Add events for pair programming study

app/controllers/events_controller.rb

@@ -1,10 +1,7 @@
 # frozen_string_literal: true
 
 class EventsController < ApplicationController
-  def authorize!
-    authorize(@event || @events)
-  end
-  private :authorize!
+  before_action :require_user!
 
   def create
     @event = Event.new(event_params)
@@ -20,12 +17,21 @@ class EventsController < ApplicationController
     end
   end
 
+  private
+
+  def authorize!
+    authorize(@event || @events)
+  end
+
   def event_params
     # The file ID processed here is the context of the exercise (template),
     # not in the context of the submission!
     params[:event]
       &.permit(:category, :data, :exercise_id, :file_id)
-      &.merge(user: current_user)
+      &.merge(user: current_user, programming_group:, study_group_id: current_user.current_study_group_id)
+  end
+
+  def programming_group
+    current_contributor if current_contributor.programming_group?
   end
-  private :event_params
 end