brotherton-erpnext/erpnext/patches/v9_0/fix_subscription_next_date.py

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# Copyright (c) 2017, Frappe and Contributors
# License: GNU General Public License v3. See license.txt
from __future__ import unicode_literals
import frappe
from frappe.utils import getdate
from frappe.desk.doctype.auto_repeat.auto_repeat import get_next_schedule_date
def execute():
frappe.reload_doctype('Subscription')
doctypes = ('Purchase Order', 'Sales Order', 'Purchase Invoice', 'Sales Invoice')
for data in frappe.get_all('Subscription',
fields = ["name", "reference_doctype", "reference_document",
"start_date", "frequency", "repeat_on_day"],
filters = {'reference_doctype': ('in', doctypes), 'docstatus': 1}):
recurring_id = frappe.db.get_value(data.reference_doctype, data.reference_document, "recurring_id")
if recurring_id:
frappe.db.sql("update `tab{0}` set subscription=%s where recurring_id=%s"
.format(data.reference_doctype), (data.name, recurring_id))
date_field = 'transaction_date'
if data.reference_doctype in ['Sales Invoice', 'Purchase Invoice']:
date_field = 'posting_date'
start_date = frappe.db.get_value(data.reference_doctype, data.reference_document, date_field)
if start_date and getdate(start_date) != getdate(data.start_date):
last_ref_date = frappe.db.sql("""
select {0}
from `tab{1}`
where subscription=%s and docstatus < 2
order by creation desc
limit 1
""".format(date_field, data.reference_doctype), data.name)[0][0]
next_schedule_date = get_next_schedule_date(last_ref_date, data.frequency, data.repeat_on_day)
frappe.db.set_value("Subscription", data.name, {
"start_date": start_date,
"next_schedule_date": next_schedule_date
}, None)