brotherton-erpnext/erpnext/patches/v11_0/create_salary_structure_assignments.py

# Copyright (c) 2017, Frappe and Contributors
# License: GNU General Public License v3. See license.txt

from __future__ import unicode_literals
import frappe
from datetime import datetime

def execute():
	frappe.reload_doc("hr", "doctype", "salary_structure_assignment")
	for d in frappe.db.sql("""
		select sse.*, ss.company from `tabSalary Structure Employee` sse, `tabSalary Structure` ss
		where ss.name = sse.parent AND sse.employee in (select name from `tabEmployee` where ifNull(status, '') != 'Left')""", as_dict=1):
		s = frappe.new_doc("Salary Structure Assignment")
		s.employee = d.employee
		s.employee_name = d.employee_name
		s.salary_structure = d.parent
		s.from_date = d.from_date
		s.to_date = d.to_date if isinstance(d.to_date, datetime) else None
		s.base = d.base
		s.variable = d.variable
		s.company = d.company

		# to migrate the data of the old employees
		s.flags.old_employee = True
		s.save()

	frappe.db.sql("update `tabSalary Structure` set docstatus=1")