fix: Buying and selling check in pricing rule

(cherry picked from commit f54838ab56)

erpnext/accounts/doctype/pricing_rule/utils.py

@@ -244,6 +244,11 @@ def get_other_conditions(conditions, values, args):
 			and ifnull(`tabPricing Rule`.valid_upto, '2500-12-31')"""
 		values["transaction_date"] = args.get("transaction_date")
 
+	if args.get("doctype") in ["Sales Order", "Delivery Note", "Sales Invoice"]:
+		conditions += """ and ifnull(`tabPricing Rule`.selling, 0) = 1"""
+	else:
+		conditions += """ and ifnull(`tabPricing Rule`.buying, 0) = 1"""
+
 	return conditions