this new constraint permit to check that a line which have...

this new constraint permit to check that a line which have variation_categories contains cells. If not, error message is return showing the line with the pb.


git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@27999 20353a03-c40f-0410-a6d1-a30d3c3de9de

product/ERP5/Constraint/TradeModelLineCellConsistency.py

+##############################################################################
+#
+# Copyright (c) 2009 Nexedi SA and Contributors. All Rights Reserved.
+#          Fabien Morin <fabien@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
+translateString = lambda msg, **kw: msg # just to extract messages
+_MARKER = []
+
+
+class TradeModelLineCellConsistency(Constraint):
+  """
+  This constraint checks if the Trade Model Line should contain cells (if
+  variation categories are defined on it)
+  """
+
+  _message_id_list = [ 'message_cell_inexistance',]
+  message_cell_inexistance = translateString(
+      'Missing cells on line "${line}"')
+
+  def checkConsistency(self, document, fixit=0):
+    """
+      Implement here the consistency checker
+    """
+    error_list = []
+    base_id = self.constraint_definition['base_id']
+    for cell_coordinates in document.getCellKeyList(base_id=base_id):
+      if document.getCell(base_id=base_id, *cell_coordinates) is None:
+        error_list.append(self._generateError(document,
+          self._getMessage('message_cell_inexistance'),
+          mapping=dict(line=document.getTitle())))
+        return error_list
+
+    return error_list