Merge branch 'random_bug_fixes'

registrasion/controllers/cart.py

@@ -1,6 +1,7 @@
 import collections
 import datetime
 import discount
+import functools
 import itertools
 
 from django.core.exceptions import ObjectDoesNotExist
@@ -19,6 +20,18 @@ from conditions import ConditionController
 from product import ProductController
 
 
+def _modifies_cart(func):
+    ''' Decorator that makes the wrapped function raise ValidationError
+    if we're doing something that could modify the cart. '''
+
+    @functools.wraps(func)
+    def inner(self, *a, **k):
+        self._fail_if_cart_is_not_active()
+        return func(self, *a, **k)
+
+    return inner
+
+
 class CartController(object):
 
     def __init__(self, cart):
@@ -42,6 +55,12 @@ class CartController(object):
             )
         return cls(existing)
 
+    def _fail_if_cart_is_not_active(self):
+        self.cart.refresh_from_db()
+        if self.cart.status != commerce.Cart.STATUS_ACTIVE:
+            raise ValidationError("You can only amend active carts.")
+
+    @_modifies_cart
     def extend_reservation(self):
         ''' Updates the cart's time last updated value, which is used to
         determine whether the cart has reserved the items and discounts it
@@ -64,6 +83,7 @@ class CartController(object):
         self.cart.time_last_updated = timezone.now()
         self.cart.reservation_duration = max(reservations)
 
+    @_modifies_cart
     def end_batch(self):
         ''' Performs operations that occur occur at the end of a batch of
         product changes/voucher applications etc.
@@ -76,6 +96,7 @@ class CartController(object):
         self.cart.revision += 1
         self.cart.save()
 
+    @_modifies_cart
     @transaction.atomic
     def set_quantities(self, product_quantities):
         ''' Sets the quantities on each of the products on each of the
@@ -176,6 +197,7 @@ class CartController(object):
         if errors:
             raise CartValidationError(errors)
 
+    @_modifies_cart
     def apply_voucher(self, voucher_code):
         ''' Applies the voucher with the given code to this cart. '''
 
@@ -229,6 +251,37 @@ class CartController(object):
         if errors:
             raise(ValidationError(ve))
 
+    def _test_required_categories(self):
+        ''' Makes sure that the owner of this cart has satisfied all of the
+        required category constraints in the inventory (be it in this cart
+        or others). '''
+
+        required = set(inventory.Category.objects.filter(required=True))
+
+        items = commerce.ProductItem.objects.filter(
+            product__category__required=True,
+            cart__user=self.cart.user,
+        ).exclude(
+            cart__status=commerce.Cart.STATUS_RELEASED,
+        )
+
+        for item in items:
+            print item
+            required.remove(item.product.category)
+
+        errors = []
+        for category in required:
+            msg = "You must have at least one item from: %s" % category
+            errors.append((None, msg))
+
+        if errors:
+            raise ValidationError(errors)
+
+    def _append_errors(self, errors, ve):
+        for error in ve.error_list:
+            print error.message
+            errors.append(error.message[1])
+
     def validate_cart(self):
         ''' Determines whether the status of the current cart is valid;
         this is normally called before generating or paying an invoice '''
@@ -248,8 +301,12 @@ class CartController(object):
         try:
             self._test_limits(product_quantities)
         except ValidationError as ve:
-            for error in ve.error_list:
-                errors.append(error.message[1])
+            self._append_errors(errors, ve)
+
+        try:
+            self._test_required_categories()
+        except ValidationError as ve:
+            self._append_errors(errors, ve)
 
         # Validate the discounts
         discount_items = commerce.DiscountItem.objects.filter(cart=cart)
@@ -272,6 +329,7 @@ class CartController(object):
         if errors:
             raise ValidationError(errors)
 
+    @_modifies_cart
     @transaction.atomic
     def fix_simple_errors(self):
         ''' This attempts to fix the easy errors raised by ValidationError.
@@ -304,6 +362,7 @@ class CartController(object):
 
         self.set_quantities(zeros)
 
+    @_modifies_cart
     @transaction.atomic
     def recalculate_discounts(self):
         ''' Calculates all of the discounts available for this product.

registrasion/forms.py

@@ -100,6 +100,7 @@ class _QuantityBoxProductsForm(_ProductsForm):
                 label=product.name,
                 help_text=help_text,
                 min_value=0,
+                max_value=500,  # Issue #19. We should figure out real limit.
             )
             cls.base_fields[cls.field_name(product)] = field
 
@@ -132,6 +133,9 @@ class _RadioButtonProductsForm(_ProductsForm):
             choice_text = "%s -- $%d" % (product.name, product.price)
             choices.append((product.id, choice_text))
 
+        if not category.required:
+            choices.append((0, "No selection"))
+
         cls.base_fields[cls.FIELD] = forms.TypedChoiceField(
             label=category.name,
             widget=forms.RadioSelect,
@@ -155,6 +159,8 @@ class _RadioButtonProductsForm(_ProductsForm):
         ours = self.cleaned_data[self.FIELD]
         choices = self.fields[self.FIELD].choices
         for choice_value, choice_display in choices:
+            if choice_value == 0:
+                continue
             yield (
                 choice_value,
                 1 if ours == choice_value else 0,

registrasion/migrations/0026_manualpayment_entered_by.py

@@ -0,0 +1,24 @@
+# -*- coding: utf-8 -*-
+# Generated by Django 1.9.2 on 2016-04-25 06:05
+from __future__ import unicode_literals
+
+from django.conf import settings
+from django.db import migrations, models
+import django.db.models.deletion
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        migrations.swappable_dependency(settings.AUTH_USER_MODEL),
+        ('registrasion', '0025_auto_20160425_0411'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='manualpayment',
+            name='entered_by',
+            field=models.ForeignKey(default=0, on_delete=django.db.models.deletion.CASCADE, to=settings.AUTH_USER_MODEL),
+            preserve_default=False,
+        ),
+    ]

registrasion/models/commerce.py

@@ -220,6 +220,8 @@ class ManualPayment(PaymentBase):
     class Meta:
         app_label = "registrasion"
 
+    entered_by = models.ForeignKey(User)
+
 
 class CreditNote(PaymentBase):
     ''' Credit notes represent money accounted for in the system that do not

registrasion/tests/controller_helpers.py

@@ -45,7 +45,7 @@ class TestingInvoiceController(InvoiceController):
             self.validate_allowed_to_pay()
 
         ''' Adds a payment '''
-        commerce.ManualPayment.objects.create(
+        commerce.PaymentBase.objects.create(
             invoice=self.invoice,
             reference=reference,
             amount=amount,

registrasion/tests/test_invoice.py

@@ -499,3 +499,37 @@ class InvoiceTestCase(RegistrationCartTestCase):
         invoice.pay("Paying into the void.", val, pre_validate=False)
         cn = self._credit_note_for_invoice(invoice.invoice)
         self.assertEqual(val, cn.credit_note.value)
+
+    def test_required_category_constraints_prevent_invoicing(self):
+        self.CAT_1.required = True
+        self.CAT_1.save()
+
+        cart = TestingCartController.for_user(self.USER_1)
+        cart.add_to_cart(self.PROD_3, 1)
+
+        # CAT_1 is required, we don't have CAT_1 yet
+        with self.assertRaises(ValidationError):
+            invoice = TestingInvoiceController.for_cart(cart.cart)
+
+        # Now that we have CAT_1, we can check out the cart
+        cart.add_to_cart(self.PROD_1, 1)
+        invoice = TestingInvoiceController.for_cart(cart.cart)
+
+        # Paying for the invoice should work fine
+        invoice.pay("Boop", invoice.invoice.value)
+
+        # We have an item in the first cart, so should be able to invoice
+        # for the second cart, even without CAT_1 in it.
+        cart = TestingCartController.for_user(self.USER_1)
+        cart.add_to_cart(self.PROD_3, 1)
+
+        invoice2 = TestingInvoiceController.for_cart(cart.cart)
+
+        # Void invoice2, and release the first cart
+        # now we don't have any CAT_1
+        invoice2.void()
+        invoice.refund()
+
+        # Now that we don't have CAT_1, we can't checkout this cart
+        with self.assertRaises(ValidationError):
+            invoice = TestingInvoiceController.for_cart(cart.cart)

registrasion/views.py

@@ -542,8 +542,14 @@ def _checkout_errors(request, errors):
 
 
 def invoice_access(request, access_code):
-    ''' Redirects to the first unpaid invoice for the attendee that matches
-    the given access code, if any.
+    ''' Redirects to an invoice for the attendee that matches the given access
+    code, if any.
+
+    If the attendee has multiple invoices, we use the following tie-break:
+
+    - If there's an unpaid invoice, show that, otherwise
+    - If there's a paid invoice, show the most recent one, otherwise
+    - Show the most recent invoid of all
 
     Arguments:
 
@@ -552,21 +558,29 @@ def invoice_access(request, access_code):
 
     Returns:
         redirect:
-            Redirect to the first unpaid invoice for that user.
+            Redirect to the selected invoice for that user.
 
     Raises:
-        Http404: If there is no such invoice.
+        Http404: If the user has no invoices.
     '''
 
     invoices = commerce.Invoice.objects.filter(
         user__attendee__access_code=access_code,
-        status=commerce.Invoice.STATUS_UNPAID,
-    ).order_by("issue_time")
+    ).order_by("-issue_time")
+
 
     if not invoices:
         raise Http404()
 
-    invoice = invoices[0]
+    unpaid = invoices.filter(status=commerce.Invoice.STATUS_UNPAID)
+    paid = invoices.filter(status=commerce.Invoice.STATUS_PAID)
+
+    if unpaid:
+        invoice = unpaid[0]  # (should only be 1 unpaid invoice?)
+    elif paid:
+        invoice = paid[0]  # Most recent paid invoice
+    else:
+        invoice = invoices[0]  # Most recent of any invoices
 
     return redirect("invoice", invoice.id, access_code)
 
@@ -655,6 +669,7 @@ def manual_payment(request, invoice_id):
 
     if request.POST and form.is_valid():
         form.instance.invoice = inv
+        form.instance.entered_by = request.user
         form.save()
         current_invoice.update_status()
         form = forms.ManualPaymentForm(prefix=FORM_PREFIX)