Hello,
I’ve been trying to solve this issue for a few hours and couldn’t find
similar issues by googling. I am very new to Rails. After completing all
the steps of “6 Adding a Second Model”, I run into the following error
at
localhost:3000/articles/1/comments
Routing Error
undefined local variable or method ` ’ for CommentsController:Class
app/controllers/comments_controller.rb:7:in `class:CommentsController’
http://localhost:3000/articles/5/comments#
app/controllers/comments_controller.rb:1:in `<top (required)>’
http://localhost:3000/articles/5/comments#
The error occurs after clicking “Create Comment”. I triple checked the
guide to ensure I copy and pasted everything properly and followed every
step but I still cannot figure it out. Since this appears to be a
routing issue I pasted all code relevant to routing below. Hopefully
I’ve provided enough information. Thank you.
routes.rb
Rails.application.routes.draw do
resources :articles do
resources :comments
end
get ‘articles/index’
get ‘welcome/index’
root ‘welcome#index’
end
show.html.erb
Title: <%= @article.title %>
Text: <%= @article.text %>
Comments
<% @article.comments.each do |comment| %>Commenter: <%= comment.commenter %>
Comment: <%= comment.body %>
<% end %>Add a comment:
<%= form_for([@article, @article.comments.build]) do |f| %>
<%= f.label :commenter %>
<%= f.text_field :commenter %>
<%= f.label :body %>
<%= f.text_area :body %>
<%= f.submit %>
<% end %><%= link_to ‘Edit’, edit_article_path(@article) %> |
<%= link_to ‘Back’, articles_path %>
articles_controller.rb
class ArticlesController < ApplicationController
def index
@articles = Article.all
end
def show
@article = Article.find(params[:id])
end
def new
@article = Article.new
end
def edit
@article = Article.find(params[:id])
end
def create
@article = Article.new(article_params)
if @article.save
redirect_to @article
else
render 'new'
end
end
def update
@article = Article.find(params[:id])
if @article.update(article_params)
redirect_to @article
else
render 'edit'
end
end
def destroy
@article = Article.find(params[:id])
@article.destroy
redirect_to articles_path
end
private
def article_params
params.require(:article).permit(:title, :text)
end
end
comments_controller.rb
class CommentsController < ApplicationController
def create
@article = Article.find(params[:article_id])
@comment = @article.comments.create(comment_params)
redirect_to article_path(@article)
end
private
def comment_params
params.require(:comment).permit(:commenter, :body)
end
end
article.rb
class Article < ActiveRecord::Base
has_many :comments
validates :title, presence: true,
length: {minimum: 5}
end
comment.rb
class Comment < ActiveRecord::Base
belongs_to :article
end