Comments on: Undocumented goodies of Grails - Part 1

By: air jordan 18

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By: Enhance Dog Food

Enhance Dog Food — Fri, 04 Jun 2010 11:47:54 +0000

I think part of the reason this is undocumented could be that this would encourage bad habits of littering the views with too much logic. So use it wisely. I recommend only using this for simple and clear one-liners.

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By: houyr

houyr — Tue, 22 Apr 2008 16:36:33 +0000

Hi Gordon,
There are quite some good articles at the Grails tutorials page: http://grails.codehaus.org/Tutorials
You may want to start from there. Cheers.

By: Gordon Dickens

Gordon Dickens — Tue, 22 Apr 2008 15:55:54 +0000

I am new to Grails, can you point me to an alternative example using the controller or creating a taglib?

Thanks

By: Bedroom Feng Shui

Bedroom Feng Shui — Thu, 10 Apr 2008 21:28:33 +0000

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By: houyr

houyr — Thu, 31 Jan 2008 17:55:07 +0000

I think a better use of this would be to hide the more complex version of within your own tag lib. So you can take the full power of the closure in the tag lib for your custom use case, while keeping the logics and views still separate.
e.g. Create your own instead of coding the closure directly in the gsp.
Any other thoughts are very welcomed.

By: Mano

Mano — Thu, 31 Jan 2008 17:36:58 +0000

I kind of agree with previous comments. I like keeping my gsp simple.
1-line code with complicated nested logic is as good(or bad) as multiline code.

For this case, instead of minutes as integers, I would prefer returning Minute objects with toString overloaded.

Thanks for the tips.

By: houyr

houyr — Wed, 30 Jan 2008 10:14:14 +0000

Yep, I’m also very opposed to littering the views with complex logics. Although this is an interesting feature, I recommend against abusing the closure support beyond simple one-liners.
Thanks for the reminder and I’ve added an alert to the post.

By: bayuadji

bayuadji — Wed, 30 Jan 2008 09:24:48 +0000

hi,

I never use any “complex” code in my grails view, I always do the dirty work in controller, that’s why I use a lot of data in my parameter.

but your tips give me a confidence to do a lot of thing in my views
btw nice tips