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# -*- coding: utf-8 -*- |
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import six |
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from django.db.models import Q |
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from django.utils.translation import ugettext_lazy as _ |
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from shoop.core.models import ShopProduct |
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from shoop.core.pricing import PriceInfo, PricingContext, PricingModule |
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from .models import ReservableProductPrice |
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class ReservablePricingContext(PricingContext): |
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REQUIRED_VALUES = ("customer_group_ids", "shop") |
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customer_group_ids = () |
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shop = None |
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class ReservablePricingModule(PricingModule): |
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identifier = "reservable_pricing" |
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name = _("Reservable Pricing") |
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pricing_context_class = ReservablePricingContext |
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def get_context_from_request(self, request): |
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customer = getattr(request, "customer", None) |
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if not customer or customer.is_anonymous: |
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customer_group_ids = [] |
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else: |
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customer_group_ids = sorted(customer.groups.all().values_list("id", flat=True)) |
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return self.pricing_context_class( |
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shop=request.shop, |
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customer_group_ids=customer_group_ids |
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) |
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def get_price_info(self, context, product, quantity=1): |
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shop = context.shop |
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if isinstance(product, six.integer_types): |
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product_id = product |
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shop_product = ShopProduct.objects.get(product_id=product_id, shop=shop) |
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else: |
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shop_product = product.get_shop_instance(shop) |
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product_id = product.pk |
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default_price = (shop_product.default_price_value or 0) |
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if context.customer_group_ids: |
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filter = Q( |
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price_value__gt=0, product=product_id, shop=shop, |
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group__in=context.customer_group_ids) |
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result = ( |
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ReservableProductPrice.objects.filter(filter) |
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.order_by("price_value")[:1] |
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.values_list("price_value", flat=True) |
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) |
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else: |
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result = None |
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if result: |
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price = result[0] |
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if default_price > 0: |
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price = min([default_price, price]) |
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else: |
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price = default_price |
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return PriceInfo( |
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price=shop.create_price(price * quantity), |
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base_price=shop.create_price(price * quantity), |
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quantity=quantity, |
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) |
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jaywink /
kakaravaara3
Loading history...
It is generally discouraged to redefine built-ins as this makes code very hard to read.