connection->getDatabasePlatform() instanceof MySQLPlatform) { $this->write('This migration only apply to MySQL'); return; } $this->addSql('ALTER TABLE ' . $this->getTable('tag') . ' CHANGE `label` `label` longtext CHARACTER SET utf8mb4 COLLATE utf8mb4_bin;'); $this->addSql('ALTER TABLE ' . $this->getTable('tag') . ' CHANGE `slug` `slug` VARCHAR(128) CHARACTER SET utf8mb4 COLLATE utf8mb4_bin;'); } public function down(Schema $schema): void { if (!$this->connection->getDatabasePlatform() instanceof MySQLPlatform) { $this->write('This migration only apply to MySQL'); return; } $this->addSql('ALTER TABLE ' . $this->getTable('tag') . ' CHANGE `slug` `slug` VARCHAR(128) CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;'); $this->addSql('ALTER TABLE ' . $this->getTable('tag') . ' CHANGE `label` `label` longtext CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;'); } }