public function field(string $field) : self
    {
        $this->currentField = $field;
        $this->expr->field($field);

        return $this;
    }
public function field(string $field) : self
    {
        $this->currentField = $field;
        $this->expr->field($field);

        return $this;
    }
public function field ( string $ field ) : self { $ this -> currentField = $ field ; $ this -> expr -> field ( $ field ) ; return $ this ; }
Set the current field to operate on.
Set the current field to operate on .