文章/答案/技术大牛

发布

社区首页 >问答首页 >Rails -没有匹配的路由[POST] "/page/new“

问Rails -没有匹配的路由[POST] "/page/new“
EN

Stack Overflow用户

提问于 2020-09-19 05:53:24

回答 1查看 42关注 0票数 1

我在rails包中创建。根据给定的id正确地显示所有页面和单个页面的列表。向数据库添加新记录时出现问题:没有与POST "/ page / new“匹配的路由。这是什么原因？转到page / new后，添加表单正确显示。数据库是postgresql，我也使用Active Storage。

迁移/

class CreatePages < ActiveRecord::Migration[6.0]
  def up 
    create_table :pages do |t|

      t.string "name"
      t.string "description"
      t.string "github"
      t.string "website"
    end
    add_index("pages","id")
  end

  def down
    drop_table :pages
  end

end

page_controller.rb

class PageController < ApplicationController
  def index
    @page = Page.all
  end

  def new
    @page = Page.new
  end

  def show
    @page = Page.find(params[:id])
  end


  def create
    @page = Page.new(page_params)

    if @page.save
    redirect_to @page
    else
      render 'new'
      end
    end


  def edit
  end

  def delete
  end

  private

  def page_params
    params.require(:page).permit(:name, :description, :github, :website)
  end

end

routes.rb

Rails.application.routes.draw do
  resources :page
  # For details on the DSL available within this file, see https://guides.rubyonrails.org/routing.html
end

new.html.erb

<%= form_with scope: :pages, local: true do |form| %>

  <%= form.label "Name" %></br>
  <%= form.text_field :name %></br>

  <%= form.label "Description" %></br>
  <%= form.text_field :description %></br>

  <%= form.label "GitHub" %></br>
  <%= form.text_field :github %></br>

  <%= form.label "Website" %></br>
  <%= form.text_field :website %></br></br>

  <%= form.submit "Add" %></br>

<% end %>

模型/页面.rb

class Page < ApplicationRecord
end

rails路由

             Prefix Verb   URI Pattern                                                                              Controller#Action
                           page_index GET    /page(.:format)                                                                          page#index
                                      POST   /page(.:format)                                                                          page#create
                             new_page GET    /page/new(.:format)                                                                      page#new
                            edit_page GET    /page/:id/edit(.:format)                                                                 page#edit
                                 page GET    /page/:id(.:format)                                                                      page#show
                                      PATCH  /page/:id(.:format)                                                                      page#update
                                      PUT    /page/:id(.:format)                                                                      page#update
                                      DELETE /page/:id(.:format)                                                                      page#destroy
        rails_postmark_inbound_emails POST   /rails/action_mailbox/postmark/inbound_emails(.:format)                                  action_mailbox/ingresses/postmark/inbound_emails#create
           rails_relay_inbound_emails POST   /rails/action_mailbox/relay/inbound_emails(.:format)                                     action_mailbox/ingresses/relay/inbound_emails#create
        rails_sendgrid_inbound_emails POST   /rails/action_mailbox/sendgrid/inbound_emails(.:format)                                  action_mailbox/ingresses/sendgrid/inbound_emails#create
  rails_mandrill_inbound_health_check GET    /rails/action_mailbox/mandrill/inbound_emails(.:format)                                  action_mailbox/ingresses/mandrill/inbound_emails#health_check
        rails_mandrill_inbound_emails POST   /rails/action_mailbox/mandrill/inbound_emails(.:format)                                  action_mailbox/ingresses/mandrill/inbound_emails#create
         rails_mailgun_inbound_emails POST   /rails/action_mailbox/mailgun/inbound_emails/mime(.:format)                              action_mailbox/ingresses/mailgun/inbound_emails#create
       rails_conductor_inbound_emails GET    /rails/conductor/action_mailbox/inbound_emails(.:format)                                 rails/conductor/action_mailbox/inbound_emails#index
                                      POST   /rails/conductor/action_mailbox/inbound_emails(.:format)                                 rails/conductor/action_mailbox/inbound_emails#create
    new_rails_conductor_inbound_email GET    /rails/conductor/action_mailbox/inbound_emails/new(.:format)                             rails/conductor/action_mailbox/inbound_emails#new
   edit_rails_conductor_inbound_email GET    /rails/conductor/action_mailbox/inbound_emails/:id/edit(.:format)                        rails/conductor/action_mailbox/inbound_emails#edit
        rails_conductor_inbound_email GET    /rails/conductor/action_mailbox/inbound_emails/:id(.:format)                             rails/conductor/action_mailbox/inbound_emails#show
                                      PATCH  /rails/conductor/action_mailbox/inbound_emails/:id(.:format)                             rails/conductor/action_mailbox/inbound_emails#update
                                      PUT    /rails/conductor/action_mailbox/inbound_emails/:id(.:format)                             rails/conductor/action_mailbox/inbound_emails#update
                                      DELETE /rails/conductor/action_mailbox/inbound_emails/:id(.:format)                             rails/conductor/action_mailbox/inbound_emails#destroy
rails_conductor_inbound_email_reroute POST   /rails/conductor/action_mailbox/:inbound_email_id/reroute(.:format)                      rails/conductor/action_mailbox/reroutes#create
                   rails_service_blob GET    /rails/active_storage/blobs/:signed_id/*filename(.:format)                               active_storage/blobs#show
            rails_blob_representation GET    /rails/active_storage/representations/:signed_blob_id/:variation_key/*filename(.:format) active_storage/representations#show
                   rails_disk_service GET    /rails/active_storage/disk/:encoded_key/*filename(.:format)                              active_storage/disk#show
            update_rails_disk_service PUT    /rails/active_storage/disk/:encoded_token(.:format)                                      active_storage/disk#update
                 rails_direct_uploads POST   /rails/active_storage/direct_uploads(.:format)                                           active_storage/direct_uploads#create

ruby-on-rails

ruby

回答 1

Stack Overflow用户

发布于 2020-09-19 06:09:41

适当的复数在Rails中非常重要。resources总是复数形式：

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

Singular resources确实存在，但这是一个不太常见的场景，我怀疑你在这里想要做的是什么。

我真的不知道这种形式的scope: :users是从哪里来的，但它已经过时了。

你想要的是：

<%= form_with model: @page, local: true do |form| %>
  <div class="field">
    <%= form.label :name %>
    <%= form.text_field :name %>
  <div/>
  <div class="field">
    <%= form.label :description %>
    <%= form.text_field :description %>
  <div/>
  <div class="field">
    <%= form.label :github, "GitHub" %></br>
    <%= form.text_field :github %></br>
  <div/>
  <div class="field">
    <%= form.label :website %></br>
    <%= form.text_field :website %></br></br>
  <div/>
  <%= form.submit %>
<% end %>

使用model: @page将表单绑定到在控制器中创建的模型实例。

由于创建了正确的for=属性，label的第一个参数应该与您出于可访问性原因标记的输入相匹配。Rails将默认大写第一个字母。

转储<br>标记。现在不是1999年。使用<div>或其他元素对输入和标签进行分组，并使用CSS设置它们的样式。

避免像<%= form.submit "Create" %>那样向submit按钮添加文本。请改用the I18n system，因为它允许您重用相同的表单来创建和更新。

票数 2

页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持

原文链接：

https://stackoverflow.com/questions/63963281

复制

相似问题

问Rails -没有匹配的路由[POST] "/page/new“
EN

回答 1

Stack Overflow用户

社区

活动

圈层

关于

腾讯云开发者

热门产品

热门推荐

更多推荐

问Rails -没有匹配的路由[POST] "/page/new“EN

回答 1

Stack Overflow用户

社区

活动

圈层

关于

腾讯云开发者

热门产品

热门推荐

更多推荐

问Rails -没有匹配的路由[POST] "/page/new“
EN