data importe

app/models/datum/model/data_list/data_import.rb

@@ -1,5 +1,22 @@
+require 'write_xlsx'
 module Datum
   module Model::DataList::DataImport
+    extend ActiveSupport::Concern
+
+    def template
+      io = StringIO.new
+      workbook = WriteXLSX.new(io)
+
+      sheet = workbook.add_worksheet
+      sheet.write_row(0, 0, headers)
+
+      workbook.close
+      io.string
+    end
+
+    def headers
+      export.columns.values.map(&->(i){ i[:header] })
+    end
 
   end
 end

config/routes.rb

@@ -14,14 +14,21 @@
         end
       end
       namespace :panel, defaults: { namespace: 'panel' } do
-        resources :data_lists do
-          collection do
-            post :sync
-          end
+        resources :data_exports do
           member do
             put :update_publish
             patch :rebuild
           end
+        end
+        resources :data_imports do
+          member do
+            match :template, via: [:get, :post]
+          end
+        end
+        resources :data_lists, only: [] do
+          collection do
+            post :sync
+          end
           resources :table_lists do
             collection do
               get :direct