Wagn.org: WQL

Feature

WQL, pronounced "wuckle", stands for Wagn Query Language -- as far as we know, the only wiki query language around. Wagn adds structure to wikis; WQL lets us use that structure.

WQL provides syntax for finding lists of cards, a staple of Wagn sites. There are two main ways of creating lists on Wagn: by Pointers, in which users create lists manually, and by Searches which use WQL to find cards dynamically.

WQL+howto

If you edit a Search card, you will see the WQL behind that search. Currently all searches are created by writing WQL by hand. Soon, though, you'll be able to create these searches with a graphical editor. Meanwhile, the good news is that it's simple enough for even non-programmers to do at least simple searches.

See WQL syntax for more information.

(Note for developers: in Search cards, WQL is expressed in JSON, but in the code, it can be expressed in Ruby.)

Pages: WQL+howto, WQL, howto Last Editor: John Abbe

WQL+example

Here's one short example; there are many more at WQL Syntax.

You may know by now that all cards have a cardtype. And that everyone with an account has a card of cardtype User. Suppose you wanted to find all the User cards?

Here's what the WQL would look like in Ruby:

{ :type => 'User' }

and in JSON:

{ "type": "User" }

Both of them roughly translate to:

Find all cards of the type "User."

Gimme all the User cards.

To see this WQL in action, you can make a Search card. We made one called search by type. If you edit it, you will see the JSON version of the WQL above.

Here's the card:

search by type

1 to 20 of 209

zhangpeihao

+nerdy nickname +bio Interest in Wagn I am a ROR programmer. Wagn.org is the best ROR open source project on Rails2.1. What I do What I love How to reach me Birthday: ...

Phoebe Owens

Champ feebs bee phonebee feebrarian

Born in San Francisco, raised in Portland and well-traveled while always keeping my roots in the Pac NW, I am thrilled to ... Interest in Wagn What I do What I love How to reach me Birthday: ...

Amy Sample Ward

+nerdy nickname Dedicated to supporting and educating nonprofits and the progressive social change sector about evolving technologies that cultivate and engage communities. Interest in Wagn What I do What I love How to reach me Birthday: ...

Martha Lasley

+nerdy nickname +bio Interest in Wagn play What I do +what I do What I love +what I love How to reach me +how to reach me Birthday: ...

Jason Greenlaw

+nerdy nickname +bio Interest in Wagn I work with Brandon williamsCraig of Association Building Community and Aiki Extensions and may be contributing to the processarts wagn. What I do What I love How to reach me Birthday: ...

Tom Atlee

+nerdy nickname +bio Interest in Wagn I am using Wagn.org to work on a book on conscious evolution What I do like, you KNOW what I do. Mostly... :) What I love How to reach me Birthday: ...

tom Portante

+nerdy nickname +bio Interest in Wagn A good friend, Jean Russell, suggested I look into Wagn. I'm an independent contractor (and yes, part of this belongs below) who's been asked to ... What I do What I love How to reach me Birthday: ...

Stefan Buliga

+nerdy nickname +bio Interest in Wagn Looks like a smart way of approaching wikis. What I do +what I do What I love +what I love How to reach me Birthday: ...

Myles Orme

+nerdy nickname +bio Interest in Wagn I have a client - the charitable foundation of a corporate who is running projects in schools across the uk - they don't need contact ... What I do What I love How to reach me Birthday: ...

Smári McCarthy

Seamróg +bio Interest in Wagn Considering for use in wiki-based expert systems. What I do Development and innovation, Icelandic Innovation Center. Running a Fab Lab and coordinating several global projects, some of which use Wikis. What I love How to reach me Birthday: ...

FridemarPache

+nerdy nickname +bio Interest in Wagn Hello, found this marvel via communitywiki. From my earlier experience as a Forth programmer I appreciate the card format, because such a format encourages early ... What I do What I love How to reach me Birthday: ...

John Abbe

Cat Herder Born. Breathed, drank, ate, excreted a lot. Sat in rows with other young listening to someone at the front of the room talking a lot. ... Interest in Wagn Wagn scratches some long-running itches of mine about harnessing the power of computers to organize information in ways it can't ve organized in physical form. ... What I do What I love How to reach me Birthday: ...

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