fix show_expiration at CampaignItemModel

@@ -1194,7 +1194,7 @@ public class swiftApi {
         private var start_date: String?
         private var end_date: String?
         private var filter: String? // supermarket - free - contest etc
-        private var show_expiration: Bool?
+        private var show_expiration: String?
         private var coupon_img: String?
         
         public init() {
@@ -1227,7 +1227,7 @@ public class swiftApi {
             self.start_date = ""
             self.end_date = ""
             self.filter = ""
-            self.show_expiration = false
+            self.show_expiration = "false"
             self.coupon_img = ""
         }
 
@@ -1284,7 +1284,7 @@ public class swiftApi {
                 self.banner_title = extra_fields["Banner_title"] as? String ?? ""
                 self.category_id = extra_fields["category_id"] as? String ?? ""
                 self.filter = extra_fields["filter"] as? String ?? ""
-                self.show_expiration = extra_fields["show_expiration"] as? Bool? ?? false
+                self.show_expiration = extra_fields["show_expiration"] as? String? ?? "false"
                 self.coupon_img = extra_fields["coupon_img"] as? String? ?? ""
             } else {
                  self.subcategory = ""
@@ -1298,7 +1298,7 @@ public class swiftApi {
                 self.banner_img = ""
                 self.banner_title = ""
                 self.filter = ""
-                self.show_expiration = false
+                self.show_expiration = "false"
                 self.coupon_img = ""
             }
             
@@ -1564,7 +1564,7 @@ public class swiftApi {
             }
         }
 
-        public var _show_expiration: Bool? {
+        public var _show_expiration: String? {
             get { // getter
                 return self.show_expiration
             }