10

我在学习 Rails 4 时正在做一个小练习,但在尝试更新对象时遇到了路由错误。我不断收到一条错误消息: 没有路线匹配 [POST] "/movies/1/edit"但看不到我的代码不正确的地方:

我的电影控制器.rb

class MoviesController < ApplicationController

  def index
    @movies = Movie.all
  end

  def show
    @movie = Movie.find(params[:id])
  end

  def new
    @movie = Movie.new
  end

  def create
    @movie = Movie.create(movie_params)

    if @movie.save 
        redirect_to "/movies/#{@movie.id}", :notice => "Your movie was saved!"
    else
        render "new"
    end
  end

  def edit
    @movie = Movie.find(params[:id])
  end

  def update
    @movie = Movie.find(params[:id])

    if @movie.update_attributes(params[:movie])
        redirect_to "/movies"
    else
        render "edit"
    end
  end

  def destroy

  end


  private

  def movie_params
    params.require(:movie).permit(:name, :genre, :year)
  end
end

这是我的 edit.html.erb

<h1>Now Editing:</h1>

<h3><%= @movie.name %></h3>

<%= form_for @movie.name do |f| %>

<%= f.label :name %>
<%= f.text_field :name %>
<br>
<%= f.label :genre %>
<%= f.text_field :genre %>
<br>
<%= f.label :year %>
<%= f.number_field :year %>
<br>
<%= f.submit "Update" %>    

和 routes.rb 文件:

MovieApp::Application.routes.draw do

  get "movies"             => "movies#index"
  post "movies"            => "movies#create"
  get "movies/new"         => "movies#new"
  get "movies/:id"         => "movies#show"
  get "movies/:id/edit"    => "movies#edit"
  put "movies/:id"         => "movies#update"

end

最后,这是运行的输出rake routes

    Prefix Verb URI Pattern                Controller#Action
    movies GET  /movies(.:format)          movies#index
           POST /movies(.:format)          movies#create
movies_new GET  /movies/new(.:format)      movies#new
           GET  /movies/:id(.:format)      movies#show
           GET  /movies/:id/edit(.:format) movies#edit
           PUT  /movies/:id(.:format)      movies#update
4

3 回答 3

4

form_for @movie.name应该是form_for @movie。我不知道发生了什么,但我怀疑这会以某种方式给你一个<form action="">.

于 2013-10-21T17:52:35.693 回答
2

您的错误消息显示您正在向编辑网址发送发布请求。

没有路线匹配 [POST] "/movies/1/edit"

而在路线中,您已经指定了一个获取请求。

得到“电影/:id/编辑”=>“电影#编辑”

我相信这会以某种方式导致问题,因此您可以更改发布请求。

post "movies/:id/edit"    => "movies#edit"
于 2013-10-21T17:57:16.017 回答
1

如果您正在使用,则在索引文件中

button_to 'Edit', edit_movie_path(movie)

将其更改为

link_to 'Edit', edit_movie_path(movie)

因为按钮将其发送为,POST但链接将其发送为GET.

于 2018-11-03T14:21:58.597 回答