评论和投票的路线 [英] Routes on comments and votes
问题描述
我有两个模型可以评论,书籍和电影.
I have two models that can be commented on, Books and Movies.
评论是可以投票的
在我的路由文件中:
resources :books, :path => '' do
resources :comments do
member do
post :vote_up
end
end
在我的评论控制器中:
class CommentsController < ApplicationController
def create
book.comments.create(new_comment_params) do |comment|
comment.user = current_user
end
redirect_to book_path(book)
end
private
def new_comment_params
params.require(:comment).permit(:body)
end
def book
@book = Book.find(params[:book_id])
end
def vote_up
begin
current_user.vote_for(@comment = Comment.find(params[:id]))
render :nothing => true, :status => 200
rescue ActiveRecord::RecordInvalid
render :nothing => true, :status => 404
end
end
end
在我看来:
<%= link_to('vote for this post!', vote_up_book_comment_path(comment),
:method => :post) %>
我不断收到此错误:
No route matches {:action=>"vote_up", :controller=>"comments", :id=>nil, :book_id=>#<Comment id:
3, body: "fantastic read!", book_id: 113, created_at: "2014-02-15 17:08:10", updated_at:
"2014-02-15 17:08:10", user_id: 8>, :format=>nil} missing required keys: [:id]
这是我用于投票的 gem:https://github.com/bouchard/thumbs_up一个>
This is the gem I am using for the voting: https://github.com/bouchard/thumbs_up
评论可以属于书籍或电影,我如何在路由中设置?另外,如何在路线中设置投票?(所有评论都是可投票的)
The comments can belong to either the books or movies, how do I set this up in the routes? Also, how do I set up the votes in the routes? (all the comments are votable)
推荐答案
如果您运行 rake routes
,您可能会在输出中看到如下一行:
If you run rake routes
, you'll probably get a line in the output that reads like this:
vote_up_book_comment POST /:book_id/comments/:id/vote_up(.:format) comments#vote_up
特别注意这部分——它告诉你 vote_up_book_comment_path
方法期望什么作为参数:
Pay special attention to this part — it's telling you what the vote_up_book_comment_path
method expects as arguments:
/:book_id/comments/:id/vote_up(.:format)
此外,您的错误消息也给了您一些提示:
Also, your error message is giving you a few hints:
No route matches ...
:id=>nil, :book_id=>#<Comment id: 3 ...
missing required keys: [:id]
路径助手需要一个 id(用于评论)和一个 book_id,它们的顺序显示在 rake routes
(首先是 book_id,然后是 id).
The path helper expects an id (for the comment) and a book_id, and the order in which they are required is shown in rake routes
(book_id first, then id).
所以,总而言之,您需要将 book
传递给 vote_up_book_comment_path
:
So, in sum, you need to pass a book
to vote_up_book_comment_path
:
<%= link_to('vote for this post!', vote_up_book_comment_path(@book, comment), :method => :post) %>
这篇关于评论和投票的路线的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持IT屋!