我正在构建一个简单的CMS作为学习Rails的第一个练习。我创建了一个Pages模型并调整了路由,因此show action是domain.com/:id,所有其他操作都是domain.com/admin/pages/:id。当我运行rake routes
并且一切正常时,我的路线看起来像我预期的那样,除非我编辑页面时表单中的操作不正确并且我收到No route matches [PATCH]
错误。如果我将表单操作硬编码到我期望的那样,那么一切正常。但是我不想这样做,因为我对New&更新。这是详细信息:
这是我视图中的表单标记
<%= form_for @page do |f| %>¬
New/Post
生成
# <form action="/admin/pages" all good
<form class="new_page" id="new_page" action="/admin/pages" accept-charset="UTF-8" method="post">
<input name="utf8" type="hidden" value="✓">
<input type="hidden" name="authenticity_token" value="[..token..]">
# <!-- regular form fields -->
<input type="submit" name="commit" value="Save" class="btn btn-primary">
</form>
但Update/Patch
生成
# <form action="/1" should be /admin/pages/1
<form class="edit_page" id="edit_page_6" action="/6" accept-charset="UTF-8" method="post">
<input name="utf8" type="hidden" value="✓">
<input type="hidden" name="_method" value="patch">
<input type="hidden" name="authenticity_token" value="[..token...]">
# <!-- Regular Form Fields -->
<input type="submit" name="commit" value="Save" class="btn btn-primary">
</form>
我的路线档案
root 'pages#home'
resources :pages, :only => [:show,:home], :path => ''
resources :pages, :except => [:show,:home], :path => 'admin/pages'
使用rake路线生成以下内容:
Prefix Verb URI Pattern Controller#Action
root GET / pages#home
page GET /:id(.:format) pages#show
pages GET /admin/pages(.:format) pages#index
POST /admin/pages(.:format) pages#create
new_page GET /admin/pages/new(.:format) pages#new
edit_page GET /admin/pages/:id/edit(.:format) pages#edit
PATCH /admin/pages/:id(.:format) pages#update
PUT /admin/pages/:id(.:format) pages#update
DELETE /admin/pages/:id(.:format) pages#destroy
更新 - pages_controller.rb
class PagesController < ApplicationController
before_action :set_page, only: [:show, :edit, :update, :destroy]
before_action :authenticate_admin!, except:[:show,:home]
layout "admin"
def index
@pages = Page.all
end
def home
@page = Page.find(1) #todo: make dynamic
render :show
end
def show
redirect_to_good_slug(@page) and return if bad_slug?(@page)
render layout: "layouts/public"
end
def new
@page = Page.new
end
def edit
# @page defined in set_page method below
end
def create
@page = Page.new(page_params)
if @page.save
redirect_to edit_page_path(@page), notice: '...success'
else
render :new
end
end
def update
if @page.update(page_params)
redirect_to @page, notice: 'Page was successfully updated.'
else
render :edit
end
end
def destroy
@page.destroy
redirect_to pages_url, notice: 'Page was successfully destroyed.'
end
private
def set_page
@page = Page.find(params[:id])
end
def page_params
params.require(:page).permit(:title, :slug, :content, :published)
end
end
答案 0 :(得分:4)
这是因为您更改了show
操作路径。
rails form_for
将尝试使用create
操作路径。否则它将使用show
行动路径。
这意味着在编辑资源时,导轨form_for
会使用show
操作的路径。
<强>解决方案强>
也改变show
行动的路线。
resources :pages, :except => [:home], :path => 'admin/pages'
在编辑表单中尝试此操作。但是很少有做事的方式。
<%= form_for @page, :url => "#{pages_path}/#{@page.id}" do |f| %>