Fix dates saved as strings in updates table.

                    user_id: data.usersMap[u.author].id,

                    comment_id: data.commentsMap[CommentsTable.buildKey(c)].id,

                    action: u.action || 'update',

                    created_at: u.updatedAt

                    created_at: fixDate(u.updatedAt)

                });

            });

        });

        next();

    }

    function fixDate(date) {

        return (typeof date === "string") ? Date.parse(date) : date;

    }

    return {

        extract: extract

    };