docmost/apps/server/src/database/migrations/1699459398217-cascade-children-comments.ts

import { MigrationInterface, QueryRunner } from "typeorm";

export class CascadeChildrenComments1699459398217 implements MigrationInterface {
    name = 'CascadeChildrenComments1699459398217'

    public async up(queryRunner: QueryRunner): Promise<void> {
        await queryRunner.query(`ALTER TABLE "comments" DROP CONSTRAINT "FK_4875672591221a61ace66f2d4f9"`);
        await queryRunner.query(`ALTER TABLE "comments" ADD CONSTRAINT "FK_4875672591221a61ace66f2d4f9" FOREIGN KEY ("parentCommentId") REFERENCES "comments"("id") ON DELETE CASCADE ON UPDATE NO ACTION`);
    }

    public async down(queryRunner: QueryRunner): Promise<void> {
        await queryRunner.query(`ALTER TABLE "comments" DROP CONSTRAINT "FK_4875672591221a61ace66f2d4f9"`);
        await queryRunner.query(`ALTER TABLE "comments" ADD CONSTRAINT "FK_4875672591221a61ace66f2d4f9" FOREIGN KEY ("parentCommentId") REFERENCES "comments"("id") ON DELETE NO ACTION ON UPDATE NO ACTION`);
    }

}