"""This module regroups a set of structures that may be used to configure
various places of the generated web interface.
Primary view configuration
``````````````````````````
:primaryview_section:
where to display a relation in primary view. Value may be one of:
* 'attributes', display in the attributes section
* 'relations', display in the relations section (below attributes)
* 'sideboxes', display in the side boxes (beside attributes)
* 'hidden', don't display
:primaryview_display_ctrl:
how to display a relation in primary view. Values are dict with some of the
following keys:
:vid:
identifier of a view to use to display the result set. Defaults depends on
the section:
* 'attributes' section: 'reledit' view
* 'relations' section: 'autolimited' view
* 'sideboxes' section: 'sidebox' view
:label:
label for the relations section or side box
:limit:
boolean telling if the results should be limited according to the
configuration
:filter:
callback taking the related result set as argument and returning it
filtered
:order:
int used to control order within a section. When not specified,
automatically set according to order in which tags are added.
Notice those values are only considered if the relation is in a displayed
section (controlled by :attr:`primaryview_section`)
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.
Automatic form configuration
````````````````````````````
:autoform_section:
where to display a relation in entity form, according to form type.
`tag_attribute`, `tag_subject_of` and `tag_object_of` methods for this
relation tags expect two arguments additionaly to the relation key: a
`formtype` and a `section`.
formtype may be one of:
* 'main', the main entity form
* 'inlined', the form for an entity inlined into another's one
* 'muledit', the multiple entity (table) form
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)
:autoform_field:
specify a custom field instance to use for a relation
:autoform_field_kwargs:
specify a dictionnary of arguments to give to the field constructor for a
relation. You usually want to use either `autoform_field` or
`autoform_field_kwargs`, not both. The later won't have any effect if the
former is specified for a relation.
:autoform_permissions_overrides:
provide a way to by-pass security checking for dark-corner case where it can't
be verified properly. XXX documents.
:organization: Logilab
:copyright: 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"
from warnings import warn
from cubicweb import neg_role
from cubicweb.rtags import (RelationTags, RelationTagsBool, RelationTagsSet,
RelationTagsDict, register_rtag, _ensure_str_key)
from cubicweb.schema import META_RTYPES
from cubicweb.web import formwidgets
# 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)
def init(self, schema, check=True):
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 = {'EmailAddress': 'subobject',
'CWUser': 'system',
'CWGroup': 'system',
'CWPermission': 'system',
'CWCache': 'system',
'Workflow': 'system',
'State': 'hidden',
'BaseTransition': 'hidden',
'Transition': 'hidden',
'WorkflowTransition': 'hidden',
}
indexview_etype_section = InitializableDict(EmailAddress='subobject',
CWUser='system',
CWGroup='system',
CWPermission='system',
CWCache='system',
Workflow='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', 'hidden'),
'muledit': ('attributes', 'hidden'),
}
@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()
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'] = 'hidden'
# recompute formsections and set it to avoid recomputing
for formtype, section in sectdict.iteritems():
formsections.add('%s_%s' % (formtype, section))
key = _ensure_str_key( (sschema, rschema, oschema, role) )
self._tagdefs[key] = formsections
def tag_relation(self, key, formtype, section=None):
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[key]
def relations_by_section(self, entity, formtype, section,
permission=None, 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
cw = entity._cw
for rschema, targetschemas, role in eschema.relation_definitions(True):
# check category first, potentially lower cost than checking
# permission which may imply rql queries
_targetschemas = []
for tschema in targetschemas:
if not tag in self.etype_get(eschema, rschema, role, tschema):
continue
rdef = rschema.role_rdef(eschema, tschema, role)
if permission is not None and \
not ((not strict and rdef.has_local_role(permission)) or
rdef.has_perm(cw, permission, fromeid=eid)):
continue
_targetschemas.append(tschema)
if not _targetschemas:
continue
targetschemas = _targetschemas
if permission is not None:
rdef = eschema.rdef(rschema, role=role, targettype=targetschemas[0])
# 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 rschema.final:
if not rdef.has_perm(cw, permission, fromeid=eid):
continue
elif role == 'subject':
# on relation with cardinality 1 or ?, we need delete perm as well
# if the relation is already set
if (permission == '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 (permission == '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 rtag is deprecated, use autoform_section '
'with inlined formtype and "attributes" or "hidden" section',
DeprecationWarning, stacklevel=2)
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')