# Fetch data from textfield

**URL:** <https://www.ruby-forum.com/t/fetch-data-from-textfield/131780>\
**Category:** Rails\
**Created:** [March 13, 2008, 6:59am UTC](https://www.ruby-forum.com/t/fetch-data-from-textfield/131780 "2008-03-13T06:59:56Z")\
**Posts on this page:** 2\
**Page:** 1

<div class="post-metadata">

**Author:** ![subhadip](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/s/3d9bf3/32.png) [@subhadip](https://www.ruby-forum.com/u/subhadip)\
**Post date:** [March 13, 2008, 6:59am UTC](https://www.ruby-forum.com/t/fetch-data-from-textfield/131780/1 "2008-03-13T06:59:56Z")

</div>

i am unable for write query corresponding to text\_field value…  
The code is:  
class MainController \< ApplicationController  
def search

```
 book=Book.find_by_book_id(params[:query])

 redirect_to :controller=>'search',:action=>'sv',:id=>@book
  end
end
```

---

<div class="post-metadata">

**Author:** ![subhadip](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/s/3d9bf3/32.png) [@subhadip](https://www.ruby-forum.com/u/subhadip)\
**Post date:** [March 13, 2008, 7:18am UTC](https://www.ruby-forum.com/t/fetch-data-from-textfield/131780/2 "2008-03-13T07:18:35Z")

</div>

> ```
> book=Book.find_by_book_id(params[:query])
> 
> ```

Try it :

```
   @book=Book.find_by_book_id(params[:query])

```

By creating instance variable it will be accessible to your query field.

```auto
Reinhart Ariando
http://teapoci.blogspot.com
MSN: removed_email_address@domain.invalid
YM : Booking2Heaven

```