def test_form_populate_initial_data(rf, admin_user):
shop = get_default_shop()
supplier = get_default_supplier()
campaign = BasketCampaign(discount_percentage=0.1, shop=shop)
campaign.save()
# Test that correct initial value is returned for non-many-to-many field
product_amount_initial = 10
product_amount_condition = BasketTotalProductAmountCondition(product_count=product_amount_initial)
product_amount_condition.save()
campaign.conditions.add(product_amount_condition)
products_count_initial = 5
for i in range(products_count_initial):
create_product(printable_gibberish(), shop=shop, supplier=supplier, default_price="20")
products_initial = Product.objects.all()[:products_count_initial]
assert len(products_initial) == products_count_initial
# Test that correct initial value is returned for many-to-many field
products_in_basket_condition = ProductsInBasketCondition.objects.create()
products_in_basket_condition.values = products_initial
products_in_basket_condition.save()
campaign.conditions.add(products_in_basket_condition)
assert len(campaign.conditions.all()) == 2
request=apply_request_middleware(rf.get("/"), user=admin_user)
form = BasketCampaignForm(request=request, instance=campaign)
assert form.fields["basket_product_condition"].initial == product_amount_initial
assert set(form.fields["basket_products_condition"].initial) == set([p.pk for p in products_initial])
def get_new_lines(self, order_source, lines):
price_so_far = sum((x.price for x in lines), order_source.zero_price)
def get_discount_line(campaign, amount, price_so_far):
new_amount = min(amount, price_so_far)
price_so_far -= new_amount
return self._get_campaign_line(campaign, new_amount, order_source)
best_discount = None
best_discount_campaign = None
for campaign in BasketCampaign.get_matching(order_source, lines):
if campaign.discount_amount:
discount_amount = campaign.discount_amount
else:
discount_amount = order_source.total_price_of_products * campaign.discount_percentage
# if campaign has coupon, match it to order_source.codes
if campaign.coupon:
# campaign was found because discount code matched. This line is always added
yield get_discount_line(campaign, discount_amount,
price_so_far)
elif best_discount is None or discount_amount > best_discount:
best_discount = discount_amount
best_discount_campaign = campaign
if best_discount is not None:
yield get_discount_line(best_discount_campaign, best_discount,
price_so_far)
def get_new_lines(self, order_source, lines):
price_so_far = sum((x.price for x in lines), order_source.zero_price)
def get_discount_line(campaign, amount, price_so_far):
new_amount = min(amount, price_so_far)
price_so_far -= new_amount
return self._get_campaign_line(campaign, new_amount, order_source)
best_discount = None
best_discount_campaign = None
for campaign in BasketCampaign.get_matching(order_source, lines):
if campaign.discount_amount:
discount_amount = campaign.discount_amount
else:
discount_amount = order_source.total_price_of_products * campaign.discount_percentage
# if campaign has coupon, match it to order_source.codes
if campaign.coupon:
# campaign was found because discount code matched. This line is always added
yield get_discount_line(campaign, discount_amount, price_so_far)
elif best_discount is None or discount_amount > best_discount:
best_discount = discount_amount
best_discount_campaign = campaign
if best_discount is not None:
yield get_discount_line(best_discount_campaign, best_discount, price_so_far)
def get_new_lines(self, order_source, lines):
matching_campaigns = BasketCampaign.get_matching(order_source, lines)
for line in self._handle_total_discount_effects(matching_campaigns, order_source, lines):
yield line
for line in self._handle_line_effects(matching_campaigns, order_source, lines):
yield line
def get_new_lines(self, order_source, lines):
matching_campaigns = BasketCampaign.get_matching(order_source, lines)
for line in self._handle_total_discount_effects(
matching_campaigns, order_source, lines):
yield line
for line in self._handle_line_effects(matching_campaigns, order_source,
lines):
yield line