addSql('ALTER TABLE echeancier ADD advert_id INT DEFAULT NULL'); $this->addSql('ALTER TABLE echeancier ADD CONSTRAINT FK_4694F00CD07ECCB6 FOREIGN KEY (advert_id) REFERENCES advert (id) ON DELETE SET NULL NOT DEFERRABLE'); $this->addSql('CREATE INDEX IDX_4694F00CD07ECCB6 ON echeancier (advert_id)'); } public function down(Schema $schema): void { // this down() migration is auto-generated, please modify it to your needs $this->addSql('ALTER TABLE echeancier DROP CONSTRAINT FK_4694F00CD07ECCB6'); $this->addSql('DROP INDEX IDX_4694F00CD07ECCB6'); $this->addSql('ALTER TABLE echeancier DROP advert_id'); } }