test.rb

# app/models/user.rb
has_settings :user_show_settings, :user_settings

# app/views/users/edit_profile.html.erb
<div align="center">
  <%= form_tag update_profile_path, method: :post do %>
    <div class="form-group row no-padding text-center col-md-12">
      <div class="col-md-10 profile-edit">
        <strong> Birthday: </strong>
        <%= text_field_tag :birthday, params[:birthday], placeholder: "Enter your birthday: YYYY-MM-DD", autofocus: true, value: @user.settings(:user_settings).birthday, class: 'form-control search-box input-sm' %>
        
        <strong> Website: </strong>
        <%= text_field_tag :website, params[:website], placeholder: "Enter your Website", value: @user.settings(:user_settings).website, class: 'form-control search-box input-lg' %>
        
        <strong> Bio: </strong>
        <%= text_area_tag :bio, @user.settings(:user_settings).bio, class: 'form-control search-box input-lg' %>
        
        <table>
          <tr>
            <th class="profile-cell">Option</th>
            <th class="profile-cell">Show</th>
            <th class="profile-cell">Hide</th>
          </tr>
          <tr>
            <td class="profile-cell">Full Name</td>
            <td class="profile-cell"><%= radio_button_tag("show_name", true, @user.settings(:user_show_settings).show_name) %></td>
            <td class="profile-cell"><%= radio_button_tag("show_name", false, (true unless @user.settings(:user_show_settings).show_name)) %></td>
          </tr>
          <tr>
            <td class="profile-cell">E-Mail</td>
            <td class="profile-cell"><%= radio_button_tag("show_email", true, @user.settings(:user_show_settings).show_email) %></td>
            <td class="profile-cell"><%= radio_button_tag("show_email", false, (true unless @user.settings(:user_show_settings).show_email)) %></td>
          </tr>
          <tr>
            <td class="profile-cell">Birthday</td>
            <td class="profile-cell"><%= radio_button_tag("show_birthday", true, @user.settings(:user_show_settings).show_birthday) %></td>
            <td class="profile-cell"><%= radio_button_tag("show_birthday", false, (true unless @user.settings(:user_show_settings).show_birthday)) %></td>
          </tr>
          <tr>
            <td class="profile-cell">Website</td>
            <td class="profile-cell"><%= radio_button_tag("show_website", true, @user.settings(:user_show_settings).show_website) %></td>
            <td class="profile-cell"><%= radio_button_tag("show_website", false, (true unless @user.settings(:user_show_settings).show_website)) %></td>
          </tr>
        </table>
        <br />
        <%= button_tag('Update Profile', type: :submit, class: "btn btn-lg btn-success") %>
      </div>
    </div>
  <% end %>
</div>

# app/controllers/user_controller.rb
def update_profile
    byebug # Shows permitted = false
    current_user.settings(:user_settings).birthday = params[:birthday]
    current_user.settings(:user_settings).website = params[:website]
    current_user.settings(:user_settings).bio = params[:bio]
    
    current_user.settings(:user_show_settings).show_name = params[:show_name]
    current_user.settings(:user_show_settings).show_email = params[:show_email]
    current_user.settings(:user_show_settings).show_birthday = params[:show_birthday]
    current_user.settings(:user_show_settings).show_website = params[:show_website]
    
    if current_user.save()
      flash[:success] = "Profile Updated Successfully"
      redirect_to user_path(current_user)
    else
      redirect_to edit_profile_path
    end