addSql('ALTER TABLE time_entry ADD client_ticket_id INT DEFAULT NULL'); $this->addSql('ALTER TABLE time_entry ADD CONSTRAINT FK_6E537C0C9B2097DD FOREIGN KEY (client_ticket_id) REFERENCES client_ticket (id) ON DELETE SET NULL NOT DEFERRABLE'); $this->addSql('CREATE INDEX IDX_6E537C0C9B2097DD ON time_entry (client_ticket_id)'); } public function down(Schema $schema): void { // this down() migration is auto-generated, please modify it to your needs $this->addSql('ALTER TABLE time_entry DROP CONSTRAINT FK_6E537C0C9B2097DD'); $this->addSql('DROP INDEX IDX_6E537C0C9B2097DD'); $this->addSql('ALTER TABLE time_entry DROP client_ticket_id'); } }