fix admin index error and implement export feature

app/controllers/admin/asks_controller.rb

@@ -302,7 +302,7 @@ class Admin::AsksController < OrbitAdminController
           if @ask_question.agree_show
             text = text.gsub(format_text,I18n.t('ask.yes'))
           else
-            text = text.gsub(format_text,I18n.t('ask,no'))
+            text = text.gsub(format_text,I18n.t('ask.no'))
           end
         when /custom\d+\|format/
           i = format_text.scan(/\d+/)[0].to_i - 1
@@ -432,39 +432,42 @@ class Admin::AsksController < OrbitAdminController
   end
 
   def do_export
-
+    def process_trans(trans)
+      trans.collect{|k,v| v if !v.blank?}.compact.uniq.join('/')
+    end
+    def get_fields_with_key(s)
+      fields_with_key = {}
+      fields_with_key['default_values'] = s.default_setting.collect{|k,v| [k, process_trans(s.field_name_translations(k))] if v && k!='ask_category_id'}.compact
+      fields_with_key['default_values'] = [['ask_category_id', process_trans(s.field_name_translations('ask_category_id'))]] + fields_with_key['default_values']
+      fields_with_key['default_values'] = fields_with_key['default_values'].to_h
+      fields_with_key['custom_values'] = s.custom_fields.collect{|k, field_setting| [k, process_trans(field_setting['field'])]}.to_h
+      fields_with_key
+    end
     Rails.application.config.mongoid.use_activesupport_time_zone = true
     date_start = "#{params[:export]['start(1i)']}-#{params[:export]['start(2i)']}-#{params[:export]['start(3i)']}"
     date_end = "#{params[:export]['end(1i)']}-#{params[:export]['end(2i)']}-#{params[:export]['end(3i)']}"
-    @ask_questions = AskQuestion.where(:created_at.gte => date_start.to_datetime, :created_at.lte => date_end.to_datetime+1)
-
-    csv = CSV.generate do |csv|
-    csv << [ t('category'),
-          AskQuestion.human_attribute_name(:name),
-          AskQuestion.human_attribute_name(:identity),
-          AskQuestion.human_attribute_name(:mail),
-          AskQuestion.human_attribute_name(:phone),
-          AskQuestion.human_attribute_name(:fax),
-          AskQuestion.human_attribute_name(:title),
-          AskQuestion.human_attribute_name(:content),
-          AskQuestion.human_attribute_name(:reply),
-          AskQuestion.human_attribute_name(:comment)]
-    @ask_questions.each do |ask_question|
-      Tag.where({:id => ask_question[:identity]}).each do |tag|
-        csv << [ ask_question.category.title,
-                ask_question.name,
-                tag.name,
-                ask_question.mail,
-                ask_question.phone,
-                ask_question.fax,
-                ask_question.title,
-                ask_question.content,
-                ask_question.reply,
-                ask_question.comment ]
-        end
-      end
+    ask_questions = AskQuestion.where(:created_at.gte => date_start.to_datetime, :created_at.lte => date_end.to_datetime)
+    categories = Category.where(:id.in => ask_questions.collect(&:category_id).uniq).to_a
+    ask_default_setting = AskSetting.first()
+    ask_settings = AskCategorySetting.where(:category_id.in => categories.collect(&:id)).collect{|s| [BSON::ObjectId(s.category_id), s]}.to_h
+    ask_category_settings =  {}
+    fields_with_key_group = {}
+    categories.each do |c|
+      s = ask_settings.fetch(c.id, ask_default_setting)
+      ask_category_settings[c.id] = s
+      fields_with_key_group[c.id] = get_fields_with_key(s)
     end
-    send_data csv.encode('Big5'), type: 'text/csv', filename: "Questions-#{date_start}-#{date_end}.csv"
+    ask_category_settings[nil] = ask_default_setting
+    fields_with_key_group[nil] = get_fields_with_key(ask_default_setting)
+    render xlsx: 'do_export.xlsx',
+          handlers: ['axlsx'],
+          filename: "Questions-#{date_start}-#{date_end}.xlsx",
+          locals: {
+            :ask_category_settings => ask_category_settings,
+            :fields_with_key_group => fields_with_key_group,
+            :categories => categories,
+            :ask_questions => ask_questions
+          }
   end
 
   def set_askquestion