December 2010 - web-devel

[Yesod] How to write a field as binary data column.
by いとうかつとし 26 Dec '10

26 Dec '10

Hi I'm planning store files (ie. images, excel ...) into database. how to write this?

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MochaHost for yesod applications?
by Nubis 26 Dec '10

26 Dec '10

I've decided to look for a cheap VPS where I can compile and run yesod applications using the latest and greatest haskell platform. I couldn't find any sane CGI/FastCGI shared host options. I'm even inclined towards developing some sort of heroku.com clone for apps running on WAI so we can solve the deployment issue for most people once and for all. I don't want to go with some obscure hosting I've never heard about and it has to be cheap (Argentinian budget). I've found mochahost has a pretty cheap VPS service with some cool OS choices. http://mochahost.com/vps.php Just thought the information may be useful for someone in the same situation as me, but I would like to hear if anyone has tried mochahost or even found an even more convenient choice for VPS. cheers! ----nubis :)

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using YesodJquery with other jquery plugins
by Greg Weber 24 Dec '10

24 Dec '10

Hi Max, I have: instance YesodJquery APPNAME where urlJqueryJs _ = Left $ StaticR js_jquery_1_4_4_min_js urlJqueryUiJs _ = Left $ StaticR js_jquery_ui_1_8_6_custom_min_js urlJqueryUiCss _ = Left $ StaticR css_jquery_ui_1_8_6_custom_css instance Yesod APPNAME where defaultLayout widget = do mmsg <- getMessage y <- getYesod pc <- widgetToPageContent $ do addWidget widget addScriptEither $ urlJqueryJs y addScriptEither $ urlJqueryUiJs y addStylesheetEither $ urlJqueryUiCss y !!! %html %head ^pageHead.pc^ ... This kind of system should fix your problems. This does seem like unnecessary boiler plate though. Greg Weber

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using YesodJquery with other jquery plugins
by Max Cantor 23 Dec '10

23 Dec '10

Hi, I've been trying to use jquery's ui-layout plugin in a yesod project. Unfortunately, the YesodJquery typeclass sticks the jquery script calls at the bottom of the header, so when I toss in addScriptRemote "<url for ui-layout>" it gets inserted above the jquery scripts which breaks it. I've temporarily solved the problem by adding a %script!src="<url for ui-layout>" to the body of my hamlet file but this is pretty poor form and ideally wouldn't be necessary. Is there a better way? If not, perhaps making an adding a function to the YesodJquery typeclass: urlJqueryPluginsJs :: a -> [Either (Route a) String] in which one could add in plugin files that would be guaranteed to load in that order, after the jquery and jquery-ui files are loaded, would be a viable solution. Thanks, Max

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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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