Mass Assigment in simple assossiation

I posted a questionnot long ago, yet I still cannot get pass this simple
issue.

Begginer Running rails 3.2.2, Ruby 1.8.7

I have 2 models, a Hotel (created by scaffolding) and Facility (with
empty controller). I am able to set the 1-to-1 association and siplaying
fields but can't seem to insert it in the databases. Im getting:

ActiveModel::MassAssignmentSecurity::Error in HotelsController#create
Can't mass-assign protected attributes: @hotel
app/controllers/hotels_controller.rb:48:in 'new'
app/controllers/hotels_controller.rb:48:in 'create'
--> My models are:

class Hotel < ActiveRecord::Base
  has_one :facility, :dependent => :destroy
  accepts_nested_attributes_for :facility, :allow_destroy => true
  attr_accessible :name, :rating, :recommended, :facility_attributes
end

class Facility < ActiveRecord::Base
  belongs_to :hotel
  attr_accessible :concierge, :hotel_id, :room24h
end
My facility controller, as I said, is empty (it can be, right? since im
associating with Hotel?) My hotel_controller is the default after
creating scaffolding, only with 1 added line:

def new
    @hotel = Hotel.new
    @hotel.build_facility #-->I added this only, I searched and all i
found was this

    respond_to do |format|
      format.html # new.html.erb
      format.json { render :json => @hotel }
    end
  end

def create
    @hotel = Hotel.new(params[:hotel])

    respond_to do |format|
      if @hotel.save
        format.html { redirect_to @hotel, :notice => 'Hotel was
successfully created.' }
        format.json { render :json => @hotel, :status => :created,
:location => @hotel }
      else
        format.html { render :action => "new" }
        format.json { render :json => @hotel.errors, :status =>
:unprocessable_entity }
      end
    end
  end
Finaly, my form html is:

<%= form_for(@hotel) do |f| %>

<div class="field">
    <%= f.label :name %><br />
    <%= f.text_field :name %>
  </div>
  <div class="field">
    <%= f.label :rating %><br />
    <%= f.number_field :rating %>
  </div>
  <div class="field">
    <%= f.label :recommended %><br />
    <%= f.check_box :recommended %>
  </div>
  <br />

    <h2>Hotel Facilities</h2>

    <%= f.fields_for :@hotel do |facility_fields| %>
<div class="field">
    <%= facility_fields.label :room24h, "24h Room Service:" %>
    <%= facility_fields.check_box :room24h %>
  </div>
<div class="field">
    <%= facility_fields.label "Concierge:" %>
    <%= facility_fields.check_box :concierge %>
  </div>
<%end%>
  <div class="actions">
    <%= f.submit %>
  </div>
<% end %>
The error I am getting when creating is at beggining of question. Should
I be adding more code do the hotel_controller? What could it be? Also,
the facility_controller can be empty right? I mean, I'm adding all the
data from the hotel_controller.

Thanks in advance and sorry, im new at RoR :frowning:

I posted a questionnot long ago, yet I still cannot get pass this simple
issue.

Begginer Running rails 3.2.2, Ruby 1.8.7

I have 2 models, a Hotel (created by scaffolding) and Facility (with
empty controller). I am able to set the 1-to-1 association and siplaying
fields but can't seem to insert it in the databases. Im getting:

ActiveModel::MassAssignmentSecurity::Error in HotelsController#create
Can't mass-assign protected attributes: @hotel
app/controllers/hotels_controller.rb:48:in 'new'
app/controllers/hotels_controller.rb:48:in 'create'
--> My models are:

class Hotel < ActiveRecord::Base
has_one :facility, :dependent => :destroy
accepts_nested_attributes_for :facility, :allow_destroy => true
attr_accessible :name, :rating, :recommended, :facility_attributes
end

class Facility < ActiveRecord::Base
belongs_to :hotel
attr_accessible :concierge, :hotel_id, :room24h
end
My facility controller, as I said, is empty (it can be, right? since im
associating with Hotel?) My hotel_controller is the default after
creating scaffolding, only with 1 added line:

def new
@hotel = Hotel.new
@hotel.build_facility #-->I added this only, I searched and all i
found was this

respond_to do |format|
format.html # new.html.erb
format.json { render :json => @hotel }
end
end

def create
@hotel = Hotel.new(params[:hotel])

respond_to do |format|
if @hotel.save
format.html { redirect_to @hotel, :notice => 'Hotel was
successfully created.' }
format.json { render :json => @hotel, :status => :created,
:location => @hotel }
else
format.html { render :action => "new" }
format.json { render :json => @hotel.errors, :status =>
:unprocessable_entity }
end
end
end
Finaly, my form html is:

<%= form_for(@hotel) do |f| %>

<div class="field">
<%= f.label :name %><br />
<%= f.text_field :name %>
</div>
<div class="field">
<%= f.label :rating %><br />
<%= f.number_field :rating %>
</div>
<div class="field">
<%= f.label :recommended %><br />
<%= f.check_box :recommended %>
</div>
<br />

<h2>Hotel Facilities</h2>

<%= f.fields_for :@hotel do |facility_fields| %>

The problem lies here I think, it should possibly be fields_for :facility do ...

Colin

The problem lies here I think, it should possibly be fields_for
:facility do ...

Apologies for the new thread.

It now shows up in the form, the problem now is when I submit, it gives
out an error.
If i change to what you suggested, the same error apears, but for the
@facility

ActiveModel::MassAssignmentSecurity::Error in HotelsController#create

Can't mass-assign protected attributes: @facility
app/controllers/hotels_controller.rb:60:in `new'
app/controllers/hotels_controller.rb:60:in `create'

As for the code, I even tried to do this on the hotel_controller:
def new
    @hotel = Hotel.new
    @facility = @hotel.build_facility
  end

def create

    @hotel = Hotel.new(params[:hotel]).Facility.new(params[:facility])
    @hotel.save

  end

But with no success, still mass-assignement error

Display log:

Started POST "/hotels" for 127.0.0.1 at Mon Apr 16 13:57:18 +0100 2012
Processing by HotelsController#create as HTML
  Parameters: {"hotel"=>{"@facility"=>{"concierge"=>"0",
"room24h"=>"1"}, "rating"=>"2", "recommended"=>"0", "name"=>"kjo"},
"utf8"=>"✓", "commit"=>"Create Hotel",
"authenticity_token"=>"buHOvKyQup/ljrFcUej8mzZ01DEJGxYqaUMvUUkyjn8="}
Completed 500 Internal Server Error in 0ms

ActiveModel::MassAssignmentSecurity::Error (Can't mass-assign protected
attributes: @facility):
  app/controllers/hotels_controller.rb:60:in `new'
  app/controllers/hotels_controller.rb:60:in `create'

  Rendered
c:/Ruby187/lib/ruby/gems/1.8/gems/actionpack-3.2.3/lib/action_dispatch/middleware/templates/rescues/_trace.erb
(1.0ms)
  Rendered
c:/Ruby187/lib/ruby/gems/1.8/gems/actionpack-3.2.3/lib/action_dispatch/middleware/templates/rescues/_request_and_response.erb
(2.0ms)
  Rendered
c:/Ruby187/lib/ruby/gems/1.8/gems/actionpack-3.2.3/lib/action_dispatch/middleware/templates/rescues/diagnostics.erb
within rescues/layout (29.0ms)

I thank you for your time to help me.

Problem solved. To anyone who has the same issue, added to the new
controller:

@facility=@hotel.build_facility

And in the nested form, the correct syntax is:
<%= f.fields_for :facility do |fc|%>

Instead of ... :@facility do ...