# Link\_to to change input value

**URL:** <https://www.ruby-forum.com/t/link-to-to-change-input-value/145097>\
**Category:** Rails\
**Created:** [August 6, 2008, 12:49am UTC](https://www.ruby-forum.com/t/link-to-to-change-input-value/145097 "2008-08-06T00:49:06Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![jturney](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/j/e99b99/32.png) [@jturney](https://www.ruby-forum.com/u/jturney)\
**Post date:** [August 6, 2008, 12:49am UTC](https://www.ruby-forum.com/t/link-to-to-change-input-value/145097/1 "2008-08-06T00:49:06Z")

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hi,

\<%= text\_field\_tag :search\_id, params[:search\_id], :id=\>“search\_id” %\>

how would I make a link\_to with an :onclick to change the input field  
with id=“search\_id”?

Thanks!

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<div class="post-metadata">

**Author:** ![jturney](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/j/e99b99/32.png) [@jturney](https://www.ruby-forum.com/u/jturney)\
**Post date:** [August 6, 2008, 1:06am UTC](https://www.ruby-forum.com/t/link-to-to-change-input-value/145097/2 "2008-08-06T01:06:02Z")

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it can be done by just some simple javascript tricks like  
$(‘search\_id’).value=‘whatever you want to change the input field to’  
and write  
\<%=link\_to “name”,“#”,:onclick=\>“$(‘search\_id’).value=‘whatever you want  
to  
change the input field to’”%\>  
2008/8/6 Justin To [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid)

---

<div class="post-metadata">

**Author:** ![jturney](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/j/e99b99/32.png) [@jturney](https://www.ruby-forum.com/u/jturney)\
**Post date:** [August 6, 2008, 9:37am UTC](https://www.ruby-forum.com/t/link-to-to-change-input-value/145097/3 "2008-08-06T09:37:09Z")

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Or better with inline RJS:

\<%= link\_to\_function “Click me” do |page|  
page[‘search\_id’].value = ‘somethingnew’;  
end %\>