[pmwiki-users] Page RSS print without wiki print

[Daniel Roesler]

> Use $HandleActions['pagerss'] = 'YourFunction';

Thanks for the quick response! $HandleActions was just what I was looking for.

> Note that you should probably get the page history in the $page array as I
> wrote above, and not from parsing the actual files : first it is easier,
> second a wiki may use a PageStore class that is not plaintext files
> (CompressedPageStore, SQLite, MySQL...).

I looked at the $page variable, however, it only has the most recent
revision information. I want to dig a little deeper and get more past
revisions. I've already written a parser for the default flat files,
but I would toss that aside if there was a built-in function that gets
multiple past revisions.

Avast!
Daniel Roesler
diafygi at gmail.com


On Sun, Jan 11, 2009 at 10:40 PM, Petko Yotov <5ko at 5ko.fr> wrote:
> On Monday 12 January 2009 04:59:18 Daniel Roesler wrote:
>> Howdy all,
>
> Hello.
>
>> I have a few questions about the order that PmWiki processes things.
>> I'm trying to write a recipe that creates simple RSS feeds for pages
>> detailing their revision history. Basically, my local config.php file
>> looks like:
>>
>> if ($action == "pagerss") {
>> ...
>> // rssxml = parsed history (from the actual page files)
>> ...
>> print(rssxml);
>> }
>>
>> First, how can I print the RSS xml that my recipe creates without
>> printing the rest of the wiki? Is there a variable that sets whether
>> or not the actual wiki page prints?
>
> Use $HandleActions['pagerss'] = 'YourFunction';
>
> function YourFunction($pagename, $auth='read')
> {
>  global $WikiDir, $FeedStartFmt, $FeedEndFmt;
>
>  # get page content and full page history
>  $page = RetrieveAuthPage($pagename, $auth, true);
>  if(!$page) Abort("? Not enough permissions to read feed.");
>
>  ### to see what is $page, uncomment next line:
>  ### echo '<pre>'; print_r($page); exit;
>
>  # $rssxml = parsed history from the $page array, not from the actual file
>
>  # instruct the browser that it is a feed
>  header("Content-type: text/xml; charset=$Charset");
>
>  # $FeedStartFmt contains "<?xml version=\"1.0\" encoding=\"$Charset\"?".">"
>  PrintFmt($pagename, $FeedStartFmt, $rssxml, $FeedEndFmt);
>
> }
>
> See how the scripts/feeds.php is written and you can learn/start from a
> tweaked version of this file (copy it to your /cookbook/ directory first,
> then change all function names).
>
>>
>> Second, how do I incorporate other PmWiki variables into the function,
>> such as $WikiDir and $Namespaced? In pmwiki.php, the local config.php
>> file is loaded before any default variables (besides several like
>> $pagename and $FarmD) are set. How can I set these default variables
>> before running this recipe?
>
> The $HandleActions method will call the function after all variables are set.
>
> Note that you should probably get the page history in the $page array as I
> wrote above, and not from parsing the actual files : first it is easier,
> second a wiki may use a PageStore class that is not plaintext files
> (CompressedPageStore, SQLite, MySQL...).
>
> I would suggest getting some existing recipes (feeds.php and other), learn
> from them, reuse their code, tinker, test, start again.
>
> Thanks,
> Petko
>