- web-devel - Haskell.org

ANN: yesod-paginate
by Alexander Dunlap 22 Dec '10

22 Dec '10

I have just released yesod-paginate[1], a simple Yesod-based subsite library that simplifies somewhat the process of paginating long series of items. The library does not deal with formatting (that is provided by the user as a subsite argument); it merely sets up some URLs that allow users to view items a few at a time. It also provides prevLink and nextLink functions that provide the routes to the next and previous page of items. The URL scheme is as follows: / : redirect to /(default number of entries)/0 /x : redirect to /(default number of entries)/x /y/x : view items y at a time, starting with entry x There is also a git repository[2]. Any feedback or questions can be emailed to me. [1]: http://hackage.haskell.org/package/yesod-paginate [2]: https://github.com/ajdunlap/yesod-paginate Alexander Dunlap

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[Yesod][Persist] Like keyword
by いとうかつとし 22 Dec '10

22 Dec '10

Hi continuously another request... I'd like to write "Like" keyword for using as Filter. this isn't supported yet, is this?

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Yesod User Survey
by Michael Snoyman 21 Dec '10

21 Dec '10

Hi all, I wanted to let you know that I've put up a Yesod user survey[1]. The goal is to get some good feedback on what the Yesod team should be focusing on to make the framework (and all related libraries) more useful. If you're using Yesod, related packages, or are just interested in the whole thing, please take the time to fill out the survey. I've put up basically the same information, plus a little status update on Yesod 0.7, in a blog post[2]. Thanks, Michael [1] https://spreadsheets.google.com/viewform?formkey=dDRhcFVCRVdjbXZuNXJGVUItb3… [2] http://docs.yesodweb.com/blog/yesod-user-survey/

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Re: [web-devel] [Yesod][Persist] Like keyword
by Greg Weber 21 Dec '10

21 Dec '10

mongoDB does not have LIKE. But it has regular expressions, so LIKE is easy to implement. I doubt Redis has anything here. A true key-value store like Redis already doesn't make much sense with the filtering 'Where' queries. I think of Persistent not as a key-value friendly store, but as a noSQL friendly interface (no joins) that something like MongoDB fits in well. The other think to think about is creating better capabilities for allowing users to use arbitrary SQL (or mongo queries) with Persistent.

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Re: [web-devel] [Yesod] Is there a api which get yesod version?
by Michael Snoyman 21 Dec '10

21 Dec '10

Thanks to everyone for input on this, I was completely unaware of Paths_* being provided by cabal. I've just pushed a yesodVersion function to the ver0.7 branch on Git. For the record, you *do* need to include the Paths_* module in other-modules in order to make your code usable. Michael On Tue, Dec 21, 2010 at 2:42 PM, Simon Meier <iridcode(a)gmail.com> wrote: > > > 2010/12/21 Felipe Almeida Lessa <felipe.lessa(a)gmail.com> >> >> 2010/12/21 Michael Snoyman <michael(a)snoyman.com>: >> > Do you know of any prior art that does this? Having a package import >> > files generated by cabal seems like it could cause problems. >> >> Although Cabal's documentation only mentions 'getDataFileName' [1], >> the API states that the Paths module should "enable [the packages] to >> find their version number" [2]. So that's the intended use, even if >> not very well documented. Just remember to put the Paths in >> 'other-modules' [1]. > > I'm not sure, if it should be put in 'other-modules' as the > your_project_paths.hs is an autogenerated file, which you don't want to ship > with your source. I'd rather go for exporting the yesod version via its own > API and use the paths file to implement that functionality. One thing, I > always found useful is to have a directory > interactive-only-src/ > containing a copy of the autogenerated paths file as in > interactive-only-src/your_project_paths.hs > together with the .ghci file containing a line > :set -iinteractive-only-src > This way you GHCi works as intended and the paths file is autogenerated and > compiled in upon install. > > cheers, > Simon >> >> [1] >> http://www.haskell.org/cabal/release/cabal-latest/doc/users-guide/authors.h… >> [2] >> http://www.haskell.org/cabal/release/cabal-latest/doc/API/Cabal/Distributio… >> >> Cheers! =) >> >> -- >> Felipe. >> >> _______________________________________________ >> web-devel mailing list >> web-devel(a)haskell.org >> http://www.haskell.org/mailman/listinfo/web-devel > >

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[Yesod] Is there a api which get yesod version?
by いとうかつとし 21 Dec '10

21 Dec '10

hi, i'd like to display like as "powered by Yesod ver 0.6.7" on footer of my application. Is there an api?

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[Yesod] getBy404.
by いとうかつとし 20 Dec '10

20 Dec '10

I'd like to support getBy404 as like as get404 on yesod framework. getBy404 ukey = do mres <- getBy ukey case mres of Nothing -> lift notFound Just res -> return res for example, on wiki site, the resource url include wikiname as key(String) not id (Int). In this situation, getBy404 are frequently encountered. How about this?

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[Yesod] setUltDest' lost query param, it's right thing?
by いとうかつとし 20 Dec '10

20 Dec '10

setUltDest' which used in redirectLogin(which is called from requireAuth) set session reqGetParams, but not postParams. This means that , if there are a code as below, posted parameters are lost, aren't these? postFooR :: Handler RepHtml postFooR = do (uid,_) <- requireAuth (x, y) <- uncurry (liftM2 (,)) (lookupPostParam "x", lookupPostParam "y") .... defaultLayout $ do .... ....

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Interpolation character in Julius
by Michael Snoyman 20 Dec '10

20 Dec '10

Hamlet, Cassius and (currently) Julius all use a consistent set of characters for interpolation. The dollar sign ($) is for plain scalars, the at sign (@) is for URLs and the caret (^) is for embedding other templates (mixins in the case of Cassius). I like this consistency. Unfortunately, in the case of Julius, the dollar sign is a suboptimal character to use since jQuery uses is so extensively. Currently, to write some simple jQuery Javascript such as: $("h1").hide() you have to use a double dollar sign to achieve escaping, namely: $$("h1").hide() So the questions to the list are: * Is it worth trading consistency for a better choice of interpolation character? * If so, what would be a more optimal interpolation character? I think percent sign (%) might be acceptable. Interpolation is not as important in Julius as it is in Hamlet, so I'm beginning to lean towards replacing the character. Michael

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Open for testing: new Hamlet syntax
by Michael Snoyman 19 Dec '10

19 Dec '10

Hey all, I've just pushed the first commit that includes support for the angle-bracket syntax in Hamlet. Anyone who's interested, please take a look at the code[1] and try to figure out what doesn't work yet. I'm sure there are a lot of corner cases I have not yet taken into account, so if you find something that doesn't produce the output you expected, please let me know so I can add a test case for it and try to get it fixed. (Yes, I code Hamlet with TDD.) On a related note for those interested, I've started work on a lot of new major versions for packages, including wai, wai-extra, persistent and yesod. One of the things I'm considering for this release of Yesod (0.7, not a 1.0 yet) is to move some of the functionality into separate packages. In particular, I think forms, crud and json will all be put in their own packages. The only change to persistent is migrating from MonadInvertIO to MonadPeelIO, which is a much more well designed approach. wai will most likely be seeing a major change in how the underlying mechanism works to make it more efficient (based on blaze-builder), more standard (based on enumerator) and more generic. This last point might make the interface more confusing, but I think it is worth it overall. The new version of Yesod will be based on this version of WAI, and I plan to simultaneously release new versions of related packages, like wai-handler-fastcgi or yesod-auth. Also, last call on new Yesod web page design. If no one volunteers, I'm just going to grab the standard Haskell color scheme and get to work on it myself. Michael [1] https://github.com/snoyberg/hamlet

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