addColumn('image', 'mime', Schema::TYPE_STRING . ' NOT NULL'); } /** * {@inheritdoc} */ public function safeDown() { $this->dropColumn('table', 'mime'); } /* // Use up()/down() to run migration code without a transaction. public function up() { } public function down() { echo "m240820_024046_add_mime_to_image cannot be reverted.\n"; return false; } */ }