Bernard Siebens
78fdcdf138
Build out the shop domain: Cart/CartItem (one open cart per user per club), Order/OrderLine, Discount/AppliedDiscount, Payment and Invoice. Order and Invoice allocate a per-club, per-year sequential number (ORD-<year>-<seq> / INV-<year>-<seq>) via shared helpers, retrying on collision with the (club, number) unique constraint as the source of truth. Fixes found while testing: - Invoice had no number generator, so a second invoice in a club collided on the empty string and could never be created. - AppliedDiscount printed a "%" suffix even for fixed-amount discounts, and had no (order, discount) uniqueness, so a discount could be applied twice. Every model validates its club-scoped FKs (product/team/discount/order/season/ staff_role) against the owning club, and Member FKs against club membership. Register all models in the admin, with FK dropdowns scoped to the owning club. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
141 lines
4.5 KiB
Python
141 lines
4.5 KiB
Python
from django.contrib import admin
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from .models import (
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AppliedDiscount,
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Cart,
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CartItem,
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Discount,
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Invoice,
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Order,
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OrderLine,
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Payment,
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Product,
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)
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class ClubScopedFKMixin:
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"""Restrict club-scoped FK dropdowns to the edited object's (or parent's) club.
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``scoped_fk_fields`` names FKs whose target is a club-scoped model. The club
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is taken from the object being edited (or, for inlines, the parent object).
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Enforcement still lives in each model's ``clean()``; this just keeps invalid
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options out of the dropdowns.
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"""
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scoped_fk_fields = ()
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def get_form(self, request, obj=None, **kwargs):
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request._club_obj = obj
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return super().get_form(request, obj, **kwargs)
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def get_formset(self, request, obj=None, **kwargs):
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request._club_obj = obj
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return super().get_formset(request, obj, **kwargs)
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def formfield_for_foreignkey(self, db_field, request, **kwargs):
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if db_field.name in self.scoped_fk_fields:
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club_id = getattr(getattr(request, "_club_obj", None), "club_id", None)
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if club_id is not None:
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kwargs["queryset"] = db_field.related_model._default_manager.filter(club_id=club_id)
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return super().formfield_for_foreignkey(db_field, request, **kwargs)
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@admin.register(Product)
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class ProductAdmin(ClubScopedFKMixin, admin.ModelAdmin):
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scoped_fk_fields = ("season", "staff_role")
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list_display = ["name", "product_type", "club", "is_active", "is_public"]
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list_filter = ["club", "product_type", "is_active", "is_public"]
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search_fields = ["name", "slug"]
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prepopulated_fields = {"slug": ["name"]}
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class CartItemInline(ClubScopedFKMixin, admin.TabularInline):
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model = CartItem
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scoped_fk_fields = ("product", "team")
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extra = 0
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raw_id_fields = ["beneficiary"]
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@admin.register(Cart)
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class CartAdmin(admin.ModelAdmin):
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list_display = ["user", "status", "club"]
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list_filter = ["club", "status"]
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search_fields = ["user__email"]
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raw_id_fields = ["user"]
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inlines = [CartItemInline]
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@admin.register(CartItem)
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class CartItemAdmin(admin.ModelAdmin):
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list_display = ["cart", "product", "quantity", "beneficiary"]
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search_fields = ["product__name"]
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raw_id_fields = ["cart", "product", "beneficiary", "team"]
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class OrderLineInline(ClubScopedFKMixin, admin.TabularInline):
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model = OrderLine
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scoped_fk_fields = ("product", "team")
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extra = 0
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raw_id_fields = ["beneficiary"]
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class AppliedDiscountInline(ClubScopedFKMixin, admin.TabularInline):
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model = AppliedDiscount
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scoped_fk_fields = ("discount",)
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extra = 0
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raw_id_fields = ["applied_by"]
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class PaymentInline(admin.TabularInline):
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model = Payment
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extra = 0
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@admin.register(Order)
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class OrderAdmin(admin.ModelAdmin):
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list_display = ["number", "purchaser", "status", "total", "club", "created"]
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list_filter = ["club", "status"]
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search_fields = ["number", "purchaser__first_name", "purchaser__last_name"]
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raw_id_fields = ["purchaser"]
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readonly_fields = ["number", "created", "modified"]
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inlines = [OrderLineInline, AppliedDiscountInline, PaymentInline]
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@admin.register(OrderLine)
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class OrderLineAdmin(admin.ModelAdmin):
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list_display = ["order", "product", "quantity", "line_total"]
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search_fields = ["product__name", "order__number"]
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raw_id_fields = ["order", "product", "beneficiary", "team"]
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@admin.register(Discount)
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class DiscountAdmin(admin.ModelAdmin):
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list_display = ["name", "discount_type", "discount_amount", "club", "is_active"]
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list_filter = ["club", "discount_type", "is_active"]
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search_fields = ["name", "slug"]
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prepopulated_fields = {"slug": ["name"]}
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@admin.register(AppliedDiscount)
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class AppliedDiscountAdmin(admin.ModelAdmin):
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list_display = ["order", "discount", "discount_type", "discount_amount"]
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search_fields = ["order__number", "discount__name"]
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raw_id_fields = ["order", "discount", "applied_by"]
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@admin.register(Payment)
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class PaymentAdmin(admin.ModelAdmin):
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list_display = ["order", "amount", "method", "status", "paid_at"]
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list_filter = ["method", "status"]
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search_fields = ["order__number", "reference"]
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raw_id_fields = ["order"]
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@admin.register(Invoice)
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class InvoiceAdmin(ClubScopedFKMixin, admin.ModelAdmin):
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scoped_fk_fields = ("order",)
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list_display = ["number", "order", "club", "issued_at", "due_date"]
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list_filter = ["club"]
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search_fields = ["number", "order__number"]
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readonly_fields = ["number", "issued_at"]
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