Payment Tool #2106

erpnext/accounts/utils.py

@@ -391,3 +391,42 @@ def get_stock_rbnb_difference(posting_date, company):
 
 	# Amount should be credited
 	return flt(stock_rbnb) + flt(sys_bal)
+
+def get_outstanding_invoices(amount_query, account):
+	all_outstanding_vouchers = []
+	outstanding_voucher_list = frappe.db.sql("""
+		select
+			voucher_no, voucher_type, posting_date,
+			ifnull(sum({amount_query}), 0) as invoice_amount
+		from
+			`tabGL Entry`
+		where
+			account = %s and {amount_query} > 0
+		group by voucher_type, voucher_no
+		""".format(amount_query = amount_query), account, as_dict = True)
+
+	for d in outstanding_voucher_list:
+		payment_amount = frappe.db.sql("""
+			select ifnull(sum(ifnull({amount_query}, 0)), 0)
+			from
+				`tabGL Entry`
+			where
+				account = %s and {amount_query} < 0
+				and against_voucher_type = %s and ifnull(against_voucher, '') = %s
+			""".format(**{
+			"amount_query": amount_query
+			}), (account, d.voucher_type, d.voucher_no))
+
+		payment_amount = -1*payment_amount[0][0] if payment_amount else 0
+
+		if d.invoice_amount > payment_amount:
+
+			all_outstanding_vouchers.append({
+				'voucher_no': d.voucher_no,
+				'voucher_type': d.voucher_type,
+				'posting_date': d.posting_date,
+				'invoice_amount': flt(d.invoice_amount),
+				'outstanding_amount': d.invoice_amount - payment_amount
+				})
+
+	return all_outstanding_vouchers