In short:
expand_cache_key(element) should not equal expand_cache_key([element])
This way a fragment cache key for an index page with only a single
element in the collection is different than a fragment cache for a
typical show page for that element.
This can be turned off by setting `config.reload_classes_only_on_change` to false.
Extensions like Active Record should add their respective files like db/schema.rb and db/structure.sql to `config.watchable_files` if they want their changes to affect classes reloading.
Thanks to https://github.com/paneq/active_reload and Pastorino for the inspiration. <3
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.
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 } }
A patch has been provided earlier and we have asked for feedback:
https://gist.github.com/1437939
Except one case, all other cases showed improvements in boot time.
