Added a VERSION parameter to the migrate task that allows you to do "rake migrate VERSION=34" to migrate to the 34th version traveling up or down depending on the current version. Added ActiveRecord::Migrator.migrate that can figure out whether to go up or down based on the target version and the current

git-svn-id: http://svn-commit.rubyonrails.org/rails/trunk@1780 5ecf4fe2-1ee6-0310-87b1-e25e094e27de

1 files changed, 15 insertions, 0 deletions

diff --git a/activerecord/test/migration_test.rb b/activerecord/test/migration_test.rb
index 9e84978395..d5081e5335 100644
--- a/activerecord/test/migration_test.rb
+++ b/activerecord/test/migration_test.rb
@@ -182,5 +182,20 @@ if ActiveRecord::Base.connection.supports_migrations?
       assert !Person.column_methods_hash.include?(:last_name)
       assert_raises(ActiveRecord::StatementInvalid) { Reminder.column_methods_hash }
     end
+    
+    def test_migrator_going_down_due_to_version_target
+      ActiveRecord::Migrator.up(File.dirname(__FILE__) + '/fixtures/migrations/', 1)
+      ActiveRecord::Migrator.migrate(File.dirname(__FILE__) + '/fixtures/migrations/', 0)
+
+      assert !Person.column_methods_hash.include?(:last_name)
+      assert_raises(ActiveRecord::StatementInvalid) { Reminder.column_methods_hash }
+
+      ActiveRecord::Migrator.migrate(File.dirname(__FILE__) + '/fixtures/migrations/')
+
+      Person.reset_column_information
+      assert Person.column_methods_hash.include?(:last_name)
+      assert Reminder.create("content" => "hello world", "remind_at" => Time.now)
+      assert_equal "hello world", Reminder.find(:first).content
+    end
   end
 end
\ No newline at end of file