fix error

app/models/archive_category.rb

@@ -6,7 +6,7 @@ class ArchiveCategory
 	if(!record.new_record? && record.sort_number.class != Fixnum)
 		record.sort_number = 0
 		record.save
-    elsif(!record.new_record?)
+  elsif(!record.new_record?)
 		@category = Category.find(record.category_id) rescue nil
 		if !@category.nil?
 			@sort_number = @category.sort_number rescue nil

app/models/archive_file.rb

@@ -15,7 +15,12 @@ class ArchiveFile
   # BelongsToCategory =  :archive_file_category
 
   # PAYMENT_TYPES = @site_valid_locales
-
+  before_save do
+    cat = self.category rescue nil
+    if cat && ArchiveCategory.where(:category_id => cat.id).count==0
+      ArchiveCategory.create(category_id: cat.id.to_s)
+    end
+  end
 
   field :title, as: :slug_title, localize: true
   field :description, localize: true