patch to create workflow for existing leave applications

erpnext/patches/v10_0/workflow_leave_application.py

@@ -0,0 +1,51 @@
+# Copyright (c) 2017, Frappe and Contributors
+# License: GNU General Public License v3. See license.txt
+
+from __future__ import unicode_literals
+import frappe
+
+def execute():
+	frappe.reload_doc("hr", "doctype", "leave_application")
+	frappe.reload_doc("workflow", "doctype", "workflow")
+
+	doc = frappe.get_doc({
+		'doctype': 'Workflow State',
+		'workflow_state_name': 'Open',
+		'style': 'Warning'
+		}).insert(ignore_permissions=True)
+
+	doc = frappe.get_doc({
+		'doctype': 'Workflow',
+		'workflow_name': 'Leave Approval',
+		'document_type': 'Leave Application',
+		'is_active': 1,
+		'workflow_state_field': 'workflow_state',
+		'states': [{
+			"state": 'Open',
+			"doc_status": 0,
+			"allow_edit": 'Employee'
+		}, {
+			"state": 'Approved',
+			"doc_status": 1,
+			"allow_edit": 'Leave Approver'
+		}, {
+			"state": 'Rejected',
+			"doc_status": 1,
+			"allow_edit": 'Leave Approver'
+		}],
+		'transitions': [{
+			"state": 'Open',
+			"action": 'Approve',
+			"next_state": 'Approved',
+			"allowed": 'Leave Approver'
+		},
+		{
+			"state": 'Open',
+			"action": 'Reject',
+			"next_state": 'Rejected',
+			"allowed": 'Leave Approver'
+		}]
+	}).insert(ignore_permissions=True)
+
+	frappe.db.sql("""update `tabLeave Application` set workflow_state = status""")
+	frappe.db.sql("""alter table `tabLeave Application` drop column status""")