# Nested form polymorphic

**URL:** <https://www.ruby-forum.com/t/nested-form-polymorphic/184243>\
**Category:** Rails\
**Created:** [February 27, 2010, 2:34am UTC](https://www.ruby-forum.com/t/nested-form-polymorphic/184243 "2010-02-27T02:34:03Z")\
**Posts on this page:** 1\
**Page:** 1

<div class="post-metadata">

**Author:** ![badnaam](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/b/e36b37/32.png) [@badnaam](https://www.ruby-forum.com/u/badnaam)\
**Post date:** [February 27, 2010, 2:34am UTC](https://www.ruby-forum.com/t/nested-form-polymorphic/184243/1 "2010-02-27T02:34:03Z")

</div>

3 models - User, Images, Interests. Everything looks ok but nothing  
gets inserted into child models:(

Model code excerpt

* * *

User model =\>  
has\_many :interests, :as =\> :interestible, :dependent =\> :destroy  
accepts\_nested\_attributes\_for :interests, :reject\_if =\> proc {|  
attributes| attributes[“name”].blank?}

```
has_many :images, :as => :imageible, :dependent => :destroy
accepts_nested_attributes_for :images, :reject_if => proc {|

```

attributes| attributes[“image\_file\_name”].blank?}

attr\_accessible :username, :password, :password\_confirmation, :email,  
:images\_attributes, :interests\_attributes

* * *

Controller Code

* * *

def new  
@user = User.new  
images = removed\_email\_address@domain.invalid}  
interests = removed\_email\_address@domain.invalid}

```
    respond_to do |format|
        format.html # new.html.erb
        format.xml { render :xml => @user }
    end
end

```

View Code

* * *

\<% semantic\_form\_for @user, :html =\> {:multipart =\> true} do |form| %\>  
\<%#= form.error\_messages %\>  
\<% form.inputs do %\>  
\<%= form.input :username, :label =\> ‘Username’, :input\_html =\>  
{:style =\> “width:50%”}%\>  
\<%= form.input :password, :label =\> ‘Password’ %\>  
\<%= form.input :password\_confirmation, :label =\> ‘Confirm  
Password’ %\>  
\<%= form.input :email, :label =\> ‘Email’ , :input\_html =\> {:style  
=\> “width:50%”}%\>  
\<% end %\>

\<%#images.each do |image| %\>  
\<% form.inputs :for=\> :images,:name =\> ‘Photo #%i’ do |img|%\>  
\<%= img.input :image\_description, :input\_html =\> {:style =\>  
“width:50%”}%\>  
\<%= img.input :image %\>  
\<% end %\>  
\<%# end %\>

\<%# interests.each do |interest| %\>  
\<% form.inputs :for=\> :interests do |inter| %\>  
\<%= inter.input :interest\_name, :input\_html =\> {:style =\>  
“width:  
50%”}%\>  
\<% end %\>  
\<%# end %\>  
\<%= form.buttons %\>  
\<% end %\>

* * *

Log output

Processing UsersController#create (for 127.0.0.1 at 2010-02-26  
15:31:15) [POST]  
Parameters:  
{“user”=\>{“images\_attributes”=\>{“0”=\>{“image\_description”=\>“img1”,  
“image”=\>#\<File:C:/Users/amishra/AppData/Local/Temp/RackMultipart.  
2972.0\>}, “1”=\>{“image\_description”=\>“i2”, “image”=\>#\<File:C:/Users/  
amishra/AppData/Local/Temp/RackMultipart.2972.1\>}},  
“interests\_attributes”=\>{“0”=\>{“interest\_name”=\>“1”},  
“1”=\>{“interest\_name”=\>“1”}, “2”=\>{“interest\_name”=\>“1”}},  
“password\_confirmation”=\>“t”, “username”=\>“t7”, “password”=\>“t”,  
“email”=\>“removed\_email\_address@domain.invalid”}, “commit”=\>“Create User”,  
“authenticity\_token”=\>“M3HPGt76KeSdL0D+038X4qATRi4sEDYRX/F2nxl23qU=”}  
[4;36;1mSQL (1.0ms) [0m [0;1mBEGIN [0m  
[4;35;1mUser Load (1.0ms) [0m [0mSELECT `users`.id FROM `users`  
WHERE (LOWER(`users`.`email`) = BINARY ‘removed\_email\_address@domain.invalid’) LIMIT 1 [0m  
[4;36;1mUser Load (0.0ms) [0m [0;1mSELECT `users`.id FROM  
`users` WHERE (LOWER(`users`.`username`) = BINARY ‘t7’) LIMIT 1 [0m  
[4;35;1mUser Load (0.0ms) [0m [0mSELECT `users`.id FROM `users`  
WHERE (`users`.`persistence_token` = BINARY  
‘61bd9e5355e137d2a83652d431c1870472b9e7bc63cca437e839ff8e80eaea5db5e3ec6d8ac56689dbcd5a49b9b0832c178fc6e1528967d31d66957b58867f0e’)  
LIMIT 1 [0m  
[4;36;1mUser Create (0.0ms) [0m [0;1mINSERT INTO `users`  
(`updated_at`, `last_request_at`, `crypted_password`,  
`perishable_token`, `profile_photo_content_type`, `username`,  
`password_salt`, `current_login_at`, `profile_photo_file_name`,  
`failed_login_count`, `profile_photo_file_size`, `persistence_token`,  
`login_count`, `profile_photo_updated_at`, `email`, `active`,  
`created_at`) VALUES(‘2010-02-26 23:31:15’, ‘2010-02-26 23:31:15’,  
‘a5e0632538b78c7c886c1cb673575286e0dc1d6a2f59006282bf1af251c636bc95e6a827cd2156c1eb62fc19514d7724fec11e158ebb5faf0a88b77dd9a8c4cd’,  
‘A9s-vLoDCsxLm8Q61b8v’, NULL, ‘t7’, ‘Pe-oyjJ9sQr4L9ZyApSb’,  
‘2010-02-26 23:31:15’, NULL, 0, NULL,  
‘61bd9e5355e137d2a83652d431c1870472b9e7bc63cca437e839ff8e80eaea5db5e3ec6d8ac56689dbcd5a49b9b0832c178fc6e1528967d31d66957b58867f0e’,  
1, NULL, ‘removed\_email\_address@domain.invalid’, 1, ‘2010-02-26 23:31:15’) [0m  
Sent mail to removed\_email\_address@domain.invalid

* * *