Nested object problems

Im making nested attributes for profile on the user model and I also
need to validate the profile info
so I put

User model

has_one :profile
accepts_nested_attributes_for :profile
validates_associated :profile <— To validate values
attr_accessible :profile <----to allow mass assingment

Profile model

belongs_to :user, :dependent => :destroy

Some Validations <<<

But Im getting

Profile(#30752520) expected, got

Becouse of the
attr_accessible :profile
I think, but if I dont have that line I cant enter values for profile,
Anyways. when I take that line off, my profile forms isn’t validated,
this problem come when changing to rails 3.0.7

Hi Tomas,

Try changing your mass-assignment protection line to:

attr_accessible :profile_attributes

If that still doesn’t work send your view code. If you haven’t
already ready read the nested attribute docs, they explain things
pretty well:

Matt Daubert

I added that line but still dont work

User Form

<%= form_for @user do |f| %>
<%= render ‘shared/error_messages’, :record => @user %>

Some Field Tags <<<

<%= f.fields_for @user.build_profile do |builder| %> <%= render 'profile_form', :f => builder %> <% end %>

<%= f.submit (@user.new_record? ? "Registrarse" : "Editar") %>

<% end %>

Profile Fields

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

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

On User Model

has_one :profile
attr_accessible :username, :password, :profile_attributes
accepts_nested_attributes_for :profile
validates_associated :profile

When submiting

WARNING: Can’t mass-assign protected attributes: profile

Fixed: Changed @user.build_profile from view to controller