92 lines
3.6 KiB
SQL
92 lines
3.6 KiB
SQL
-- Universal Apply Page: Make Project.roundId nullable and add programId FK
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-- This migration enables projects to be submitted to a program/edition without being assigned to a specific round
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-- NOTE: Written to be idempotent (safe to re-run if partially applied)
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-- Step 1: Add Program.slug for edition-wide apply URLs (nullable for existing programs)
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ALTER TABLE "Program" ADD COLUMN IF NOT EXISTS "slug" TEXT;
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CREATE UNIQUE INDEX IF NOT EXISTS "Program_slug_key" ON "Program"("slug");
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-- Step 2: Add programId column (nullable initially to handle existing data)
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ALTER TABLE "Project" ADD COLUMN IF NOT EXISTS "programId" TEXT;
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-- Step 3: Backfill programId from existing round relationships
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-- Only update rows where programId is still NULL (idempotent)
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UPDATE "Project" p
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SET "programId" = r."programId"
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FROM "Round" r
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WHERE p."roundId" = r.id
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AND p."programId" IS NULL;
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-- Step 4: Handle orphaned projects (no roundId = no way to derive programId)
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-- Assign them to the first available program, or delete them if no program exists
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DO $$
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DECLARE
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null_count INTEGER;
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fallback_program_id TEXT;
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BEGIN
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SELECT COUNT(*) INTO null_count FROM "Project" WHERE "programId" IS NULL;
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IF null_count > 0 THEN
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SELECT id INTO fallback_program_id FROM "Program" ORDER BY "createdAt" ASC LIMIT 1;
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IF fallback_program_id IS NOT NULL THEN
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UPDATE "Project" SET "programId" = fallback_program_id WHERE "programId" IS NULL;
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RAISE NOTICE 'Assigned % orphaned projects to fallback program %', null_count, fallback_program_id;
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ELSE
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DELETE FROM "Project" WHERE "programId" IS NULL;
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RAISE NOTICE 'Deleted % orphaned projects (no program exists to assign them to)', null_count;
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END IF;
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END IF;
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END $$;
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-- Step 5: Make programId required (NOT NULL constraint) - safe if already NOT NULL
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DO $$
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BEGIN
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IF EXISTS (
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SELECT 1 FROM information_schema.columns
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WHERE table_name = 'Project' AND column_name = 'programId' AND is_nullable = 'YES'
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) THEN
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ALTER TABLE "Project" ALTER COLUMN "programId" SET NOT NULL;
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END IF;
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END $$;
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-- Step 6: Add foreign key constraint for programId (skip if already exists)
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DO $$
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BEGIN
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IF NOT EXISTS (
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SELECT 1 FROM information_schema.table_constraints
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WHERE constraint_name = 'Project_programId_fkey' AND table_name = 'Project'
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) THEN
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ALTER TABLE "Project" ADD CONSTRAINT "Project_programId_fkey"
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FOREIGN KEY ("programId") REFERENCES "Program"("id") ON DELETE CASCADE;
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END IF;
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END $$;
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-- Step 7: Make roundId nullable (allow projects without round assignment)
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-- Safe: DROP NOT NULL is idempotent if already nullable
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DO $$
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BEGIN
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IF EXISTS (
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SELECT 1 FROM information_schema.columns
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WHERE table_name = 'Project' AND column_name = 'roundId' AND is_nullable = 'NO'
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) THEN
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ALTER TABLE "Project" ALTER COLUMN "roundId" DROP NOT NULL;
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END IF;
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END $$;
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-- Step 8: Update round FK to SET NULL on delete (instead of CASCADE)
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-- Projects should remain in the database if their round is deleted
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DO $$
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BEGIN
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IF EXISTS (
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SELECT 1 FROM information_schema.table_constraints
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WHERE constraint_name = 'Project_roundId_fkey' AND table_name = 'Project'
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) THEN
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ALTER TABLE "Project" DROP CONSTRAINT "Project_roundId_fkey";
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END IF;
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ALTER TABLE "Project" ADD CONSTRAINT "Project_roundId_fkey"
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FOREIGN KEY ("roundId") REFERENCES "Round"("id") ON DELETE SET NULL;
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END $$;
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-- Step 9: Add performance indexes
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CREATE INDEX IF NOT EXISTS "Project_programId_idx" ON "Project"("programId");
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CREATE INDEX IF NOT EXISTS "Project_programId_roundId_idx" ON "Project"("programId", "roundId");
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