update menu import and export

app/models/menu.rb

@@ -1,4 +1,6 @@
 class Menu < ApplicationRecord
+
+  require 'spreadsheet'
   has_many :menu_categories, dependent: :destroy
 
   validates_presence_of :name, :valid_days, :valid_time_from, :valid_time_to
@@ -34,7 +36,7 @@ class Menu < ApplicationRecord
 
   def self.to_csv
     m_attributes = %w{name is_active valid_days valid_time_from valid_time_to created_by created_at updated_at}    
-    CSV.generate(headers: true) do |csv|
+    CSV.generate(headers: true, row_sep: "\r\n") do |csv|
       csv << m_attributes
       menu = Menu.all
       menu.each do |user|
@@ -44,9 +46,41 @@ class Menu < ApplicationRecord
   end
 
   def self.import(file)
-      CSV.foreach(file.path, headers:true) do |row|
-      Menu.create! row.to_hash
-    end  
+    spreadsheet = Roo::Spreadsheet.open(file.path)
+    puts spreadsheet.info
+
+    spreadsheet = Roo::Excelx.new(file.path)
+    puts spreadsheet.info
+
+    # Use the extension option if the extension is ambiguous.
+    spreadsheet = Roo::Spreadsheet.open(file.path, extension: :xlsx)
+
+    puts spreadsheet.info
+
+    header = spreadsheet.row(1)
+
+    (2..spreadsheet.last_row).each do |i|
+
+      row = Hash[[header,spreadsheet.row(i)].transpose]
+
+      menu = Menu.new
+      menu.name  = row["name"]
+      menu.is_active = row["is_active"]
+      menu.valid_days = row["valid_days"]
+      menu.valid_time_from = row["valid_time_from"]
+      menu.valid_time_to = row["valid_time_to"]
+      menu.created_by = row["created_by"]
+      menu.save
+    end
+  end
+
+  def self.open_spreadsheet(file)
+    case File.extname(file.original_filename)
+    when ".csv" then Roo::CSV.new(file.path,nil,:ignore)
+    when ".xls" then Roo::Excel.new(file.path,nil,:ignore)
+    when ".xlsx" then Roo::Excelx.new(file.path,nil,:ignore)
+    else raise "Unknown File type: #{original_filename}"
+    end
   end
 
 end