# Radio button with multiple columns

**URL:** <https://www.ruby-forum.com/t/radio-button-with-multiple-columns/122947>\
**Category:** Rails\
**Created:** [December 12, 2007, 11:10pm UTC](https://www.ruby-forum.com/t/radio-button-with-multiple-columns/122947 "2007-12-12T23:10:59Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![ADADAD](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/a/85e7bf/32.png) [@ADADAD](https://www.ruby-forum.com/u/ADADAD)\
**Post date:** [December 12, 2007, 11:10pm UTC](https://www.ruby-forum.com/t/radio-button-with-multiple-columns/122947/1 "2007-12-12T23:10:59Z")

</div>

Hello,

I have a normal has\_many :through setup that i need to setup with  
checkboxes and looking for the best approach.

user  
has\_many :entries  
has\_many :contests, :through =\> :entries

contest  
has\_many :entries

entry  
belongs\_to contest  
belongs\_to user

entry - ID, USER\_ID, CONTEST\_ID, RANDOM\_NUMBER

how would i setup a checkbox/radio button so that i can easily submit  
to  
the entry model for each user\_id/contest\_id/random\_number value ?

Thanks  
Adam