Comments on: Quick Tip: has_many :through => checkboxes

By: nando

nando — Fri, 07 May 2010 02:11:32 +0000

Thanks, it's been very useful for me too.

I'd like to point something. In the HTML generated we have diferent checkbox elements with the same id. Also the label's for attribute has the same value for all of them, losing their purpose.

By: Fer

Fer — Sat, 20 Mar 2010 17:46:34 +0000

Excelent! Very Usefull!

greetings from Argentina

By: rcrogers

rcrogers — Wed, 11 Nov 2009 22:44:03 +0000

Word of warning -- when you use the collection_ids method, Rails fails to call before_destroy and after_destroy on the join model, don't ask me why. I wasn't the only one to notice: http://dev.rubyonrails.org/ticket/7743

By: @bpaul

@bpaul — Wed, 05 Aug 2009 02:41:34 +0000

Very nice, I love it when you can get Rails to do most of the work! Now if someone updated the check_box_tag to work nicely with arrays it would be even simpler…

By: Archie

Archie — Wed, 30 Nov -0001 00:00:00 +0000

Hi there.
Thanks for the quick tip. As a newbie I have been struggling with above and think your solution to very simple compared to other examples posted elsewhere. Just one question: Where would you actually place the “merge(params[:user]”to make sure the *_ids= method gets called? I was thinking the update method but I am not sure. Perhaps it would be helpful to put inthis into context.
Much appreciated.
Archie

By: Mike

Mike — Wed, 30 Nov -0001 00:00:00 +0000

Thanks for sharing! You saved my day!
No more messing around with model callbacks to do the job!