[Rails] Err in Documentation

You forgot to update Strong params in section 6.4 (deleting comments)  http://guides.rubyonrails.org/getting_started.html

This is your final code:

class CommentsController < ApplicationController     def create     @post = Post.find(params[:post_id])     @comment = @post.comments.create(params[:comment])     redirect_to post_path(@post)   end     def destroy     @post = Post.find(params[:post_id])     @comment = @post.comments.find(params[:id])     @comment.destroy     redirect_to post_path(@post)   end   end

It should be:

class CommentsController < ApplicationController     def create     @post = Post.find(params[:post_id])     @comment = @post.comments.create(params[:comment].permit(:commenter, :body))     redirect_to post_path(@post)   end     def destroy     @post = Post.find(params[:post_id])     @comment = @post.comments.find(params[:id])     @comment.destroy     redirect_to post_path(@post)   end   end

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