Fix Empty Schedule — Generate Button for Existing Sessions

Canadian Elite Volleyball Academy — Development Update • March 30, 2026

Fix Empty Schedule — Generate Button for Existing Sessions

What & Why

When a league's sessions are created via the manage-days date setup flow, session records are created with dates and types but no player assignments are generated. The "Generate Day 1" button only appears when Day 1 doesn't exist yet — so once sessions are pre-created through date management, the coordinator has no way to trigger schedule generation. This results in completely empty schedules (game/court/side grid renders but no players assigned).

The Spring League 2026 is in this state right now — 60 registered players, 10 sessions, 0 assignments on any day.

Done looks like

• When a session exists but has zero assignments, a "Generate Schedule" button appears on the schedule page for that session
• Clicking it runs the sorting-algorithm schedule generator (generateDay1Schedule) and populates player assignments
• The button works for PLAY and SORTING session types (both use the same age-balanced rotation algorithm)
• For REGULAR sessions, it shows a different message or button that runs the tiered algorithm (only if prior days are locked)
• After generation, the schedule grid shows players in their assigned positions
• The existing "Generate Day 1" button logic still works for the case when no sessions exist yet
• Production fix: the coordinator on elitevolleyball.training can generate the Day 1 schedule for Spring League 2026

Out of scope

• Auto-generating schedules when manage-days creates sessions (that's a separate improvement)
• Changing the manage-days endpoint behavior
• Lock/unlock flow changes

Relevant files

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Canadian Elite Volleyball Academy
elitevolleyball.training