profaller

'class' => 'yii\db\Connection',
'dsn' => 'mysql:host=localhost;dbname=back_import',
...
'enableSchemaCache' => false

$this->db->schema->refreshTableSchema('table_name')

'urlManager' => [
            'enablePrettyUrl' => true,
            'showScriptName' => false,
            'rules' => [
                'post/<code:([\w-]+)\.html>' => 'posts/detail',
            ],
        ],

public function actionDetail($code)
    {
...
    }