If the comments all have the same structure, why store them in different tables? Create a comments table and link that to each of the other four tables somehow. (I suspect you need a linking table to make the one-to-many relationship work, but that's pretty standard.)

Then all you need to do is use a templating system that allows you to use fragments or components and define a comment component and reuse that in your other templates.

In reply to Re: Pseudo-Polymorphism by chromatic
in thread Pseudo-Polymorphism by Spidy

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