Souke/console/migrations/m170201_074937_champs_code_point_vente.php

<?php

use yii\db\Migration;
use yii\db\Schema;

class m170201_074937_champs_code_point_vente extends Migration
{
    public function up()
    {
        $this->addColumn('point_vente', 'code', Schema::TYPE_STRING) ;
    }

    public function down()
    {
        $this->dropColumn('point_vente','code') ;
    }
}