add product sequence

app_product_sequence/hooks.py

@@ -0,0 +1,34 @@
+# -*- coding: utf-8 -*-
+
+# Created on 2017-11-05
+# author: 广州尚鹏，http://www.sunpop.cn
+# email: 300883@qq.com
+# resource of Sunpop
+# License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl).
+
+# Odoo在线中文用户手册（长期更新）
+# http://www.sunpop.cn/documentation/user/10.0/zh_CN/index.html
+
+# Odoo10离线中文用户手册下载
+# http://www.sunpop.cn/odoo10_user_manual_document_offline/
+# Odoo10离线开发手册下载-含python教程，jquery参考，Jinja2模板，PostgresSQL参考（odoo开发必备）
+# http://www.sunpop.cn/odoo10_developer_document_offline/
+# description:
+
+def pre_init_hook(cr):
+    """
+    Updates existing codes matching the default 'New' or
+    empty. Primarily this ensures installation does not
+    fail for demo data.
+    :param cr: database cursor
+    :return: void
+    """
+    cr.execute("UPDATE product_product "
+               "SET default_code = '!!DP!!' || id "
+               "WHERE default_code IS NULL OR default_code = 'New';")
+
+    cr.execute("UPDATE product_template "
+               "Set default_code = "
+               "(select default_code from product_product "
+               "where product_product.product_tmpl_id = product_template.id limit 1)"
+               "WHERE default_code IS NULL OR default_code = 'New';")