Don't error on invalid unit price, etc.

sstreasury/models.py

@@ -1,5 +1,5 @@
 #    Society Self-Service
-#    Copyright © 2018–2020  Yingtong Li (RunasSudo)
+#    Copyright © 2018–2022  Yingtong Li (RunasSudo)
 #
 #    This program is free software: you can redistribute it and/or modify
 #    it under the terms of the GNU Affero General Public License as published by
@@ -100,15 +100,23 @@ class BudgetRevision(models.Model):
 	def get_revenue_total(self):
 		total = Decimal(0)
 		for item in self.revenue:
+			try:
 				total += Decimal(item['Unit price']) * Decimal(item['Units'])
 				if item['IWT'] and item['Unit price'] > 0:
 					total -= (Decimal(item['Unit price']) - (Decimal(item['Unit price']) - Decimal('0.8133')) / Decimal('1.01884')) * item['Units']
+			except TypeError:
+				# Invalid unit price, etc.
+				pass
 		return total
 	
 	def get_expense_total(self):
 		total = Decimal(0)
 		for item in self.expense:
+			try:
 				total += Decimal(item['Unit price']) * Decimal(item['Units'])
+			except TypeError:
+				# Invalid unit price, etc.
+				pass
 		if not self.expense_no_emergency_fund:
 			total *= Decimal('1.05')
 		return total
@@ -240,7 +248,11 @@ class ReimbursementClaim(models.Model):
 	def get_total(self):
 		total = Decimal(0)
 		for item in self.items:
+			try:
 				total += Decimal(item['Unit price']) * Decimal(item['Units'])
+			except TypeError:
+				# Invalid unit price, etc.
+				pass
 		return total
 	
 	def update_state(self, user, state):