---
title: Declare and enforce nfl_week_id arity in the NFL week selector
type: task
status: draft
description: >-
  The single-week definition declares no arity and ColumnParamNflWeekSelector reads none, so a
  betting-market column can hold eighteen static weeks and collapse to week one on read. Teach the
  selector single/enable_multi_on_split, amend the column-param UI contract spec, then declare the
  keys. Split out of the twin-key collapse.
base_uri: user:task/league/collapse-single-nfl-week-id-onto-nfl-week-id-arity.md
created_at: '2026-09-01T21:37:03.376Z'
entity_id: e3c28792-7c3a-4f32-8d3c-e9a9982eda89
owner_identity_uri: █████████████████████████
priority: Low
public_read: true
tags:
  - user:tag/league-xo-football.md
  - user:tag/software-task.md
updated_at: '2026-09-01T21:37:03.376Z'
visibility_analyzed_at: '2026-11-05T23:48:33.992Z'
---