Add button to re-subscribe to all accounts from a domain (#4285)

app/controllers/admin/instances_controller.rb

@@ -6,15 +6,26 @@ module Admin
       @instances = ordered_instances
     end
 
+    def resubscribe
+      params.require(:by_domain)
+      Pubsubhubbub::SubscribeWorker.push_bulk(subscribeable_accounts.pluck(:id))
+      redirect_to admin_instances_path
+    end
+
     private
 
     def paginated_instances
       Account.remote.by_domain_accounts.page(params[:page])
     end
+
     helper_method :paginated_instances
 
     def ordered_instances
       paginated_instances.map { |account| Instance.new(account) }
     end
+
+    def subscribeable_accounts
+      Account.with_followers.remote.where(domain: params[:by_domain])
+    end
   end
 end

app/views/admin/instances/_instance.html.haml

@@ -3,3 +3,5 @@
     = instance.domain
   %td.count
     = instance.accounts_count
+  %td
+    = table_link_to 'paper-plane-o', t('admin.accounts.resubscribe'), resubscribe_admin_instances_url(by_domain: instance.domain), method: :post, data: { confirm: t('admin.accounts.are_you_sure') }

config/routes.rb

@@ -88,7 +88,12 @@ Rails.application.routes.draw do
     resources :subscriptions, only: [:index]
     resources :domain_blocks, only: [:index, :new, :create, :show, :destroy]
     resource :settings, only: [:edit, :update]
-    resources :instances, only: [:index]
+    
+    resources :instances, only: [:index] do
+      collection do
+        post :resubscribe
+      end
+    end
 
     resources :reports, only: [:index, :show, :update] do
       resources :reported_statuses, only: [:create, :update, :destroy]