refactor so that rql rewriter may be used outside the server. Enhance it to be usable for RRQLExpression as well
"""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
from cubicweb.view import EntityView
from cubicweb.common import tags
from cubicweb.web import INTERNAL_FIELD_VALUE, RequestError, stdmsgs, eid_param
from cubicweb.web import uicfg
from cubicweb.web.form import FormViewMixIn, FieldNotFound
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(forms.CompositeForm):
id = 'deleteconf'
__select__ = non_final_entity()
domid = 'deleteconf'
copy_nav_params = True
form_buttons = [Button(stdmsgs.YES, cwaction='delete'),
Button(stdmsgs.NO, cwaction='cancel')]
@property
def action(self):
return self.build_url('edit')
def __init__(self, *args, **kwargs):
super(DeleteConfForm, self).__init__(*args, **kwargs)
done = set()
for entity in self.rset.entities():
if entity.eid in done:
continue
done.add(entity.eid)
subform = self.vreg['forms'].select('base', self.req, entity=entity,
mainform=False)
self.form_add_subform(subform)
class DeleteConfFormView(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['forms'].select(self.id, req, rset=self.rset,
onsubmit=onsubmit)
w(u'<ul>\n')
for entity in self.rset.entities():
# 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 a relation or attribute of an entity
in a view, if logged user have the permission to edit it.
(double-click on the field to see an appropriate edition widget).
"""
id = 'doreledit'
__select__ = non_final_entity() & match_kwargs('rtype')
# FIXME editableField class could be toggleable from userprefs
# add metadata to allow edition of metadata attributes (not considered by
# edition form by default)
attrcategories = ('primary', 'secondary', 'metadata')
_onclick = u"showInlineEditionForm(%(eid)s, '%(rtype)s', '%(divid)s')"
_defaultlandingzone = (u'<img title="%(msg)s" '
'src="data/accessories-text-editor.png" '
'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, eschema, rschema, role):
if eschema.cardinality(rschema, role) in '+*':
return self._many_rvid
return self._one_rvid
def _build_landing_zone(self, lzone):
return lzone or self._defaultlandingzone % {'msg' : xml_escape(self.req._(self._landingzonemsg))}
def _build_renderer(self, entity, rtype, role):
return self.vreg['formrenderers'].select(
'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 _build_form(self, entity, rtype, role, formid, default, onsubmit, reload,
extradata=None, **formargs):
divid = 'd%s' % make_uid('%s-%s' % (rtype, entity.eid))
event_data = {'divid' : divid, 'eid' : entity.eid, 'rtype' : rtype,
'reload' : dumps(reload), 'default' : default}
if extradata:
event_data.update(extradata)
onsubmit %= event_data
cancelclick = "hideInlineEdit(%s,\'%s\',\'%s\')" % (entity.eid, rtype,
divid)
form = self.vreg['forms'].select(
formid, self.req, entity=entity, domid='%s-form' % divid,
cssstyle='display: none', onsubmit=onsubmit, action='#',
form_buttons=[SubmitButton(), Button(stdmsgs.BUTTON_CANCEL,
onclick=cancelclick)],
**formargs)
form.event_data = event_data
return form
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 (non final relations only)
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)
lzone = self._build_landing_zone(landing_zone)
# compute value, checking perms, build form
if rschema.is_final():
onsubmit = ("return inlineValidateAttributeForm('%(rtype)s', '%(eid)s', '%(divid)s', "
"%(reload)s, '%(default)s');")
form = self._build_form(
entity, rtype, role, 'edition', default, onsubmit, reload,
attrcategories=self.attrcategories)
if not self.should_edit_attribute(entity, rschema, role, form):
return
value = entity.printable_value(rtype) or default
self.attribute_form(lzone, value, form,
self._build_renderer(entity, rtype, role))
else:
if rvid is None:
rvid = self._compute_best_vid(entity.e_schema, rschema, role)
if not self.should_edit_relation(entity, rschema, role, rvid):
return
rset = entity.related(rtype, role)
if rset:
value = self.view(rvid, rset)
else:
value = default
onsubmit = ("return inlineValidateRelationForm('%(rtype)s', '%(role)s', '%(eid)s', "
"'%(divid)s', %(reload)s, '%(vid)s', '%(default)s', '%(lzone)s');")
form = self._build_form(
entity, rtype, role, 'base', default, onsubmit, reload,
dict(vid=rvid, role=role, lzone=lzone))
field = guess_field(entity.e_schema, entity.schema.rschema(rtype), role)
form.append_field(field)
self.relation_form(lzone, value, form,
self._build_renderer(entity, rtype, role))
def should_edit_attribute(self, entity, rschema, role, form):
rtype = str(rschema)
ttype = rschema.targets(entity.id, role)[0]
afs = uicfg.autoform_section.etype_get(entity.id, rtype, role, ttype)
if not (afs in self.attrcategories and entity.has_perm('update')):
self.w(entity.printable_value(rtype))
return False
try:
field = form.field_by_name(rtype, role)
except FieldNotFound:
self.w(entity.printable_value(rtype))
return False
return True
def should_edit_relation(self, entity, rschema, role, rvid):
if ((role == 'subject' and not rschema.has_perm(self.req, 'add',
fromeid=entity.eid))
or
(role == 'object' and not rschema.has_perm(self.req, 'add',
toeid=entity.eid))):
self.wview(rvid, entity.related(str(rschema), role), 'null')
return False
return True
def attribute_form(self, lzone, value, form, renderer):
"""div (class=field)
+-xxx div
| +-xxx div (class=editableField)
| | +-landing zone
| +-value-xxx div
| +-value
+-form-xxx div
"""
w = self.w
w(u'<div class="field">')
w(u'<div id="%s" style="display: inline">' % form.event_data['divid'])
w(tags.div(lzone, klass='editableField',
onclick=self._onclick % form.event_data))
w(u'<div id="value-%s" style="display: inline">%s</div>' %
(form.event_data['divid'], value))
w(u'</div>')
w(form.form_render(renderer=renderer))
w(u'</div>')
def relation_form(self, lzone, value, form, renderer):
"""xxx-reledit div (class=field)
+-xxx div (class="editableField")
| +-landing zone
+-value
+-form-xxx div
"""
w = self.w
w(u'<div id="%s-reledit" class="field">' % form.event_data['divid'])
w(tags.div(lzone, klass='editableField', id=form.event_data['divid'],
onclick=self._onclick % form.event_data))
w(value)
w(form.form_render(renderer=renderer))
w(u'</div>')
class AutoClickAndEditFormView(ClickAndEditFormView):
"""same as ClickAndEditFormView but checking if the view *should* be applied
by checking uicfg configuration and composite relation property.
"""
id = 'reledit'
def should_edit_relation(self, entity, rschema, role, rvid):
eschema = entity.e_schema
rtype = str(rschema)
# XXX check autoform_section. what if 'generic'?
dispctrl = uicfg.primaryview_display_ctrl.etype_get(eschema, rtype, role)
vid = dispctrl.get('vid', 'reledit')
if vid != 'reledit': # reledit explicitly disabled
self.wview(vid, entity.related(rtype, role), 'null')
return False
if eschema.role_rproperty(role, rschema, 'composite') == role:
self.wview(rvid, entity.related(rtype, role), 'null')
return False
return super(AutoClickAndEditFormView, self).should_edit_relation(
entity, rschema, role, rvid)
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['forms'].select('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:
etype = self.vreg.case_insensitive_etypes[etype.lower()]
except KeyError:
raise RequestError(self.req._('no such entity type %s') % etype)
entity = self.vreg['etypes'].etype_class(etype)(self.req)
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'
warning_message = _('Please note that this is only a shallow 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._(self.warning_message))
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['forms'].select('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['forms'].select(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['forms'].select('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['etypes'].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)