# Updating scaffolding form field

**URL:** <https://www.ruby-forum.com/t/updating-scaffolding-form-field/105932>\
**Category:** Rails\
**Created:** [June 4, 2007, 8:20pm UTC](https://www.ruby-forum.com/t/updating-scaffolding-form-field/105932 "2007-06-04T20:20:39Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![dafritz](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/d/958977/32.png) [@dafritz](https://www.ruby-forum.com/u/dafritz)\
**Post date:** [June 4, 2007, 8:20pm UTC](https://www.ruby-forum.com/t/updating-scaffolding-form-field/105932/1 "2007-06-04T20:20:39Z")

</div>

This may be a basic question, but i have an “image” field in a “news”  
table, and have a form that uploads the image. Following the upload,  
the “new” action is called in the rails scaffolding so i can add the  
rest of the news to db entry. I however want the “image” field to  
contain the image “id” that was just created in my image table. I send  
the value to the new action, but cannot get the field to default to  
this value. As i am fairly unfamiliar with where the scaffolding is  
storing the information for this form I am having trouble figuring  
this out. I am unable to find the \_form teplate as is described in  
pickaxe as a partial. Here is the code for the view. The second form  
is the form I am using to upload the image. So my question is how do i  
get the image field to use a default value that was passed to the view  
rather than what is stored as default in my db.

# New news

\<%= start\_form\_tag :action =\> ‘create’ %\>  
\<%= render :partial =\> ‘form’%\>  
\<%= submit\_tag “Create” %\>

\<%= end\_form\_tag %\>

\<%= form\_tag({:action=\>‘save\_picture’}, :multipart =\> true)%\>

\<%= link\_to ‘Back’, :action =\> ‘list’ %\>