import frappe

def execute():
	frappe.reload_doc('buying', 'doctype', 'purchase_order')
	frappe.reload_doc('buying', 'doctype', 'supplier_quotation')
	frappe.reload_doc('selling', 'doctype', 'sales_order')
	frappe.reload_doc('selling', 'doctype', 'quotation')
	frappe.reload_doc('stock', 'doctype', 'delivery_note')
	frappe.reload_doc('stock', 'doctype', 'purchase_receipt')
	frappe.reload_doc('accounts', 'doctype', 'sales_invoice')
	frappe.reload_doc('accounts', 'doctype', 'purchase_invoice')

	doctypes = ["Sales Order", "Sales Invoice", "Delivery Note",\
		"Purchase Order", "Purchase Invoice", "Purchase Receipt", "Quotation", "Supplier Quotation"]

	for doctype in doctypes:
		frappe.db.sql('''
			UPDATE
				`tab%s` dt SET dt.total_qty =
			(
				SELECT SUM(dt_item.qty)
				FROM
					`tab%s Item` dt_item
				WHERE
					dt_item.parent=dt.name
			)
		''' % (doctype, doctype))