Improve Migration for Sustainable tourism update

backend/db/migrate/20231123093623_change_tourism_and_recreation_to_sustainable_tourism.rb

@@ -3,33 +3,33 @@ def up
     Project.where(category: "tourism-and-recreation").update_all(category: "sustainable-tourism")
 
     [Investor, ProjectDeveloper].each do |model|
-      model.where("categories @> ?", "{tourism-and-recreation}").find_each do |record|
+      records_to_upsert = model.where("categories @> ?", "{tourism-and-recreation}")
+        .map do |record|
         new_categories = record.categories.map do |category|
           category == "tourism-and-recreation" ? "sustainable-tourism" : category
         end
 
-        data = record.attributes
-        data['categories'] = new_categories
-
-        model.upsert_all([data], unique_by: :id)
+        record.attributes.merge(categories: new_categories)
       end
+
+      model.upsert_all(records_to_upsert, unique_by: :id) unless records_to_upsert.empty?
     end
   end
 
   def down
     Project.where(category: "sustainable-tourism").update_all(category: "tourism-and-recreation")
 
     [Investor, ProjectDeveloper].each do |model|
-      model.where("categories @> ?", "{sustainable-tourism}").find_each do |record|
+      records_to_upsert = model.where("categories @> ?", "{sustainable-tourism}")
+        .map do |record|
         new_categories = record.categories.map do |category|
           category == "sustainable-tourism" ? "tourism-and-recreation" : category
         end
 
-        data = record.attributes
-        data['categories'] = new_categories
-
-        model.upsert_all([data], unique_by: :id)
+        record.attributes.merge(categories: new_categories)
       end
+
+      model.upsert_all(records_to_upsert, unique_by: :id) unless records_to_upsert.empty?
     end
   end
 end