# Using :except or :only on a before\_filter block

**URL:** <https://www.ruby-forum.com/t/using-except-or-only-on-a-before-filter-block/70822>\
**Category:** Rails\
**Created:** [February 20, 2006, 12:03pm UTC](https://www.ruby-forum.com/t/using-except-or-only-on-a-before-filter-block/70822 "2006-02-20T12:03:35Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![tomtt](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/t/e47c2d/32.png) [@tomtt](https://www.ruby-forum.com/u/tomtt)\
**Post date:** [February 20, 2006, 12:03pm UTC](https://www.ruby-forum.com/t/using-except-or-only-on-a-before-filter-block/70822/1 "2006-02-20T12:03:35Z")

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Hi all,

How do you use :except or :only conditions on a filter block? I can’t  
seem to work out the syntax!

I’m currently doing:

before\_filter { |c| c.role\_required ‘admin’ }

Thanks a lot!

Tom

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<div class="post-metadata">

**Author:** ![tomtt](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/t/e47c2d/32.png) [@tomtt](https://www.ruby-forum.com/u/tomtt)\
**Post date:** [February 20, 2006, 3:17pm UTC](https://www.ruby-forum.com/t/using-except-or-only-on-a-before-filter-block/70822/2 "2006-02-20T15:17:25Z")

</div>

before\_filter(:only =\> [:anaction]) { |c| c.role\_required ‘admin’ }  
before\_filter(:except =\> [:anaction]) { |c| c.role\_required ‘admin’ }

## – Kent

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