Add module purchase_auto_invoice_method.

purchase_auto_invoice_method/purchase.py

@@ -0,0 +1,48 @@
+# -*- encoding: utf-8 -*-
+##############################################################################
+#
+#    Purchase Auto Invoice Method module for OpenERP
+#    Copyright (C) 2013 Akretion (http://www.akretion.com)
+#    @author Alexis de Lattre <alexis.delattre@akretion.com>
+#
+#    This program is free software: you can redistribute it and/or modify
+#    it under the terms of the GNU Affero General Public License as
+#    published by the Free Software Foundation, either version 3 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 Affero General Public License for more details.
+#
+#    You should have received a copy of the GNU Affero General Public License
+#    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+#
+##############################################################################
+
+from openerp.osv import orm
+
+
+class purchase_order(orm.Model):
+    _inherit = 'purchase.order'
+
+    _defaults = {
+        'invoice_method': 'picking',
+    }
+
+    def wkf_confirm_order(self, cr, uid, ids, context=None):
+        invoice_method_order_po_ids = []
+        for po in self.browse(cr, uid, ids, context=context):
+            service_only = True
+            for line in po.order_line:
+                if line.product_id.type != 'service':
+                    service_only = False
+            if service_only:
+                invoice_method_order_po_ids.append(po.id)
+        if invoice_method_order_po_ids:
+            self.write(cr, uid, invoice_method_order_po_ids, {
+                'invoice_method': 'order',
+                }, context=context)
+        res = super(purchase_order, self).wkf_confirm_order(
+            cr, uid, ids, context=context)
+        return res