Rails - Mar 2008 - rake only works once from rails

posted this on Ruby forum, no luck there -

maybe a Railser has dealt with this issue...


I''ve made a rake task that I''m running from my rails, and it
works - but
only once.  If I then restart the server (mongrel) it works again - once.

I can simulate this in the console session as shown...

q = Rake::Task["cache_sweeper"]
=> <Rake::Task cache_sweeper => []>
 >> q.invoke
=> 
[#<Proc:0xb6d03444@./script/../config/../config/../lib/tasks/cache.rake:4>]
 >> q = Rake::Task["cache_sweeper"]
=> <Rake::Task cache_sweeper => []>
 >> q.invoke
=> nil
 >>


... when q.invoke returns the "[#Proc:..." it has worked correctly,
nil
means nothing happened.

Any one have insight to what is happening with rake?

Thank you,


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I was having this problem just last night with a migration.  I don''t 
know why it happens, but I can tell you how I got around it: I changed 
the iteration number of the migration file itself.  In other words, I 
had a file called 001_create_schedules.rb; I renamed the file to 
002_create_schedules.rb.

I guess that is more of a workaround than a solution, but it might keep 
you running in the meantime until you can get a more in-depth response 
here in the forum (I''m a newbie too).
-- 
Posted via http://www.ruby-forum.com/.

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that sounds like your schema table had indexed to 1, which would mean it 
won''t run the "001_xxx" migration again

unless you rollback to version 0, or manually change the schema table 
value to 0

I''ve embedded a call to a rake task with a controller action, this rake
task only runs the first time it is called.

Sara Me wrote:
> I was having this problem just last night with a migration.  I
don''t
> know why it happens, but I can tell you how I got around it: I changed 
> the iteration number of the migration file itself.  In other words, I 
> had a file called 001_create_schedules.rb; I renamed the file to 
> 002_create_schedules.rb.
> 
> I guess that is more of a workaround than a solution, but it might keep 
> you running in the meantime until you can get a more in-depth response 
> here in the forum (I''m a newbie too).

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