Merge pull request #185 from StefanRijnhart/8.0-add-account_reset_chart_therp

[8.0] add account_reset_chart

account_reset_chart/README.rst

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+.. image:: https://img.shields.io/badge/licence-AGPL--3-blue.svg
+    :alt: License
+
+Account chart reset
+===================
+
+Adds a method to the company to remove its chart of accounts, including all
+related transactions, journals etc. By necessity, this process also removes
+the company's bank accounts as they are linked to the company's journals and
+the company's payment orders and payment modes if the payment module is
+installed.
+
+As a result, you can then reconfigure the company chart of account with the
+same or a different chart template.
+
+Usage
+=====
+
+To prevent major disasters when this module is installed, no interface is
+provided. Please run through xmlrpc, for instance using erppeek: ::
+
+    import erppeek
+    
+    host = 'localhost'
+    port = '8069'
+    admin_pw = 'admin'
+    dbname = 'openerp'
+    
+    client = erppeek.Client('http://%s:%s' % (host, port))
+    client.login('admin', admin_pw, dbname)
+    client.execute('res.company', 'reset_chart', 1)
+
+Known issues / Roadmap
+======================
+
+This should work with the standard accounting modules installed. All sorts of
+combinations with third party modules are imaginable that would require
+modifications or extensions of the current implementation.
+
+Sequences are not reset during the process.
+
+Credits
+=======
+
+Contributors
+------------
+
+* Stefan Rijnhart <stefan@therp.nl>
+
+Icon courtesy of Alan Klim (CC-BY-20) -
+https://www.flickr.com/photos/igraph/6469812927/
+
+Maintainer
+----------
+
+.. image:: http://odoo-community.org/logo.png
+   :alt: Odoo Community Association
+   :target: http://odoo-community.org
+
+This module is maintained by the OCA.
+
+OCA, or the Odoo Community Association, is a nonprofit organization whose
+mission is to support the collaborative development of Odoo features and
+promote its widespread use.
+
+To contribute to this module, please visit http://odoo-community.org.

account_reset_chart/__init__.py

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+from . import models

account_reset_chart/__openerp__.py

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+# -*- coding: utf-8 -*-
+##############################################################################
+#
+#    Odoo, an open source suite of business apps
+#    This module copyright (C) 2014-2015 Therp BV (<http://therp.nl>).
+#
+#    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": "Reset a chart of accounts",
+    "summary": ("Delete the accounting setup from an otherwise reusable "
+                "database"),
+    "version": "1.0",
+    "author": "Therp BV,Odoo Community Association (OCA)",
+    "category": 'Accounting & Finance',
+    "depends": [
+        'account',
+    ],
+    'license': 'AGPL-3'
+}

account_reset_chart/models/__init__.py

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+from . import res_company

account_reset_chart/models/res_company.py

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+# -*- coding: utf-8 -*-
+##############################################################################
+#
+#    Odoo, an open source suite of business apps
+#    This module copyright (C) 2014-2015 Therp BV (<http://therp.nl>).
+#
+#    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 import api, models
+import logging
+
+
+class Company(models.Model):
+    _inherit = 'res.company'
+
+    @api.one
+    def reset_chart(self):
+        """
+        This method removes the chart of account on the company record,
+        including all the related financial transactions.
+        """
+        logger = logging.getLogger('openerp.addons.account_reset_chart')
+
+        def unlink_from_company(model):
+            logger.info('Unlinking all records of model %s for company %s',
+                        model, self.name)
+            try:
+                obj = self.env[model]
+            except KeyError:
+                logger.info('Model %s not found', model)
+                return
+            records = obj.search([('company_id', '=', self.id)])
+            if records:  # account_account.unlink() breaks on empty id list
+                records.unlink()
+
+        self.env['account.journal'].search(
+            [('company_id', '=', self.id)]).write({'update_posted': True})
+        statements = self.env['account.bank.statement'].search(
+            [('company_id', '=', self.id)])
+        statements.button_cancel()
+        statements.unlink()
+
+        try:
+            voucher_obj = self.env['account.voucher']
+            logger.info('Unlinking vouchers.')
+            vouchers = voucher_obj.search(
+                [('company_id', '=', self.id),
+                 ('state', 'in', ('proforma', 'posted'))])
+            vouchers.cancel_voucher()
+            voucher_obj.search(
+                [('company_id', '=', self.id)]).unlink()
+        except KeyError:
+            pass
+
+        try:
+            if self.env['payment.order']:
+                logger.info('Unlinking payment orders.')
+                self._cr.execute(
+                    """
+                    DELETE FROM payment_line
+                    WHERE order_id IN (
+                        SELECT id FROM payment_order
+                        WHERE company_id = %s);
+                    """, (self.id,))
+                self._cr.execute(
+                    "DELETE FROM payment_order WHERE company_id = %s;",
+                    (self.id,))
+
+                unlink_from_company('payment.mode')
+        except KeyError:
+            pass
+
+        unlink_from_company('account.banking.account.settings')
+        unlink_from_company('res.partner.bank')
+
+        logger.info('Unlinking reconciliations')
+        rec_obj = self.env['account.move.reconcile']
+        rec_obj.search(
+            [('line_id.company_id', '=', self.id)]).unlink()
+
+        logger.info('Reset paid invoices\'s workflows')
+        paid_invoices = self.env['account.invoice'].search(
+            [('company_id', '=', self.id), ('state', '=', 'paid')])
+        if paid_invoices:
+            self._cr.execute(
+                """
+                UPDATE wkf_instance
+                SET state = 'active'
+                WHERE res_type = 'account_invoice'
+                AND res_id IN %s""", (tuple(paid_invoices.ids),))
+            self._cr.execute(
+                """
+                UPDATE wkf_workitem
+                SET act_id = (
+                    SELECT res_id FROM ir_model_data
+                    WHERE module = 'account'
+                        AND name = 'act_open')
+                WHERE inst_id IN (
+                    SELECT id FROM wkf_instance
+                    WHERE res_type = 'account_invoice'
+                    AND res_id IN %s)
+                """, (tuple(paid_invoices.ids),))
+            paid_invoices.signal_workflow('invoice_cancel')
+
+        inv_ids = self.env['account.invoice'].search(
+            [('company_id', '=', self.id)]).ids
+        if inv_ids:
+            logger.info('Unlinking invoices')
+            self.env['account.invoice.line'].search(
+                [('invoice_id', 'in', inv_ids)]).unlink()
+            self.env['account.invoice.tax'].search(
+                [('invoice_id', 'in', inv_ids)]).unlink()
+            self._cr.execute(
+                """
+                DELETE FROM account_invoice
+                WHERE id IN %s""", (tuple(inv_ids),))
+
+        logger.info('Unlinking moves')
+        moves = self.env['account.move'].search([('company_id', '=', self.id)])
+        if moves:
+            self._cr.execute(
+                """UPDATE account_move SET state = 'draft'
+                   WHERE id IN %s""", (tuple(moves.ids),))
+        moves.unlink()
+
+        unlink_from_company('account.fiscal.position')
+        unlink_from_company('account.tax')
+        unlink_from_company('account.tax.code')
+        unlink_from_company('account.journal')
+
+        logger.info('Unlink properties with account as values')
+        self._cr.execute(
+            """
+            DELETE FROM ir_property
+            WHERE value_reference LIKE 'account.account,%%'
+            AND company_id = %s""", (self.id,))
+        unlink_from_company('account.account')
+        return True