framework/data/BaseDataProvider.php
public function init()
    {
        parent::init();
        if ($this->id === null) {
            if (self::$counter > 0) {
                $this->id = 'dp-' . self::$counter;
            }
            self::$counter++;
        }
    }
public function init()
    {
        parent::init();
        if ($this->id === null) {
            if (self::$counter > 0) {
                $this->id = 'dp-' . self::$counter;
            }
            self::$counter++;
        }
    }
public function init ( ) { parent :: init ( ) ; if ( $ this -> id === null ) { if ( self :: $ counter > 0 ) { $ this -> id = 'dp-' . self :: $ counter ; } self :: $ counter ++ ; } }
{@inheritdoc}
{