lib/datev/export.rb in datev-0.1.1 vs lib/datev/export.rb in datev-0.2.0

@@ -10,25 +10,25 @@
       'DATEV-Format-KZ' => 'EXTF',
       'Versionsnummer'  => 510,
       'Datenkategorie'  => 21,
       'Formatname'      => 'Buchungsstapel',
       'Formatversion'   => 7,
-      'Erzeugt am'      => Time.now,
+      'Erzeugt am'      => Time.now.utc,
       'Sachkontenlänge' => 4,
       'Bezeichnung'     => 'Buchungen',
       'Buchungstyp'     => 1,
       'WKZ'             => 'EUR'
     }
 
     def initialize(header_attributes)
+      raise ArgumentError.new('Hash required') unless header_attributes.is_a?(Hash)
+
       @header = Header.new DEFAULT_HEADER_ATTRIBUTES.merge(header_attributes)
       @rows = []
     end
 
-    def <<(booking)
-      raise ArgumentError.new('Param must be a Datev::Booking instance') unless booking.is_a?(Booking)
-
-      @rows << booking
+    def <<(attributes)
+      @rows << Datev::Booking.new(attributes)
     end
 
     def to_s
       CSV.generate(CSV_OPTIONS) do |csv|
         write(csv)