P. S.: Post Scriptum

I think it’s the time to present what have I been doing in the last days. A number of improvement have beed added to this web site. In short I have upgraded to wordpress 2.0. I also moved to the next version of wikka. Some of you might remember that I offered some money to whoever could write some code to get the tag plugin to generate an rss list. I didn’t, at the time, explained why. I will now.

Wordpress 2.0 gives the possibility to start categories on the fly. Just adding them, by listing them. Essentially this makes the category in wordpress work like tags (or keywords, for academics). But categories in wordpress also have an rss feed connected to them. Albeit with some bugs, like linking to the whole blog and not to the particular category. So I passed most of the first of January adding to the entries the relative tags as categories. So now I have no need of an rss feed for the tag page, as the tag page has been substituted with the category pages.

You also will rememer that I installed Wikka. The wiki engine. Now wikka is not only open source but also easy source. It is so simple that even I could hack the code. That is very simple! So I changed the code and inserted the possibility to have default pages. In short if before if you were to look for the url http://wiki.pietrosperoni.it/someunexistingpage and there is no page in the wiki called “someunexistingpage” the result would be that the wiki would ask you to edit the page, and you would be redirected to http://wiki.pietrosperoni.it/someunexistingpage/edit.
Now he would create on the fly the page someunexistingpage with the default content. And the default content I chose was the 4 rss feeds:

• the feed from my blog from the category: someunexistingpage
• the feed from my technorati from the tag: someunexistingpage
• the feed from my delicious bookmarks from the tag…
• and the feed from the popular pages in delicious, always from that tag

So for each tag I now have a wiki page with the most relevant rss appearing there. But being a wiki page I also can add other rss feeds, write definitions, comments, todo lists. In short modify it as I see fit.

Still it is not perfect. As it writes the page the first time, from that moment the page is set. I can delete it, but I cannot, for example, change the default content for all the pages that only contain the default content. I tried to write a plugin to do that, but I failed when I confronted the fact that I needed to write a plugin {{defaultpage}} who should have activated other plugins:{{rrs}}, for example. Something that I ignored how to do.
Also having the same string to work for delicious (as tag), wordpress (as category name) and wikka (as pagename) puts some heavy constraints on what the string might contain. For example I am already running ashore for all the tags that contain a dot inside (aaargh, del.icio.us!) or an accented letter (aargh, dear italian).

If you want to see how the pages look like just see the idea page. But any link from the right column (provided they have no dots inside or accents) will work fine.

I have to say that I amvery impressed with Wikka. Wikka is a wiki software that I just installed on my web page. It is simple, yet full of plugins. Open source (or I would not consider it). It also permits to integrate freemind mind map inside it. More than this: for each page the administrator, (ehm, that is me!) can decide who is allowed to read, write and comment. I installed it about one week ago, and I avoided to make it public until I would found a way to deal with wiki spam. I already have too much spam on this blog. Finally I found what I think is the perfect solution:

1. only registered user can comment and modify the wiki. It might not make it very fast, but at least I know who said what.
2. I inserted a plugin such that to register people must write a password in the ‘registration code’. But the password is written on the same log in page.
3. To write spam in the wiki they have to manually register. Which I feel is fair. I have no anger toward those that manually spam. Are the mechanical ones that ought to be stopped.
4. If the spammers write something that automatically register, I will change the registration code.
5. And if they write something that automatically grabs from the page the registration code I change the context (the phrase in which the code appears), making their software useless. I will move from:
   • registration code:”pippo pluto” to
   • registrati0n code:”pippo pluto”

As you cannot code for something that blocks all permutation of the word “Viagra”, so you cannot code for something that codes for all the permutation of the phrase: “Registration Code”. Ah! And this is the revenge of the mass!

I think the idea is so brilliant that I will look if I can find a similar plugin for wordpress.

The next think that impressed me in Wikka was the use of rss. It is actually very easy to integrate an rss in a page. Maybe it is the same in other wiki engines, I don’t know. But on wikka it is absolutely trivial. You just need to write {{rss url=”http://the.rss.net/address.rss” cachetime=”30″}} and the rss gets taken shown, and cached for 30 minutes. Now 30 minutes cache is what del.icio.us requires from you if you are going to connect an rss to your homepage. So now I have started to integrate all sort of rss from delicious to my web page. Check for example my Tag Cloud page. With the rss from my personal bookmarks tagged with tagcloud, rss from the popular page in delicious delicious/popular/tagcloud, and the rss from technorati (i.e. people who have blogged on Tag Clouds).

And all this is in the floating right bar. So I still can use the rest of the page as place for me to write content, and notes…

And as notes taker this wiki is slowly becoming. I started moving my Reading List to the wiki. And I added to the reading list, the rss of popular reading lists. You see, how it all comes together.

But this is not all! Wikka (and they should pay me after a post like this!) gives the possibility to set the privacy for each page. That is for each page you can chose who can read it, who can comment on it and who can change it. In this way I can use this not only as my personal notes but as the notes for project that I might be sharing with other people.

Come and say hello: http://wiki.pietrosperoni.it