A base class for a constraint to check that gap category is consistant with account_type category.

Intented to be overriden in erp5_accounting_l10n_* localisation templates.



git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@10214 20353a03-c40f-0410-a6d1-a30d3c3de9de

product/ERP5/Constraint/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.Constraint import Constraint
+from Products.ERP5Type.Message import Message
+N_ = lambda msg, **kw: Message('erp5_ui', msg, **kw)
+_MARKER = []
+
+class AccountTypeConstraint(Constraint):
+  """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.
+  """
+
+  def checkConsistency(self, obj, fixit=0):
+    """Implement here the consistency checker
+    """
+    errors = []
+    import pdb; pdb.set_trace()
+    if getattr(obj, 'getAccountType', _MARKER) is _MARKER:
+      errors.append(self._generateError(obj,
+                N_("Object doesn't have account_type category")))
+    else:
+      account_type_map = getattr(self, '_account_type_map', ())
+      if not account_type_map:
+        raise NotImplementedError(
+            "AccountTypeConstraint doesn't define an _account_type_map")
+      found = 0
+      for category, account_type_list in account_type_map:
+        if obj.isMemberOf(category):
+          if obj.getAccountType() not in account_type_list:
+            errors.append(self._generateError(obj,
+                N_("Object is member of ${category}, thus should have"
+                   " account_type in ${account_type_list}",
+                    mapping={'category': category,
+                             'account_type_list':
+                                ', '.join(account_type_list)})))
+            if fixit:
+              obj.setAccountType(account_type_list[0])
+          break
+    return errors
+