我有两个模型：文章和段落。一篇文章可以包含很多段落。文章型号：
class Article < ApplicationRecord
#enum category: {wiki: "Wiki", rules: "Rules", blog: "Blog", draft: "Draft"}
enum category: [:wiki, :rules, :blog, :draft]
after_initialize :set_default_category, :if => :new_record?
def set_default_category
self.category ||= :draft
end
belongs_to :user
has_many :paragraphs, dependent: :destroy
accepts_nested_attributes_for :paragraphs, allow_destroy: true, reject_if: proc { |attr| attr['content'].blank? }
has_one_attached :article_image
end
款型：
class Paragraph < ApplicationRecord
belongs_to :article
has_one_attached :pragraph_image
has_rich_text :content
end
文章控制者：
class Admin::ArticlesController < ApplicationController
before_action :set_article, only: %i[ show edit update destroy ]
def index
@articles = Article.all
end
def show
end
def new
@article = Article.new
end
def edit
authorize [:admin, Article], :edit?
end
def create
@article = current_user.articles.build(article_params)
authorize [:admin, Article], :create?
respond_to do |format|
if @article.save
format.html { redirect_to admin_article_path(@article), notice: "Article was successfully created." }
format.json { render :show, status: :created, location: @article }
else
format.html { render :new, status: :unprocessable_entity }
format.json { render json: @article.errors, status: :unprocessable_entity }
end
end
end
def update
authorize [:admin, Article], :update?
respond_to do |format|
if @article.update(article_params)
@article.paragraphs.build
format.html { redirect_to admin_article_path(@article), notice: "Article was successfully updated." }
format.json { render :show, status: :ok, location: @article }
else
format.html { render :edit, status: :unprocessable_entity }
format.json { render json: @article.errors, status: :unprocessable_entity }
end
end
end
def destroy
authorize [:admin, Article], :destroy?
@article.destroy
respond_to do |format|
format.html { redirect_to admin_articles_path, notice: "Article was successfully destroyed." }
format.json { head :no_content }
end
end
private
def set_article
@article = Article.find(params[:id])
end
def article_params
params.require(:article).permit(:article_image, :name, :description, :category, :user_id,
paragraphs_attributes: [:_destroy, :id, :content] )
end
end
段落控制器：
class Admin::ParagraphsController < ApplicationController
before_action :set_article
before_action :set_paragraph, only: %i[ update destroy ]
def update
authorize [:admin, Article], :update?
respond_to do |format|
if @paragraph.update(article_params)
format.html { redirect_to admin_article_path(@article), notice: "Article was successfully updated." }
format.json { render :show, status: :ok, location: @article }
else
format.html { render :edit, status: :unprocessable_entity }
format.json { render json: @article.errors, status: :unprocessable_entity }
end
end
end
def destroy
authorize [:admin, Article], :update?
@paragraph.destroy
respond_to do |format|
format.html { redirect_to admin_article_path(@article), notice: 'Post was successfully destroyed.' }
format.json { head :no_content }
end
end
private
def set_article
@article = Article.find(params[:article_id])
end
def set_paragraph
@paragraph = @article.paragraphs.find(params[:id])
end
def article_params
params.require(:paragraph).permit(:content, :article_id)
end
end
我在 show.html.haml 中的链接（查看文章，我可以在其中添加/编辑/删除段落）：
= link_to 'X', admin_article_paragraph_path(@article, paragraph),
:method => :delete,
data: { "turbo-method": :delete, confirm: "Are you sure?" },
:class => "btn btn-danger"
路线（管理部分）：
# Admin routes
namespace :admin do
root to: 'dashboard#index'
resources :users
resources :articles do
resources :paragraphs, only: [:update, :destroy]
end
end
所以，当我尝试删除段落时，也会删除文章。我在控制台中看到的：
Started DELETE "/admin/articles/62/paragraphs/42" for 127.0.0.1 at 2022-02-08 16:50:10 +0300
Processing by Admin::ParagraphsController#destroy as TURBO_STREAM
Parameters: {"article_id"=>"62", "id"=>"42"}
User Load (0.8ms) SELECT "users".* FROM "users" WHERE "users"."id" = $1 ORDER BY "users"."id" ASC LIMIT $2 [["id", 0], ["LIMIT", 1]]
Article Load (1.4ms) SELECT "articles".* FROM "articles" WHERE "articles"."id" = $1 LIMIT $2 [["id", 62], ["LIMIT", 1]]
↳ app/controllers/admin/paragraphs_controller.rb:29:in `set_article'
Paragraph Load (0.5ms) SELECT "paragraphs".* FROM "paragraphs" WHERE "paragraphs"."article_id" = $1 AND "paragraphs"."id" = $2 LIMIT $3 [["article_id", 62], ["id", 42], ["LIMIT", 1]]
↳ app/controllers/admin/paragraphs_controller.rb:33:in `set_paragraph'
TRANSACTION (0.2ms) BEGIN
↳ app/controllers/admin/paragraphs_controller.rb:20:in `destroy'
ActiveStorage::Attachment Load (0.6ms) SELECT "active_storage_attachments".* FROM "active_storage_attachments" WHERE "active_storage_attachments"."record_id" = $1 AND "active_storage_attachments"."record_type" = $2 AND "active_storage_attachments"."name" = $3 LIMIT $4 [["record_id", 42], ["record_type", "Paragraph"], ["name", "pragraph_image"], ["LIMIT", 1]]
↳ app/controllers/admin/paragraphs_controller.rb:20:in `destroy'
ActionText::RichText Load (0.4ms) SELECT "action_text_rich_texts".* FROM "action_text_rich_texts" WHERE "action_text_rich_texts"."record_id" = $1 AND "action_text_rich_texts"."record_type" = $2 AND "action_text_rich_texts"."name" = $3 LIMIT $4 [["record_id", 42], ["record_type", "Paragraph"], ["name", "content"], ["LIMIT", 1]]
↳ app/controllers/admin/paragraphs_controller.rb:20:in `destroy'
ActiveStorage::Attachment Load (0.2ms) SELECT "active_storage_attachments".* FROM "active_storage_attachments" WHERE "active_storage_attachments"."record_id" = $1 AND "active_storage_attachments"."record_type" = $2 AND "active_storage_attachments"."name" = $3 [["record_id", 17], ["record_type", "ActionText::RichText"], ["name", "embeds"]]
↳ app/controllers/admin/paragraphs_controller.rb:20:in `destroy'
ActionText::RichText Destroy (15.7ms) DELETE FROM "action_text_rich_texts" WHERE "action_text_rich_texts"."id" = $1 [["id", 17]]
↳ app/controllers/admin/paragraphs_controller.rb:20:in `destroy'
Paragraph Destroy (4.5ms) DELETE FROM "paragraphs" WHERE "paragraphs"."id" = $1 [["id", 42]]
↳ app/controllers/admin/paragraphs_controller.rb:20:in `destroy'
TRANSACTION (16.0ms) COMMIT
↳ app/controllers/admin/paragraphs_controller.rb:20:in `destroy'
Redirected to http://127.0.0.1:3000/admin/articles/62
Completed 302 Found in 158ms (ActiveRecord: 55.6ms | Allocations: 11283)
Started DELETE "/admin/articles/62" for 127.0.0.1 at 2022-02-08 16:50:11 +0300
Processing by Admin::ArticlesController#destroy as TURBO_STREAM
Parameters: {"id"=>"62"}
User Load (13.2ms) SELECT "users".* FROM "users" WHERE "users"."id" = $1 ORDER BY "users"."id" ASC LIMIT $2 [["id", 0], ["LIMIT", 1]]
Article Load (4.9ms) SELECT "articles".* FROM "articles" WHERE "articles"."id" = $1 LIMIT $2 [["id", 62], ["LIMIT", 1]]
↳ app/controllers/admin/articles_controller.rb:60:in `set_article'
TRANSACTION (0.1ms) BEGIN
↳ app/controllers/admin/articles_controller.rb:50:in `destroy'
Paragraph Load (0.3ms) SELECT "paragraphs".* FROM "paragraphs" WHERE "paragraphs"."article_id" = $1 [["article_id", 62]]
↳ app/controllers/admin/articles_controller.rb:50:in `destroy'
ActiveStorage::Attachment Load (0.8ms) SELECT "active_storage_attachments".* FROM "active_storage_attachments" WHERE "active_storage_attachments"."record_id" = $1 AND "active_storage_attachments"."record_type" = $2 AND "active_storage_attachments"."name" = $3 LIMIT $4 [["record_id", 62], ["record_type", "Article"], ["name", "article_image"], ["LIMIT", 1]]
↳ app/controllers/admin/articles_controller.rb:50:in `destroy'
Article Destroy (25.7ms) DELETE FROM "articles" WHERE "articles"."id" = $1 [["id", 62]]
↳ app/controllers/admin/articles_controller.rb:50:in `destroy'
TRANSACTION (97.2ms) COMMIT
↳ app/controllers/admin/articles_controller.rb:50:in `destroy'
Redirected to http://127.0.0.1:3000/admin/articles
Completed 302 Found in 160ms (ActiveRecord: 142.1ms | Allocations: 5243)
Started DELETE "/admin/articles" for 127.0.0.1 at 2022-02-08 16:50:11 +0300
ActionController::RoutingError (No route matches [DELETE] "/admin/articles"):
Started GET "/admin/articles/62" for 127.0.0.1 at 2022-02-08 16:50:11 +0300
Processing by Admin::ArticlesController#show as HTML
Parameters: {"id"=>"62"}
User Load (1.5ms) SELECT "users".* FROM "users" WHERE "users"."id" = $1 ORDER BY "users"."id" ASC LIMIT $2 [["id", 0], ["LIMIT", 1]]
Article Load (7.0ms) SELECT "articles".* FROM "articles" WHERE "articles"."id" = $1 LIMIT $2 [["id", 62], ["LIMIT", 1]]
↳ app/controllers/admin/articles_controller.rb:60:in `set_article'
Completed 404 Not Found in 29ms (ActiveRecord: 8.5ms | Allocations: 2156)
ActiveRecord::RecordNotFound (Couldn't find Article with 'id'=62):
app/controllers/admin/articles_controller.rb:60:in `set_article'
我的错误在哪里？谢谢