rails嵌套形式的路由错误

Question

我目前正在处理我的项目，但遇到了一些挑战。我有一个项目模型，其中嵌套了评论对象我可以创建一个新评论，但是当我尝试编辑与项目对象关联的评论时，我在浏览器中收到这个奇怪的错误，表明我正在尝试编辑评论属于一个不存在的项目。实际上，当我检查 url 时，项目的 id 并不存在。例如，如果我想编辑属于 id 为 1 的项目的评论，错误消息表明我想编辑属于 id 为 2 的项目的评论。我已经尝试了所有我知道的但不能没有找到问题的根源。 这就是我的评论控制器的样子

[8:04] 类 CommentsController

def index
    @projects = Project.all
    if params[:project_id]
      @comments = @project.comments.all
      redirect_to @comments
    end
  end



 def new
    if params[:project_id]
    @project = Project.find(params[:project_id])
    @comment = @project.comments.build
    end
  end

 def create
  if params[:project_id]
   @project = Project.find(params[:project_id])

   @comment = @project.comments.create(comment_params)
    if @comment.save
      redirect_to @comment
    else
      render "new"
    end
   end
  end

 def show
    if params[:project_id]
    @project = Project.find_by(:id => params[:id])
    @comment = @project.comments.find_by(:id => params[:id])

 end
end

 def edit
    if params[:project_id]
    @comment = @project.comments.find_by(:id => params[:id])
  end
 end

 def update
    if params[:project_id]
    @comment = @project.comments.find_by(:id => params[:id])
    @comment.update(comment_params)
      redirect_to @comment

     render "edit", notice: "You cannot update the comment"
    end
  end

 def destroy
    @comment = @project.comments.find_by(:id => params[:id])
    @comment.destroy
    flash[:notice] = "Comment has been successfully deleted"
    redirect_to @project
  end

 private

  def find_project
    @project = Project.find_by(id: params[:project_id])
  end

  def comment_params
    params.require(:comment).permit(:content, :project_id)
  end

end

Answer 1

在您的 show 方法中，您使用 params[:id] 作为 project_id

@project = Project.find_by(:id => params[:id])

试试改成

 @project = Project.find_by(:id => params[:project_id])