addSql('CREATE TABLE category (id INT AUTO_INCREMENT, title VARCHAR(255), PRIMARY KEY (id))'); $this->addSql('CREATE TABLE post_tag (post_id INT, tag_id INT, PRIMARY KEY (post_id, tag_id))'); $this->addSql('CREATE INDEX IDX_5ACE3AF04B89032C ON post_tag (post_id)'); $this->addSql('CREATE INDEX IDX_5ACE3AF0BAD26311 ON post_tag (tag_id)'); $this->addSql('CREATE TABLE tag (id INT AUTO_INCREMENT, title VARCHAR(255), PRIMARY KEY (id))'); $this->addSql('ALTER TABLE post_tag ADD CONSTRAINT FK_5ACE3AF04B89032C FOREIGN KEY (post_id) REFERENCES post (id) ON DELETE CASCADE'); $this->addSql('ALTER TABLE post_tag ADD CONSTRAINT FK_5ACE3AF0BAD26311 FOREIGN KEY (tag_id) REFERENCES tag (id) ON DELETE CASCADE'); $this->addSql('ALTER TABLE post ADD category_id INT DEFAULT NULL'); $this->addSql('ALTER TABLE post ADD CONSTRAINT FK_5A8A6C8D12469DE2 FOREIGN KEY (category_id) REFERENCES category (id)'); $this->addSql('CREATE INDEX IDX_5A8A6C8D12469DE2 ON post (category_id)'); } public function down(Schema $schema): void { // this down() migration is auto-generated, please modify it to your needs $this->addSql('ALTER TABLE post_tag DROP CONSTRAINT FK_5ACE3AF04B89032C'); $this->addSql('ALTER TABLE post_tag DROP CONSTRAINT FK_5ACE3AF0BAD26311'); $this->addSql('DROP TABLE category'); $this->addSql('DROP TABLE post_tag'); $this->addSql('DROP TABLE tag'); $this->addSql('ALTER TABLE post DROP CONSTRAINT FK_5A8A6C8D12469DE2'); $this->addSql('DROP INDEX IDX_5A8A6C8D12469DE2'); $this->addSql('ALTER TABLE post DROP category_id'); } }