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# -*- coding: utf-8 -*- |
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import datetime |
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from decimal import Decimal |
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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 reservable_pricing.models import PeriodPriceModifier |
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from reservations.utils import get_start_and_end_from_request, get_persons_from_request |
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from shoop.admin.base import AdminModule, MenuEntry |
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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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class ReservablePricingContext(PricingContext): |
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REQUIRED_VALUES = ("start_date", "end_date", "shop") |
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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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start_date, end_date = get_start_and_end_from_request(request) |
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persons = get_persons_from_request(request) |
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return self.pricing_context_class( |
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shop=request.shop, |
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start_date=start_date, |
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end_date=end_date, |
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persons=persons, |
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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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base_price = (shop_product.default_price_value or 0) * quantity |
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period_modifiers = self.get_period_modifiers(product_id, quantity, context.start_date, context.end_date) |
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per_person_modifiers = self.get_per_person_modifiers(product, context.persons) * quantity |
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total_price = base_price + period_modifiers + per_person_modifiers |
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price_info = PriceInfo( |
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price=shop.create_price(total_price), |
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base_price=shop.create_price(total_price), |
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quantity=quantity, |
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) |
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# Add some custom information to PriceInfo before returning it |
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price_info.period_modifiers = Decimal(period_modifiers) |
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price_info.per_person_modifiers = Decimal(per_person_modifiers) |
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return price_info |
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@staticmethod |
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def get_per_person_modifiers(product, persons): |
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"""Get added price for per person priced reservables.""" |
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if not product.type.identifier == "reservable" or not persons: |
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return 0 |
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reservable = product.reservable |
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if not reservable.pricing_per_person: |
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return 0 |
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difference = max(0, persons - reservable.pricing_per_person_included) |
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return difference * reservable.pricing_per_person_price |
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@staticmethod |
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def get_period_modifiers(product_id, quantity, start_date, end_date): |
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"""Get amount to add to base price from period modifiers.""" |
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modifiers_price = 0 |
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if start_date and end_date: |
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# Get any period modifiers that could affect this period |
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date_filters = Q(start_date__lte=start_date, end_date__gte=start_date) | \ |
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Q(start_date__lte=end_date, end_date__gte=end_date) |
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modifiers = PeriodPriceModifier.objects.filter( |
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modifier__gt=0, product=product_id |
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).filter(date_filters) |
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# Add to the total days * modifier value |
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for modifier in modifiers: |
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start_from = max(start_date, modifier.start_date) |
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# We add +1 day to end because end date is always the *next day*, ie the day guest leaves |
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end_on = min(end_date, modifier.end_date + datetime.timedelta(days=1)) |
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days = min((end_on - start_from).days, quantity) |
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modifiers_price += days * modifier.modifier |
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return modifiers_price |
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class PriceModifierModule(AdminModule): |
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name = _("Price modifiers") |
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category = name |
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def get_menu_entries(self, request): |
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return [ |
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MenuEntry( |
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text=_("Period price modifiers"), icon="fa fa-money", |
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url="reservable_pricing:modifiers.list", |
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category=self.category |
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), |
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## TODO: immlementation unfinished |
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# MenuEntry( |
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# text=_("Day of Week"), icon="fa fa-money", |
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# url="reservable_pricing:modifiers.list", |
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# category=self.category |
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# ), |
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] |
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jaywink /
kakaravaara3
This check looks for calls to members that are non-existent. These calls will fail.
The member could have been renamed or removed.