Add module account_invoice_del_attachment_cancel

Add .gitignore

.gitignore

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+# Byte-compiled / optimized / DLL files
+__pycache__/
+*.py[cod]
+
+# C extensions
+*.so
+
+# Distribution / packaging
+.Python
+env/
+bin/
+build/
+develop-eggs/
+dist/
+eggs/
+lib/
+lib64/
+parts/
+sdist/
+var/
+*.egg-info/
+.installed.cfg
+*.egg
+
+# Installer logs
+pip-log.txt
+pip-delete-this-directory.txt
+
+# Unit test / coverage reports
+htmlcov/
+.tox/
+.coverage
+.cache
+nosetests.xml
+coverage.xml
+
+# Translations
+*.mo
+
+# Pycharm
+.idea
+
+# Mr Developer
+.mr.developer.cfg
+.project
+.pydevproject
+
+# Rope
+.ropeproject
+
+# Sphinx documentation
+docs/_build/
+
+# Backup files
+*~
+*.swp

account_invoice_del_attachment_cancel/__init__.py

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+# -*- 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 . import account_invoice

account_invoice_del_attachment_cancel/__openerp__.py

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+# -*- 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/>.
+#
+##############################################################################
+
+
+{
+    'name': 'Account Invoice Delete Attachment on Cancel',
+    'version': '0.1',
+    'category': 'Accounting & Finance',
+    'license': 'AGPL-3',
+    'summary': 'Delete the attachment on the invoice when it is cancelled',
+    'description': """
+Account Invoice Delete Attachment on Cancel
+===========================================
+
+When an invoice is validated, on the first generation of the invoice report, a copy of the report is stored as attachment on the invoice. After that, every time you a user asks for the Invoice report, it will be taken from the attachment.
+
+With this module, when an invoice is cancelled, the attachment is deleted.
+
+Please contact Alexis de Lattre from Akretion <alexis.delattre@akretion.com> for any help or question about this module.
+    """,
+    'author': 'Akretion',
+    'website': 'http://www.akretion.com',
+    'depends': ['account'],
+    'data': [],
+    'installable': True,
+}

account_invoice_del_attachment_cancel/account_invoice.py

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+# -*- 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