src/Money/DataMapper/Data/Money/Abstracts/TransactionAbstract.php
public function setComment($comment)
    {
        $comment = ($comment === null ? $comment : (string) $comment);

        if ($this->exists() && $this->comment !== $comment) {
            $this->updated['comment'] = true;
        }

        $this->comment = $comment;

        return $this;
    }
public function setComment($comment)
    {
        $comment = ($comment === null ? $comment : (string) $comment);

        if ($this->exists() && $this->comment !== $comment) {
            $this->updated['comment'] = true;
        }

        $this->comment = $comment;

        return $this;
    }
Set value for field "transaction_comment"

@param  string $comment
@return $this