Alexey Boroda / new-acdc

  <?php
  
  use yii\db\Migration;
  
  class m170309_000003_alias extends Migration
  {
      public function safeUp()
      {
          $this->createTable(
              'alias',
              [
                  'id'=> $this->primaryKey(),
                  'value'=> $this->string()->notNull(),
              ]
          );
      }
  
      public function safeDown()
      {
          $this->dropTable('alias');
      }
  }