Enqueue sync after transaction commit

app/controllers/matches_controller.rb

@@ -66,6 +66,7 @@ class MatchesController < ApplicationController
   # PATCH/PUT /matches/1
   def update
     new_state = match_params['state']
+    synced_tournament = nil
 
     Match.transaction do
       if @match.update(match_params)
@@ -78,12 +79,13 @@ class MatchesController < ApplicationController
         end
 
         render json: @match
-        push_sync_if_needed!(@match.tournament)
+        synced_tournament = @match.tournament
       else
         render json: @match.errors, status: :unprocessable_entity
         raise ActiveRecord::Rollback
       end
     end
+    push_sync_if_needed!(synced_tournament) unless synced_tournament.nil?
   end
 
   private

app/controllers/stages_controller.rb

@@ -19,17 +19,19 @@ class StagesController < ApplicationController
         return
       end
 
+      synced_tournament = nil
       Stage.transaction do
         if @stage.update(stage_params)
           handle_group_stage_end
 
           render json: @stage
-          push_sync_if_needed!(@stage.tournament)
+          synced_tournament = @stage.tournament
         else
           render json: @stage.errors, status: :unprocessable_entity
           raise ActiveRecord::Rollback
         end
       end
+      push_sync_if_needed!(synced_tournament) unless synced_tournament.nil?
     else
       render json: {
         error: 'The state attribute may only be changed to finished'

app/controllers/tournaments_controller.rb

@@ -85,6 +85,7 @@ class TournamentsController < ApplicationController
 
   # PATCH/PUT /tournaments/1
   def update
+    synced_tournament = nil
     Tournament.transaction do
       if only_playoff_teams_amount_changed
         @tournament.instant_finalists_amount, @tournament.intermediate_round_participants_amount =
@@ -94,13 +95,14 @@ class TournamentsController < ApplicationController
           )
       end
       if @tournament.update(tournament_params)
-        push_sync_if_needed!(@tournament)
+        synced_tournament = @tournament
         render json: @tournament
       else
         render json: @tournament.errors, status: :unprocessable_entity
         raise ActiveRecord::Rollback
       end
     end
+    push_sync_if_needed!(synced_tournament) unless synced_tournament.nil?
   end
 
   # DELETE /tournaments/1

spec/controllers/stages_controller_spec.rb

@@ -55,11 +55,11 @@ RSpec.describe StagesController, type: :controller do
         end
 
         it 'adds new stages to the tournament' do
-          expect(running_group_stage.tournament.stages.size).to be > 1
+          expect(running_group_stage.tournament.reload.stages.size).to be > 1
         end
 
         it 'adds the right teams' do
-          expect(running_group_stage.tournament.stages.max_by(&:level).teams)
+          expect(running_group_stage.tournament.reload.stages.max_by(&:level).teams)
             .to match_array(GroupStageService.get_advancing_teams(running_group_stage))
         end
       end