Add unless to migration

db/migrate/20250130190507_add_address_search_to_logs.rb

@@ -1,6 +1,11 @@
 class AddAddressSearchToLogs < ActiveRecord::Migration[7.2]
   def change
-    add_column :sales_logs, :address_search, :string
-    add_column :lettings_logs, :address_search, :string
+    unless column_exists?(:sales_logs, :address_search)
+      add_column :sales_logs, :address_search, :string
+    end
+
+    unless column_exists?(:lettings_logs, :address_search)
+      add_column :lettings_logs, :address_search, :string
+    end
   end
 end