新手求助 view 问题

holybible_2012 — Wed, 10 Dec 2014 19:45:53 +0800

出错信息如下 undefined method `name' for nil:NilClass

Extracted source (around line #26):

<% if !@article.comments.nil? %> <% @article.comments.each do |comment| %>

<%= link_to comment.author.name, user_path(comment.author) %>:<%= comment.content %>

<% end %> <% end %>

但是我在 model 中有写 class Comment < ActiveRecord::Base belongs_to :article belongs_to :author, class_name: "User", foreign_key: "user_id" end

`class Article < ActiveRecord::Base belongs_to :owner, class_name: "User", foreign_key: "user_id" belongs_to :sub_category has_many :comments

attr_accessor :document end`

`class User < ActiveRecord::Base has_many :articles has_many :comments

has_secure_password end` 能指点下可能出错的原因吗

holybible_2012