"""Set of HTML automatic forms to create, delete, copy or edit a single entity
or a list of entities of the same type
:organization: Logilab
:copyright: 2001-2009 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 copy import copy
from simplejson import dumps
from logilab.mtconverter import xml_escape
from cubicweb.selectors import (match_kwargs, one_line_rset, non_final_entity,
specified_etype_implements, yes)
from cubicweb.utils import make_uid, compute_cardinality, get_schema_property
from cubicweb.view import EntityView
from cubicweb.common import tags
from cubicweb.web import INTERNAL_FIELD_VALUE, stdmsgs, eid_param, uicfg
from cubicweb.web.form import FormViewMixIn
from cubicweb.web.formfields import guess_field
from cubicweb.web.formwidgets import Button, SubmitButton, ResetButton
from cubicweb.web.views import forms
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 DeleteConfForm(FormViewMixIn, EntityView):
"""form used to confirm deletion of some entities"""
id = 'deleteconf'
title = _('delete')
# don't use navigation, all entities asked to be deleted should be displayed
# else we will only delete the displayed page
need_navigation = False
def call(self, onsubmit=None):
"""ask for confirmation before real deletion"""
req, w = self.req, self.w
_ = req._
w(u'<script type="text/javascript">updateMessage(\'%s\');</script>\n'
% _('this action is not reversible!'))
# XXX above message should have style of a warning
w(u'<h4>%s</h4>\n' % _('Do you want to delete the following element(s) ?'))
form = self.vreg.select('forms', 'composite', req, domid='deleteconf',
copy_nav_params=True,
action=self.build_url('edit'), onsubmit=onsubmit,
form_buttons=[Button(stdmsgs.YES, cwaction='delete'),
Button(stdmsgs.NO, cwaction='cancel')])
done = set()
w(u'<ul>\n')
for entity in self.rset.entities():
if entity.eid in done:
continue
done.add(entity.eid)
subform = self.vreg.select('forms', 'base', req, entity=entity,
mainform=False)
form.form_add_subform(subform)
# don't use outofcontext view or any other that may contain inline edition form
w(u'<li>%s</li>' % tags.a(entity.view('textoutofcontext'),
href=entity.absolute_url()))
w(u'</ul>\n')
w(form.form_render())
class ClickAndEditFormView(FormViewMixIn, EntityView):
"""form used to permit ajax edition of an attribute of an entity in a view
(double-click on the field to see an appropriate edition widget)
"""
id = 'reledit'
__select__ = non_final_entity() & match_kwargs('rtype')
# FIXME editableField class could be toggleable from userprefs
_onclick = u"showInlineEditionForm(%(eid)s, '%(rtype)s', '%(divid)s')"
_defaultlandingzone = u'<img title="%(msg)s" src="data/file.gif" alt="%(msg)s"/>'
_landingzonemsg = _('click to edit this field')
# default relation vids according to cardinality
_one_rvid = 'incontext'
_many_rvid = 'csv'
def _compute_best_vid(self, entity, rtype, role):
if compute_cardinality(entity.e_schema,
entity.schema.rschema(rtype),
role) in '+*':
return self._many_rvid
return self._one_rvid
def _build_landing_zone(self, lzone):
return lzone or self._defaultlandingzone % {'msg' : self.req._(self._landingzonemsg)}
def _build_renderer(self, entity, rtype, role):
return self.vreg.select_object('formrenderers', 'base', self.req,
entity=entity,
display_label=False, display_help=False,
display_fields=[(rtype, role)],
table_class='', button_bar_class='buttonbar',
display_progress_div=False)
def cell_call(self, row, col, rtype=None, role='subject',
reload=False, # controls reloading the whole page after change
rvid=None, # vid to be applied to other side of rtype
default=None, # default value
landing_zone=None # prepend value with a separate html element to click onto
# (esp. needed when values are links)
):
"""display field to edit entity's `rtype` relation on click"""
assert rtype
assert role in ('subject', 'object')
if default is None:
default = xml_escape(self.req._('<no value>'))
entity = self.entity(row, col)
rschema = entity.schema.rschema(rtype)
# compute value, checking perms, build form
if rschema.is_final():
value = entity.printable_value(rtype) or default
if not entity.has_perm('update'):
self.w(value)
return
self._attribute_form(entity, value, rtype, role, reload,
row, col, default, landing_zone)
else:
dispctrl = uicfg.primaryview_display_ctrl.etype_get(entity.e_schema,
rtype, role)
vid = dispctrl.get('vid', 'reledit')
if vid != 'reledit': # reledit explicitly disabled
self.wview(vid, entity.related(rtype, role))
return
if rvid is None:
rvid = self._compute_best_vid(entity, rtype, role)
rset = entity.related(rtype, role)
candidate = self.view(rvid, rset, 'null')
value = candidate or default
if role == 'subject' and not rschema.has_perm(self.req, 'add',
fromeid=entity.eid):
return self.w(value)
elif role == 'object' and not rschema.has_perm(self.req, 'add',
toeid=entity.eid):
return self.w(value)
elif get_schema_property(entity.e_schema, rschema,
role, 'composite') == role:
self.warning('reledit cannot be applied : (... %s %s [composite])'
% (rtype, entity.e_schema))
return self.w(value)
self._relation_form(entity, value, rtype, role, reload, row, col,
rvid, default, landing_zone)
def _relation_form(self, entity, value, rtype, role, row, col, reload, rvid, default, lzone):
lzone = self._build_landing_zone(lzone)
divid = 'd%s' % make_uid('%s-%s' % (rtype, entity.eid))
event_data = {'divid' : divid, 'eid' : entity.eid, 'rtype' : rtype, 'vid' : rvid,
'reload' : reload, 'default' : default, 'role' : role,
'lzone' : lzone}
onsubmit = ("return inlineValidateRelationForm('%(rtype)s', '%(role)s', '%(eid)s', "
"'%(divid)s', %(reload)s, '%(vid)s', '%(default)s', '%(lzone)s');"
% event_data)
cancelclick = "hideInlineEdit(%s,\'%s\',\'%s\')" % (
entity.eid, rtype, divid)
form = self.vreg.select_object('forms', 'base', self.req, entity=entity,
domid='%s-form' % divid, cssstyle='display: none',
onsubmit=onsubmit, action='#',
form_buttons=[SubmitButton(),
Button(stdmsgs.BUTTON_CANCEL,
onclick=cancelclick)])
field = guess_field(entity.e_schema, entity.schema.rschema(rtype), role)
form.append_field(field)
self.w(u'<div id="%s-reledit" class="field">%s ' % (divid, value))
self.w(tags.div(lzone, klass='editableField', id=divid,
onclick=self._onclick % event_data))
renderer = self._build_renderer(entity, rtype, role)
self.w(form.form_render(renderer=renderer))
self.w(u'</div>')
def _attribute_form(self, entity, value, rtype, role, reload, row, col, default, lzone):
eid = entity.eid
divid = 'd%s' % make_uid('%s-%s' % (rtype, eid))
event_data = {'divid' : divid, 'eid' : eid, 'rtype' : rtype,
'reload' : dumps(reload), 'default' : default, 'lzone' : lzone}
onsubmit = ("return inlineValidateAttributeForm('%(rtype)s', '%(eid)s', '%(divid)s', "
"%(reload)s, '%(default)s', '%(lzone)s');")
buttons = [SubmitButton(stdmsgs.BUTTON_OK),
Button(stdmsgs.BUTTON_CANCEL,
onclick="hideInlineEdit(%s,\'%s\',\'%s\')" % (
eid, rtype, divid))]
form = self.vreg.select_object('forms', 'edition', self.req, self.rset,
row=row, col=col, form_buttons=buttons,
domid='%s-form' % divid, action='#',
cssstyle='display: none',
onsubmit=onsubmit % event_data)
self.w(tags.div(value, klass='editableField', id=divid,
onclick=self._onclick % event_data))
renderer = self._build_renderer(entity, rtype, role)
self.w(form.form_render(renderer=renderer))
class EditionFormView(FormViewMixIn, EntityView):
"""display primary entity edition form"""
id = 'edition'
# add yes() so it takes precedence over deprecated views in baseforms,
# though not baseforms based customized view
__select__ = one_line_rset() & non_final_entity() & yes()
title = _('edition')
def cell_call(self, row, col, **kwargs):
entity = self.complete_entity(row, col)
self.render_form(entity)
def render_form(self, entity):
"""fetch and render the form"""
self.form_title(entity)
form = self.vreg.select('forms', 'edition', self.req, rset=entity.rset,
row=entity.row, col=entity.col, entity=entity,
submitmsg=self.submited_message())
self.init_form(form, entity)
self.w(form.form_render(formvid=u'edition'))
def init_form(self, form, entity):
"""customize your form before rendering here"""
pass
def form_title(self, entity):
"""the form view title"""
ptitle = self.req._(self.title)
self.w(u'<div class="formTitle"><span>%s %s</span></div>' % (
entity.dc_type(), ptitle and '(%s)' % ptitle))
def submited_message(self):
"""return the message that will be displayed on successful edition"""
return self.req._('entity edited')
class CreationFormView(EditionFormView):
"""display primary entity creation form"""
id = 'creation'
__select__ = specified_etype_implements('Any') & yes()
title = _('creation')
def call(self, **kwargs):
"""creation view for an entity"""
etype = kwargs.pop('etype', self.req.form.get('etype'))
try:
entity = self.vreg.etype_class(etype)(self.req)
except:
self.w(self.req._('no such entity type %s') % etype)
else:
self.initialize_varmaker()
entity.eid = self.varmaker.next()
self.render_form(entity)
def form_title(self, entity):
"""the form view title"""
if '__linkto' in self.req.form:
if isinstance(self.req.form['__linkto'], list):
# XXX which one should be considered (case: add a ticket to a
# version in jpl)
rtype, linkto_eid, role = self.req.form['__linkto'][0].split(':')
else:
rtype, linkto_eid, role = self.req.form['__linkto'].split(':')
linkto_rset = self.req.eid_rset(linkto_eid)
linkto_type = linkto_rset.description[0][0]
if role == 'subject':
title = self.req.__('creating %s (%s %s %s %%(linkto)s)' % (
entity.e_schema, entity.e_schema, rtype, linkto_type))
else:
title = self.req.__('creating %s (%s %%(linkto)s %s %s)' % (
entity.e_schema, linkto_type, rtype, entity.e_schema))
msg = title % {'linkto' : self.view('incontext', linkto_rset)}
self.w(u'<div class="formTitle notransform"><span>%s</span></div>' % msg)
else:
super(CreationFormView, self).form_title(entity)
def url(self):
"""return the url associated with this view"""
return self.create_url(self.req.form.get('etype'))
def submited_message(self):
"""return the message that will be displayed on successful edition"""
return self.req._('entity created')
class CopyFormView(EditionFormView):
"""display primary entity creation form initialized with values from another
entity
"""
id = 'copy'
def render_form(self, entity):
"""fetch and render the form"""
# make a copy of entity to avoid altering the entity in the
# request's cache.
entity.complete()
self.newentity = copy(entity)
self.copying = entity
self.initialize_varmaker()
self.newentity.eid = self.varmaker.next()
self.w(u'<script type="text/javascript">updateMessage("%s");</script>\n'
% self.req._('Please note that this is only a shallow copy'))
super(CopyFormView, self).render_form(self.newentity)
del self.newentity
def init_form(self, form, entity):
"""customize your form before rendering here"""
super(CopyFormView, self).init_form(form, entity)
if entity.eid == self.newentity.eid:
form.form_add_hidden(eid_param('__cloned_eid', entity.eid),
self.copying.eid)
for rschema, _, role in form.relations_by_category(form.attrcategories,
'add'):
if not rschema.is_final():
# ensure relation cache is filed
rset = self.copying.related(rschema, role)
self.newentity.set_related_cache(rschema, role, rset)
def submited_message(self):
"""return the message that will be displayed on successful edition"""
return self.req._('entity copied')
class TableEditForm(forms.CompositeForm):
id = 'muledit'
domid = 'entityForm'
onsubmit = "return validateForm('%s', null);" % domid
form_buttons = [SubmitButton(_('validate modifications on selected items')),
ResetButton(_('revert changes'))]
def __init__(self, req, rset, **kwargs):
kwargs.setdefault('__redirectrql', rset.printable_rql())
super(TableEditForm, self).__init__(req, rset, **kwargs)
for row in xrange(len(self.rset)):
form = self.vreg.select('forms', 'edition', self.req, rset=self.rset,
row=row, attrcategories=('primary',),
mainform=False)
# XXX rely on the EntityCompositeFormRenderer to put the eid input
form.remove_field(form.field_by_name('eid'))
self.form_add_subform(form)
class TableEditFormView(FormViewMixIn, EntityView):
id = 'muledit'
__select__ = EntityView.__select__ & yes()
title = _('multiple edit')
def call(self, **kwargs):
"""a view to edit multiple entities of the same type the first column
should be the eid
"""
#self.form_title(entity)
form = self.vreg.select('forms', self.id, self.req, rset=self.rset)
self.w(form.form_render())
class InlineEntityEditionFormView(FormViewMixIn, EntityView):
id = 'inline-edition'
__select__ = non_final_entity() & match_kwargs('peid', 'rtype')
removejs = "removeInlinedEntity('%s', '%s', '%s')"
def call(self, **kwargs):
"""redefine default call() method to avoid automatic
insertions of <div class="section"> between each row of
the resultset
"""
rset = self.rset
for i in xrange(len(rset)):
self.wview(self.id, rset, row=i, **kwargs)
def cell_call(self, row, col, peid, rtype, role='subject', **kwargs):
"""
:param peid: the parent entity's eid hosting the inline form
:param rtype: the relation bridging `etype` and `peid`
:param role: the role played by the `peid` in the relation
"""
entity = self.entity(row, col)
divonclick = "restoreInlinedEntity('%s', '%s', '%s')" % (peid, rtype,
entity.eid)
self.render_form(entity, peid, rtype, role, divonclick=divonclick)
def render_form(self, entity, peid, rtype, role, **kwargs):
"""fetch and render the form"""
form = self.vreg.select('forms', 'edition', self.req, entity=entity,
form_renderer_id='inline', mainform=False,
copy_nav_params=False)
self.add_hiddens(form, entity, peid, rtype, role)
divid = '%s-%s-%s' % (peid, rtype, entity.eid)
title = self.schema.rschema(rtype).display_name(self.req, role)
removejs = self.removejs % (peid, rtype,entity.eid)
countkey = '%s_count' % rtype
try:
self.req.data[countkey] += 1
except:
self.req.data[countkey] = 1
self.w(form.form_render(divid=divid, title=title, removejs=removejs,
counter=self.req.data[countkey], **kwargs))
def add_hiddens(self, form, entity, peid, rtype, role):
# to ease overriding (see cubes.vcsfile.views.forms for instance)
if self.keep_entity(form, entity, peid, rtype):
if entity.has_eid():
rval = entity.eid
else:
rval = INTERNAL_FIELD_VALUE
form.form_add_hidden('edit%s-%s:%s' % (role[0], rtype, peid), rval)
form.form_add_hidden(name='%s:%s' % (rtype, peid), value=entity.eid,
id='rel-%s-%s-%s' % (peid, rtype, entity.eid))
def keep_entity(self, form, entity, peid, rtype):
if not entity.has_eid():
return True
# are we regenerating form because of a validation error ?
if form.form_previous_values:
cdvalues = self.req.list_form_param(eid_param(rtype, peid),
form.form_previous_values)
if unicode(entity.eid) not in cdvalues:
return False
return True
class InlineEntityCreationFormView(InlineEntityEditionFormView):
id = 'inline-creation'
__select__ = (match_kwargs('peid', 'rtype')
& specified_etype_implements('Any'))
removejs = "removeInlineForm('%s', '%s', '%s')"
def call(self, etype, peid, rtype, role='subject', **kwargs):
"""
:param etype: the entity type being created in the inline form
:param peid: the parent entity's eid hosting the inline form
:param rtype: the relation bridging `etype` and `peid`
:param role: the role played by the `peid` in the relation
"""
try:
entity = self.vreg.etype_class(etype)(self.req, None, None)
except:
self.w(self.req._('no such entity type %s') % etype)
return
self.initialize_varmaker()
entity.eid = self.varmaker.next()
self.render_form(entity, peid, rtype, role)