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instiki/vendor/rails/railties/lib/rails_generator/generators/components/migration/USAGE

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Checkout of Instiki Trunk 1/21/2007.
2007-01-22 14:43:50 +01:00
Description:
Upgrade to Rails 2.0.2 Upgraded to Rails 2.0.2, except that we maintain vendor/rails/actionpack/lib/action_controller/routing.rb from Rail 1.2.6 (at least for now), so that Routes don't change. We still get to enjoy Rails's many new features. Also fixed a bug in Chunk-handling: disable WikiWord processing in tags (for real this time).
2007-12-21 08:48:59 +01:00
Stubs out a new database migration. Pass the migration name, either
CamelCased or under_scored, and an optional list of attribute pairs as arguments.
Checkout of Instiki Trunk 1/21/2007.
2007-01-22 14:43:50 +01:00
Upgrade to Rails 2.0.2 Upgraded to Rails 2.0.2, except that we maintain vendor/rails/actionpack/lib/action_controller/routing.rb from Rail 1.2.6 (at least for now), so that Routes don't change. We still get to enjoy Rails's many new features. Also fixed a bug in Chunk-handling: disable WikiWord processing in tags (for real this time).
2007-12-21 08:48:59 +01:00
A migration class is generated in db/migrate prefixed by the latest migration number.
Checkout of Instiki Trunk 1/21/2007.
2007-01-22 14:43:50 +01:00
Upgrade to Rails 2.0.2 Upgraded to Rails 2.0.2, except that we maintain vendor/rails/actionpack/lib/action_controller/routing.rb from Rail 1.2.6 (at least for now), so that Routes don't change. We still get to enjoy Rails's many new features. Also fixed a bug in Chunk-handling: disable WikiWord processing in tags (for real this time).
2007-12-21 08:48:59 +01:00
You can name your migration in either of these formats to generate add/remove
column lines from supplied attributes: AddColumnsToTable or RemoveColumnsFromTable
Checkout of Instiki Trunk 1/21/2007.
2007-01-22 14:43:50 +01:00
Example:
Upgrade to Rails 2.0.2 Upgraded to Rails 2.0.2, except that we maintain vendor/rails/actionpack/lib/action_controller/routing.rb from Rail 1.2.6 (at least for now), so that Routes don't change. We still get to enjoy Rails's many new features. Also fixed a bug in Chunk-handling: disable WikiWord processing in tags (for real this time).
2007-12-21 08:48:59 +01:00
`./script/generate migration AddSslFlag`
Checkout of Instiki Trunk 1/21/2007.
2007-01-22 14:43:50 +01:00
Upgrade to Rails 2.0.2 Upgraded to Rails 2.0.2, except that we maintain vendor/rails/actionpack/lib/action_controller/routing.rb from Rail 1.2.6 (at least for now), so that Routes don't change. We still get to enjoy Rails's many new features. Also fixed a bug in Chunk-handling: disable WikiWord processing in tags (for real this time).
2007-12-21 08:48:59 +01:00
With 4 existing migrations, this creates the AddSslFlag migration in
db/migrate/005_add_ssl_flag.rb
`./script/generate migration AddTitleBodyToPost title:string body:text published:boolean`
This will create the AddTitleBodyToPost in db/migrate/005_add_title_body_to_post.rb with
this in the Up migration:
add_column :posts, :title, :string
add_column :posts, :body, :text
add_column :posts, :published, :boolean
And this in the Down migration:
remove_column :posts, :published
remove_column :posts, :body
remove_column :posts, :title
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