fix Pass object additional feilds

Pass.Coupon, Pass.EventTicket, Pass.EventTicket, and Pass.Generic don't have any additional feilds availabe so we don't need to provide methods for additional feilds.  boardingPass was being overwritten by the additonal feild method, now fixed.

resolves coorasse#29

app/models/passkit/pass.rb

@@ -17,14 +17,11 @@ class Pass < ActiveRecord::Base
       :barcodes,
       :beacons,
       :boarding_pass,
-      :coupon,
       :description,
-      :event_ticket,
       :expiration_date,
       :file_name,
       :foreground_color,
       :format_version,
-      :generic,
       :grouping_identifier,
       :header_fields,
       :label_color,
@@ -42,7 +39,6 @@ class Pass < ActiveRecord::Base
       :secondary_fields,
       :semantics,
       :sharing_prohibited,
-      :store_card,
       :suppress_strip_shine,
       :user_info,
       :voided,

lib/passkit/base_pass.rb

@@ -128,17 +128,10 @@ def beacons
 
     # Information specific to a boarding pass
     # Returns a hash representing Pass.BoardingPass
+    # https://developer.apple.com/documentation/walletpasses/pass/boardingpass
+    # i.e {transitType: 'PKTransitTypeGeneric'}
     def boarding_pass
-    end
-
-    # Information specific to a coupon
-    # Returns a hash representing Pass.Coupon
-    def coupon
-    end
-
-    # Information specific to an event ticket
-    # Returns a hash representing Pass.EventTicket
-    def event_ticket
+      {}
     end
 
     # Date and time the pass expires, must include
@@ -148,11 +141,6 @@ def event_ticket
     def expiration_date
     end
 
-    # Information specific to a generic pass
-    # Returns a hash representing Pass.Generic
-    def generic
-    end
-
     # A key to identify group multiple passes together
     # (e.g. a number of boarding passes for the same trip)
     # Returns a String
@@ -178,11 +166,6 @@ def relevant_date
     def semantics
     end
 
-    # Information specific to a store card
-    # Returns a hash representing Pass.StoreCard
-    def store_card
-    end
-
     # Display the strip image without a shine effect
     # Returns a boolean
     def suppress_strip_shine

lib/passkit/generator.rb

@@ -75,20 +75,14 @@ def generate_json_pass
       else
         pass[:barcodes] = @pass.barcodes
       end
-
       pass[:appLaunchURL] = @pass.app_launch_url if @pass.app_launch_url
       pass[:associatedStoreIdentifiers] = @pass.associated_store_identifiers unless @pass.associated_store_identifiers.empty?
       pass[:beacons] = @pass.beacons unless @pass.beacons.empty?
-      pass[:boardingPass] = @pass.boarding_pass if @pass.boarding_pass
-      pass[:coupon] = @pass.coupon if @pass.coupon
-      pass[:eventTicket] = @pass.event_ticket if @pass.event_ticket
       pass[:expirationDate] = @pass.expiration_date if @pass.expiration_date
-      pass[:generic] = @pass.generic if @pass.generic
       pass[:groupingIdentifier] = @pass.grouping_identifier if @pass.grouping_identifier
       pass[:nfc] = @pass.nfc if @pass.nfc
       pass[:relevantDate] = @pass.relevant_date if @pass.relevant_date
       pass[:semantics] = @pass.semantics if @pass.semantics
-      pass[:store_card] = @pass.store_card if @pass.store_card
       pass[:userInfo] = @pass.user_info if @pass.user_info
 
       pass[@pass.pass_type] = {
@@ -99,6 +93,8 @@ def generate_json_pass
         backFields: @pass.back_fields
       }
 
+      pass[:boardingPass ].merge(@pass.boarding_pass) if @pass.pass_type == :boardingPass && @pass.boarding_pass
+
       File.write(@temporary_path.join("pass.json"), pass.to_json)
     end