stringifying keys for lane_details (#352)

* stringifying keys for lane_details

* changed stringify_keys to explicitly defining keys as strings

app/helpers/lane_factory.rb

@@ -8,10 +8,10 @@ def self.competing_lane(event_ids: [], comment: '', guests: 0, admin_comment: ''
     competing_lane.completed_steps = ['Event Registration']
     competing_lane.lane_state = registration_status
     competing_lane.lane_details = {
-      event_details: event_ids.map { |event_id| { event_id: event_id, event_registration_state: registration_status } },
-      comment: comment,
-      admin_comment: admin_comment,
-      guests: guests,
+      'event_details' => event_ids.map { |event_id| { event_id: event_id, event_registration_state: registration_status } },
+      'comment' => comment,
+      'admin_comment' => admin_comment,
+      'guests' => guests,
     }
     competing_lane
   end
@@ -22,11 +22,11 @@ def self.payment_lane(fee_lowest_denominator, currency_code, payment_id)
     payment_lane.completed_steps = ['Payment Intent Init']
     payment_lane.lane_state = 'initialized'
     payment_lane.lane_details = {
-      amount_lowest_denominator: fee_lowest_denominator,
-      payment_id: payment_id,
-      currency_code: currency_code,
-      last_updated: Time.now,
-      payment_history: [],
+      'amount_lowest_denominator' => fee_lowest_denominator,
+      'payment_id' => payment_id,
+      'currency_code' => currency_code,
+      'last_updated' => Time.now,
+      'payment_history' => [],
     }
     payment_lane
   end

app/models/registration.rb

@@ -95,7 +95,7 @@ def update_competing_lane!(update_params)
         if update_params[:status].present?
           lane.lane_state = update_params[:status]
 
-          lane.lane_details[:event_details].each do |event|
+          lane.lane_details['event_details'].each do |event|
             # NOTE: Currently event_registration_state is not used - when per-event registrations are added, we need to add validation logic to support cases like
             # limited registrations and waiting lists for certain events
             event['event_registration_state'] = update_params[:status]