plugin/exo/Entity/ItemType/PairQuestion.php
public function addRow(GridRow $row)
    {
        if (!$this->rows->contains($row)) {
            $this->rows->add($row);
            $row->setQuestion($this);
        }
    }
public function addRow(GridRow $row)
    {
        if (!$this->rows->contains($row)) {
            $this->rows->add($row);
            $row->setQuestion($this);
        }
    }
public function addRow ( GridRow $ row ) { if ( ! $ this -> rows -> contains ( $ row ) ) { $ this -> rows -> add ( $ row ) ; $ row -> setQuestion ( $ this ) ; } }
Add row.

@param GridRow $row
Add row .