brotherton-erpnext/erpnext/patches/v4_2/repost_reserved_qty.py

# Copyright (c) 2013, Web Notes Technologies Pvt. Ltd. and Contributors
# License: GNU General Public License v3. See license.txt

from __future__ import unicode_literals
import frappe
from erpnext.stock.stock_balance import update_bin_qty, get_reserved_qty

def execute():
	for doctype in ("Sales Order Item", "Bin"):
		frappe.reload_doctype(doctype)

	repost_for = frappe.db.sql("""
		select
			distinct item_code, warehouse
		from
			(
				(
					select distinct item_code, warehouse
								from `tabSales Order Item` where docstatus=1
				) UNION (
					select distinct item_code, warehouse
					from `tabPacked Item` where docstatus=1 and parenttype='Sales Order'
				)
			) so_item
		where
			exists(select name from tabItem where name=so_item.item_code and ifnull(is_stock_item, 0)=1)
	""")

	for item_code, warehouse in repost_for:
			update_bin_qty(item_code, warehouse, {
				"reserved_qty": get_reserved_qty(item_code, warehouse)
			})

	frappe.db.sql("""delete from tabBin
		where exists(
			select name from tabItem where name=tabBin.item_code and ifnull(is_stock_item, 0) = 0
		)
	""")