Fix bug.

app/controllers/archives_controller.rb

@@ -95,6 +95,7 @@ class ArchivesController < ApplicationController
      		end
      		if tags == ["all"]
      			tags = module_app.tags.sort_by{|tag| ((module_app.asc rescue true) ? tag.sort_number.to_i : -tag.sort_number.to_i)}.map{|tag| tag.id.to_s}
+     			tags << nil
      		end
      		if params[:data_count].to_i <=0
                 page_data_count = 0
@@ -111,12 +112,32 @@ class ArchivesController < ApplicationController
      			group_archive_files = {}
      			cats = []
      			each_data_count = []
+     			archive_files_ids = archive_files.pluck(:id)
+     			archive_files_ids_count = archive_files_ids.count
      			tags.each do |tag_id|
-     				tag = Tag.find(tag_id) rescue nil
-     				next if tag.nil?
-     				url_to_edit = OrbitHelper.current_user ? "/admin/archive_files?filters[tags][]=#{tag_id}" : ""
-     				taggings = Tagging.where(:tag_id=>tag_id).pluck(:taggable_id)
-     				archives = archive_files.where(:id.in=>taggings).to_a
+     				tag_name = ""
+     				if tag_id
+	     				tag = Tag.find(tag_id) rescue nil
+	     				next if tag.nil?
+	     				url_to_edit = OrbitHelper.current_user ? "/admin/archive_files?filters[tags][]=#{tag_id}" : ""
+	     				taggings = Tagging.where(:tag_id=>tag_id).pluck(:taggable_id)
+	     				archives = archive_files.where(:id.in=>taggings).to_a
+	     				archive_files_ids = archive_files_ids - archives.map{|a| a.id}
+	     				tag_name = Tag.find(tag_id).name
+	     			else
+	     				if categories.count == 1
+	     					url_to_edit = OrbitHelper.current_user ? "/admin/archive_files?filters[category][]=#{categories[0]}" : ""
+	     				else
+	     					url_to_edit = OrbitHelper.current_user ? "/admin/archive_files" : ""
+	     				end
+	     				archives = []
+	     				if tags.count > 1 && archive_files_ids_count != archive_files_ids.count
+	     					tag_name = I18n.t("archive.other")
+	     					archives = archive_files.where(:id.in=>archive_files_ids).to_a
+	     				else
+	     					archives = archive_files.to_a
+	     				end
+	     			end
      				serial_number = 0
      				if archives.count != 0
      					archives = archives.sort_by{|k| [(k["is_top"] ? 0 : 1) ,(k["sort_number"].nil? ? Float::INFINITY : sort_order * k["sort_number"].to_i),-k["created_at"].to_i]}.map.with_index do |archive,idx|
@@ -167,7 +188,7 @@ class ArchivesController < ApplicationController
 			    		each_data_count.push(archives.length)
 		    			sorted = archives
 		    			cats << {
-		    				"category-title" => Tag.find(tag_id).name,
+		    				"category-title" => tag_name,
 		    				"archives" => sorted,
 		    				"url_to_edit" => url_to_edit
 		    			}
@@ -230,7 +251,7 @@ class ArchivesController < ApplicationController
     			each_data_count.push(archives.length)
     			sorted = archives
     			{
-    				"category-title" => category.title,
+    				"category-title" => (categories.count > 1 ? category.title : ""),
     				"archives" => sorted,
     				"url_to_edit" => url_to_edit
     			}

config/locales/en.yml

@@ -2,6 +2,7 @@ en:
   restful_actions:
     categories_order: Categories Order
   archive:
+    other: Other
     serial_number: "Serial Number"
     url_text: "URL Text"
     url_text_hint: "URL Text, default: link"

config/locales/zh_tw.yml

@@ -2,6 +2,7 @@ zh_tw:
   restful_actions:
     categories_order: 類別排序
   archive:
+    other: 其他
     serial_number: "編號"
     url_text: "連結文字"
     url_text_hint: "連結文字，預設為link"