make rounding invoices optional

auctions/forms.py

@@ -1536,6 +1536,7 @@ class Meta:
             "only_approved_sellers",
             "only_approved_bidders",
             "invoice_payment_instructions",
+            "invoice_rounding",
             "minimum_bid",
             "winning_bid_percent_to_club_for_club_members",
             "lot_entry_fee_for_club_members",
@@ -1755,6 +1756,10 @@ def __init__(self, *args, **kwargs):
                     "invoice_payment_instructions",
                     css_class="col-md-6",
                 ),
+                Div(
+                    "invoice_rounding",
+                    css_class="col-md-3",
+                ),
                 Div(
                     "use_categories",
                     css_class="col-md-3",

auctions/migrations/0150_auction_invoice_rounding_and_more.py

@@ -0,0 +1,25 @@
+# Generated by Django 5.1 on 2024-10-05 13:38
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+    dependencies = [
+        ("auctions", "0149_alter_userdata_email_me_when_people_comment_on_my_lots_and_more"),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name="auction",
+            name="invoice_rounding",
+            field=models.BooleanField(
+                default=True,
+                help_text="Round invoice totals to whole dollar amounts.  Check if you plan to accept cash payments.",
+            ),
+        ),
+        migrations.AlterField(
+            model_name="auction",
+            name="allow_bidding_on_lots",
+            field=models.BooleanField(default=True, verbose_name="Allow online bidding"),
+        ),
+    ]

auctions/models.py

@@ -596,7 +596,10 @@ class Auction(models.Model):
     email_users_when_invoices_ready = models.BooleanField(default=True)
     invoice_payment_instructions = models.CharField(max_length=255, blank=True, null=True, default="")
     invoice_payment_instructions.help_text = "Shown to the user on their invoice.  For example, 'You will receive a seperate PayPal invoice with payment instructions'"
-    # partial for #139
+    invoice_rounding = models.BooleanField(default=True)
+    invoice_rounding.help_text = (
+        "Round invoice totals to whole dollar amounts.  Check if you plan to accept cash payments."
+    )
     minimum_bid = models.PositiveIntegerField(default=2, validators=[MinValueValidator(1)])
     minimum_bid.help_text = "Lowest price any lot will be sold for"
     lot_entry_fee_for_club_members = models.PositiveIntegerField(
@@ -3127,6 +3130,8 @@ def user_should_be_paid(self):
     @property
     def rounded_net(self):
         """Always round in the customer's favor (against the club) to make sure that the club doesn't need to deal with change, only whole dollar amounts"""
+        if not self.auction.invoice_rounding:
+            return self.net
         rounded = round(self.net)
         if self.user_should_be_paid:
             if self.net > rounded:

auctions/tests.py

@@ -795,6 +795,16 @@ def test_lot_prices(self):
         lot = lots.filter(pk=self.lot.pk).first()
         assert lot.your_cut == 0
 
+    def test_invoice_rounding(self):
+        invoice, created = Invoice.objects.get_or_create(auctiontos_user=self.tos)
+        assert invoice.rounded_net == -4
+        self.auction.invoice_rounding = False
+        self.auction.winning_bid_percent_to_club = 12
+        self.auction.save()
+        invoice, created = Invoice.objects.get_or_create(auctiontos_user=self.tos)
+        assert invoice.net == invoice.rounded_net
+        assert round(invoice.rounded_net, 2) == -3.2
+
 
 class LotRefundDialogTests(TestCase):
     def setUp(self):