fix cancel of lessons

ruby/lib/jam_ruby/models/lesson_session.rb

@@ -35,6 +35,7 @@ module JamRuby
     belongs_to  :canceler, class_name: "JamRuby::User", foreign_key: :canceler_id
     belongs_to  :lesson_package_purchase, class_name: "JamRuby::LessonPackagePurchase"
     belongs_to  :lesson_booking, class_name: "JamRuby::LessonBooking"
+    belongs_to  :user, class_name: "JamRuby::User"
     belongs_to  :slot, class_name: "JamRuby::LessonBookingSlot", foreign_key: :slot_id, :dependent => :destroy
     belongs_to  :lesson_payment_charge, class_name: "JamRuby::LessonPaymentCharge", foreign_key: :charge_id
     belongs_to  :counter_slot, class_name: "JamRuby::LessonBookingSlot", foreign_key: :counter_slot_id, inverse_of: :countered_lesson, :dependent => :destroy
@@ -501,6 +502,7 @@ module JamRuby
       lesson_session.status = booking.status
       lesson_session.slot = booking.default_slot
       lesson_session.assigned_student = booking.student
+      lesson_session.user = booking.student
       if booking.is_test_drive? && booking.student.remaining_test_drives > 0
         lesson_session.lesson_package_purchase = booking.student.most_recent_test_drive_purchase
       end
@@ -758,6 +760,7 @@ module JamRuby
       response = self
       LessonSession.transaction do
 
+        self.status = LessonSession::STATUS_CANCELED
         canceler = params[:canceler]
         canceled_by_student = canceler == student
         other = canceled_by_student ? teacher : student
@@ -779,6 +782,11 @@ module JamRuby
           if response.errors.any?
             raise ActiveRecord::Rollback
           end
+
+          if !save
+            response = self
+            raise ActiveRecord::Rollback
+          end
         else
           cancel_lesson(canceler, message)
           if !save

ruby/spec/jam_ruby/models/lesson_session_spec.rb

@@ -47,6 +47,7 @@ describe LessonSession do
     it "cancel in the past is OK" do
       slot = FactoryGirl.build(:lesson_booking_slot_single, preferred_day: Date.today + 1)
       lesson = normal_lesson(user, teacher, {slots: [slot, slot2]})
+
       Timecop.travel(Date.today + 2)
       lesson.cancel({
                         message: "Cancel time!",

web/app/assets/javascripts/react-components/stores/LessonTimerStore.js.coffee

@@ -33,6 +33,7 @@ rest = new context.JK.Rest()
         inThePast = false
         beforeSession = false
         startingSoon = false
+        lessonWindow = false
 
         if untilInfo.total < 0
             # we are past the start time