Add module account_invoice_del_attachment_cancel

Add .gitignore

account_invoice_del_attachment_cancel/account_invoice.py

@@ -0,0 +1,53 @@
+# -*- encoding: utf-8 -*-
+##############################################################################
+#
+#    Account Invoice Del Attachment Cancel module for OpenERP
+#    Copyright (C) 2015 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
+from openerp.tools.translate import _
+
+
+class AccountInvoice(orm.Model):
+    _inherit = 'account.invoice'
+
+    def action_cancel(self, cr, uid, ids, context=None):
+        res = super(AccountInvoice, self).action_cancel(
+            cr, uid, ids, context=context)
+        iao = self.pool['ir.attachment']
+        for invoice in self.browse(cr, uid, ids, context=context):
+            # search for attachments
+            if 'out' in invoice.type:
+                attach_ids = iao.search(
+                    cr, uid, [
+                        ('res_id', '=', invoice.id),
+                        ('res_model', '=', self._name),
+                        ('type', '=', 'binary'),
+                        ('datas_fname', '=like', 'INV%.pdf'),
+                        ], context=context)
+                if len(attach_ids) == 1:
+                    # delete attachment
+                    attach = iao.browse(
+                        cr, uid, attach_ids[0], context=context)
+                    attach_name = attach.name
+                    iao.unlink(cr, uid, attach_ids, context=context)
+                    self.message_post(
+                        cr, uid, invoice.id,
+                        _('Attachement %s has been deleted') % attach_name)
+        return res