public function hasFilter(string $field): bool
    {
        if ($this->filter === null) {
            return false;
        }

        return $this->filter->hasFilter($field);
    }
public function hasFilter(string $field): bool
    {
        if ($this->filter === null) {
            return false;
        }

        return $this->filter->hasFilter($field);
    }
public function hasFilter ( string $ field ) : bool { if ( $ this -> filter === null ) { return false ; } return $ this -> filter -> hasFilter ( $ field ) ; }
Tell if this Jory contains a filter on the given field.

@param string $field
@return bool
Tell if this Jory contains a filter on the given field .