12acd68156
- Add datumOd and datumDo columns to kurzy table - Remove datumOd, datumDo, pocetUcastnikov from registracie table - Update schema, validators, and services accordingly - Certificate generation now uses course dates - Migration preserves existing data by copying most recent dates Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
22 lines
801 B
SQL
22 lines
801 B
SQL
-- Migration: Move dates from registracie to kurzy table
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-- Step 1: Add new columns to kurzy table
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ALTER TABLE kurzy ADD COLUMN IF NOT EXISTS datum_od DATE;
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ALTER TABLE kurzy ADD COLUMN IF NOT EXISTS datum_do DATE;
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-- Step 2: Migrate existing data - copy most recent registration dates to each course
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UPDATE kurzy k
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SET datum_od = r.datum_od, datum_do = r.datum_do
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FROM (
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SELECT DISTINCT ON (kurz_id) kurz_id, datum_od, datum_do
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FROM registracie
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WHERE datum_od IS NOT NULL OR datum_do IS NOT NULL
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ORDER BY kurz_id, created_at DESC
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) r
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WHERE k.id = r.kurz_id;
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-- Step 3: Drop columns from registracie table
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ALTER TABLE registracie DROP COLUMN IF EXISTS datum_od;
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ALTER TABLE registracie DROP COLUMN IF EXISTS datum_do;
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ALTER TABLE registracie DROP COLUMN IF EXISTS pocet_ucastnikov;
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