Implement a way for admins to send notifications

app/controllers/management/events_controller.rb

@@ -34,6 +34,15 @@ module Management
       @suggestion.save
     end
 
+    def send_acceptance_notifications
+      @suggestions = Conference.current.events.approved.where acceptance_notification_sent_at: nil
+      if @suggestions.all?(&:send_acceptance_notification!)
+        head :no_content
+      else
+        head :unprocessable_entity
+      end
+    end
+
     private
 
     def state_params

app/views/management/events/index.html.slim

@@ -16,3 +16,7 @@
           th.actions
       tbody
         = render partial: 'suggestion_group', collection: @suggestion_groups
+    .panel-footer
+      .pull-right
+        = link_to 'Изпрати нотификации на одобрените', send_acceptance_notifications_management_events_path, remote: true, method: :post, data: {confirm: 'Сигурни ли сте'}, class: %w{btn btn-danger}
+      .clearfix

config/routes.rb

@@ -32,6 +32,7 @@ Rails.application.routes.draw do
         get 'rejected'
         get 'undecided'
         get 'backup'
+        post 'send_acceptance_notifications'
       end
     end
   end