Make AccountType a new style constraint

git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@43442 20353a03-c40f-0410-a6d1-a30d3c3de9de

product/ERP5/Document/AccountTypeConstraint.py

+##############################################################################
+#
+# Copyright (c) 2006 Nexedi SARL and Contributors. All Rights Reserved.
+#          Jerome Perrin <jerome@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.ERP5Type.mixin.constraint import ConstraintMixin
+from Products.ERP5Type import Permissions, PropertySheet
+from Products.ERP5Type.Message import Message
+translateString = lambda msg: msg  # just to extract messages
+_MARKER = []
+
+class AccountTypeConstraint(ConstraintMixin):
+  """Account type constraint is a base class to check that account_type
+  category is consistent with the gap category.
+  This is an abstract class, subclasses have to define a mapping as a class
+  attribute, like this one:
+  
+  _account_type_map = (
+    ('gap/fr/pcg/4/40', ('liability/payable',),
+    ('gap/fr/pcg/4', ('asset/receivable', 'liability/payable'),
+  )
+
+  In this example, the constraint will check that if 'gap/fr/pcg/4' is used, we
+  must be member of 'account_type/asset/receivable' or
+  'account_type/liability/payable'.
+  The order is important, ie. that if the account is member of
+  'gap/fr/pcg/4/40', it must be member of 'account_type/liability/payable'.
+
+  This constraints supports fixing consistency.
+  """
+  
+  property_sheets = ConstraintMixin.property_sheets + \
+                    (PropertySheet.AccountTypeConstraint,)
+
+  def _checkConsistency(self, obj, fixit=0):
+    """Implement here the consistency checker
+    """
+    error_list = []
+    errors = []
+    if getattr(obj, 'getAccountType', _MARKER) is _MARKER:
+      errors.append(self._generateError(
+        obj,
+        translateString("Account does not have account_type category")))
+    else:
+      constraint_line_list = self.objectValues(sort_on='int_index')
+      if len(constraint_line_list) == 0:
+        raise NotImplementedError(
+           "AccountTypeConstraint does not define an account type mapping lines")
+      import pdb; pdb.set_trace()
+      for constraint_line in constraint_line_list:
+        gap = constraint_line.getGap()
+        account_type_list = contraint_line.getAccountTypeList()
+        if obj.isMemberOf(category):
+          if obj.getAccountType() not in account_type_list:
+            error_list.append(self._generateError(obj,
+                self._getMessage('message_inconsistent_account_type'),
+                # XXX we should probably print translated logical path of
+                # categories instead of category path.
+                    mapping=dict(category=category,
+                                 account_type_list=
+                                    ', '.join(account_type_list))))
+            if fixit:
+              obj.setAccountType(account_type_list[0])
+          break
+    return error_list
+