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fix: prevent data loose on track_types_id migration (#1949)

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Jonas L 2022-07-07 23:35:27 +02:00 • committed by GitHub
parent 64f2f8fc68
commit d323657047
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2 changed files with 22 additions and 11 deletions
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27
api/libretime_api/legacy/migrations/0035_3_0_0_alpha_13_9.py
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@ -10,15 +10,18 @@ ALTER TABLE "cc_files" ADD CONSTRAINT "cc_files_track_type_fkey"
FOREIGN KEY ("track_type_id")
REFERENCES "cc_track_types" ("id");
UPDATE "cc_files" previous SET "track_type_id" = (
UPDATE "cc_files" SET "track_type" = NULL
WHERE "track_type" = '';
UPDATE "cc_files" file SET "track_type_id" = (
SELECT "id" FROM "cc_track_types"
WHERE "code" = previous."track_type"
WHERE "code" = file."track_type"
)
WHERE "track_type" IS NOT NULL;
UPDATE "cc_pref" previous SET "valstr" = (
UPDATE "cc_pref" file SET "valstr" = (
SELECT "id" FROM "cc_track_types"
WHERE "code" = previous."valstr"
WHERE "code" = file."valstr"
)
WHERE "keystr" = 'tracktype_default'
AND "valstr" <> '';
@ -27,17 +30,23 @@ ALTER TABLE "cc_files" DROP COLUMN IF EXISTS "track_type";
"""
DOWN = """
ALTER TABLE "cc_files" DROP CONSTRAINT "cc_files_track_type_fkey";
ALTER TABLE "cc_files" DROP COLUMN IF EXISTS "track_type_id";
ALTER TABLE "cc_files" ADD COLUMN "track_type" VARCHAR(16);
UPDATE "cc_pref" previous SET "valstr" = (
UPDATE "cc_files" file SET "track_type" = (
SELECT "code" FROM "cc_track_types"
WHERE "id" = previous."valstr"::int
WHERE "id" = file."track_type_id"
)
WHERE "track_type_id" IS NOT NULL;
UPDATE "cc_pref" pref SET "valstr" = (
SELECT "code" FROM "cc_track_types"
WHERE "id" = pref."valstr"::int
)
WHERE "keystr" = 'tracktype_default'
AND "valstr" <> '';
ALTER TABLE "cc_files" DROP CONSTRAINT "cc_files_track_type_fkey";
ALTER TABLE "cc_files" DROP COLUMN IF EXISTS "track_type_id";
"""