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Juergen Grommes

2006-Aug-16 10:16 UTC

[Rails] Newbie-Question

Hi.
I''ve just started using Ruby on Rails.
Now I''ve got my first problem.

I generated a new migration ''add_price'' and get the message:

                                                                                
D:\ruby\work\depot>rake
db:migrate 
(in D:/ruby/work/depot) 
== AddPrice: migrating 
======================================================== 
-- add_column(:products, :pice, :decimal, {:default=>0, :precision=>8, 
:scale=>2 
}) 
rake aborted! 
You have a nil object when you didn''t expect it! 
You might have expected an instance of Array. 
The error occured while evaluating nil.[] 
(See full trace by running task with --trace) 
D:\ruby\work\depot>rake db:migrate --trace 
(in D:/ruby/work/depot) 
** Invoke db:migrate (first_time) 
** Invoke environment (first_time) 
** Execute environment 
** Execute db:migrate 
== AddPrice: migrating 
======================================================== 
-- add_column(:products, :pice, :decimal, {:default=>0, :precision=>8, 
:scale=>2 
}) 
rake aborted! 
You have a nil object when you didn''t expect it! 
You might have expected an instance of Array. 
The error occured while evaluating nil.[] 
d:/ruby/lib/ruby/gems/1.8/gems/activerecord-1.14.4/lib/active_record/connection_
adapters/abstract/schema_statements.rb:259:in `type_to_sql'' 
d:/ruby/lib/ruby/gems/1.8/gems/activerecord-1.14.4/lib/active_record/connection_
adapters/abstract/schema_statements.rb:122:in `add_column'' 
d:/ruby/lib/ruby/gems/1.8/gems/activerecord-1.14.4/lib/active_record/migration.r
b:273:in `method_missing'' 
d:/ruby/lib/ruby/gems/1.8/gems/activerecord-1.14.4/lib/active_record/migration.r
b:257:in `say_with_time'' 
d:/ruby/lib/ruby/1.8/benchmark.rb:293:in `measure'' 
d:/ruby/lib/ruby/gems/1.8/gems/activerecord-1.14.4/lib/active_record/migration.r
b:257:in `say_with_time'' 
d:/ruby/lib/ruby/gems/1.8/gems/activerecord-1.14.4/lib/active_record/migration.r
b:271:in `method_missing'' 
./db/migrate//002_add_price.rb:3:in `real_up'' 
d:/ruby/lib/ruby/gems/1.8/gems/activerecord-1.14.4/lib/active_record/migration.r
b:210:in `migrate'' 
d:/ruby/lib/ruby/1.8/benchmark.rb:293:in `measure'' 
d:/ruby/lib/ruby/gems/1.8/gems/activerecord-1.14.4/lib/active_record/migration.r
b:210:in `migrate'' 
d:/ruby/lib/ruby/gems/1.8/gems/activerecord-1.14.4/lib/active_record/migration.r
b:333:in `migrate'' 
d:/ruby/lib/ruby/gems/1.8/gems/activerecord-1.14.4/lib/active_record/migration.r
b:328:in `migrate'' 
d:/ruby/lib/ruby/gems/1.8/gems/activerecord-1.14.4/lib/active_record/migration.r
b:295:in `up'' 
d:/ruby/lib/ruby/gems/1.8/gems/activerecord-1.14.4/lib/active_record/migration.r
b:286:in `migrate'' 
d:/ruby/lib/ruby/gems/1.8/gems/rails-1.1.6/lib/tasks/databases.rake:4 
d:/ruby/lib/ruby/gems/1.8/gems/rake-0.7.1/lib/rake.rb:387:in `execute'' 
d:/ruby/lib/ruby/gems/1.8/gems/rake-0.7.1/lib/rake.rb:387:in `execute'' 
d:/ruby/lib/ruby/gems/1.8/gems/rake-0.7.1/lib/rake.rb:357:in `invoke'' 
d:/ruby/lib/ruby/1.8/thread.rb:135:in `synchronize'' 
d:/ruby/lib/ruby/gems/1.8/gems/rake-0.7.1/lib/rake.rb:350:in `invoke'' 
d:/ruby/lib/ruby/gems/1.8/gems/rake-0.7.1/lib/rake.rb:1906:in `run'' 
d:/ruby/lib/ruby/gems/1.8/gems/rake-0.7.1/lib/rake.rb:1906:in `run'' 
d:/ruby/lib/ruby/gems/1.8/gems/rake-0.7.1/bin/rake:7 
d:/ruby/bin/rake.bat:25

Any idea for the reason?

Thanks,

Juergen

-- 
Posted via http://www.ruby-forum.com/.

Dark Ambient

2006-Aug-16 10:33 UTC

head link

[Rails] Newbie-Question

You need ''edgerails'' if you want to use the decimal column. 
Check the
AWDWR errata as it should mention something about it.  Rails allows
you to have multiple versions of itself.  You''d need to update to
edgerails for the Depot application only.



Stuart

On 8/16/06, Juergen Grommes <juergen.grommes@fit.fraunhofer.de>
wrote:> Hi.
> I''ve just started using Ruby on Rails.
> Now I''ve got my first problem.
>
> I generated a new migration ''add_price'' and get the
message:
>
>                                                                            
D:\ruby\work\depot>rake
> db:migrate
> (in D:/ruby/work/depot)
> == AddPrice: migrating
> =======================================================> --
add_column(:products, :pice, :decimal, {:default=>0, :precision=>8,
> :scale=>2
> })
> rake aborted!
> You have a nil object when you didn''t expect it!
> You might have expected an instance of Array.
> The error occured while evaluating nil.[]
> (See full trace by running task with --trace)
> D:\ruby\work\depot>rake db:migrate --trace
> (in D:/ruby/work/depot)
> ** Invoke db:migrate (first_time)
> ** Invoke environment (first_time)
> ** Execute environment
> ** Execute db:migrate
> == AddPrice: migrating
> =======================================================> --
add_column(:products, :pice, :decimal, {:default=>0, :precision=>8,
> :scale=>2
> })
> rake aborted!
> You have a nil object when you didn''t expect it!
> You might have expected an instance of Array.
> The error occured while evaluating nil.[]
>
d:/ruby/lib/ruby/gems/1.8/gems/activerecord-1.14.4/lib/active_record/connection_
> adapters/abstract/schema_statements.rb:259:in `type_to_sql''
>
d:/ruby/lib/ruby/gems/1.8/gems/activerecord-1.14.4/lib/active_record/connection_
> adapters/abstract/schema_statements.rb:122:in `add_column''
>
d:/ruby/lib/ruby/gems/1.8/gems/activerecord-1.14.4/lib/active_record/migration.r
> b:273:in `method_missing''
>
d:/ruby/lib/ruby/gems/1.8/gems/activerecord-1.14.4/lib/active_record/migration.r
> b:257:in `say_with_time''
> d:/ruby/lib/ruby/1.8/benchmark.rb:293:in `measure''
>
d:/ruby/lib/ruby/gems/1.8/gems/activerecord-1.14.4/lib/active_record/migration.r
> b:257:in `say_with_time''
>
d:/ruby/lib/ruby/gems/1.8/gems/activerecord-1.14.4/lib/active_record/migration.r
> b:271:in `method_missing''
> ./db/migrate//002_add_price.rb:3:in `real_up''
>
d:/ruby/lib/ruby/gems/1.8/gems/activerecord-1.14.4/lib/active_record/migration.r
> b:210:in `migrate''
> d:/ruby/lib/ruby/1.8/benchmark.rb:293:in `measure''
>
d:/ruby/lib/ruby/gems/1.8/gems/activerecord-1.14.4/lib/active_record/migration.r
> b:210:in `migrate''
>
d:/ruby/lib/ruby/gems/1.8/gems/activerecord-1.14.4/lib/active_record/migration.r
> b:333:in `migrate''
>
d:/ruby/lib/ruby/gems/1.8/gems/activerecord-1.14.4/lib/active_record/migration.r
> b:328:in `migrate''
>
d:/ruby/lib/ruby/gems/1.8/gems/activerecord-1.14.4/lib/active_record/migration.r
> b:295:in `up''
>
d:/ruby/lib/ruby/gems/1.8/gems/activerecord-1.14.4/lib/active_record/migration.r
> b:286:in `migrate''
> d:/ruby/lib/ruby/gems/1.8/gems/rails-1.1.6/lib/tasks/databases.rake:4
> d:/ruby/lib/ruby/gems/1.8/gems/rake-0.7.1/lib/rake.rb:387:in
`execute''
> d:/ruby/lib/ruby/gems/1.8/gems/rake-0.7.1/lib/rake.rb:387:in
`execute''
> d:/ruby/lib/ruby/gems/1.8/gems/rake-0.7.1/lib/rake.rb:357:in
`invoke''
> d:/ruby/lib/ruby/1.8/thread.rb:135:in `synchronize''
> d:/ruby/lib/ruby/gems/1.8/gems/rake-0.7.1/lib/rake.rb:350:in
`invoke''
> d:/ruby/lib/ruby/gems/1.8/gems/rake-0.7.1/lib/rake.rb:1906:in
`run''
> d:/ruby/lib/ruby/gems/1.8/gems/rake-0.7.1/lib/rake.rb:1906:in
`run''
> d:/ruby/lib/ruby/gems/1.8/gems/rake-0.7.1/bin/rake:7
> d:/ruby/bin/rake.bat:25
>
> Any idea for the reason?
>
> Thanks,
>
> Juergen
>
> --
> Posted via http://www.ruby-forum.com/.
> _______________________________________________
> Rails mailing list
> Rails@lists.rubyonrails.org
> http://lists.rubyonrails.org/mailman/listinfo/rails
>

Juergen Grommes

2006-Aug-16 10:42 UTC

head link

[Rails] Re: Newbie-Question

> You''d need to update to
> edgerails for the Depot application only.
Can you tell me how to do this?

-- 
Posted via http://www.ruby-forum.com/.

Dark Ambient

2006-Aug-16 10:45 UTC

head link

[Rails] Re: Newbie-Question

http://wiki.rubyonrails.org/rails/pages/EdgeRails
I chose the "easy way".  Just make sure you are in the depot directory
when you run the command.

Stuart

On 8/16/06, Juergen Grommes <juergen.grommes@fit.fraunhofer.de>
wrote:> > You''d need to update to
> > edgerails for the Depot application only.
>
> Can you tell me how to do this?
>
> --
> Posted via http://www.ruby-forum.com/.
> _______________________________________________
> Rails mailing list
> Rails@lists.rubyonrails.org
> http://lists.rubyonrails.org/mailman/listinfo/rails
>

Juergen Grommes

2006-Aug-16 10:53 UTC

head link

[Rails] Re: Re: Newbie-Question

> http://wiki.rubyonrails.org/rails/pages/EdgeRails
> I chose the "easy way".  
i just get another error message while starting the easy way

D:\ruby\work\depot>rake rails:freeze:edge --trace 
(in D:/ruby/work/depot) 
** Invoke rails:freeze:edge (first_time) 
** Execute rails:freeze:edge 
d:/ruby/bin/rake.bat: No such file or directory - svn --version 
ERROR: Must have subversion (svn) available in the PATH to lock this 
application to Edge Rails   rake aborted! 
exit 
d:/ruby/lib/ruby/gems/1.8/gems/rails-1.1.6/lib/tasks/framework.rake:41:in 
`exit'' 
d:/ruby/lib/ruby/gems/1.8/gems/rails-1.1.6/lib/tasks/framework.rake:41 
d:/ruby/lib/ruby/gems/1.8/gems/rake-0.7.1/lib/rake.rb:387:in `execute'' 
d:/ruby/lib/ruby/gems/1.8/gems/rake-0.7.1/lib/rake.rb:387:in `execute'' 
d:/ruby/lib/ruby/gems/1.8/gems/rake-0.7.1/lib/rake.rb:357:in `invoke'' 
d:/ruby/lib/ruby/1.8/thread.rb:135:in `synchronize'' 
d:/ruby/lib/ruby/gems/1.8/gems/rake-0.7.1/lib/rake.rb:350:in `invoke'' 
d:/ruby/lib/ruby/gems/1.8/gems/rake-0.7.1/lib/rake.rb:1906:in `run'' 
d:/ruby/lib/ruby/gems/1.8/gems/rake-0.7.1/lib/rake.rb:1906:in `run'' 
d:/ruby/lib/ruby/gems/1.8/gems/rake-0.7.1/bin/rake:7 
d:/ruby/bin/rake.bat:25 
D:\ruby\work\depot>


-- 
Posted via http://www.ruby-forum.com/.

Michael Siebert

2006-Aug-16 11:00 UTC

head link

[Rails] Re: Re: Newbie-Question

you''ll have to install subversion (svn). its a version control system.
for
more info and downloads, visit
http://subversion.tigris.org

2006/8/16, Juergen Grommes
<juergen.grommes@fit.fraunhofer.de>:>
>
> > http://wiki.rubyonrails.org/rails/pages/EdgeRails
> > I chose the "easy way".
>
> i just get another error message while starting the easy way
>
> D:\ruby\work\depot>rake rails:freeze:edge --trace
> (in D:/ruby/work/depot)
> ** Invoke rails:freeze:edge (first_time)
> ** Execute rails:freeze:edge
> d:/ruby/bin/rake.bat: No such file or directory - svn --version
> ERROR: Must have subversion (svn) available in the PATH to lock this
> application to Edge Rails   rake aborted!
> exit
> d:/ruby/lib/ruby/gems/1.8/gems/rails-1.1.6/lib/tasks/framework.rake:41:in
> `exit''
> d:/ruby/lib/ruby/gems/1.8/gems/rails-1.1.6/lib/tasks/framework.rake:41
> d:/ruby/lib/ruby/gems/1.8/gems/rake-0.7.1/lib/rake.rb:387:in
`execute''
> d:/ruby/lib/ruby/gems/1.8/gems/rake-0.7.1/lib/rake.rb:387:in
`execute''
> d:/ruby/lib/ruby/gems/1.8/gems/rake-0.7.1/lib/rake.rb:357:in
`invoke''
> d:/ruby/lib/ruby/1.8/thread.rb:135:in `synchronize''
> d:/ruby/lib/ruby/gems/1.8/gems/rake-0.7.1/lib/rake.rb:350:in
`invoke''
> d:/ruby/lib/ruby/gems/1.8/gems/rake-0.7.1/lib/rake.rb:1906:in
`run''
> d:/ruby/lib/ruby/gems/1.8/gems/rake-0.7.1/lib/rake.rb:1906:in
`run''
> d:/ruby/lib/ruby/gems/1.8/gems/rake-0.7.1/bin/rake:7
> d:/ruby/bin/rake.bat:25
> D:\ruby\work\depot>
>
>
> --
> Posted via http://www.ruby-forum.com/.
> _______________________________________________
> Rails mailing list
> Rails@lists.rubyonrails.org
> http://lists.rubyonrails.org/mailman/listinfo/rails
>


-- 
Michael Siebert <info@siebert-wd.de>

www.stellar-legends.de - Weltraum-Browsergame im Alpha-Stadium
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Dark Ambient

2006-Aug-16 11:02 UTC

head link

[Rails] Re: Re: Newbie-Question

On 8/16/06, Juergen Grommes <juergen.grommes@fit.fraunhofer.de> wrote:
> ERROR: Must have subversion (svn) available in the PATH to lock this
> application to Edge Rails   rake aborted!
> exit

If you have subversion /svn/ then make sure it''s in the environmental
path, otherwise, yes you''d need to install it.

S

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