在关联上使用class_name时，accepts_nested_attributes_for

Question

Here's the code:

User.rb

class User < ActiveRecord::Base
    # So we can reference the user's Client information with user.as_client
    has_one :as_client, :class_name => 'ClientAccount'
    accepts_nested_attributes_for :as_client
end

form.html.erb

<%= f.label :first_name %>
<%= f.text_field :first_name %>

<%= f.fields_for :as_client do |c| %>
  <%= c.label :website %>
  <%= c.text_field :website %>
<%= end %>

Now, when I submit the form, this is what gets sent:

{"user"=>{"first_name"=>"Name", "as_client_attributes"=> "website"=>"http://website.com"}}, "commit"=>"Update User"}

And I get this error:

Can't mass-assign protected attributes: as_client_attributes

How can I make this work? Thanks!

Answer 1

You need to add attr_accessible :as_client_attributes in the User model so you can mass-assign attributes via accepts_nested_attributes_for .

http://api.rubyonrails.org/classes/ActiveRecord/NestedAttributes/ClassMethods.html