A. (Paris, FRANCE), all rights reserved.
:contact: http://www.logilab.fr/ -- mailto:contact@logilab.fr
"""
__docformat__ = "restructuredtext en"
from simplejson import dumps
from logilab.mtconverter import html_escape
from cubicweb import typed_eid
from cubicweb.common.selectors import match_form_params
from cubicweb.common.registerers import accepts_registerer
from cubicweb.common.view import NOINDEX, NOFOLLOW, View, EntityView, AnyRsetView
from cubicweb.web import stdmsgs
from cubicweb.web.httpcache import NoHTTPCacheManager
from cubicweb.web.controller import redirect_params
def relation_id(eid, rtype, target, reid):
if target == 'subject':
return u'%s:%s:%s' % (eid, rtype, reid)
return u'%s:%s:%s' % (reid, rtype, eid)
class FormMixIn(object):
"""abstract form mix-in"""
category = 'form'
controller = 'edit'
domid = 'entityForm'
http_cache_manager = NoHTTPCacheManager
add_to_breadcrumbs = False
skip_relations = set()
def __init__(self, req, rset):
super(FormMixIn, self).__init__(req, rset)
self.maxrelitems = self.req.property_value('navigation.related-limit')
self.maxcomboitems = self.req.property_value('navigation.combobox-limit')
self.force_display = not not req.form.get('__force_display')
# get validation session data which may have been previously set.
# deleting validation errors here breaks form reloading (errors are
# no more available), they have to be deleted by application's publish
# method on successful commit
formurl = req.url()
forminfo = req.get_session_data(formurl)
if forminfo:
req.data['formvalues'] = forminfo['values']
req.data['formerrors'] = errex = forminfo['errors']
req.data['displayederrors'] = set()
# if some validation error occured on entity creation, we have to
# get the original variable name from its attributed eid
foreid = errex.entity
for var, eid in forminfo['eidmap'].items():
if foreid == eid:
errex.eid = var
break
else:
errex.eid = foreid
def html_headers(self):
"""return a list of html headers (eg something to be inserted between
<head> and </head> of the returned page
by default forms are neither indexed nor followed
"""
return [NOINDEX, NOFOLLOW]
def linkable(self):
"""override since forms are usually linked by an action,
so we don't want them to be listed by appli.possible_views
"""
return False
@property
def limit(self):
if self.force_display:
return None
return self.maxrelitems + 1
def need_multipart(self, entity, categories=('primary', 'secondary')):
"""return a boolean indicating if form's enctype should be multipart
"""
for rschema, _, x in entity.relations_by_category(categories):
if entity.get_widget(rschema, x).need_multipart:
return True
# let's find if any of our inlined entities needs multipart
for rschema, targettypes, x in entity.relations_by_category('inlineview'):
assert len(targettypes) == 1, \
"I'm not able to deal with several targets and inlineview"
ttype = targettypes[0]
inlined_entity = self.vreg.etype_class(ttype)(self.req, None, None)
for irschema, _, x in inlined_entity.relations_by_category(categories):
if inlined_entity.get_widget(irschema, x).need_multipart:
return True
return False
def error_message(self):
"""return formatted error message
This method should be called once inlined field errors has been consumed
"""
errex = self.req.data.get('formerrors')
# get extra errors
if errex is not None:
errormsg = self.req._('please correct the following errors:')
displayed = self.req.data['displayederrors']
errors = sorted((field, err) for field, err in errex.errors.items()
if not field in displayed)
if errors:
if len(errors) > 1:
templstr = '<li>%s</li>\n'
else:
templstr = ' %s\n'
for field, err in errors:
if field is None:
errormsg += templstr % err
else:
errormsg += templstr % '%s: %s' % (self.req._(field), err)
if len(errors) > 1:
errormsg = '<ul>%s</ul>' % errormsg
return u'<div class="errorMessage">%s</div>' % errormsg
return u''
def restore_pending_inserts(self, entity, cell=False):
"""used to restore edition page as it was before clicking on
'search for <some entity type>'
"""
eid = entity.eid
cell = cell and "div_insert_" or "tr"
pending_inserts = set(self.req.get_pending_inserts(eid))
for pendingid in pending_inserts:
eidfrom, rtype, eidto = pendingid.split(':')
if typed_eid(eidfrom) == entity.eid: # subject
label = display_name(self.req, rtype, 'subject')
reid = eidto
else:
label = display_name(self.req, rtype, 'object')
reid = eidfrom
jscall = "javascript: cancelPendingInsert('%s', '%s', null, %s);" \
% (pendingid, cell, eid)
rset = self.req.eid_rset(reid)
eview = self.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(self.req, 'Basket'))
yield rtype, pendingid, jscall, label, reid, eview
def force_display_link(self):
return (u'<span class="invisible">'
u'[<a href="javascript: window.location.href+=\'&__force_display=1\'">%s</a>]'
u'</span>' % self.req._('view all'))
def relations_table(self, entity):
"""yiels 3-tuples (rtype, target, 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
"""
eid = entity.eid
pending_deletes = self.req.get_pending_deletes(eid)
# XXX (adim) : quick fix to get Folder relations
for label, rschema, target in entity.srelations_by_category(('generic', 'metadata'), 'add'):
if rschema in self.skip_relations:
continue
relatedrset = entity.related(rschema, target, limit=self.limit)
toggable_rel_link = self.toggable_relation_link_func(rschema)
related = []
for row in xrange(relatedrset.rowcount):
nodeid = relation_id(eid, rschema, target, relatedrset[row][0])
if nodeid in pending_deletes:
status = u'pendingDelete'
label = '+'
else:
status = u''
label = 'x'
dellink = toggable_rel_link(eid, nodeid, label)
eview = self.view('oneline', relatedrset, row=row)
related.append((nodeid, dellink, status, eview))
yield (rschema, target, related)
def toggable_relation_link_func(self, rschema):
if not rschema.has_perm(self.req, 'delete'):
return lambda x, y, z: u''
return toggable_relation_link
def redirect_url(self, entity=None):
"""return a url to use as next direction if there are some information
specified in current form params, else return the result the reset_url
method which should be defined in concrete classes
"""
rparams = redirect_params(self.req.form)
if rparams:
return self.build_url('view', **rparams)
return self.reset_url(entity)
def reset_url(self, entity):
raise NotImplementedError('implement me in concrete classes')
BUTTON_STR = u'<input class="validateButton" type="submit" name="%s" value="%s" tabindex="%s"/>'
ACTION_SUBMIT_STR = u'<input class="validateButton" type="button" onclick="postForm(\'%s\', \'%s\', \'%s\')" value="%s" tabindex="%s"/>'
def button_ok(self, label=None, tabindex=None):
label = self.req._(label or stdmsgs.BUTTON_OK).capitalize()
return self.BUTTON_STR % ('defaultsubmit', label, tabindex or 2)
def button_apply(self, label=None, tabindex=None):
label = self.req._(label or stdmsgs.BUTTON_APPLY).capitalize()
return self.ACTION_SUBMIT_STR % ('__action_apply', label, self.domid, label, tabindex or 3)
def button_delete(self, label=None, tabindex=None):
label = self.req._(label or stdmsgs.BUTTON_DELETE).capitalize()
return self.ACTION_SUBMIT_STR % ('__action_delete', label, self.domid, label, tabindex or 3)
def button_cancel(self, label=None, tabindex=None):
label = self.req._(label or stdmsgs.BUTTON_CANCEL).capitalize()
return self.ACTION_SUBMIT_STR % ('__action_cancel', label, self.domid, label, tabindex or 4)
def button_reset(self, label=None, tabindex=None):
label = self.req._(label or stdmsgs.BUTTON_CANCEL).capitalize()
return u'<input class="validateButton" type="reset" value="%s" tabindex="%s"/>' % (
label, tabindex or 4)
def toggable_relation_link(eid, nodeid, label='x'):
js = u"javascript: togglePendingDelete('%s', %s);" % (nodeid, html_escape(dumps(eid)))
return u'[<a class="handle" href="%s" id="handle%s">%s</a>]' % (js, nodeid, label)
class Form(FormMixIn, View):
"""base class for forms. Apply by default according to request form
parameters specified using the `form_params` class attribute which
should list necessary parameters in the form to be accepted.
"""
__registerer__ = accepts_registerer
__select__ = classmethod(match_form_params)
form_params = ()
class EntityForm(FormMixIn, EntityView):
"""base class for forms applying on an entity (i.e. uniform result set)
"""
class AnyRsetForm(FormMixIn, AnyRsetView):
"""base class for forms applying on any empty result sets
"""