Formtastic undefined方法

Question

我正在使用ruby 1.8.7和rails 3.2.13。我想用formtastic创建一个表单。我一直收到错误“NilClass：Class的未定义方法`model_name'”。以下是我的控制器，路线和索引：

App_pages_controller.rb：

class AppPagesController < ApplicationController
  def index
  end

  def new
    @person = Person.new
  end

  def create
    @person = Person.new(params[:person])
    if @person.save
        redirect_to new_student_path
    end
  end

  def registration
  end

  def unknown
  end
end

routes.rb中：

WyspApp::Application.routes.draw do
  resources :persons

  match '/registration', :to => 'App_pages#registration'

  match '/unknown', :to => 'App_pages#unknown'

  match '/index', :to => 'App_pages#index'

   root :to => 'App_pages#index'

index.html.erb

<%= semantic_form_for @person do |form| %>
<%= form.inputs do %>
<%= form.input :name %>
<%= form.input :born_on, :start_year => 1997 %>
<%= form.input :description, :as => :text %>
<%= form.input :female, :as => :radio, :label => "Gender", :collection => [["Male", false], ["Female", true]] %>
<% end %>
<%= form.actions do %>
<%= form.action :submit, :as => :button %>
<% end %>
<% end %>

非常感谢任何帮助！提前谢谢！

Answer 1

我实际上忘了创建一个模型......对于其他任何错误，请确保为您引用的任何对象创建模型...