# In views, can I use method into application?

**URL:** <https://www.ruby-forum.com/t/in-views-can-i-use-method-into-application/128953>\
**Category:** Rails\
**Created:** [February 12, 2008, 11:40pm UTC](https://www.ruby-forum.com/t/in-views-can-i-use-method-into-application/128953 "2008-02-12T23:40:20Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![OnRails](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/o/51bf81/32.png) [@OnRails](https://www.ruby-forum.com/u/OnRails)\
**Post date:** [February 12, 2008, 11:40pm UTC](https://www.ruby-forum.com/t/in-views-can-i-use-method-into-application/128953/1 "2008-02-12T23:40:20Z")

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I defined a method ( def scan )into application, I want to use this  
method in views. but when I used, there is a error:  
undefined method `scan’ for #ActionView::Base:0x4d91e40

So who can help me? Thanks!

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<div class="post-metadata">

**Author:** ![OnRails](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/o/51bf81/32.png) [@OnRails](https://www.ruby-forum.com/u/OnRails)\
**Post date:** [February 13, 2008, 12:45am UTC](https://www.ruby-forum.com/t/in-views-can-i-use-method-into-application/128953/2 "2008-02-13T00:45:34Z")

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> I defined a method ( def scan )into application, I want to use this  
> method in views. but when I used, there is a error:  
> undefined method `scan’ for #ActionView::Base:0x4d91e40

If it’s a helper method you could put it into  
app/helpers/application\_helper.rb and it would then be available to your  
views…

-philip