[dokuwiki] Re: My first dokuwiki plugin does not work quite well
- From: Lorenzo Ferrara <lorenzojr_82@xxxxxx>
- To: dokuwiki@xxxxxxxxxxxxx
- Date: Fri, 26 Jan 2007 00:58:18 +0100
Chris Smith ha scritto:
> Lorenzo Ferrara wrote:
>> Andreas Gohr ha scritto:
>>
>>> On Fri, 26 Jan 2007 00:08:14 +0100
>>> Lorenzo Ferrara <lorenzojr_82@xxxxxx> wrote:
>>>
>>>
>>>> Feed2DokuWiki is the first plugin I've written. It parses a remote xml
>>>> feed and prints it in a wiki page. The feed is parsed using magpierss.
>>>>
>>> What is wrong with {{rss>http://www.example.com/feed.xml}} ?
>>>
>>> See http://wiki.splitbrain.org/wiki:rss
>>>
>>>
>>
>> That is great! But I would like to understand the problems in my
>> plugin... for the next one...
>>
>> Tanks
>>
>> Lorenzo Ferrara
>>
>> P.S.
>> Next time I can't find a plugin, before I try to develop it, I'll ask in
>> the mailing list.
>>
> RSS isn't a plugin but native DokuWiki.
>
> I can't say why your plugin broke the page, especially since you've
> taken down the example page.
http://www5.autistici.org/glugbn/feedtodokuwiki
Added "Example".
> For details on how plugins work check out the tutorial at splitbrain and
> also read the page on the parser. To summarise the issue you've
> encountered. DokuWiki has a three stage process for generating the
> final xhtml.
>
> raw wiki page
> dokuwiki instructions
> rendered xhtml
>
> the instructions are generated once after the page is edited. those
> instructions are then uses repeatedly to generate the xhtml page. The
> xhtml page itself is cached and will only be regenerated if its older
> than your cache configuration setting or one of its dependencies has
> changed.
>
> what this means is there is a disconnect between handle() and render().
> Render can only work on data passed into it via its parameters. It
> can't assume that object properties were previously set by handle() - as
> handle most likely ran hours/minutes/days ago.
> So the reason it worked on preview and the first time after cache
> deletion was that you were forcing a circumstance when handle() and
> render() did run together.
>
> All of this and much more is explained in the tutorial.
>
> Cheers,
>
> Chris
Tanks!
Lorenzo Ferrara
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