Still trying to understand delegation. Why do this not work?

Mr Do

I dont get it. From following other examples, I dont see why this doesnt work!

I have in one extension this control extended class:
class DojoFiles extends Control { function DojoFiles(&$Context) { $this->Name = 'DojoFiles'; $this->Control($Context); $this->CallDelegate('Constructor'); } function Render() { $this->CallDelegate('PreDojoFilesRender'); [..]

and then I have this in another extension:
if ( ('extension.php' == $Context->SelfUrl)) { function writeWikiAdd() { echo "<div style='width:100%;border-top:1px solid #999;border-bottom:1 px solid #999;background:#ddd;color:#999;padding:10px;'>"; echo "Have you checked out the wiki lately?</div>"; } if (isset($Context)) $Context->AddToDelegate('DojoFiles', 'PreDojoFilesRender', 'writeWikiAdd'); }

MySchizoBuddy

use the adddelegate outside the if statements. Use a debugger to find out if the function is being called or not.

Mr Do

nope. no effect

MySchizoBuddy

You just have to enable the wiki before u enable DojoFiles When u enable the wiki it adds the function to the Delegate collection, and when dojo runs, it looks up the delegate in the delegate collection, finds it and runs it. Now please use a debugger, If u did u would see that dojo checks to see if the delegates exists and doesn't find it. thats when u'll know to enable the wiki before dojo.

Max_B

Depending of the order the extensions are loaded this might work or not.
You do NOT need to use delegation with custom classes. This paradigm is made to offer hooks to the core from extensions.

Mr Do

ah ok. it was that simple.. we really do need to find a solution for this order of enabling. ah well.