# Different text\_fields for different selected item

**URL:** <https://www.ruby-forum.com/t/different-text-fields-for-different-selected-item/129198>\
**Category:** Rails\
**Created:** [February 15, 2008, 11:14am UTC](https://www.ruby-forum.com/t/different-text-fields-for-different-selected-item/129198 "2008-02-15T11:14:59Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![daociyiyou](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/d/0ea827/32.png) [@daociyiyou](https://www.ruby-forum.com/u/daociyiyou)\
**Post date:** [February 15, 2008, 11:14am UTC](https://www.ruby-forum.com/t/different-text-fields-for-different-selected-item/129198/1 "2008-02-15T11:14:59Z")

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Hell:  
When i use select tag in a form,how to show different text\_fields  
below select tag for different selected item without having to click a  
submit tag.I must know  
how to write javascript to accomplish it or there is a rails way to do  
it?  
My second question is:after showing different text\_fields for different  
selected item,how to manage the database side?Different table for  
different text\_fields resulted from selected item or only one table for  
all these text\_fields despite of the selected item?  
I have looked for it in rails doc,but did not get an answer.It is  
really a headache for me.

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<div class="post-metadata">

**Author:** ![daociyiyou](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/d/0ea827/32.png) [@daociyiyou](https://www.ruby-forum.com/u/daociyiyou)\
**Post date:** [February 15, 2008, 2:45pm UTC](https://www.ruby-forum.com/t/different-text-fields-for-different-selected-item/129198/2 "2008-02-15T14:45:25Z")

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anybody can help me?

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<div class="post-metadata">

**Author:** ![daociyiyou](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/d/0ea827/32.png) [@daociyiyou](https://www.ruby-forum.com/u/daociyiyou)\
**Post date:** [February 16, 2008, 2:05am UTC](https://www.ruby-forum.com/t/different-text-fields-for-different-selected-item/129198/3 "2008-02-16T02:05:26Z")

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Guo Y. wrote:

> anybody can help me?

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**Author:** ![daociyiyou](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/d/0ea827/32.png) [@daociyiyou](https://www.ruby-forum.com/u/daociyiyou)\
**Post date:** [February 18, 2008, 5:08am UTC](https://www.ruby-forum.com/t/different-text-fields-for-different-selected-item/129198/4 "2008-02-18T05:08:57Z")

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Guo Y. wrote:

> > anybody can help me?