logs for a certain block, change the log level for that block.
* ActiveSupport::BufferedLogger#open_log is deprecated. This method should
not have been public in the first place.
* ActiveSupport::BufferedLogger's behavior of automatically creating the
directory for your log file is deprecated. Please make sure to create the
directory for your log file before instantiating.
* ActiveSupport::BufferedLogger#auto_flushing is deprecated. Either set the
sync level on the underlying file handle like this:
f = File.open('foo.log', 'w')
f.sync = true
ActiveSupport::BufferedLogger.new f
Or tune your filesystem. The FS cache is now what controls flushing.
* ActiveSupport::BufferedLogger#flush is deprecated. Set sync on your
filehandle, or tune your filesystem.
Scope in migrations can be defined by adding suffix in filename,
like: 01_a_migration.blog.rb. Such migration have blog scope.
Scope is automatically added while copying migrations from engine,
so if you want to revert all of the migrations from given engine,
you can just run db:migrate with SCOPE, like:
rake db:migrate SCOPE=blog
Example:
ActiveRecord::Migrator.migrate(path) do |migration|
migration.name =~ /User/
end
The above example will migrate only migrations with User in
the name
49ebe51 fixed copying migrations, but existing migrations would still
trigger warnings. The proper way to compare migrations is to ignore
origin lines - if migration is identical it means that we can
silently skip it, regardless where it comes from.
There was a bug in ActiveRecord::Migration.copy method, which
prevented adding special comment about the origin of migration.
Because of that, the check if migration is identical or if it's
not and should be skipped was always saying that migration is
skipped, which was causing additional useless warnings about
skipped migrations.
Removing this feature causes boost in performance when using Ruby 1.9.
Ruby 1.9 started to do implicit conversions using `to_ary` and `to_str`
in some STDLIB methods (like Array#join). To do such implicit conversions,
Ruby 1.9 always dispatches the method and rescues the NoMethodError exception
in case one is raised.
Therefore, since the whiners feature defined NilClass#method_missing, such
implicit conversions for nil became much, much slower. In fact, just defining
NilClass#method_missing (even without the whiners feature) already causes a
massive slow down. Here is a snippet that shows such slow down:
require "benchmark"
Benchmark.realtime { 1_000.times { [nil,nil,nil].join } }
class NilClass
def method_missing(*args)
raise NoMethodError
end
end
Benchmark.realtime { 1_000.times { [nil,nil,nil].join } }
