Rails 构建评论功能（11）

对评论的删除加入基础认证

[root@h202 blog]# vim app/controllers/comments_controller.rb 
[root@h202 blog]# cat app/controllers/comments_controller.rb 
class CommentsController < ApplicationController
###basic auth
  http_basic_authenticate_with name: "soft", password: "dog", only: :destroy
  
  def create
    @article = Article.find(params[:article_id])
    @comment = @article.comments.create(comment_params)
    redirect_to article_path(@article)
  end
 
  def destroy
    @article = Article.find(params[:article_id])
    @comment = @article.comments.find(params[:id])
    @comment.destroy
    redirect_to article_path(@article)
  end

  private
    def comment_params
      params.require(:comment).permit(:commenter, :body)
    end
end
[root@h202 blog]#  head -n 4 app/controllers/comments_controller.rb
class CommentsController < ApplicationController
###basic auth
  http_basic_authenticate_with name: "soft", password: "dog", only: :destroy
  
[root@h202 blog]# 

这时直接添加或修改文章和删除评论都会触发认证

rails37.png

致此，一个可以进行文章增删改查，增减评论，又有基本认证的简单博客系统就搭建起来了

虽然这只是一个小小的demo，但不得不说，ruby on rails 的开发效率是很高效的，原因是大部分本来需要手动完成的事情，这个框架已经帮忙自动完成了，我们需要做的只剩下去填补最基本的对象定义，逻辑关系，展示方式

这个流程是绝大多数管理后台的开发过程，使用rails，竟然只用两篇博客就讲清楚了

命令汇总

• ruby -v
• gem -v
• rails --version
• node -v
• rvm -v
• rails server -b 0.0.0.0
• rails --help
• rails generate model Comment commenter:string body:text
• rails destroy model Comment
• rails generate model Comment commenter:string body:text article:references
• cat db/migrate/20160427082552_create_comments.rb
• cat app/models/comment.rb
• cat test/models/comment_test.rb
• cat test/fixtures/comments.yml
• rake db:migrate
• cat app/models/article.rb
• vim config/routes.rb
• grep -v " #" config/routes.rb | grep -v "^$"
• rails generate controller Comments
• cat app/controllers/comments_controller.rb
• cat app/views/comments
• cat test/controllers/comments_controller_test.rb
• cat app/helpers/comments_helper.rb
• cat app/assets/javascripts/comments.coffee
• cat app/assets/stylesheets/comments.scss
• cat app/views/articles/show.html.erb
• cat app/controllers/comments_controller.rb
• cat app/views/articles/show.html.erb
• cat app/views/comments/_comment.html.erb
• cat app/views/articles/show.html.erb
• cat app/views/comments/_form.html.erb
• cat app/views/articles/show.html.erb
• cat app/views/comments/_comment.html.erb
• cat app/controllers/comments_controller.rb
• cat app/models/article.rb
• cat app/controllers/articles_controller.rb
• head -n 4 app/controllers/articles_controller.rb
• cat app/controllers/comments_controller.rb
• head -n 4 app/controllers/comments_controller.rb

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