[pmwiki-devel] modifying $pagename upon first Save - FREQ

[J. Meijer]

> From: pmichaud at pobox.com

> Your description misstates the purpose and function of $EditFunctions.  
> $EditFunctions doesn't contain HandleEdit, $HandleActions does.  
> $EditFunctions is a list of functions to be called whenever the 
> page is being edited or updated.
> 
> And this thus answers your question -- what you really want
> to do is to modify pagename just before the page gets saved.
> For that you just need to insert a special function in
> $EditFunctions that will correct the pagename just before
> the page gets saved.  Something like:
> 
>     function TransformPageName(&$pagename, &$page, &$new) {
>       global $EnablePost;
>       ## adjust $pagename if page is about to be saved
>       if ($EnablePost) {
>         $pagename = preg_replace('/___.*$/', '_01', $pagename);
>       }
>     }
> 
>     ## Insert 'TransformPageName' immediately before 'PostPage'
>     array_splice($EditFunctions,
>                  array_search('PostPage', $EditFunctions), 
>                  0, 'TransformPageName');
> 


Great! This promises to work and resolves my problem. 

The approach reveals my problem with the edit functions: I simply adhered to "their API", limiting access to $pagename: 

   MyEditFunction($pagename, &$page,&$new)

While I wanted to have (and even suggested) is:

   MyEditFunction(&$pagename, &$page,&$new)       # note added the & in front of $pagename

Just as you state. I mistakenly assumed this would change the API, but heck no, this is PHP :-)) 

:-)))

/jm





> 
> Note that as described here, HandleEdit will still use the
> permissions of the original $pagename to decide if the
> author has permissions to edit the page.  If you want to
> verify that the author has write permissions under the
> new pagename, make an additional call to CondAuth()
> after changing the pagename, and set $EnablePost to zero
> if the page should not be saved.
> 

Good reminder. 

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