I''m following along with the example in Agile, and I''m simply
trying to
create a migration to add a price column to a table called products.
This table exists as my application is displaying it using a scaffold.
Here''s my migration:
class AddPrice < ActiveRecord::Migration
def self.up
add_column :products, :price, :decimal, :precision => 8, :scale =>
2, :default => 0
end
def self.down
remove_column :products, :price
end
end
However when I run my migration I get the following:
powerbook-g4-15:~/Documents/work/depot drew$ rake db:migrate
(in /Users/drew/Documents/work/depot)
== AddPrice: migrating
=======================================================-- add_column(:products,
:price, :decimal, {:precision=>8, :default=>0,
: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)
Any help would be great... I feel like a moron, I''m sure I''ve
gotten
this working before, just trying to follow along with the example in the
book.
--
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You need to update to Rails 1.2 RC 1. Since the book relies on edge, that''s where you can fix your issue. gem install rails --source http://gems.rubyonrails.org --include-dependencies is the code to run For more info: http://weblog.rubyonrails.org/2006/11/23/rails-1-2-release-candidate-1 --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group. To post to this group, send email to rubyonrails-talk-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org To unsubscribe from this group, send email to rubyonrails-talk-unsubscribe-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org For more options, visit this group at http://groups.google.com/group/rubyonrails-talk?hl=en -~----------~----~----~----~------~----~------~--~---
Hi, could you post your migration file? -Conrad On 12/26/06, Drew Olson <rails-mailing-list-ARtvInVfO7ksV2N9l4h3zg@public.gmane.org> wrote:> > I''m following along with the example in Agile, and I''m simply trying to > create a migration to add a price column to a table called products. > This table exists as my application is displaying it using a scaffold. > Here''s my migration: > > class AddPrice < ActiveRecord::Migration > def self.up > add_column :products, :price, :decimal, :precision => 8, :scale => > 2, :default => 0 > end > def self.down > remove_column :products, :price > end > end > > However when I run my migration I get the following: > > powerbook-g4-15:~/Documents/work/depot drew$ rake db:migrate > (in /Users/drew/Documents/work/depot) > == AddPrice: migrating > =======================================================> -- add_column(:products, :price, :decimal, {:precision=>8, :default=>0, > :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) > > Any help would be great... I feel like a moron, I''m sure I''ve gotten > this working before, just trying to follow along with the example in the > book. > > -- > Posted via http://www.ruby-forum.com/. > > > >--~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group. To post to this group, send email to rubyonrails-talk-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org To unsubscribe from this group, send email to rubyonrails-talk-unsubscribe-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org For more options, visit this group at http://groups.google.com/group/rubyonrails-talk?hl=en -~----------~----~----~----~------~----~------~--~---
Hi, I see it. -C On 12/26/06, Conrad Taylor <conradwt-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:> Hi, could you post your migration file? > > -Conrad > > > > On 12/26/06, Drew Olson <rails-mailing-list-ARtvInVfO7ksV2N9l4h3zg@public.gmane.org> wrote: > > > > I''m following along with the example in Agile, and I''m simply trying to > > create a migration to add a price column to a table called products. > > This table exists as my application is displaying it using a scaffold. > > Here''s my migration: > > > > class AddPrice < ActiveRecord::Migration > > def self.up > > add_column :products, :price, :decimal, :precision => 8, :scale => > > 2, :default => 0 > > end > > def self.down > > remove_column :products, :price > > end > > end > > > > However when I run my migration I get the following: > > > > powerbook-g4-15:~/Documents/work/depot drew$ rake db:migrate > > (in /Users/drew/Documents/work/depot) > > == AddPrice: migrating > > =======================================================> > -- add_column(:products, :price, :decimal, {:precision=>8, :default=>0, > > :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) > > > > Any help would be great... I feel like a moron, I''m sure I''ve gotten > > this working before, just trying to follow along with the example in the > > book. > > > > -- > > Posted via http://www.ruby-forum.com/. > > > > > > > > >--~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group. To post to this group, send email to rubyonrails-talk-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org To unsubscribe from this group, send email to rubyonrails-talk-unsubscribe-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org For more options, visit this group at http://groups.google.com/group/rubyonrails-talk?hl=en -~----------~----~----~----~------~----~------~--~---
boboroshi wrote:> You need to update to Rails 1.2 RC 1. Since the book relies on edge, > that''s where you can fix your issue. > > gem install rails --source http://gems.rubyonrails.org > --include-dependencies > > is the code to run > > For more info: > http://weblog.rubyonrails.org/2006/11/23/rails-1-2-release-candidate-1I am running this from inside locomotive, so I attempted to update my rails install inside locomotive by doing the following: gem update rails --source http://gems.rubyonrails.org --include-dependencies However, now when I do rails -v, I see: powerbook-g4-15:~/Documents/work/depot drew$ rails -v Rails 1.1.6 Still getting the same error as well... -- Posted via http://www.ruby-forum.com/. --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group. To post to this group, send email to rubyonrails-talk-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org To unsubscribe from this group, send email to rubyonrails-talk-unsubscribe-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org For more options, visit this group at http://groups.google.com/group/rubyonrails-talk?hl=en -~----------~----~----~----~------~----~------~--~---
Drew, Agile v2 requires edge/1.2. I don''t think there''s any
way around
it. I would reccomend following Dan Benjamin''s phenomenal step by step
directions here:
http://hivelogic.com/articles/2005/12/01/ruby_rails_lighttpd_mysql_tiger
and run it that way. It will return as 1.1.6 from shell, but do a gem
list to verify you''re on edge.
soho:~ jathayde$ rails -v
Rails 1.1.6
and you''ll see "1.1.6.5618" as the version number.
soho:~ jathayde$ gem list
*** LOCAL GEMS ***
actionmailer (1.2.5.5618, 1.2.5)
Service layer for easy email delivery and testing.
actionpack (1.12.5.5618, 1.12.5)
Web-flow and rendering framework putting the VC in MVC.
actionwebservice (1.1.6.5618, 1.1.6)
Web service support for Action Pack.
activerecord (1.14.4.5618, 1.14.4)
Implements the ActiveRecord pattern for ORM.
activesupport (1.3.1.5618, 1.3.1)
Support and utility classes used by the Rails framework.
rails (1.1.6.5618, 1.1.6)
Web-application framework with template engine, control-flow layer,
and ORM.
EnjoY!
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boboroshi wrote:> Drew, Agile v2 requires edge/1.2. I don''t think there''s any way around > it. I would reccomend following Dan Benjamin''s phenomenal step by step > directions here:Bob - Thanks for the help thus far. I do indeed now have Raisl edge/1.2 installed. However I am receiving the very same error I first discussed. Here''s my full trace: drew-olsons-powerbook-g4-15:~/Documents/work/depot drew$ rake db:migrate --trace (in /Users/drew/Documents/work/depot) ** Invoke db:migrate (first_time) ** Invoke environment (first_time) ** Execute environment ** Execute db:migrate == AddPrice: migrating =======================================================-- add_column(:products, :price, :decimal, {:precision=>8, :default=>0, :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.[] /Applications/Locomotive2/Bundles/rmagickRailsSept2006_ppc.locobundle/framework/lib/ruby/gems/1.8/gems/activerecord-1.14.4/lib/active_record/connection_adapters/abstract/schema_statements.rb:259:in `type_to_sql'' /Applications/Locomotive2/Bundles/rmagickRailsSept2006_ppc.locobundle/framework/lib/ruby/gems/1.8/gems/activerecord-1.14.4/lib/active_record/connection_adapters/abstract/schema_statements.rb:122:in `add_column'' /Applications/Locomotive2/Bundles/rmagickRailsSept2006_ppc.locobundle/framework/lib/ruby/gems/1.8/gems/activerecord-1.14.4/lib/active_record/migration.rb:273:in `method_missing'' /Applications/Locomotive2/Bundles/rmagickRailsSept2006_ppc.locobundle/framework/lib/ruby/gems/1.8/gems/activerecord-1.14.4/lib/active_record/migration.rb:257:in `say_with_time'' /Applications/Locomotive2/Bundles/rmagickRailsSept2006_ppc.locobundle/framework/lib/ruby/1.8/benchmark.rb:293:in `measure'' /Applications/Locomotive2/Bundles/rmagickRailsSept2006_ppc.locobundle/framework/lib/ruby/gems/1.8/gems/activerecord-1.14.4/lib/active_record/migration.rb:257:in `say_with_time'' /Applications/Locomotive2/Bundles/rmagickRailsSept2006_ppc.locobundle/framework/lib/ruby/gems/1.8/gems/activerecord-1.14.4/lib/active_record/migration.rb:271:in `method_missing'' ./db/migrate//002_add_price.rb:3:in `real_up'' /Applications/Locomotive2/Bundles/rmagickRailsSept2006_ppc.locobundle/framework/lib/ruby/gems/1.8/gems/activerecord-1.14.4/lib/active_record/migration.rb:210:in `migrate'' /Applications/Locomotive2/Bundles/rmagickRailsSept2006_ppc.locobundle/framework/lib/ruby/1.8/benchmark.rb:293:in `measure'' /Applications/Locomotive2/Bundles/rmagickRailsSept2006_ppc.locobundle/framework/lib/ruby/gems/1.8/gems/activerecord-1.14.4/lib/active_record/migration.rb:210:in `migrate'' /Applications/Locomotive2/Bundles/rmagickRailsSept2006_ppc.locobundle/framework/lib/ruby/gems/1.8/gems/activerecord-1.14.4/lib/active_record/migration.rb:333:in `migrate'' /Applications/Locomotive2/Bundles/rmagickRailsSept2006_ppc.locobundle/framework/lib/ruby/gems/1.8/gems/activerecord-1.14.4/lib/active_record/migration.rb:328:in `migrate'' /Applications/Locomotive2/Bundles/rmagickRailsSept2006_ppc.locobundle/framework/lib/ruby/gems/1.8/gems/activerecord-1.14.4/lib/active_record/migration.rb:295:in `up'' /Applications/Locomotive2/Bundles/rmagickRailsSept2006_ppc.locobundle/framework/lib/ruby/gems/1.8/gems/activerecord-1.14.4/lib/active_record/migration.rb:286:in `migrate'' /Applications/Locomotive2/Bundles/rmagickRailsSept2006_ppc.locobundle/framework/lib/ruby/gems/1.8/gems/rails-1.1.6/lib/tasks/databases.rake:4 /Applications/Locomotive2/Bundles/rmagickRailsSept2006_ppc.locobundle/framework/lib/ruby/gems/1.8/gems/rake-0.7.1/lib/rake.rb:387:in `execute'' /Applications/Locomotive2/Bundles/rmagickRailsSept2006_ppc.locobundle/framework/lib/ruby/gems/1.8/gems/rake-0.7.1/lib/rake.rb:387:in `execute'' /Applications/Locomotive2/Bundles/rmagickRailsSept2006_ppc.locobundle/framework/lib/ruby/gems/1.8/gems/rake-0.7.1/lib/rake.rb:357:in `invoke'' /Applications/Locomotive2/Bundles/rmagickRailsSept2006_ppc.locobundle/framework/lib/ruby/1.8/thread.rb:135:in `synchronize'' /Applications/Locomotive2/Bundles/rmagickRailsSept2006_ppc.locobundle/framework/lib/ruby/gems/1.8/gems/rake-0.7.1/lib/rake.rb:350:in `invoke'' /Applications/Locomotive2/Bundles/rmagickRailsSept2006_ppc.locobundle/framework/lib/ruby/gems/1.8/gems/rake-0.7.1/lib/rake.rb:1906:in `run'' /Applications/Locomotive2/Bundles/rmagickRailsSept2006_ppc.locobundle/framework/lib/ruby/gems/1.8/gems/rake-0.7.1/lib/rake.rb:1906:in `run'' /Applications/Locomotive2/Bundles/rmagickRailsSept2006_ppc.locobundle/framework/lib/ruby/gems/1.8/gems/rake-0.7.1/bin/rake:7 /Applications/Locomotive2/Bundles/rmagickRailsSept2006_ppc.locobundle/framework/bin/rake:18 drew-olsons-powerbook-g4-15:~/Documents/work/depot drew$ -- Posted via http://www.ruby-forum.com/. --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group. 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