(bug) total number of minutes used of reservation is not correct when using prepaid pack

Author: gnepud

CHANGELOG.md

@@ -3,6 +3,7 @@
 ## Next release
 
 - improvement: remove reset_password_token after password changed in url
+- Fix a bug: total number of minutes used of reservation is not correct when using prepaid pack
 
 ## v6.4.18 2025 December 8
 

app/services/prepaid_pack_service.rb

@@ -49,8 +49,8 @@ def update_user_minutes(user, reservation)
       return if available_minutes.zero?
 
       # total number of minutes in the reservation's slots
-      slots_minutes = reservation.slots.joins(:slots_reservations).where('slots_reservations.offered': false).map do |slot|
-        (slot.end_at.to_time - slot.start_at.to_time) / 60.0
+      slots_minutes = SlotsReservation.includes(:slot).where(reservation_id: reservation.id, offered: false).map do |sr|
+        (sr.slot.end_at.to_time - sr.slot.start_at.to_time) / 60.0
       end
       reservation_minutes = slots_minutes.reduce(:+) || 0