Thanks Brion. Is there a conditional that my extension can check to determine if this is a user-facing page render in the UI, vs. one of these internal page renders? (specifically the internal page rendering on Save.)
Thank you, DanB -----Original Message----- From: mediawiki-l-boun...@lists.wikimedia.org [mailto:mediawiki-l-boun...@lists.wikimedia.org] On Behalf Of Brion Vibber Sent: Friday, December 06, 2013 1:35 PM To: MediaWiki announcements and site admin list Subject: Re: [MediaWiki-l] Preventing a tag extension from rendering twice on save? Your tag hook function will be run once every time the page is *parsed & rendered*, not every time the page is saved. It's common to see multiple parses on save; for instance it may be parsed once for link table updates & initial caching with generic settings, then parsed & rendered again for your settings as you load the page up. You'll also likely see it run during times such as: * background update of the page due to update of a template * view of an old revision from history So if your extension assumes that just having a parser tag extension function getting run means you're in a page save operation, you'll need to update that assumption and work with the actual page save hooks. -- brion On Thu, Dec 5, 2013 at 11:32 AM, Daniel Barrett <d...@vistaprint.com> wrote: > I've noticed that parser tag extensions render twice when an article > is saved from the edit page. > All I did was write a parser tag <foo> that runs error_log('foo'). > It prints once when I hit <foo/> on a page, but twice when saving the > page from the wiki editor. > > Is there a way to prevent this double-running on save? > Even way for the extension itself to detect it's on the first (or > second) run and suppress itself? > > I have an extension that is heavyweight, making a SQL query to an > external database, and I don't want to run twice. > > Thanks for any insights! > DanB > > > > _______________________________________________ > MediaWiki-l mailing list > MediaWiki-l@lists.wikimedia.org > https://lists.wikimedia.org/mailman/listinfo/mediawiki-l > _______________________________________________ MediaWiki-l mailing list MediaWiki-l@lists.wikimedia.org https://lists.wikimedia.org/mailman/listinfo/mediawiki-l _______________________________________________ MediaWiki-l mailing list MediaWiki-l@lists.wikimedia.org https://lists.wikimedia.org/mailman/listinfo/mediawiki-l
