Some form of multiple argument dispatch may be in order. If I wanted to continue in your style, I would follow one of the means of doing so discussed in Conway's Object-Oriented Perl.

On the other hand, it would be enlightening if you came up with something that drew a line in terms of scalability vis-a-vis the various web application development environments --- I have about 10 listed in my home node and no objective tests as to which approach is better and why.