fix: added a single value to fetch payment terms

erpnext/accounts/doctype/fetch_payment_terms/fetch_payment_terms.js

@@ -0,0 +1,8 @@
+// Copyright (c) 2019, Frappe Technologies Pvt. Ltd. and contributors
+// For license information, please see license.txt
+
+frappe.ui.form.on('Fetch Payment Terms', {
+	refresh: function(frm) {
+
+	}
+});

erpnext/accounts/doctype/fetch_payment_terms/fetch_payment_terms.json

@@ -0,0 +1,96 @@
+{
+ "allow_copy": 0,
+ "allow_events_in_timeline": 0,
+ "allow_guest_to_view": 0,
+ "allow_import": 0,
+ "allow_rename": 0,
+ "beta": 0,
+ "creation": "2019-04-17 11:00:32.823034",
+ "custom": 0,
+ "docstatus": 0,
+ "doctype": "DocType",
+ "document_type": "",
+ "editable_grid": 0,
+ "engine": "InnoDB",
+ "fields": [
+  {
+   "allow_bulk_edit": 0,
+   "allow_in_quick_entry": 0,
+   "allow_on_submit": 0,
+   "bold": 0,
+   "collapsible": 0,
+   "columns": 0,
+   "fetch_if_empty": 0,
+   "fieldname": "fetch_payment_terms",
+   "fieldtype": "Check",
+   "hidden": 0,
+   "ignore_user_permissions": 0,
+   "ignore_xss_filter": 0,
+   "in_filter": 0,
+   "in_global_search": 0,
+   "in_list_view": 0,
+   "in_standard_filter": 0,
+   "label": "Always Fetch Payment Terms",
+   "length": 0,
+   "no_copy": 0,
+   "permlevel": 0,
+   "precision": "",
+   "print_hide": 0,
+   "print_hide_if_no_value": 0,
+   "read_only": 0,
+   "remember_last_selected_value": 0,
+   "report_hide": 0,
+   "reqd": 0,
+   "search_index": 0,
+   "set_only_once": 0,
+   "translatable": 0,
+   "unique": 0
+  }
+ ],
+ "has_web_view": 0,
+ "hide_heading": 0,
+ "hide_toolbar": 0,
+ "idx": 0,
+ "image_view": 0,
+ "in_create": 0,
+ "is_submittable": 0,
+ "issingle": 1,
+ "istable": 0,
+ "max_attachments": 0,
+ "modified": "2019-04-17 11:06:02.216048",
+ "modified_by": "Administrator",
+ "module": "Accounts",
+ "name": "Fetch Payment Terms",
+ "name_case": "",
+ "owner": "Administrator",
+ "permissions": [
+  {
+   "amend": 0,
+   "cancel": 0,
+   "create": 1,
+   "delete": 1,
+   "email": 1,
+   "export": 0,
+   "if_owner": 0,
+   "import": 0,
+   "permlevel": 0,
+   "print": 1,
+   "read": 1,
+   "report": 0,
+   "role": "System Manager",
+   "set_user_permissions": 0,
+   "share": 1,
+   "submit": 0,
+   "write": 1
+  }
+ ],
+ "quick_entry": 1,
+ "read_only": 0,
+ "read_only_onload": 0,
+ "show_name_in_global_search": 0,
+ "sort_field": "modified",
+ "sort_order": "ASC",
+ "track_changes": 1,
+ "track_seen": 0,
+ "track_views": 0
+}

erpnext/accounts/doctype/fetch_payment_terms/fetch_payment_terms.py

@@ -0,0 +1,10 @@
+# -*- coding: utf-8 -*-
+# Copyright (c) 2019, Frappe Technologies Pvt. Ltd. and contributors
+# For license information, please see license.txt
+
+from __future__ import unicode_literals
+import frappe
+from frappe.model.document import Document
+
+class FetchPaymentTerms(Document):
+	pass

erpnext/accounts/doctype/fetch_payment_terms/test_fetch_payment_terms.js

@@ -0,0 +1,23 @@
+/* eslint-disable */
+// rename this file from _test_[name] to test_[name] to activate
+// and remove above this line
+
+QUnit.test("test: Fetch Payment Terms", function (assert) {
+	let done = assert.async();
+
+	// number of asserts
+	assert.expect(1);
+
+	frappe.run_serially([
+		// insert a new Fetch Payment Terms
+		() => frappe.tests.make('Fetch Payment Terms', [
+			// values to be set
+			{key: 'value'}
+		]),
+		() => {
+			assert.equal(cur_frm.doc.key, 'value');
+		},
+		() => done()
+	]);
+
+});

erpnext/accounts/doctype/fetch_payment_terms/test_fetch_payment_terms.py

@@ -0,0 +1,10 @@
+# -*- coding: utf-8 -*-
+# Copyright (c) 2019, Frappe Technologies Pvt. Ltd. and Contributors
+# See license.txt
+from __future__ import unicode_literals
+
+import frappe
+import unittest
+
+class TestFetchPaymentTerms(unittest.TestCase):
+	pass

erpnext/buying/doctype/purchase_order/purchase_order.py

@@ -393,7 +393,7 @@ def make_purchase_invoice(source_name, target_doc=None):
 			or item.get("buying_cost_center")
 			or item_group.get("buying_cost_center"))
 
-	doc = get_mapped_doc("Purchase Order", source_name,	{
+	fields = {
 		"Purchase Order": {
 			"doctype": "Purchase Invoice",
 			"field_map": {
@@ -416,12 +416,16 @@ def make_purchase_invoice(source_name, target_doc=None):
 		"Purchase Taxes and Charges": {
 			"doctype": "Purchase Taxes and Charges",
 			"add_if_empty": True
-		},
-		"Payment Schedule": {
-			"doctype": "Payment Schedule",
-			"add_if_empty": True
 		}
-	}, target_doc, postprocess)
+	}
+
+	if frappe.get_single("Fetch Payment Terms").fetch_payment_terms == 1:
+		fields["Payment Schedule"] = {
+										"doctype": "Payment Schedule",
+										"add_if_empty": True
+									}
+
+	doc = get_mapped_doc("Purchase Order", source_name,	fields, target_doc, postprocess)
 
 	return doc
 

erpnext/config/accounts.py

@@ -297,7 +297,13 @@ def get_data():
 					"name": "C-Form",
 					"description": _("C-Form records"),
 					"country": "India"
-				}
+				},
+				{
+					"type": "doctype",
+					"name": "Fetch Payment Terms",
+					"label": _("Fetch Payment Terms"),
+					"description": _("Fetch Payment Terms")
+				},
 			]
 		},
 		{