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运行应用程序时,我跑我的应用程序我得到这个错误 :我有一个云端9错误,而在云9
(NoMethodError in Articles#new
Showing /home/ubuntu/workspace/yappy/qaucky/app/views/articles/new.html.erb where line #3 raised:
undefined method `model_name' for #<Article:0x007ff8e20e4b50>
提取的源(左右线#3):
<h1>Create an article</h1>
<%= form_for @article do |f| %>
<% end %>
这是图像(https://i.stack.imgur.com/kghdF.png)
Rails.root:/家庭/ ubuntu的/工作区/ yappy/qaucky)
个资源:文章
root 'pages#home'
get 'about', to: 'pages#about'
我new.html.erb文件:
<h1>Create an article</h1>
<%= form_for @article do |f| %>
<% end %>
我的文章控制器文件: 类ArticlesController < ApplicationController的
def new
@article = Article.new
end
end
我article.rb文件:
class Article
end
我的routes.rb文件:
Rails.application.routes.draw do
# The priority is based upon order of creation: first created -> highest
priority.
# See how all your routes lay out with "rake routes".
# You can have the root of your site routed with "root"
# root 'welcome#index'
resources :articles
root 'pages#home'
get 'about', to: 'pages#about'
# Example of regular route:
# get 'products/:id' => 'catalog#view'
我得到一个错误,指出:#新 找不到表“文章”这是给我看我的文章控制器文件 的ActiveRecord :: StatementInvalid在ArticlesController:类ArticlesController
错误消息'找不到表“articles''是相当具体。没有数据库表来存储您使用表单创建的文章。只需创建一个数据库迁移,添加所需的表和列并运行它。请参阅[关于迁移的Rails指南](http://edgeguides.rubyonrails.org/active_record_migrations.html)。 – spickermann
我想从用户界面的文章将这仍然工作 –