fix: Payment Terms not fetched in Purchase Invoice from Purchase Receipt

erpnext/accounts/party.py

@@ -59,7 +59,7 @@ def _get_party_details(party=None, account=None, party_type="Customer", company=
 			billing_address=party_address, shipping_address=shipping_address)
 
 	if fetch_payment_terms_template:
-		party_details["payment_terms_template"] = get_pyt_term_template(party.name, party_type, company)
+		party_details["payment_terms_template"] = get_payment_terms_template(party.name, party_type, company)
 
 	if not party_details.get("currency"):
 		party_details["currency"] = currency
@@ -315,7 +315,7 @@ def get_due_date(posting_date, party_type, party, company=None, bill_date=None):
 	due_date = None
 	if (bill_date or posting_date) and party:
 		due_date = bill_date or posting_date
-		template_name = get_pyt_term_template(party, party_type, company)
+		template_name = get_payment_terms_template(party, party_type, company)
 
 		if template_name:
 			due_date = get_due_date_from_template(template_name, posting_date, bill_date).strftime("%Y-%m-%d")
@@ -422,7 +422,7 @@ def set_taxes(party, party_type, posting_date, company, customer_group=None, sup
 
 
 @frappe.whitelist()
-def get_pyt_term_template(party_name, party_type, company=None):
+def get_payment_terms_template(party_name, party_type, company=None):
 	if party_type not in ("Customer", "Supplier"):
 		return
 	template = None

erpnext/stock/doctype/purchase_receipt/purchase_receipt.py

@@ -533,6 +533,8 @@ def update_billed_amount_based_on_po(po_detail, update_modified=True):
 @frappe.whitelist()
 def make_purchase_invoice(source_name, target_doc=None):
 	from frappe.model.mapper import get_mapped_doc
+	from erpnext.accounts.party import get_payment_terms_template
+
 	doc = frappe.get_doc('Purchase Receipt', source_name)
 	returned_qty_map = get_returned_qty_map(source_name)
 	invoiced_qty_map = get_invoiced_qty_map(source_name)
@@ -543,6 +545,7 @@ def set_missing_values(source, target):
 
 		doc = frappe.get_doc(target)
 		doc.ignore_pricing_rule = 1
+		doc.payment_terms_template = get_payment_terms_template(source.supplier, "Supplier", source.company)
 		doc.run_method("onload")
 		doc.run_method("set_missing_values")
 		doc.run_method("calculate_taxes_and_totals")

erpnext/stock/doctype/purchase_receipt/test_purchase_receipt.py

@@ -42,6 +42,30 @@ def test_reverse_purchase_receipt_sle(self):
 		frappe.db.set_value('UOM', '_Test UOM', 'must_be_whole_number', 1)
 
 	def test_make_purchase_invoice(self):
+		if not frappe.db.exists('Payment Terms Template', '_Test Payment Terms Template For Purchase Invoice'):
+			frappe.get_doc({
+				'doctype': 'Payment Terms Template',
+				'template_name': '_Test Payment Terms Template For Purchase Invoice',
+				'allocate_payment_based_on_payment_terms': 1,
+				'terms': [
+					{
+						'doctype': 'Payment Terms Template Detail',
+						'invoice_portion': 50.00,
+						'credit_days_based_on': 'Day(s) after invoice date',
+						'credit_days': 00
+					},
+					{
+						'doctype': 'Payment Terms Template Detail',
+						'invoice_portion': 50.00,
+						'credit_days_based_on': 'Day(s) after invoice date',
+						'credit_days': 30
+					}]
+			}).insert()
+
+		template = frappe.db.get_value('Payment Terms Template', '_Test Payment Terms Template For Purchase Invoice')
+		old_template_in_supplier = frappe.db.get_value("Supplier", "_Test Supplier", "payment_terms")
+		frappe.db.set_value("Supplier", "_Test Supplier", "payment_terms", template)
+
 		pr = make_purchase_receipt(do_not_save=True)
 		self.assertRaises(frappe.ValidationError, make_purchase_invoice, pr.name)
 		pr.submit()
@@ -51,10 +75,23 @@ def test_make_purchase_invoice(self):
 		self.assertEqual(pi.doctype, "Purchase Invoice")
 		self.assertEqual(len(pi.get("items")), len(pr.get("items")))
 
-		# modify rate
+		# test maintaining same rate throughout purchade cycle
 		pi.get("items")[0].rate = 200
 		self.assertRaises(frappe.ValidationError, frappe.get_doc(pi).submit)
 
+		# test if payment terms are fetched and set in PI
+		self.assertEqual(pi.payment_terms_template, template)
+		self.assertEqual(pi.payment_schedule[0].payment_amount, flt(pi.grand_total)/2)
+		self.assertEqual(pi.payment_schedule[0].invoice_portion, 50)
+		self.assertEqual(pi.payment_schedule[1].payment_amount, flt(pi.grand_total)/2)
+		self.assertEqual(pi.payment_schedule[1].invoice_portion, 50)
+
+		# teardown
+		pi.delete() # draft PI
+		pr.cancel()
+		frappe.db.set_value("Supplier", "_Test Supplier", "payment_terms", old_template_in_supplier)
+		frappe.get_doc('Payment Terms Template', '_Test Payment Terms Template For Purchase Invoice').delete()
+
 	def test_purchase_receipt_no_gl_entry(self):
 		company = frappe.db.get_value('Warehouse', '_Test Warehouse - _TC', 'company')