title: rails 4 strong params ForbiddenAttributesError
body: <p>I cant seem to find the problem.
  In my Admin::CompetitionsController &lt; ApplicationController I do </p>
  
  <pre><code>  def create
        respond_to do |format|
            if @competition.save(competition_params)
                format.html {
                    flash[:success] =  'Success!'
                    redirect_to competition_path
                }
            else
                format.html {
                    render :action =&gt; 'edit'
                }
            end
        end
    end
  def competition_params
      params.require(:competition).permit(:name, :date, :sex, :category, :country_id, :description, :article, :result)
  end
  </code></pre>
  
  <p>My migration looks like this: </p>
  
  <pre><code>  create_table :competitions do |t|
        t.string :name
        t.date :date
        t.integer :sex
        t.integer :category
        t.integer :country_id
        t.string :article
        t.string :result
        t.string :description
      end
  </code></pre>
  
  <p>And this is my form:</p>
  
  <pre><code>&lt;%= form_for [:admin, @competition], :html =&gt; {:class =&gt; "form"} do |f| %&gt;
      &lt;div class="form-group"&gt;
        &lt;%= f.label :name %&gt;
        &lt;%= f.text_field :name, :class =&gt; 'form-control' %&gt;
      &lt;/div&gt;
  
      &lt;div class="form-group"&gt;
        &lt;%= f.label :date %&gt;
        &lt;%= f.date_select :date, :class =&gt; 'form-control' %&gt;
      &lt;/div&gt;
  
      &lt;div class="form-group"&gt;
        &lt;%= f.label "Gender" %&gt;
        &lt;%= f.select "sex", options_for_select(@sex), :class =&gt; 'form-control' %&gt;
  
        &lt;%= f.label :category %&gt;
        &lt;%= f.select "category", options_for_select(@category), :class =&gt; 'form-control' %&gt;
      &lt;/div&gt;
      &lt;div class="form-group"&gt;
        &lt;%= f.select :country_id, Country.all.collect { |country| [country.name, country.id] },
                     { :prompt =&gt; "Select Country" } %&gt;
      &lt;/div&gt;
  
      &lt;div class="form-group"&gt;
        &lt;%= f.label :description %&gt;
        &lt;%= f.text_area :description, :class =&gt; 'form-control', :rows=&gt;5 %&gt;
      &lt;/div&gt;
  
  
      &lt;div class="form-group"&gt;
        &lt;%= f.label :article %&gt;
        &lt;%= f.text_field :article, :class =&gt; 'form-control' %&gt;
      &lt;/div&gt;
      &lt;div class="form-group"&gt;
        &lt;%= f.label :result %&gt;
        &lt;%= f.text_field :result, :class =&gt; 'form-control' %&gt;
      &lt;/div&gt;
  
  
  
      &lt;%= f.submit :class=&gt;'btn btn-primary'  %&gt;
  &lt;% end %&gt;
  </code></pre>
  
  <p>The request parameters I get:</p>
  
  <pre><code>{"utf8"=&gt;"✓",
   "authenticity_token"=&gt;"hFayDADwjR0ZfhKZfnHKbzJntwDrzHiZ/3H61LcJsEA=",
   "competition"=&gt;{"name"=&gt;"",
   "date(1i)"=&gt;"2013",
   "date(2i)"=&gt;"11",
   "date(3i)"=&gt;"22",
   "sex"=&gt;"1",
   "category"=&gt;"1",
   "country_id"=&gt;"",
   "description"=&gt;"",
   "article"=&gt;"",
   "result"=&gt;""},
   "commit"=&gt;"Create Competition"}
  </code></pre>
  
  <p>And every time I get the ActiveModel::ForbiddenAttributesError. I tried permiting different parameters with no success. I don't know what to try anymore.</p>
  
  <p>The full error page:</p>
  
  <pre><code>ActiveModel::ForbiddenAttributesError in Admin::CompetitionsController#create
  ActiveModel::ForbiddenAttributesError
  
  Rails.root: /home/linux/RubymineProjects/Tabor
  
  Application Trace | Framework Trace | Full Trace
  activemodel (4.0.0) lib/active_model/forbidden_attributes_protection.rb:21:in `sanitize_for_mass_assignment'
  activerecord (4.0.0) lib/active_record/attribute_assignment.rb:21:in `assign_attributes'
  activerecord (4.0.0) lib/active_record/core.rb:192:in `initialize'
  activerecord (4.0.0) lib/active_record/inheritance.rb:27:in `new'
  activerecord (4.0.0) lib/active_record/inheritance.rb:27:in `new'
  cancan (1.6.10) lib/cancan/controller_resource.rb:85:in `build_resource'
  cancan (1.6.10) lib/cancan/controller_resource.rb:66:in `load_resource_instance'
  cancan (1.6.10) lib/cancan/controller_resource.rb:32:in `load_resource'
  cancan (1.6.10) lib/cancan/controller_resource.rb:25:in `load_and_authorize_resource'
  cancan (1.6.10) lib/cancan/controller_resource.rb:10:in `block in add_before_filter'
  activesupport (4.0.0) lib/active_support/callbacks.rb:447:in `_run__2070627161148806707__process_action__callbacks'
  activesupport (4.0.0) lib/active_support/callbacks.rb:80:in `run_callbacks'
  actionpack (4.0.0) lib/abstract_controller/callbacks.rb:17:in `process_action'
  actionpack (4.0.0) lib/action_controller/metal/rescue.rb:29:in `process_action'
  actionpack (4.0.0) lib/action_controller/metal/instrumentation.rb:31:in `block in process_action'
  activesupport (4.0.0) lib/active_support/notifications.rb:159:in `block in instrument'
  activesupport (4.0.0) lib/active_support/notifications/instrumenter.rb:20:in `instrument'
  activesupport (4.0.0) lib/active_support/notifications.rb:159:in `instrument'
  actionpack (4.0.0) lib/action_controller/metal/instrumentation.rb:30:in `process_action'
  actionpack (4.0.0) lib/action_controller/metal/params_wrapper.rb:245:in `process_action'
  activerecord (4.0.0) lib/active_record/railties/controller_runtime.rb:18:in `process_action'
  actionpack (4.0.0) lib/abstract_controller/base.rb:136:in `process'
  actionpack (4.0.0) lib/abstract_controller/rendering.rb:44:in `process'
  actionpack (4.0.0) lib/action_controller/metal.rb:195:in `dispatch'
  actionpack (4.0.0) lib/action_controller/metal/rack_delegation.rb:13:in `dispatch'
  actionpack (4.0.0) lib/action_controller/metal.rb:231:in `block in action'
  actionpack (4.0.0) lib/action_dispatch/routing/route_set.rb:80:in `call'
  actionpack (4.0.0) lib/action_dispatch/routing/route_set.rb:80:in `dispatch'
  actionpack (4.0.0) lib/action_dispatch/routing/route_set.rb:48:in `call'
  actionpack (4.0.0) lib/action_dispatch/journey/router.rb:71:in `block in call'
  actionpack (4.0.0) lib/action_dispatch/journey/router.rb:59:in `each'
  actionpack (4.0.0) lib/action_dispatch/journey/router.rb:59:in `call'
  actionpack (4.0.0) lib/action_dispatch/routing/route_set.rb:655:in `call'
  warden (1.2.3) lib/warden/manager.rb:35:in `block in call'
  warden (1.2.3) lib/warden/manager.rb:34:in `catch'
  warden (1.2.3) lib/warden/manager.rb:34:in `call'
  rack (1.5.2) lib/rack/etag.rb:23:in `call'
  rack (1.5.2) lib/rack/conditionalget.rb:35:in `call'
  rack (1.5.2) lib/rack/head.rb:11:in `call'
  actionpack (4.0.0) lib/action_dispatch/middleware/params_parser.rb:27:in `call'
  actionpack (4.0.0) lib/action_dispatch/middleware/flash.rb:241:in `call'
  rack (1.5.2) lib/rack/session/abstract/id.rb:225:in `context'
  rack (1.5.2) lib/rack/session/abstract/id.rb:220:in `call'
  actionpack (4.0.0) lib/action_dispatch/middleware/cookies.rb:486:in `call'
  activerecord (4.0.0) lib/active_record/query_cache.rb:36:in `call'
  activerecord (4.0.0) lib/active_record/connection_adapters/abstract/connection_pool.rb:626:in `call'
  activerecord (4.0.0) lib/active_record/migration.rb:369:in `call'
  actionpack (4.0.0) lib/action_dispatch/middleware/callbacks.rb:29:in `block in call'
  activesupport (4.0.0) lib/active_support/callbacks.rb:373:in `_run__3850854791608649842__call__callbacks'
  activesupport (4.0.0) lib/active_support/callbacks.rb:80:in `run_callbacks'
  actionpack (4.0.0) lib/action_dispatch/middleware/callbacks.rb:27:in `call'
  actionpack (4.0.0) lib/action_dispatch/middleware/reloader.rb:64:in `call'
  actionpack (4.0.0) lib/action_dispatch/middleware/remote_ip.rb:76:in `call'
  actionpack (4.0.0) lib/action_dispatch/middleware/debug_exceptions.rb:17:in `call'
  actionpack (4.0.0) lib/action_dispatch/middleware/show_exceptions.rb:30:in `call'
  railties (4.0.0) lib/rails/rack/logger.rb:38:in `call_app'
  railties (4.0.0) lib/rails/rack/logger.rb:21:in `block in call'
  activesupport (4.0.0) lib/active_support/tagged_logging.rb:67:in `block in tagged'
  activesupport (4.0.0) lib/active_support/tagged_logging.rb:25:in `tagged'
  activesupport (4.0.0) lib/active_support/tagged_logging.rb:67:in `tagged'
  railties (4.0.0) lib/rails/rack/logger.rb:21:in `call'
  actionpack (4.0.0) lib/action_dispatch/middleware/request_id.rb:21:in `call'
  rack (1.5.2) lib/rack/methodoverride.rb:21:in `call'
  rack (1.5.2) lib/rack/runtime.rb:17:in `call'
  activesupport (4.0.0) lib/active_support/cache/strategy/local_cache.rb:83:in `call'
  rack (1.5.2) lib/rack/lock.rb:17:in `call'
  actionpack (4.0.0) lib/action_dispatch/middleware/static.rb:64:in `call'
  railties (4.0.0) lib/rails/engine.rb:511:in `call'
  railties (4.0.0) lib/rails/application.rb:97:in `call'
  rack (1.5.2) lib/rack/lock.rb:17:in `call'
  rack (1.5.2) lib/rack/content_length.rb:14:in `call'
  rack (1.5.2) lib/rack/handler/webrick.rb:60:in `service'
  /home/linux/.rvm/rubies/ruby-2.1.0-preview1/lib/ruby/2.1.0/webrick/httpserver.rb:138:in `service'
  /home/linux/.rvm/rubies/ruby-2.1.0-preview1/lib/ruby/2.1.0/webrick/httpserver.rb:94:in `run'
  /home/linux/.rvm/rubies/ruby-2.1.0-preview1/lib/ruby/2.1.0/webrick/server.rb:295:in `block in start_thread'
  Request
  
  Parameters:
  
  {"utf8"=&gt;"✓",
   "authenticity_token"=&gt;"N8DJKWtnMtunizyY4oGBuGNiL9UNIc63sM2PHWxpXtY=",
   "competition"=&gt;{"name"=&gt;"",
   "date(1i)"=&gt;"2013",
   "date(2i)"=&gt;"11",
   "date(3i)"=&gt;"22",
   "sex"=&gt;"1",
   "category"=&gt;"1",
   "country_id"=&gt;"",
   "description"=&gt;"",
   "article"=&gt;"",
   "result"=&gt;""},
   "commit"=&gt;"Create Competition"}
  
  Toggle session dump
  _csrf_token: "N8DJKWtnMtunizyY4oGBuGNiL9UNIc63sM2PHWxpXtY="
  session_id: "116666f7d0e5494da6a99d481c7e8cc8"
  warden.user.user.key: [[1], "$2a$10$oe41UVUa5llNALpv5gIeXu"]
  
  Toggle env dump
  GATEWAY_INTERFACE: "CGI/1.1"
  HTTP_ACCEPT: "text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8"
  HTTP_ACCEPT_ENCODING: "gzip,deflate,sdch"
  HTTP_ACCEPT_LANGUAGE: "sl-SI,sl;q=0.8,en-GB;q=0.6,en;q=0.4"
  REMOTE_ADDR: "127.0.0.1"
  REMOTE_HOST: "127.0.0.1"
  SERVER_NAME: "0.0.0.0"
  SERVER_PROTOCOL: "HTTP/1.1"
  </code></pre>