Rails 构建评论功能（5）

[root@h202 blog]# vim app/views/articles/show.html.erb 
[root@h202 blog]# cat app/views/articles/show.html.erb 
<p>
  <strong>Title:</strong>
  <%= @article.title %>
</p>
 
<p>
  <strong>Text:</strong>
  <%= @article.text %>
</p>

<h2>Add a comment:</h2>
<%= form_for([@article, @article.comments.build]) do |f| %>
  <p>
    <%= f.label :commenter %><br>
    <%= f.text_field :commenter %>
  </p>
  <p>
    <%= f.label :body %><br>
    <%= f.text_area :body %>
  </p>
  <p>
    <%= f.submit %>
  </p>
<% end %>


<%= link_to 'Back', articles_path %>
| <%= link_to 'Edit', edit_article_path(@article) %>
[root@h202 blog]# 
[root@h202 blog]# vim app/controllers/comments_controller.rb 
[root@h202 blog]# cat app/controllers/comments_controller.rb 
class CommentsController < ApplicationController
  def create
    @article = Article.find(params[:article_id])
    @comment = @article.comments.create(comment_params)
    redirect_to article_path(@article)
  end
 
  private
    def comment_params
      params.require(:comment).permit(:commenter, :body)
    end
end
[root@h202 blog]# vim app/views/articles/show.html.erb 
[root@h202 blog]# cat app/views/articles/show.html.erb 
<p>
  <strong>Title:</strong>
  <%= @article.title %>
</p>
 
<p>
  <strong>Text:</strong>
  <%= @article.text %>
</p>

<h2>Comments</h2>
<% @article.comments.each do |comment| %>
  <p>
    <strong>Commenter:</strong>
    <%= comment.commenter %>
  </p>
 
  <p>
    <strong>Comment:</strong>
    <%= comment.body %>
  </p>
<% end %>


<h2>Add a comment:</h2>
<%= form_for([@article, @article.comments.build]) do |f| %>
  <p>
    <%= f.label :commenter %><br>
    <%= f.text_field :commenter %>
  </p>
  <p>
    <%= f.label :body %><br>
    <%= f.text_area :body %>
  </p>
  <p>
    <%= f.submit %>
  </p>
<% end %>


<%= link_to 'Back', articles_path %>
| <%= link_to 'Edit', edit_article_path(@article) %>
[root@h202 blog]#