Rails unable to upload file using paperclip -

i following tutorial

trying upload file using paperclip gem ..when try upload file error method not allowed thats why assets table blank no data inserting

[asset.rb]

class asset < activerecord::base     belongs_to :user     has_attached_file :uploaded_file      validates_attachment_size :uploaded_file, :less_than => 10.megabytes        validates_attachment_presence :uploaded_file     def file_name      uploaded_file_file_name  end  def file_size      uploaded_file_file_size  end end 

[user.rb]

class user < activerecord::base   # include default devise modules. others available are:   # :confirmable, :lockable, :timeoutable , :omniauthable   devise :database_authenticatable, :registerable,          :recoverable, :rememberable, :trackable, :validatable      validates :email, :presence => true, :uniqueness => true      has_many :assets    end 

[assets_controller]

class assetscontroller < applicationcontroller         before_filter :authenticate_user!  #authenticate users before methods called          def index          @assets = current_user.assets           end        def show          @asset = current_user.assets.find(params[:id])        end        def new         @asset = current_user.assets.new       end        def create          @asset = current_user.assets.new(user_assets)          if @asset.save            flash[:notice] = "successfully uploaded file."         else            render :action => 'new'         end        end        def edit          @asset = current_user.assets.find(params[:id])        end        def update          @asset = current_user.assets.find(params[:id])         end        def destroy          @asset = current_user.assets.find(params[:id])         end       private         def user_assets              params.require(:asset).permit(:user_id, :uploaded_file)         end      end     <br> 

[assets/_form.html.erb]

<%= form_for @asset, :html => {:multipart => true} |f| %>    <%= f.error_messages %>       <p>          <%= f.label :uploaded_file, "file" %><br />          <%= f.file_field :uploaded_file %>        </p>    <p><%= f.submit "upload" %></p>  <% end %> 

[assets/new.html.erb]

<% title "upload file" %>   <%= render 'form' %>   <p>     <%= link_to "back", root_url %>  </p> 

3[migration]

class createassets < activerecord::migration   def change     create_table :assets |t|            t.integer :user_id            t.timestamps     end     add_index :assets, :user_id   end end 

4[migration]

class addattachmentuploadedfiletoassets < activerecord::migration   def change     change_table :assets |t|         add_column :assets, :uploaded_file_file_name, :string         add_column :assets, :uploaded_file_content_type, :string         add_column :assets, :uploaded_file_file_size, :integer         add_column :assets, :uploaded_file_updated_at, :datetime     end   end   end 

]4

the problem op referencing /assets reserved rails public path.

the solution therefore change at least routes other /assets; model can remain controller have change too:

#config/routes.rb resources :assets, path: "asset", only: [:new, :create] #-> url.com/asset/new