from __future__ import unicode_literals
import frappe

def execute():
	students = frappe.get_list("Student", fields=["name", "father_name", "father_email_id", "mother_name", "mother_email_id"])
	for stud in students:
		if stud.father_name:
			make_guardian(stud.father_name, stud.name, stud.father_email_id)
		if stud.mother_name:
			make_guardian(stud.mother_name, stud.name, stud.mother_email_id)
		
def make_guardian(name, student, email=None):
	frappe.get_doc({
		'doctype': 'Guardian',
		'guardian_name': name,
		'email': email,
		'student': student
	}).insert()