public function addFieldRound($field, $decimals = 0, $alias = null)
    {
        $this->addField(new Func('round', $field, new Expression((int)$decimals)), $alias); return $this;
    }
public function addFieldRound($field, $decimals = 0, $alias = null)
    {
        $this->addField(new Func('round', $field, new Expression((int)$decimals)), $alias); return $this;
    }
public function addFieldRound ( $ field , $ decimals = 0 , $ alias = null ) { $ this -> addField ( new Func ( 'round' , $ field , new Expression ( ( int ) $ decimals ) ) , $ alias ) ; return $ this ; }
Shortcut to add a price function

->addFieldRound('price')

@param string                $field
@param string                $alias
@return self The current query builder.
Shortcut to add a price function