lib/SimpleCSVUploder.rb in SimpleCSVUploder-0.1.2 vs lib/SimpleCSVUploder.rb in SimpleCSVUploder-0.1.3

@@ -23,9 +23,15 @@
 
   def sanitize_filename(filename)
     return File.basename(filename)
   end
 
+  def check_duplication_filename
+    if Document.where(filename: self.filename).present?
+      errors.add(:file, 'File already exists.')
+    end
+  end
+
   def csv_file_format
     if self.content_type != "text/csv"
      errors.add(:file, 'File format should be only CSV.')
     end
   end