#42

backend/app/controllers/tags_controller.rb

@@ -1,14 +1,12 @@
 class TagsController < ApplicationController
-  before_action :set_tags, only: %i[ show update destroy ]
-
   def index
-    @tags =
+    tags =
       if params[:post].present?
         Tag.joins(:posts).where(posts: { id: params[:post] })
       else
         Tag.all
       end
-    render json: @tags
+    render json: tags
   end
 
   def autocomplete
@@ -32,7 +30,7 @@ class TagsController < ApplicationController
   end
 
   def show
-    render json: @tag
+    render json: Tag.find(params[:id])
   end
 
   def create
@@ -43,16 +41,4 @@ class TagsController < ApplicationController
 
   def destroy
   end
-
-  private
-
-  # Use callbacks to share common setup or constraints between actions.
-  def set_tag
-    @tag = Tag.find(params.expect(:id))
-  end
-
-  # Only allow a list of trusted parameters through.
-  def tag_params
-    params.expect(tag: [ :title, :body ])
-  end
 end

backend/config/routes.rb

@@ -1,4 +1,14 @@
 Rails.application.routes.draw do
+  get 'tags/autocomplete', to: 'tags#autocomplete'
+  post 'posts/:id/viewed', to: 'posts#viewed'
+  delete 'posts/:id/viewed', to: 'posts#unviewed'
+  get 'preview/title', to: 'preview#title'
+  get 'preview/thumbnail', to: 'preview#thumbnail'
+  get 'wiki/title/:title', to: 'wiki_pages#show_by_title'
+  get 'wiki/:id', to: 'wiki_pages#show'
+  post 'wiki', to: 'wiki_pages#create'
+  put 'wiki/:id', to: 'wiki_pages#update'
+
   resources :posts
   resources :ip_addresses
   resources :nico_tag_relations
@@ -15,16 +25,6 @@ Rails.application.routes.draw do
     end
   end
 
-  get 'tags/autocomplete', to: 'tags#autocomplete'
-  post 'posts/:id/viewed', to: 'posts#viewed'
-  delete 'posts/:id/viewed', to: 'posts#unviewed'
-  get 'preview/title', to: 'preview#title'
-  get 'preview/thumbnail', to: 'preview#thumbnail'
-  get 'wiki/title/:title', to: 'wiki_pages#show_by_title'
-  get 'wiki/:id', to: 'wiki_pages#show'
-  post 'wiki', to: 'wiki_pages#create'
-  put 'wiki/:id', to: 'wiki_pages#update'
-
   # Define your application routes per the DSL in https://guides.rubyonrails.org/routing.html
 
   # Reveal health status on /up that returns 200 if the app boots with no exceptions, otherwise 500.