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This PR moves the `schema_migration` to `migration_context` so that we can access the `schema_migration` per connection. This does not change behavior of the SchemaMigration if you are using one database. This also does not change behavior of any public APIs. `Migrator` is private as is `MigrationContext` so we can change these as needed. We now need to pass a `schema_migration` to `Migrator` so that we can run migrations on the right connection outside the context of a rake task. The bugs this fixes were discovered while debugging the issues around the SchemaCache on initialization with multiple database. It was clear that `get_all_versions` wouldn't work without these changes outside the context of a rake task (because in the rake task we establish a connection and change AR::Base.connection to the db we're running on). Because the `SchemaCache` relies on the `SchemaMigration` information we need to make sure we store it per-connection rather than on ActiveRecord::Base. [Eileen M. Uchitelle & Aaron Patterson] |
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| .gitignore | ||
| CHANGELOG.md | ||
| MIT-LICENSE | ||
| railties.gemspec | ||
| Rakefile | ||
| RDOC_MAIN.rdoc | ||
| README.rdoc | ||
= Railties -- Gluing the Engine to the Rails Railties is responsible for gluing all frameworks together. Overall, it: * handles the bootstrapping process for a Rails application; * manages the +rails+ command line interface; * and provides the Rails generators core. == Download The latest version of Railties can be installed with RubyGems: * gem install railties Source code can be downloaded as part of the Rails project on GitHub * https://github.com/rails/rails/tree/master/railties == License Railties is released under the MIT license: * https://opensource.org/licenses/MIT == Support API documentation is at * https://api.rubyonrails.org Bug reports can be filed for the Ruby on Rails project here: * https://github.com/rails/rails/issues Feature requests should be discussed on the rails-core mailing list here: * https://groups.google.com/forum/?fromgroups#!forum/rubyonrails-core