未定义的方法许可

Question

我正在练习rails guide中的帖子。在评论控制器中，我这样写，但它出现了错误

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
end

Answer 1

我建议您跟进此guide

这应该有效：

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