<%doc>

=head2 link

This creates an <a href="... to a command in the Apache::MVC system by
catenating the base URL, table, command, and any arguments.

</%doc>
<%args>
    $table
    $command
    $additional
    $label
</%args>
% $additional &&= "/$additional";
<a href="<% $base %>/<% $table %>/<% $command %><% $additional %>"><% $label %></a>