addSql('ALTER TABLE post_follow DROP FOREIGN KEY FK_5816A015F8697D13'); $this->addSql('ALTER TABLE post_follow DROP FOREIGN KEY FK_5816A0154B89032C'); $this->addSql('ALTER TABLE post_follow ADD CONSTRAINT FK_5816A015F8697D13 FOREIGN KEY (comment_id) REFERENCES comment (id) ON DELETE CASCADE'); $this->addSql('ALTER TABLE post_follow ADD CONSTRAINT FK_5816A0154B89032C FOREIGN KEY (post_id) REFERENCES post (id) ON DELETE CASCADE'); } public function down(Schema $schema): void { // this down() migration is auto-generated, please modify it to your needs $this->addSql('ALTER TABLE post_follow DROP FOREIGN KEY FK_5816A0154B89032C'); $this->addSql('ALTER TABLE post_follow DROP FOREIGN KEY FK_5816A015F8697D13'); $this->addSql('ALTER TABLE post_follow ADD CONSTRAINT FK_5816A0154B89032C FOREIGN KEY (post_id) REFERENCES post (id)'); $this->addSql('ALTER TABLE post_follow ADD CONSTRAINT FK_5816A015F8697D13 FOREIGN KEY (comment_id) REFERENCES comment (id)'); } }