This commit conflicts with savepoint support.

This reverts commit 045713ee.

Conflicts:

	activerecord/lib/active_record/connection_adapters/postgresql_adapter.rb

Improve documentation for DatabaseStatements#transactions and AbstractAdapter#transactional_fixtures, especially with regard to support for nested transactions.

* Make the old deprecated relative_url_root still set the value as it's still used by mongrel
* Set the default from the ENV value when the file is required, not at runtime.

Add additional condition to handle the case where default_url_options is only defined in the controller, not the view.
Signed-off-by: NMichael Koziarski <michael@koziarski.com>

Make refresh_specs more resilient. Always add vendor/gems to gem search path. Use Gem.clear_paths to ensure we get a current searcher.
Signed-off-by: NMichael Koziarski <michael@koziarski.com>

Simplified the logging format for parameters (don't include controller, action, and format as duplicates) [DHH]

Signed-off-by: NMichael Koziarski <michael@koziarski.com>
[#1310 state:committed]

Signed-off-by: NMichael Koziarski <michael@koziarski.com>
[#1310 state:committed]

Signed-off-by: NDavid Heinemeier Hansson <david@loudthinking.com>

This reverts commit 2dcdcf15.

It is not necessary to store QueryCache in a thread local since the cache is local to the connection object which is managed by the connection pool

Signed-off-by: NDavid Heinemeier Hansson <david@loudthinking.com>

Dup local assigns for partial collections so nil values doesn't get overwritten [#1250 state:resolved]

Don't rely on string CoreExtensions in StringInquirer since it is sometimes expected to work before the core extension are loaded
Signed-off-by: NDavid Heinemeier Hansson <david@loudthinking.com>

Signed-off-by: NDavid Heinemeier Hansson <david@loudthinking.com>

Fixed plugin generator so that generated unit tests would subclass ActiveSupport::TestCase, also introduced a helper script to reduce the needed require statements. [#1137 state:committed]
Signed-off-by: NDavid Heinemeier Hansson <david@loudthinking.com>

Fixed that ActiveResource#post would post an empty string when it shouldn't be posting anything (Paolo Angelini) [#525 state:committed]

Update the default deprecation message to not promise that theres more info at the Rails site [#776 state:resolved]

Update non-gems distributions to use sqlite3 as the default, matching the "rails" command default [#1270 status:committed]
Signed-off-by: NDavid Heinemeier Hansson <david@loudthinking.com>