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POCan't mass-assign protected attributes: profiles,
 

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    <p>I read lot of related posts but can't find why it's not working for me. I still have a "can't mass-assign protected attributes: profiles"... What am I doing wrong ?</p> <p>I have a User model and a related Profile model with a one-to-one relationship. Here the <strong>User model (simplified)</strong></p> <pre><code>class User &lt; ActiveRecord::Base attr_accessible :email, :password, :password_confirmation, :profile_attributes, :profile_id has_secure_password has_one :profile accepts_nested_attributes_for :profile end </code></pre> <p><strong>the Profile model</strong></p> <pre><code>class Profile &lt; ActiveRecord::Base attr_accessible :bio, :dob, :firstname, :gender, :lastname, :user_id belongs_to :user end </code></pre> <p>my <strong>User controller</strong></p> <pre><code>def new @user = User.new respond_to do |format| format.html # new.html.erb format.json { render json: @user } end end def create @user = User.new(params[:user]) @user.build_profile respond_to do |format| if @user.save format.html { redirect_to @user, flash: {success: 'User was successfully created. Welcome !'} } format.json { render json: @user, status: :created, location: @user } else format.html { render action: "new" } format.json { render json: @user.errors, status: :unprocessable_entity } end end end </code></pre> <p>If it can be of any help, both User and Profile were scaffolded. </p> <p>I tried too with ':profiles_attributes' instead of 'profile_attributes' in the User attr_accessible, same problem...</p> <p>tried too, '@user.profiles.build' instead of '@user.build_profile' in the User controller... same result...</p> <p>Any help with some explanation would be great (I'm a noob on rails so forgive me)</p> <p><strong>EDIT The simple form I use</strong></p> <pre><code>&lt;%= simple_form_for(@user) do |f| %&gt; &lt;%= f.error_notification %&gt; &lt;%= f.simple_fields_for :profiles do |p| %&gt; &lt;div class="nested-form-inputs"&gt; &lt;%= p.input :lastname %&gt; &lt;%= p.input :firstname %&gt; &lt;/div&gt; &lt;% end %&gt; &lt;div class="form-inputs"&gt; &lt;%= f.input :email %&gt; &lt;%= f.input :password %&gt; &lt;%= f.input :password_confirmation %&gt; &lt;/div&gt; &lt;div class="form-actions"&gt; &lt;%= f.button :submit %&gt; &lt;/div&gt; &lt;% end %&gt; </code></pre> <p>Cheers </p>
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