评论我的reddit克隆人ruby拉一个NameError
评论我的reddit克隆人ruby拉一个NameError
提问于 2014-12-13 14:30:15
我正在尝试添加Reddit克隆的评论功能。这是注释控制器，它创建注释并将其添加到post中。
class CommentsController < ApplicationController
def new
@topic = Topic.find(params[:topic_id])
@post = Post.find(params[:id])
@comment = Comment.new
#authorize @comment # from include Pundit in the application controller, authorize is an inherited method
end
def create
@topic = Topic.find(params[:topic_id])
@post = Post.find(params[:id])
@comment = current_user.comments.build(comment_params)
end
private
def comment_params
params.require(:comment).permit(:text)
end
end我试图为每个贴子页面添加一个注释字段，方法是使用一个类似于以下内容的表单分部：
<%= form_for [topic, post] do |f| %>
<%= form_group_tag(comment[:text]) do %>
<%= f.label :text %>
<%= f.text_area :text, rows: 10, class: 'form-control', placeholder: "Enter your comment" %>
<% end %>
<div class = "form-group">
<%= f.submit "Save", class: 'btn btn-success' %>
</div>
<% end %>这个表单分部应该出现在post.show.html.erb中，所以我把它放在那里
<h1><%= markdown @post.title %></h1>
<div class="row"> <!-- what others are there besides row? -->
<div class="col-md-8">
<p><%= markdown @post.body %></p>
</div>
<div class="col-md-4">
<% if policy(@post).edit? %>
<%= link_to "Edit", edit_topic_post_path(@topic, @post), class: 'btn btn-success' %>
<% end %>
</div>
<div class="col-md-8">
<%= render partial: 'comments/form', locals: { topic: @topic, post: @post, text: @post.comments.new } %>
</div>
</div>但我在form_group_tag上的“评论”得到了一个form_group_tag。我在这里定义的大部分内容来自于我添加新帖子的代码，这似乎是可行的。这里缺少什么东西吗？
我通过向form_for行添加注释来修正我的名字错误，但是我得到了主题、帖子、评论路径的NoMethodError，所以我认为添加rake路由会有帮助。
new_user_session GET /users/sign_in(.:format) devise/sessions#new
user_session POST /users/sign_in(.:format) devise/sessions#create
destroy_user_session DELETE /users/sign_out(.:format) devise/sessions#destroy
user_password POST /users/password(.:format) devise/passwords#create
new_user_password GET /users/password/new(.:format) devise/passwords#new
edit_user_password GET /users/password/edit(.:format) devise/passwords#edit
PATCH /users/password(.:format) devise/passwords#update
PUT /users/password(.:format) devise/passwords#update
cancel_user_registration GET /users/cancel(.:format) devise/registrations#cancel
user_registration POST /users(.:format) devise/registrations#create
new_user_registration GET /users/sign_up(.:format) devise/registrations#new
edit_user_registration GET /users/edit(.:format) devise/registrations#edit
PATCH /users(.:format) devise/registrations#update
PUT /users(.:format) devise/registrations#update
DELETE /users(.:format) devise/registrations#destroy
user_confirmation POST /users/confirmation(.:format) devise/confirmations#create
new_user_confirmation GET /users/confirmation/new(.:format) devise/confirmations#new
GET /users/confirmation(.:format) devise/confirmations#show
user PATCH /users/:id(.:format) users#update
PUT /users/:id(.:format) users#update
topic_posts POST /topics/:topic_id/posts(.:format) posts#create
new_topic_post GET /topics/:topic_id/posts/new(.:format) posts#new
edit_topic_post GET /topics/:topic_id/posts/:id/edit(.:format) posts#edit
topic_post GET /topics/:topic_id/posts/:id(.:format) posts#show
PATCH /topics/:topic_id/posts/:id(.:format) posts#update
PUT /topics/:topic_id/posts/:id(.:format) posts#update
DELETE /topics/:topic_id/posts/:id(.:format) posts#destroy
topics GET /topics(.:format) topics#index
POST /topics(.:format) topics#create
new_topic GET /topics/new(.:format) topics#new
edit_topic GET /topics/:id/edit(.:format) topics#edit
topic GET /topics/:id(.:format) topics#show
PATCH /topics/:id(.:format) topics#update
PUT /topics/:id(.:format) topics#update
DELETE /topics/:id(.:format) topics#destroy
post_comments POST /posts/:post_id/comments(.:format) comments#create
posts GET /posts(.:format) posts#index
POST /posts(.:format) posts#create
new_post GET /posts/new(.:format) posts#new
edit_post GET /posts/:id/edit(.:format) posts#edit
post GET /posts/:id(.:format) posts#show
PATCH /posts/:id(.:format) posts#update
PUT /posts/:id(.:format) posts#update
DELETE /posts/:id(.:format) posts#destroy
about GET /about(.:format) welcome#about
root GET / welcome#index顺便说一句:这个routes.rb文件看上去怎么样？
Rails.application.routes.draw do
devise_for :users
resources :users, only: [:update]
resources :topics do
resources :posts, except: [:index]
end
resources :posts do
resources :comments, only: [:create]
end
end回答 2
Stack Overflow用户
回答已采纳
发布于 2014-12-13 14:46:53
尝试：
<%= render partial: 'comments/form', locals: { topic: @topic, post: @post, comment: @post.comments.new } %>
...
<%= form_for [post, comment] do |f| %>
<%= f.label :text %>
<%= f.text_area :text, rows: 10, class: 'form-control', placeholder: "Enter your comment" %>
<%= f.submit "Save", class: 'btn btn-success' %>
<% end %>
...如果没有帮助，请尝试临时注释form_group_tag并在这里发送错误
Stack Overflow用户
发布于 2014-12-13 14:33:40
似乎您正在将comment发送到text的部分。
... locals: { topic: @topic, post: @post, text: @post.comments.new } %>
^^^^顺便说一句，您没有在create操作中保存注释。
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原文链接：
https://stackoverflow.com/questions/27459876
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