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>
Add clubmanager.base.unique_slugify(instance, value, scope=...): slugify a
source value, truncate to the field's max_length, and append -2/-3/... to
stay unique within a scope. ClubScopedModel gains a slug_source hook that
fills a blank slug (unique per club) on save.
Wire it up so every SlugField auto-populates from its natural source when
left blank (explicit values are always kept):
- shop.Product.slug <- name (per club)
- formbuilder.Form.slug <- title (per club)
- formbuilder.Field.key <- label (per form)
Club.slug already auto-populated; refactor it onto the shared helper.
Also fix shop.Product.slug's multi-tenancy bug: it was globally unique
(unique=True); make it unique per club like the others. Migrations added.
Full suite at 100% coverage.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
