Michael, Did you get your problem resolved? Your code is almost 100% the same as the example here except for Simone's suggestion of inlining the first process.
http://hibernatingrhinos.com/open-source/rhino-etl/introduction Take a look and let us know if you have questions. Nathan On Fri, Jul 20, 2012 at 8:54 PM, Simone Busoli <simone.bus...@gmail.com>wrote: > I'm not overly familiar with the DSL but I think that inlining the first > operation inside the process itself instead of declaring it as a standalone > operation should work. > > Simone > > On Sat, Jul 21, 2012 at 1:31 AM, Michael Gates <miketga...@gmail.com>wrote: > >> I'm very new to this library and am trying to understand the Boo DSL. >> When I run the following code, I get "Null enumerator detected, are you >> trying to read from the first operation in the process?" >> code: >> >> import FileHelpers >> >> [DelimitedRecord("|")] >> public class LoyaltyRow: >> public Name as string >> public Loyalty as string >> >> operation import_from_db: >> input "SourceDatabase", Command = """ >> SELECT >> FirstName, LastName, LoyaltyNumber >> FROM LoyaltyTable >> """ >> >> operation transform_names: >> for row in rows: >> row.Name = row.FirstName + " " + row.LastName >> row.Loyalty = row.LoyaltyNumber.ToString() >> yield row >> >> operation export_file: >> engine = Rhino.Etl.Core.Files.FluentFile.For[of LoyaltyRow]() >> file = engine.To("DatabaseExport.txt") >> for row in rows: >> record = row.ToObject[of LoyaltyRow]() >> file.Write(record) >> yield row >> file.Dispose() >> >> process Test: >> import_from_db() >> transform_names() >> export_file() >> >> -- >> You received this message because you are subscribed to the Google Groups >> "Rhino Tools Dev" group. >> To view this discussion on the web visit >> https://groups.google.com/d/msg/rhino-tools-dev/-/D_cZ6Jq53b0J. >> To post to this group, send email to rhino-tools-dev@googlegroups.com. >> To unsubscribe from this group, send email to >> rhino-tools-dev+unsubscr...@googlegroups.com. >> For more options, visit this group at >> http://groups.google.com/group/rhino-tools-dev?hl=en. >> > > -- > You received this message because you are subscribed to the Google Groups > "Rhino Tools Dev" group. > To post to this group, send email to rhino-tools-dev@googlegroups.com. > To unsubscribe from this group, send email to > rhino-tools-dev+unsubscr...@googlegroups.com. > For more options, visit this group at > http://groups.google.com/group/rhino-tools-dev?hl=en. > -- You received this message because you are subscribed to the Google Groups "Rhino Tools Dev" group. To post to this group, send email to rhino-tools-dev@googlegroups.com. To unsubscribe from this group, send email to rhino-tools-dev+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/rhino-tools-dev?hl=en.
