Re: I need some thoughts on code duplication and separation

On 21 October 2010 04:59, David McGlone <david@dmcentral.net> wrote: > On Thu, 2010-10-21 at 04:05 +0200, Rico Secada wrote: >> Hi. >> >> I am working on a small system where I am both trying to avoid code >> duplication and at the same time I am trying to keep the presentation >> logic separated from the application logic. >> >> I am using sessions and are avoiding "headers already sent" problem by >> keeping the HTML out of the application. >> >> For example, I would like to have a common header.php file, but it is >> difficult to create this since one file needs to have some specific >> Javascript located in the <head> </head> tags, but the other files >> doesn't need this. >> >> Another file needs to have a specific "onload" call in the <body> tag, >> while yet another file also needs to have an "onload" call, but with >> different attributes. >> >> I have been looking around in other systems to see what kinds of >> solutions are being used - as inspiration. >> >> I have been thinking about the following solutions: >> >> 1. Create only ONE header.php file that contains a lot of conditionals >> depending on what file is including it - the output of HTML/Javascript >> changes. >> >> I believe this would turn into a very ugly hack. Difficult to maintain. >> >> 2. Create a HTML generating class with a set of methods that each >> contains an adequate amount of parameters. Each method maintains its >> own HTML tag. For example, docType($type) would generate the doctype >> specification. >> >> I believe this is a "cleaner" solution, but the problem with code >> duplication isn't avoided. >> >> Some of the presentation logic contains conditionals and the HTML >> changes when the conditional changes, hence the header content changes, >> but the <doctype>, <html>, and <head> doesn't necessarily change and >> they would get duplicated a couple of times in some files. >> >> 3. Avoid the problem all together, use output buffering and completely >> forget about separation between application and presentation. >> >> I hope I make sense. >> >> Any thoughts on these kinds of problems? > > sounds like a job for smarty http://www.smarty.net/ > > I've used smarty and it's nice. > How does Smarty solve this problem? Just curious. Regards Peter -- <hype> WWW: plphp.dk / plind.dk LinkedIn: plind BeWelcome/Couchsurfing: Fake51 Twitter: kafe15 </hype>