table.rb in dbf-4.1.3

- old
+ new

@@ -1,9 +1,12 @@
 module DBF
   class FileNotFoundError < StandardError
   end
 
+  class NoColumnsDefined < StandardError
+  end
+
   # DBF::Table is the primary interface to a single DBF file and provides
   # methods for enumerating and searching the records.
   class Table
     extend Forwardable
     include Enumerable
@@ -173,13 +176,16 @@
     # the database.
     #
     # @param [Integer] index
     # @return [DBF::Record, NilClass]
     def record(index)
+      raise DBF::NoColumnsDefined, 'The DBF file has no columns defined' if columns.empty?
+
       seek_to_record(index)
       return nil if deleted_record?
 
-      DBF::Record.new(@data.read(record_length), columns, version, @memo)
+      record_data = @data.read(record_length)
+      DBF::Record.new(record_data, columns, version, @memo)
     end
 
     alias row record
 
     # Dumps all records to a CSV file.  If no filename is given then CSV is