As I worked on a new plugin system for HTML::Template [0], I recycled code from CGI::Application's new plugin system [1].
As I reflected on this, CGI::Application has developed a nice plugin system which is easily re-usable on it's own. It is most similar to Class::Trigger [2], but I think the CGI::App solution is more advanced for these reasons: - We look up the inheritance tree for more callbacks to execute - We allow arguments to be passed into the callbacks, customizing how each callback can work, and creating clearer, more explicit syntax than passing through the object. - We have a specific callback ordering, and we expect to soon solve the problem of making this ordering to be sufficiently flexible to address most plugin needs. - Class::Trigger requires your object be implemented as blessed hashref (Gasp!). We could solve this in our implementation by adding a method for 'installed_callbacks()', which could be trivially overridden if the callbacks needed to be stored in the object a different way. So I would like to move CGI::App's plugin system into it's own module, which wouldn't change anything from a user's perspective, except perhaps where the related documentation is located. I could see what we have possibly being merged into a future enhanced version of Class::Trigger, which CGI::App would then have it's own plugin for, to keep compatibility with the names we've already established. 0. http://use.perl.org/~markjugg/journal/26089 1. http://www.cgi-app.org/?Plugins 2. http://search.cpan.org/perldoc?Class::Trigger Collaborators welcome! Let's keep discussing it on the CGI::App mailing list and #cgiapp on irc.perl.org. Mark -- . . . . . . . . . . . . . . . . . . . . . . . . . . . Mark Stosberg Principal Developer [EMAIL PROTECTED] Summersault, LLC 765-939-9301 ext 202 database driven websites . . . . . http://www.summersault.com/ . . . . . . . . ------------------------------------------------------- SF.Net email is Sponsored by the Better Software Conference & EXPO September 19-22, 2005 * San Francisco, CA * Development Lifecycle Practices Agile & Plan-Driven Development * Managing Projects & Teams * Testing & QA Security * Process Improvement & Measurement * http://www.sqe.com/bsce5sf _______________________________________________ Html-template-users mailing list Html-template-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/html-template-users
