Question

尝试edit Article时收到错误消息。这是我的错误：

ActiveRecord::RecordNotFound in ArticlesController#edit

articles.controller.rb

class ArticlesController < ApplicationController

  def new
   @article = Article.new
  end

  def edit
   @article = Article.find(params[:id])
  end

  def create
   @article = Article.new(article_params)
   if @article.save
     flash[:notice] = "Article was successfully created"
     redirect_to article_path(@article)
   else
     render 'new'
   end
  end

 def update
  @article = Article.find(params[:id])
  if @article.update
    flash[:notice] = "Article was successfully updated"
    redirect_to article_path(@article)
  else
    render 'edit'
  end
 end

 def show
  @article = Article.find(params[:id])
 end

Answer 1

您需要将@article传递到网址中。你应该有一个类似这样的网址：

<%= link_to "Edit Article", edit_article_path(@article) %>

另外请务必检查您的数据库并确保Article实际上正在保存。我没有看到您的article_params，但我认为它们的定义是您在create方法中使用它们。

您的 routes.rb 看起来像这样：

Rails.application.routes.draw do
  resources :articles
end

在ArticlesController＃edit中的ActiveRecord :: RecordNotFound

1 个答案: