Rails 虚 URL 阻止 #edit 工作 models/story.rbRoutes.rbschema.rb

如何解决Rails 虚 URL 阻止 #edit 工作 models/story.rbRoutes.rbschema.rb

用户可以创建和编辑故事（主要是博客）。我为故事设置了一个自定义虚 URL，因此它显示的不仅仅是递增的 id，而是 /stories/1-some-story-title。这适用于 #show，但是当我尝试编辑故事时（使用 /stories/1-some-story-title/edit 路线）我看到一个错误：

Routing Error:
No route matches [POST] "/stories/1-some-story-title/edit"

但是，如果我尝试手动访问非虚 URL (/stories/1/edit)，它会起作用，所以肯定是虚 URL 没有在数据库中正确查找，我只是无法访问确切地找出原因。

在我看来，Rails 可以毫无问题地为 #show 查找故事，这似乎很奇怪，但在使用 #edit 时遇到了问题

值得注意的是，我正在使用 Active Admin 和 Action Text (Trix)。

感谢任何指导。我仍在掌握 Rails 的窍门，因此当然也欢迎您发现任何有用的文章。

---

故事控制器#show、#edit 和#update

  def show
    @story = Story.find(params[:id])
  end

  def edit
    @story = Story.find(params[:id])
    unless @current_user.is_admin?
      redirect_to root_path if @story.created_at < 2.hours.ago
      redirect_to root_path unless @current_user == @story.user
    end
  end

  def update
    @story = Story.find(params[:id])
    if @story.user == @current_user || @current_user.is_admin?
      if @story.update(form_params)
        redirect_to story_path(@story)
      else
        render 'edit'
      end
    else
      redirect_to root_path
    end
  end

---

models/story.rb

class Story < ApplicationRecord


  # A story can have many comments
  has_many :comments,dependent: :destroy
  # A story can have many favourites
  has_many :favourites,dependent: :destroy
  # A story can only belong to one user
  belongs_to :user

  # Add Trix Rich Text Editor
  has_rich_text :body

  # Add image uploader
  mount_uploader :image,ImageUploader

  validates :title,presence: true
  validates :body,presence: true,length: { minimum: 10 }

  # Changing story URL from number to story title
  def to_param
    id.to_s + '-' + title.parameterize
  end

end

---

Routes.rb

Rails.application.routes.draw do
  ActiveAdmin.routes(self)
  # For details on the DSL available within this file,see https://guides.rubyonrails.org/routing.html

  # Routes for stories
  resources :stories do
    resources :comments
    resource :favourite
  end

  # routes for users
  resources :users
  # Routes for sessions
  resource :session

  # Set homepage as stories index page
  root 'stories#index'

  # Add new pages and their urls
  get 'about',to: 'pages#about'
  get 'our-story',to: 'pages#our_story'
  get 'terms-and-conditions',to: 'pages#terms'

  get 'favourites',to: 'favourites#index'
end

---

schema.rb

ActiveRecord::Schema.define(version: 2021_05_17_183348) do

  create_table "action_text_rich_texts",force: :cascade do |t|
    t.string "name",null: false
    t.text "body"
    t.string "record_type",null: false
    t.bigint "record_id",null: false
    t.datetime "created_at",precision: 6,null: false
    t.datetime "updated_at",null: false
    t.index ["record_type","record_id","name"],name: "index_action_text_rich_texts_uniqueness",unique: true
  end

  create_table "active_admin_comments",force: :cascade do |t|
    t.string "namespace"
    t.text "body"
    t.string "resource_type"
    t.integer "resource_id"
    t.string "author_type"
    t.integer "author_id"
    t.datetime "created_at",null: false
    t.index ["author_type","author_id"],name: "index_active_admin_comments_on_author"
    t.index ["namespace"],name: "index_active_admin_comments_on_namespace"
    t.index ["resource_type","resource_id"],name: "index_active_admin_comments_on_resource"
  end

  create_table "active_storage_attachments",null: false
    t.string "record_type",null: false
    t.integer "record_id",null: false
    t.integer "blob_id",null: false
    t.index ["blob_id"],name: "index_active_storage_attachments_on_blob_id"
    t.index ["record_type","name","blob_id"],name: "index_active_storage_attachments_uniqueness",unique: true
  end

  create_table "active_storage_blobs",force: :cascade do |t|
    t.string "key",null: false
    t.string "filename",null: false
    t.string "content_type"
    t.text "metadata"
    t.string "service_name",null: false
    t.bigint "byte_size",null: false
    t.string "checksum",null: false
    t.index ["key"],name: "index_active_storage_blobs_on_key",unique: true
  end

  create_table "active_storage_variant_records",force: :cascade do |t|
    t.integer "blob_id",null: false
    t.string "variation_digest",null: false
    t.index ["blob_id","variation_digest"],name: "index_active_storage_variant_records_uniqueness",unique: true
  end

  create_table "comments",force: :cascade do |t|
    t.text "body"
    t.integer "story_id",null: false
    t.integer "user_id"
    t.index ["story_id"],name: "index_comments_on_story_id"
  end

  create_table "favourites",force: :cascade do |t|
    t.integer "story_id",null: false
    t.integer "user_id",null: false
    t.index ["story_id"],name: "index_favourites_on_story_id"
    t.index ["user_id"],name: "index_favourites_on_user_id"
  end

  create_table "pages",force: :cascade do |t|
    t.string "title"
    t.text "body"
    t.string "url"
    t.string "image"
    t.datetime "created_at",null: false
  end

  create_table "stories",force: :cascade do |t|
    t.string "title"
    t.text "body"
    t.string "topic"
    t.datetime "created_at",null: false
    t.integer "user_id"
    t.string "image"
  end

  create_table "users",force: :cascade do |t|
    t.string "first_name"
    t.string "last_name"
    t.string "username"
    t.string "email"
    t.string "password_digest"
    t.datetime "created_at",null: false
    t.boolean "is_admin",default: false
    t.string "avatar"
  end

  add_foreign_key "active_storage_attachments","active_storage_blobs",column: "blob_id"
  add_foreign_key "active_storage_variant_records",column: "blob_id"
  add_foreign_key "comments","stories"
  add_foreign_key "favourites","users"
end

解决方法

修复了它。需要补充：

  def to_param
    id.to_s + '-' + title.parameterize
  end

到 app/admin/stories.rb 文件。它已包含在 story.rb 模型中，但未包含在 Active Admin 的目录中。