没有ArticlesController#show中的ActiveRecord :: RecordNotFound找不到没有ID的文章 [英] ActiveRecord::RecordNotFound in ArticlesController#show Couldn't find Article without an ID

问题描述

我正在尝试向db提交一些数据，但可以，但是当我尝试检索这些数据时，显示没有ID.ils 4.0.1的找不到Article. 我正在使用ruby 2.0.0和ra

I am trying to submit some data to db and its ok but when i am trying to retrieve those data show that Couldn't find Article without an ID.ils 4.0.1. I am using ruby 2.0.0 and ra

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

结束

the ** contain error. 

class ArticlesController < ApplicationController
  def new
  end
  def create
  @article = Article.new(article_params)
  redirect_to @article
  @article.save
  end

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

   params.require(:article).permit(:title, :full_name, :email, :phone_number, :message)
  end

   end

articles/show.html.erb

articles/show.html.erb

<p>
 <strong>Title:</strong>
 <%= @article.title %>
</p>

<p>
 <strong>Full Name:</strong>
 <%= @article.full_name %>
 </p>

 <p>
 <strong>Email:</strong>
  <%= @article.email %>
  </p>

 <p>
  <strong>Phone Number:</strong>
   <%= @article.phone_number %>
  </p>
  <p>
  <strong>Message:</strong>
   <%= @article.message %>
   </p>

articles/new.html.erb

articles/new.html.erb

<h1>New Articles</h1>

 <%= form_for :article, url: articles_path do |f| %>
  <p>
   <%= f.label :title %>
   <%= f.text_field :title %>
  <p>
  <%= f.label :full_name %>
  <%= f.text_field :full_name %>
  </p>
  <%= f.label :email %>
   <%= f.text_field :email %>
   <p>
   <%= f.label :phone_number %>
   <%= f.text_field :phone_number %>
   </p>
   <%= f.label :message %>
   <%= f.text_field :message %>
   <p>
    <%= f.submit :send_message %>
    </p>

   <% end %>

推荐答案

在实际保存文章之前，您要进行重定向.

You are redirecting before actually saving your article.

此:

def create
  @article = Article.new(article_params)
  redirect_to @article
  @article.save
end

应为:

def create
  @article = Article.new(article_params)
  @article.save
  redirect_to @article      
end

如果您还想添加一些错误处理:

And if you want to add some error handling as well:

def create
  @article = Article.new(article_params)
  if @article.save
    redirect_to @article
  else
    render :new
end

这篇关于没有ArticlesController#show中的ActiveRecord :: RecordNotFound找不到没有ID的文章的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！