我正在浏览此Blogger教程http://tutorials.jumpstartlab.com/projects/blogger.html#i3:-tagging
并且我继续进行"时间与零的比较失败"添加
时出错<p>Posted <%=distance_of_time_in_words(comment.article.created_at, comment.created_at) %> later<p>
至我的评论部分(_comments.html.erb)
这是我的架构
ActiveRecord::Schema.define(version: 20140618233420) do
create_table "articles", force: true do |t|
t.string "title"
t.string "body"
t.datetime "created_at"
t.datetime "updated_at"
end
create_table "comments", force: true do |t|
t.string "author_name"
t.text "body"
t.integer "article_id"
t.datetime "created_at"
t.datetime "updated_at"
end
add_index "comments", ["article_id"], name: "index_comments_on_article_id"
end
有人可以解释一下吗?我的rails服务器指示注释和文章都有时间戳,所以它们如何显示为nil?
以下是我的_comment.html.erb文件中的完整代码
<div>
<h4>Comment by <%= comment.author_name %></h4>
<p class="comment"><%= comment.body %></p>
<p>Posted <%=distance_of_time_in_words(comment.article.created_at, comment.created_at) %> later<p>
</div>
这是我的控制器代码:
class CommentsController < ApplicationController
def create
@comment = Comment.new(comment_params)
@comment.article_id = params[:article_id]
@comment.save
redirect_to article_path(@comment.article)
end
def comment_params
params.require(:comment).permit(:author_name, :body)
end
end
答案 0 :(得分:0)
确保代码中包含此内容:
<%= render partial: 'articles/comment', collection: @article.comments %>
<强> /models/comment.rb 强>
class Comment < ActiveRecord::Base
belongs_to :article
end