Rails MVC 和 CRUD(11)

[root@h202 blog]# vim app/models/article.rb
[root@h202 blog]# cat app/models/article.rb
class Article < ActiveRecord::Base
  validates :title, presence: true, length: { minimum: 5 }
end
[root@h202 blog]# vim app/controllers/articles_controller.rb 
[root@h202 blog]# cat app/controllers/articles_controller.rb 
class ArticlesController < ApplicationController
  def new
    @article = Article.new
  end
  def create
#    render plain: params[:article].inspect
#    @article = Article.new(params[:article])
     @article = Article.new(article_params)
     
     if @article.save
       redirect_to @article
     else
       render 'new'
     end
  end
  def show
    @article = Article.find(params[:id])
  end
  def index
    @articles = Article.all
  end
  private
    def article_params
        params.require(:article).permit(:title,:text)
    end
end
[root@h202 blog]# vim app/views/articles/new.html.erb 
[root@h202 blog]# cat app/views/articles/new.html.erb 
<h1>Test blog http://soft.dog/</h1>

<%= form_for :article, url: articles_path do |f| %>

 <% if @article.errors.any? %>
  <div id="error_explanation">
    <h2><%= pluralize(@article.errors.count, "error") %> prohibited
      this article from being saved:</h2>
    <ul>
    <% @article.errors.full_messages.each do |msg| %>
      <li><%= msg %></li>
    <% end %>
    </ul>
  </div>
  <% end %>


  <p>
    <%= f.label :title %><br>
    <%= f.text_field :title %>
  </p>
 
  <p>
    <%= f.label :text %><br>
    <%= f.text_area :text %>
  </p>
 
  <p>
    <%= f.submit %>
  </p>
<% end %>

 
<%= link_to 'Back', articles_path %>
[root@h202 blog]#