public function orOn($first, $operator = null, $second = null)
    {
        return $this->on($first, $operator, $second, 'or');
    }
public function orOn($first, $operator = null, $second = null)
    {
        return $this->on($first, $operator, $second, 'or');
    }
public function orOn ( $ first , $ operator = null , $ second = null ) { return $ this -> on ( $ first , $ operator , $ second , 'or' ) ; }
Add an "or on" clause to the join.

@param  \Closure|string  $first
@param  string|null  $operator
@param  string|null  $second
@return \Illuminate\Database\Query\JoinClause
Add an or on clause to the join .