a43ad6194a
Backend: - Migration 007 deduplicates existing users by name (case-insensitive, keeping oldest) and adds a unique index on (event_id, LOWER(display_name)) - find_by_event_and_name is now case-insensitive (LOWER comparison) - join endpoint checks name availability before creating; returns 409 Conflict with code "conflict" when the name is taken Frontend (join page): - On 409, switches to a name-taken view showing an amber warning with name-choice tips, a PIN input that runs the recover flow inline, and an "Anderen Namen wählen" button that returns to the name input Test guide: added Steps 8 (rate-limit auto-retry) and 9 (name uniqueness) Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
16 lines
557 B
SQL
16 lines
557 B
SQL
-- Deduplicate users with the same name (case-insensitive) per event,
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-- keeping the oldest account so no real data is lost.
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DELETE FROM "user"
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WHERE id NOT IN (
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SELECT DISTINCT ON (event_id, LOWER(display_name)) id
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FROM "user"
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ORDER BY event_id, LOWER(display_name), created_at ASC
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);
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-- Drop the old non-unique index (replaced below)
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DROP INDEX IF EXISTS idx_user_event_name;
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-- Unique index enforces one account per name per event (case-insensitive)
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CREATE UNIQUE INDEX idx_user_event_name_ci
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ON "user" (event_id, LOWER(display_name));
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