addSql('CREATE TABLE file (id INT AUTO_INCREMENT NOT NULL, book_id INT NOT NULL, file_name VARCHAR(255) NOT NULL, file_size INT NOT NULL, extension VARCHAR(255) NOT NULL, type VARCHAR(255) NOT NULL, INDEX IDX_8C9F361016A2B381 (book_id), PRIMARY KEY(id)) DEFAULT CHARACTER SET utf8mb4 COLLATE `utf8mb4_unicode_ci` ENGINE = InnoDB'); $this->addSql('ALTER TABLE file ADD CONSTRAINT FK_8C9F361016A2B381 FOREIGN KEY (book_id) REFERENCES book (id)'); } public function down(Schema $schema): void { // this down() migration is auto-generated, please modify it to your needs $this->addSql('DROP TABLE file'); } }