addSql('ALTER TABLE accommodation_booking DROP COLUMN children_count'); $this->addSql('ALTER TABLE accommodation_booking RENAME COLUMN adolescents_count TO children_count'); } public function down(Schema $schema): void { $this->addSql('ALTER TABLE accommodation_booking RENAME COLUMN children_count TO adolescents_count'); $this->addSql('ALTER TABLE accommodation_booking ADD COLUMN children_count INT NOT NULL DEFAULT 0'); } }