addSql('ALTER TABLE devis ADD customer_id INT DEFAULT NULL'); $this->addSql('ALTER TABLE devis ADD CONSTRAINT FK_8B27C52B9395C3F3 FOREIGN KEY (customer_id) REFERENCES customer (id) ON DELETE SET NULL NOT DEFERRABLE'); $this->addSql('CREATE INDEX IDX_8B27C52B9395C3F3 ON devis (customer_id)'); } public function down(Schema $schema): void { // this down() migration is auto-generated, please modify it to your needs $this->addSql('ALTER TABLE devis DROP CONSTRAINT FK_8B27C52B9395C3F3'); $this->addSql('DROP INDEX IDX_8B27C52B9395C3F3'); $this->addSql('ALTER TABLE devis DROP customer_id'); } }