# Ajax Form with Multipart File Upload in Rails 3.0

**URL:** <https://www.ruby-forum.com/t/ajax-form-with-multipart-file-upload-in-rails-3-0/190756>\
**Category:** Rails\
**Created:** [June 26, 2010, 8:18pm UTC](https://www.ruby-forum.com/t/ajax-form-with-multipart-file-upload-in-rails-3-0/190756 "2010-06-26T20:18:15Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![sharkie](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/s/58f4c7/32.png) [@sharkie](https://www.ruby-forum.com/u/sharkie)\
**Post date:** [June 26, 2010, 8:18pm UTC](https://www.ruby-forum.com/t/ajax-form-with-multipart-file-upload-in-rails-3-0/190756/1 "2010-06-26T20:18:15Z")

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How would I achieve this? In Rails 2.x, I would use responds\_to\_parent,  
but it seems quite unsupported now.

What plugins/gems do people use nowadays that would automate

1. targeting form to iframe
2. sending javascript to iframe
3. having the javascript execute another javascript on parent page

Thank you,

Sharkie

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**Author:** ![sharkie](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/s/58f4c7/32.png) [@sharkie](https://www.ruby-forum.com/u/sharkie)\
**Post date:** [June 28, 2010, 9:06am UTC](https://www.ruby-forum.com/t/ajax-form-with-multipart-file-upload-in-rails-3-0/190756/2 "2010-06-28T09:06:24Z")

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Hi,

you may take a look at:  
[http://github.com/vhochstein/active\_scaffold/blob/master/lib/responds\_to\_parent.rb](http://github.com/vhochstein/active_scaffold/blob/master/lib/responds_to_parent.rb)

I do not think its perfect but at least it s running for me.

–  
Volker