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##############################################################################
#
# Copyright (c) 2002, 2006 Nexedi SARL and Contributors. All Rights Reserved.
# Jean-Paul Smets-Solanes <jp@nexedi.com>
# Romain Courteaud <romain@nexedi.com>
#
# WARNING: This program as such is intended to be used by professional
# programmers who take the whole responsability of assessing all potential
# consequences resulting from its eventual inadequacies and bugs
# End users who are looking for a ready-to-use solution with commercial
# garantees and support are strongly adviced to contract a Free Software
# Service Company
#
# This program is Free Software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 2
# of the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
#
##############################################################################
from Products.Formulator import Widget, Validator
from Products.Formulator.Field import ZMIField
from Products.Formulator.DummyField import fields
from Products.ERP5Type.Utils import convertToUpperCase
from Products.CMFCore.utils import getToolByName
from Products.PythonScripts.Utility import allow_class
from Products.ERP5Type.Message import Message
from Products.ERP5Form import MultiRelationField
from Products.ERP5Form.MultiRelationField import MAX_SELECT, \
NEW_CONTENT_PREFIX, \
SUB_FIELD_ID, ITEM_ID, \
NO_VALUE
from types import StringType
from AccessControl import ClassSecurityInfo
from zLOG import LOG
class RelationStringFieldWidget(
MultiRelationField.MultiRelationStringFieldWidget):
"""
RelationStringField widget
Works like a string field but includes one buttons
- one search button which updates the field and sets a relation
- creates object if not there
"""
property_names = Widget.TextWidget.property_names + \
MultiRelationField.MultiRelationStringFieldWidget.local_property_names
default_widget_rendering_instance = Widget.TextWidgetInstance
default = Widget.TextWidget.default
def _generateRenderValueList(self, field, key, value, REQUEST):
# value = value or NO_VALUE
if REQUEST.get(
'read_only_%s' % REQUEST.get(
'field__proxyfield_%s_%s_default' % (field.id, field._p_oid),
field).getId()[3:], 0):
return []
else:
relation_field_id = field.generate_subfield_key(SUB_FIELD_ID, key=key)
relation_item_key = field.generate_subfield_key(ITEM_ID, key=key)
relation_item_list = REQUEST.get(relation_item_key, [])
return [(Widget.TextWidgetInstance, relation_field_id,
relation_item_list, value, None)]
class RelationEditor(MultiRelationField.MultiRelationEditor):
"""
A class holding all values required to update a relation
"""
def __call__(self, REQUEST):
MultiRelationField.MultiRelationEditor.__call__(self, REQUEST)
value = REQUEST.get(self.field_id)
if value is not None:
REQUEST.set(self.field_id, value[0])
allow_class(RelationEditor)
class RelationStringFieldValidator(
MultiRelationField.MultiRelationStringFieldValidator,
Validator.StringValidator):
"""
Validation includes lookup of relared instances
"""
message_names = Validator.StringValidator.message_names + \
MultiRelationField.MultiRelationStringFieldValidator.message_names
property_names = Validator.StringValidator.property_names + \
MultiRelationField.MultiRelationStringFieldValidator.property_names
# Delete double in order to keep a usable ZMI...
# Need to keep order !
_v_dict = {}
_v_message_name_list = []
for message_name in message_names:
if not _v_dict.has_key(message_name):
_v_message_name_list.append(message_name)
_v_dict[message_name] = 1
message_names = _v_message_name_list
_v_dict = {}
_v_property_name_list = []
for property_name in property_names:
if not _v_dict.has_key(property_name):
_v_property_name_list.append(property_name)
_v_dict[property_name] = 1
property_names = _v_property_name_list
# Relation field variable
editor = RelationEditor
default_validator_instance = Validator.StringValidatorInstance
def _generateItemUidList(self, field, key, relation_uid_list, REQUEST=None):
"""
Generate list of uid, item_key
"""
relation_item_id = field.generate_subfield_key(ITEM_ID,
key=key)
if isinstance(relation_uid_list, (list, tuple)):
try:
relation_uid_list = relation_uid_list[0]
except IndexError:
# No object was selected
return []
relation_field_id = field.generate_subfield_key("%s" % \
SUB_FIELD_ID, key=key)
value = self.default_validator_instance.validate(field,
relation_field_id, REQUEST)
return [(relation_item_id, relation_uid_list, value)]
def _generateFieldValueList(self, field, key,
value_list, current_value_list):
"""
Generate list of value, item_key
"""
if value_list == current_value_list:
return []
else:
relation_field_id = field.generate_subfield_key("%s" % \
SUB_FIELD_ID, key=key)
relation_item_key = field.generate_subfield_key(ITEM_ID, key=key)
return [(relation_field_id, value_list, relation_item_key)]
RelationStringFieldWidgetInstance = RelationStringFieldWidget()
RelationStringFieldValidatorInstance = RelationStringFieldValidator()
# Should RelationStringField be a subclass of MultiRelationStringField ?
class RelationStringField(ZMIField):
meta_type = "RelationStringField"
security = ClassSecurityInfo()
widget = RelationStringFieldWidgetInstance
validator = RelationStringFieldValidatorInstance
security.declareProtected('Access contents information', 'get_orig_value')
def get_orig_value(self, id):
"""
Get value for id; don't do any override calculation.
"""
if id == 'is_relation_field':
result = 1
elif id == 'is_multi_relation_field':
result = 0
else:
result = ZMIField.get_orig_value(self, id)
return result
security.declareProtected('Access contents information', 'get_value')
def get_value(self, id, REQUEST=None, **kw):
"""Get value for id.
Optionally pass keyword arguments that get passed to TALES
expression.
"""
# XXX FIXME Same code as MultiRelationStringField
if (id == 'items') and (REQUEST is not None):
# relation_item_list is not editable for the RelationField
result = REQUEST.get('relation_item_list', None)
else:
result = ZMIField.get_value(self, id, REQUEST=REQUEST, **kw)
return result
# Register get_value
from Products.ERP5Form.ProxyField import registerOriginalGetValueClassAndArgument
registerOriginalGetValueClassAndArgument(RelationStringField, 'items')