47 lines
2.3 KiB
TypeScript
47 lines
2.3 KiB
TypeScript
import { MigrationInterface, QueryRunner } from 'typeorm';
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export class PhaseF31FindingCatalogMerge1789844900000 implements MigrationInterface {
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name = 'PhaseF31FindingCatalogMerge1789844900000';
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public async up(queryRunner: QueryRunner): Promise<void> {
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await queryRunner.query(`
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CREATE TABLE finding_catalog_item_merges (
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id uuid PRIMARY KEY DEFAULT gen_random_uuid(),
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source_item_id uuid NOT NULL REFERENCES finding_catalog_items(id) ON DELETE RESTRICT,
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canonical_item_id uuid NOT NULL REFERENCES finding_catalog_items(id) ON DELETE RESTRICT,
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reason text NOT NULL,
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merged_at timestamptz NOT NULL DEFAULT CURRENT_TIMESTAMP,
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merged_by uuid NULL REFERENCES users(id) ON DELETE SET NULL,
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request_id varchar(128) NULL,
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source_snapshot jsonb NOT NULL,
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canonical_snapshot jsonb NOT NULL,
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CONSTRAINT chk_finding_catalog_item_merges_distinct CHECK (source_item_id <> canonical_item_id),
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CONSTRAINT uq_finding_catalog_item_merges_source UNIQUE (source_item_id)
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)
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`);
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await queryRunner.query(`CREATE INDEX idx_finding_catalog_item_merges_canonical ON finding_catalog_item_merges(canonical_item_id)`);
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await queryRunner.query(`CREATE INDEX idx_finding_catalog_item_merges_at ON finding_catalog_item_merges(merged_at)`);
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await queryRunner.query(`
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CREATE OR REPLACE FUNCTION protect_finding_catalog_item_merges_append_only()
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RETURNS trigger
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LANGUAGE plpgsql
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AS $$
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BEGIN
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RAISE EXCEPTION 'finding_catalog_item_merges es append-only; una fusión de catálogo no puede editarse ni borrarse';
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END;
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$$
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`);
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await queryRunner.query(`
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CREATE TRIGGER trg_finding_catalog_item_merges_append_only
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BEFORE UPDATE OR DELETE ON finding_catalog_item_merges
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FOR EACH ROW EXECUTE FUNCTION protect_finding_catalog_item_merges_append_only()
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`);
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}
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public async down(queryRunner: QueryRunner): Promise<void> {
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await queryRunner.query('DROP TRIGGER IF EXISTS trg_finding_catalog_item_merges_append_only ON finding_catalog_item_merges');
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await queryRunner.query('DROP FUNCTION IF EXISTS protect_finding_catalog_item_merges_append_only()');
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await queryRunner.query('DROP TABLE IF EXISTS finding_catalog_item_merges');
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}
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}
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