关于ruby教程的form

关于ruby教程的form_for问题(Issues with form_for following ruby tutorial)

下午好，

我开始使用rails并且正在关注http://guides.rubyonrails.org/getting_started.html上的指南。我似乎遇到了障碍。

当我尝试使用form_for帮助器传递一个数组作为参数时（如指南第6.4节所述）我得到以下错误

显示第11行引发的[MyPath] /app/views/posts/show.html.erb：

[MyPath] /app/models/comment.rb:3：语法错误，意外的keyword_end ,? 期待美元结束

正在呈现的视图的代码是

Title: <%= @post.title %> Text: <%= @post.text %> <%= form_for([@post, @post.comments.build]) do |f| %> <%= f.label :commenter %> <%= f.text_field :commenter %> <%= f.label :body %> <%= f.text_area :body %> <%= f.submit %> <% end %> <%= link_to 'Back', posts_path %> | <%= link_to 'Edit', edit_post_path(@post) %>

这就是帖子模型的样子

class Post < ActiveRecord::Base has_many :comments validates :title, presence: true, length: { minimum: 5 } end

这就是评论模型的样子

Class Comment < ActiveRecord::Base belongs_to :post end

可能导致此问题的原因是什么？ “结束”标签似乎正确匹配。

仅供参考，以备必要时使用

红宝石-v

ruby 1.9.3p429（2013-05-15修订版40747）[x86_64-darwin12.3.0]

rails -v

Rails 4.0.0

谢谢你的帮助。我不确定是否需要更多信息，但请随时告诉我。

Good afternoon,

I'm starting out with rails and as I'm following the guide at http://guides.rubyonrails.org/getting_started.html I seem to have hit a roadblock.

When I try to use the form_for helper passing an array as a parameter (as explained in section 6.4 of the guide) I get the following error

Showing [MyPath]/app/views/posts/show.html.erb where line #11 raised:

[MyPath]/app/models/comment.rb:3: syntax error, unexpected keyword_end, ? expecting $end

The code of the view that is being rendered is

Title: <%= @post.title %> Text: <%= @post.text %> <%= form_for([@post, @post.comments.build]) do |f| %> <%= f.label :commenter %> <%= f.text_field :commenter %> <%= f.label :body %> <%= f.text_area :body %> <%= f.submit %> <% end %> <%= link_to 'Back', posts_path %> | <%= link_to 'Edit', edit_post_path(@post) %>

This is what the post model looks like

class Post < ActiveRecord::Base has_many :comments validates :title, presence: true, length: { minimum: 5 } end

and this is what the comment model looks like

Class Comment < ActiveRecord::Base belongs_to :post end

What could be causing this issue? The "End" tags seem to match up properly.

Just for extra info, in case it is necessary

ruby -v

ruby 1.9.3p429 (2013-05-15 revision 40747) [x86_64-darwin12.3.0]

rails -v

Rails 4.0.0

Thanks for any help. I'm not sure if more information is needed but please feel free to let me know.