addColumn('blog_article', 'view', $this->integer()->defaultValue(0)); } /** * {@inheritdoc} */ public function safeDown() { $this->dropColumn('blog_article', 'view'); } /* // Use up()/down() to run migration code without a transaction. public function up() { } public function down() { echo "m180626_133815_alter_table_blog_article cannot be reverted.\n"; return false; } */ }