[web] stop having actions configurable through cwproperties: this clutter site management and .po files for a useless fonctionnality (which, where and how actions are displayed is handled by code)
#:organization: Logilab
#:copyright: 2009-2010 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
"""This module (``cubicweb.web.uicfg``) regroups a set of structures that may be used to configure
various options of the generated web interface.
To configure the interface generation, we use ``RelationTag`` objects.
Primary view configuration
``````````````````````````
XXX section moved to the doc, is maintained there
If you want to customize the primary view of an entity, overriding the primary
view class may not be necessary. For simple adjustments (attributes or relations
display locations and styles), a much simpler way is to use uicfg.
Attributes/relations display location
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
In the primary view, there are 3 sections where attributes and relations can be
displayed (represented in pink in the image below):
* attributes
* relations
* sideboxes
.. image:: ../../images/primaryview_template.png
**Attributes** can only be displayed in the attributes section (default
behavior). They can also be hidden.
For instance, to hide the ``title`` attribute of the ``Blog`` entity:
.. sourcecode:: python
from cubicweb.web import uicfg
uicfg.primaryview_section.tag_attribute(('Blog', 'title'), 'hidden')
**Relations** can be either displayed in one of the three sections or hidden.
For relations, there are two methods:
* ``tag_object_of`` for modifying the primary view of the object
* ``tag_subject_of`` for modifying the primary view of the subject
These two methods take two arguments:
* a triplet ``(subject, relation_name, object)``, where subject or object can be replaced with ``'*'``
* the section name or ``hidden``
.. sourcecode:: python
# hide every relation ``entry_of`` in the ``Blog`` primary view
uicfg.primaryview_section.tag_object_of(('*', 'entry_of', 'Blog'), 'hidden')
# display ``entry_of`` relations in the ``relations`` section in the ``BlogEntry`` primary view
uicfg.primaryview_section.tag_subject_of(('BlogEntry', 'entry_of', '*'),
'relations')
Display content
^^^^^^^^^^^^^^^
You can use ``primaryview_display_ctrl`` to customize the display of attributes
or relations. Values of ``primaryview_display_ctrl`` are dictionaries.
Common keys for attributes and relations are:
* ``vid``: specifies the regid of the view for displaying the attribute or the relation.
If ``vid`` is not specified, the default value depends on the section:
* ``attributes`` section: 'reledit' view
* ``relations`` section: 'autolimited' view
* ``sideboxes`` section: 'sidebox' view
* ``order``: int used to control order within a section. When not specified,
automatically set according to order in which tags are added.
Keys for relations only:
* ``label``: label for the relations section or side box
* ``showlabel``: boolean telling whether the label is displayed
* ``limit``: boolean telling if the results should be limited. If so, a link to all results is displayed
* ``filter``: callback taking the related result set as argument and returning it filtered
.. sourcecode:: python
# in ``CWUser`` primary view, display ``created_by`` relations in relations section
uicfg.primaryview_section.tag_object_of(('*', 'created_by', 'CWUser'), 'relations')
# displays this relation as a list, sets the label, limits the number of results and filters on comments
uicfg.primaryview_display_ctrl.tag_object_of(
('*', 'created_by', 'CWUser'),
{'vid': 'list', 'label': _('latest comment(s):'), 'limit': True,
'filter': lambda rset: rset.filtered_rset(lambda x: x.e_schema == 'Comment')})
.. Warning:: with the ``primaryview_display_ctrl`` rtag, the subject or the
object of the relation is ignored for respectively ``tag_object_of`` or
``tag_subject_of``. To avoid warnings during execution, they should be set to
``'*'``.
Index view configuration
````````````````````````
:indexview_etype_section:
entity type category in the index/manage page. May be one of:
* ``application``
* ``system``
* ``schema``
* ``subobject`` (not displayed by default)
Actions box configuration
`````````````````````````
:actionbox_appearsin_addmenu:
simple boolean relation tags used to control the "add entity" submenu.
Relations whose rtag is True will appears, other won't.
.. sourcecode:: python
# Adds all subjects of the entry_of relation in the add menu of the ``Blog`` primary view
uicfg.actionbox_appearsin_addmenu.tag_object_of(('*', 'entry_of', 'Blog'), True)
Automatic form configuration
````````````````````````````
Attributes/relations display location
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
``uicfg.autoform_section`` specifies where to display a relation in
creation/edition entity form for a given form type. ``tag_attribute``,
``tag_subject_of`` and ``tag_object_of`` methods for this relation tag expect
two arguments additionally to the relation key: a ``formtype`` and a
``section``.
formtype may be one of:
* ``main``, the main entity form (via the modify action)
* ``inlined``, the form for an entity inlined into another form
* ``muledit``, the table form to edit multiple entities
section may be one of:
* ``hidden``, don't display
* ``attributes``, display in the attributes section
* ``relations``, display in the relations section, using the generic relation
selector combobox (available in main form only, and not for attribute
relation)
* ``inlined``, display target entity of the relation in an inlined form
(available in main form only, and not for attribute relation)
* ``metadata``, display in a special metadata form (NOT YET IMPLEMENTED, subject
to changes)
By default, mandatory relations are displayed in the ``attributes`` section,
others in ``relations`` section.
Change default fields
^^^^^^^^^^^^^^^^^^^^^
Use ``autoform_field`` to replace the default field type of an attribute.
.. Warning:
``autoform_field_kwargs`` should usually be used instead of
``autoform_field``. Do not use both methods for the same relation!
Customize field options
^^^^^^^^^^^^^^^^^^^^^^^
In order to customize field options (see :class:`cubicweb.web.formfields.Field`
for a detailed list of options), use ``autoform_field_kwargs``. This rtag takes
a relation triplet and a dictionary as arguments.
.. sourcecode:: python
# Change the content of the combobox
# here ``ticket_done_in_choices`` is a function which returns a list of
# elements to populate the combobox
uicfg.autoform_field_kwargs.tag_subject_of(('Ticket', 'done_in', '*'), {'sort': False,
'choices': ticket_done_in_choices})
Overriding permissions
^^^^^^^^^^^^^^^^^^^^^^
``autoform_permissions_overrides`` provides a way to by-pass security checking
for dark-corner case where it can't be verified properly. XXX documents.
"""
__docformat__ = "restructuredtext en"
from warnings import warn
from logilab.common.compat import any
from cubicweb import neg_role
from cubicweb.rtags import (RelationTags, RelationTagsBool, RelationTagsSet,
RelationTagsDict, register_rtag, _ensure_str_key)
from cubicweb.schema import META_RTYPES
# primary view configuration ##################################################
def init_primaryview_section(rtag, sschema, rschema, oschema, role):
if rtag.get(sschema, rschema, oschema, role) is None:
rdef = rschema.rdef(sschema, oschema)
if rschema.final:
if rschema.meta or sschema.is_metadata(rschema) \
or oschema.type in ('Password', 'Bytes'):
section = 'hidden'
else:
section = 'attributes'
else:
if rdef.role_cardinality(role) in '1+':
section = 'attributes'
elif rdef.composite == neg_role(role):
section = 'relations'
else:
section = 'sideboxes'
rtag.tag_relation((sschema, rschema, oschema, role), section)
primaryview_section = RelationTags('primaryview_section',
init_primaryview_section,
frozenset(('attributes', 'relations',
'sideboxes', 'hidden')))
class DisplayCtrlRelationTags(RelationTagsDict):
def __init__(self, *args, **kwargs):
super(DisplayCtrlRelationTags, self).__init__(*args, **kwargs)
self._counter = 0
def tag_relation(self, key, tag):
tag = super(DisplayCtrlRelationTags, self).tag_relation(key, tag)
self._counter += 1
tag.setdefault('order', self._counter)
def tag_subject_of(self, key, tag):
subj, rtype, obj = key
if obj != '*':
self.warning('using explict target type in display_ctrl.tag_subject_of() '
'has no effect, use (%s, %s, "*") instead of (%s, %s, %s)',
subj, rtype, subj, rtype, obj)
super(DisplayCtrlRelationTags, self).tag_subject_of((subj, rtype, '*'), tag)
def tag_object_of(self, key, tag):
subj, rtype, obj = key
if subj != '*':
self.warning('using explict subject type in display_ctrl.tag_object_of() '
'has no effect, use ("*", %s, %s) instead of (%s, %s, %s)',
rtype, obj, subj, rtype, obj)
super(DisplayCtrlRelationTags, self).tag_object_of(('*', rtype, obj), tag)
def init_primaryview_display_ctrl(rtag, sschema, rschema, oschema, role):
if role == 'subject':
oschema = '*'
label = rschema.type
else:
sschema = '*'
label = '%s_%s' % (rschema, role)
rtag.setdefault((sschema, rschema, oschema, role), 'label', label)
rtag.setdefault((sschema, rschema, oschema, role), 'order', rtag._counter)
primaryview_display_ctrl = DisplayCtrlRelationTags('primaryview_display_ctrl',
init_primaryview_display_ctrl)
# index view configuration ####################################################
# entity type section in the index/manage page. May be one of
# * 'application'
# * 'system'
# * 'schema'
# * 'hidden'
# * 'subobject' (not displayed by default)
class InitializableDict(dict):
def __init__(self, *args, **kwargs):
super(InitializableDict, self).__init__(*args, **kwargs)
register_rtag(self)
self.__defaults = dict(self)
def init(self, schema, check=True):
self.update(self.__defaults)
for eschema in schema.entities():
if eschema.final:
continue
if eschema.schema_entity():
self.setdefault(eschema, 'schema')
elif eschema.is_subobject(strict=True):
self.setdefault(eschema, 'subobject')
else:
self.setdefault(eschema, 'application')
indexview_etype_section = InitializableDict(
EmailAddress='subobject',
# entity types in the 'system' table by default (managers only)
CWUser='system', CWGroup='system',
CWPermission='system',
CWCache='system',
Workflow='system',
ExternalUri='system',
Bookmark='system',
)
# autoform.AutomaticEntityForm configuration ##################################
def _formsections_as_dict(formsections):
result = {}
for formsection in formsections:
formtype, section = formsection.split('_', 1)
result[formtype] = section
return result
def _card_and_comp(sschema, rschema, oschema, role):
rdef = rschema.rdef(sschema, oschema)
if role == 'subject':
card = rdef.cardinality[0]
composed = not rschema.final and rdef.composite == 'object'
else:
card = rdef.cardinality[1]
composed = not rschema.final and rdef.composite == 'subject'
return card, composed
class AutoformSectionRelationTags(RelationTagsSet):
"""autoform relations'section"""
bw_tag_map = {
'primary': {'main': 'attributes', 'muledit': 'attributes'},
'secondary': {'main': 'attributes', 'muledit': 'hidden'},
'metadata': {'main': 'metadata'},
'generic': {'main': 'relations'},
'generated': {'main': 'hidden'},
}
_allowed_form_types = ('main', 'inlined', 'muledit')
_allowed_values = {'main': ('attributes', 'inlined', 'relations',
'metadata', 'hidden'),
'inlined': ('attributes', 'inlined', 'hidden'),
'muledit': ('attributes', 'hidden'),
}
def init(self, schema, check=True):
super(AutoformSectionRelationTags, self).init(schema, check)
self.apply(schema, self._initfunc_step2)
@staticmethod
def _initfunc(self, sschema, rschema, oschema, role):
formsections = self.init_get(sschema, rschema, oschema, role)
if formsections is None:
formsections = self.tag_container_cls()
if not any(tag.startswith('inlined') for tag in formsections):
if not rschema.final:
negsects = self.init_get(sschema, rschema, oschema, neg_role(role))
if 'main_inlined' in negsects:
formsections.add('inlined_hidden')
key = _ensure_str_key( (sschema, rschema, oschema, role) )
self._tagdefs[key] = formsections
@staticmethod
def _initfunc_step2(self, sschema, rschema, oschema, role):
formsections = self.get(sschema, rschema, oschema, role)
sectdict = _formsections_as_dict(formsections)
if rschema in META_RTYPES:
sectdict.setdefault('main', 'hidden')
sectdict.setdefault('muledit', 'hidden')
sectdict.setdefault('inlined', 'hidden')
# ensure we have a tag for each form type
if not 'main' in sectdict:
if not rschema.final and (
sectdict.get('inlined') == 'attributes' or
'inlined_attributes' in self.init_get(sschema, rschema, oschema,
neg_role(role))):
sectdict['main'] = 'hidden'
elif sschema.is_metadata(rschema):
sectdict['main'] = 'metadata'
else:
card, composed = _card_and_comp(sschema, rschema, oschema, role)
if card in '1+':
sectdict['main'] = 'attributes'
if not 'muledit' in sectdict:
sectdict['muledit'] = 'attributes'
elif rschema.final:
sectdict['main'] = 'attributes'
else:
sectdict['main'] = 'relations'
if not 'muledit' in sectdict:
sectdict['muledit'] = 'hidden'
if sectdict['main'] == 'attributes':
card, composed = _card_and_comp(sschema, rschema, oschema, role)
if card in '1+' and not composed:
sectdict['muledit'] = 'attributes'
if not 'inlined' in sectdict:
sectdict['inlined'] = sectdict['main']
# recompute formsections and set it to avoid recomputing
for formtype, section in sectdict.iteritems():
formsections.add('%s_%s' % (formtype, section))
def tag_relation(self, key, formtype, section=None):
if isinstance(formtype, tuple):
for ftype in formtype:
self.tag_relation(key, ftype, section)
return
if section is None:
tag = formtype
for formtype, section in self.bw_tag_map[tag].iteritems():
warn('[3.6] add tag to autoform section by specifying form '
'type and tag. Replace %s by formtype="%s", section="%s"'
% (tag, formtype, section), DeprecationWarning,
stacklevel=3)
self.tag_relation(key, formtype, section)
assert formtype in self._allowed_form_types, \
'formtype should be in (%s), not %s' % (
','.join(self._allowed_form_types), formtype)
assert section in self._allowed_values[formtype], \
'section for %s should be in (%s), not %s' % (
formtype, ','.join(self._allowed_values[formtype]), section)
rtags = self._tagdefs.setdefault(_ensure_str_key(key),
self.tag_container_cls())
# remove previous section for this form type if any
if rtags:
for tag in rtags.copy():
if tag.startswith(formtype):
rtags.remove(tag)
rtags.add('%s_%s' % (formtype, section))
return rtags
def init_get(self, *key):
return super(AutoformSectionRelationTags, self).get(*key)
def get(self, *key):
# overriden to avoid recomputing done in parent classes
return self._tagdefs.get(key, ())
def relations_by_section(self, entity, formtype, section, permission,
strict=False):
"""return a list of (relation schema, target schemas, role) for the
given entity matching categories and permission.
`strict`:
bool telling if having local role is enough (strict = False) or not
"""
tag = '%s_%s' % (formtype, section)
eschema = entity.e_schema
permsoverrides = autoform_permissions_overrides
if entity.has_eid():
eid = entity.eid
else:
eid = None
strict = False
if permission == 'update':
assert section in ('attributes', 'metadata', 'hidden')
relpermission = 'add'
else:
assert section not in ('attributes', 'metadata', 'hidden')
relpermission = permission
cw = entity._cw
for rschema, targetschemas, role in eschema.relation_definitions(True):
_targetschemas = []
for tschema in targetschemas:
# check section's tag first, potentially lower cost than
# checking permission which may imply rql queries
if not tag in self.etype_get(eschema, rschema, role, tschema):
continue
rdef = rschema.role_rdef(eschema, tschema, role)
if rschema.final:
if not rdef.has_perm(cw, permission, eid=eid,
creating=eid is None):
continue
elif strict or not rdef.has_local_role(relpermission):
if role == 'subject':
if not rdef.has_perm(cw, relpermission, fromeid=eid):
continue
elif role == 'object':
if not rdef.has_perm(cw, relpermission, toeid=eid):
continue
_targetschemas.append(tschema)
if not _targetschemas:
continue
targetschemas = _targetschemas
rdef = eschema.rdef(rschema, role=role, targettype=targetschemas[0])
# XXX tag allowing to hijack the permission machinery when
# permission is not verifiable until the entity is actually
# created...
if eid is None and '%s_on_new' % permission in permsoverrides.etype_get(eschema, rschema, role):
yield (rschema, targetschemas, role)
continue
if not rschema.final and role == 'subject':
# on relation with cardinality 1 or ?, we need delete perm as well
# if the relation is already set
if (relpermission == 'add'
and rdef.role_cardinality(role) in '1?'
and eid and entity.related(rschema.type, role)
and not rdef.has_perm(cw, 'delete', fromeid=eid,
toeid=entity.related(rschema.type, role)[0][0])):
continue
elif role == 'object':
# on relation with cardinality 1 or ?, we need delete perm as well
# if the relation is already set
if (relpermission == 'add'
and rdef.role_cardinality(role) in '1?'
and eid and entity.related(rschema.type, role)
and not rdef.has_perm(cw, 'delete', toeid=eid,
fromeid=entity.related(rschema.type, role)[0][0])):
continue
yield (rschema, targetschemas, role)
autoform_section = AutoformSectionRelationTags('autoform_section')
# relations'field class
autoform_field = RelationTags('autoform_field')
# relations'field explicit kwargs (given to field's __init__)
autoform_field_kwargs = RelationTagsDict()
# set of tags of the form <action>_on_new on relations. <action> is a
# schema action (add/update/delete/read), and when such a tag is found
# permissions checking is by-passed and supposed to be ok
autoform_permissions_overrides = RelationTagsSet('autoform_permissions_overrides')
# boxes.EditBox configuration #################################################
# 'link' / 'create' relation tags, used to control the "add entity" submenu
def init_actionbox_appearsin_addmenu(rtag, sschema, rschema, oschema, role):
if rtag.get(sschema, rschema, oschema, role) is None:
if rschema in META_RTYPES:
rtag.tag_relation((sschema, rschema, oschema, role), False)
return
rdef = rschema.rdef(sschema, oschema)
if not rdef.role_cardinality(role) in '?1' and rdef.composite == role:
rtag.tag_relation((sschema, rschema, oschema, role), True)
actionbox_appearsin_addmenu = RelationTagsBool('actionbox_appearsin_addmenu',
init_actionbox_appearsin_addmenu)
# deprecated ###################################################################
class AutoformIsInlined(RelationTags):
"""XXX for < 3.6 bw compat"""
def tag_relation(self, key, tag):
warn('autoform_is_inlined is deprecated, use autoform_section '
'with formtype="main", section="inlined"',
DeprecationWarning, stacklevel=3)
section = tag and 'inlined' or 'hidden'
autoform_section.tag_relation(key, 'main', section)
# inlined view flag for non final relations: when True for an entry, the
# entity(ies) at the other end of the relation will be editable from the
# form of the edited entity
autoform_is_inlined = AutoformIsInlined('autoform_is_inlined')