...perhaps a reply to a topic would be a subclass of the user.

That's a flashing red light to your line of thought. A reply is not a user. Rethink the design you have cooking so that a Topic has a Reply, which has an Author, who is a User. That's fundamental OO design.

After Compline,
Zaxo

In reply to Re: Re: Re: desired: example of a user class for website by Zaxo
in thread desired: example of a user class for website by nmerriweather

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