Three basic refactors in this PR:
* We extracted the logic into a method object. We now don't define a tone of extraneous methods on Hash, even if they were private.
* Extracted blocks of the case statement into methods that do the work. This makes the logic more clear.
* Extracted complicated if clauses into their own query methods. They often have two or three terms, this makes it much easier to see what they _do_.
We took care not to refactor too much as to not break anything, and put comments where we suspect tests are missing.
We think ActiveSupport::XMLMini might be a good candidate to move to a plugin in the future.
When you add one callack in two separate `set_callback` calls - it is
only called once.
When you do it in one `set_callback` call - it is called twice.
This violates the principle of least astonishment for me. Duplicating
callback is usually an error. There is a correct and obvious way to do
anything without this "feature".
If you want to do
before_save :clear_balance, :calculate_tax, :clear_balance
or whatever, you should better do
before_save :carefully_calculate_tax
def carefully_calculate_tax
clear_balance
calculate_tax
clear_balance
end
And this even opens gates for some advanced refactorings, unlike the
first approach.
My assumptions are:
- Principle of least astonishment is violated, when callbacks are either
prevented from duplication, or not.
- Duplicating callbacks is usually an error. When it is intentional -
it's a smell of a bad design and can be approached without abusing
this "feature".
My suggestion is: do not allow duplicating callbacks in one callback
call, like it is not allowed in separate callbacks call.
The encoding scheme (e.g. ☠ -> "\u2620") was broken for characters
not in the Basic Multilingual Plane. It is possible to escape them
for json using the weird encoding scheme of a twelve-character
sequence representing the UTF-16 surrogate pair (e.g. '𠜎' ->
"\u270e\u263a") but this wasn't properly handled in the escaping code.
Since raw UTF-8 is allowed in json, it was decided to simply pass
through the raw bytes rather than attempt to escape them.
Summary of the changes:
* Add thread_safe gem.
* Use thread safe cache for digestor caching.
* Replace manual synchronization with ThreadSafe::Cache in Relation::Delegation.
* Replace @attribute_method_matchers_cache Hash with ThreadSafe::Cache.
* Use TS::Cache to avoid the synchronisation overhead on listener retrieval.
* Replace synchronisation with TS::Cache usage.
* Use a preallocated array for performance/memory reasons.
* Update the controllers cache to the new AS::Dependencies::ClassCache API.
The original @controllers cache no longer makes much sense after @tenderlove's
changes in 7b6bfe84f3 and f345e2380c.
* Use TS::Cache in the connection pool to avoid locking overhead.
* Use TS::Cache in ConnectionHandler.
The Time.time_with_datetime_fallback, Time.utc_time and Time.local_time
methods were added to handle the limitations of Ruby's native Time
implementation. Those limitations no longer apply so we are deprecating
them in 4.0 and they will be removed in 4.1.
The to_time_in_current_zone method doesn't match the naming of the methods
for converting to ActiveSupport::TimeWithZone on Time and DateTime. Since
DateTime inherits from Date that has led to confusion with some users
using the to_time_in_current_zone method with DateTime instances and having
the time part dropped and the UTC offset lost.
This commit fixes this by deprecating the old method and adding a new
in_time_zone method which matches the naming for DateTime and Time. This
should prevent accidently dropping times and UTC offsets when converting
DateTime instances to ActiveSupport::TimeWithZone.
This commit adds a convenience method for converting a string to an
ActiveSupport::TimeWithZone instance using the configured Time.zone or
another passed as an argument.
Sometimes, on Mac OS X, programmers accidentally press Option+Space
rather than just Space and don’t see the difference. The problem is
that Option+Space writes a non-breaking space (0XA0) rather than a
normal space (0x20).
This commit removes all the non-breaking spaces inadvertently
introduced in the comments of the code.
When there are missing components in the Hash returned by
Date._parse only the date components should default to the
value of Time.zone.now, the time components should all
default to zero.
Chrome, Safari and Firefox serialize Date objects to strings such
as 'Mon May 28 2012 00:00:00 GMT-0700 (PDT)'. When these strings
are parsed the zone is interpreted as 'GMT-0700' which doesn't
exist in the TzInfo list of timezones.
By taking advantage of the improved date/time handling in 1.9.3
we can use `Date._parse` and the `:offset` value which is parsed
correctly.
Three tests were amended to make them pass:
1. test_parse_with_old_date
This needed changing to a different value because the original
value was before EST was adopted so was being changed to a
LMT (Local Mean Time) value after the change. It didn't before
because `DateTime` just has offsets from UTC not timezones.
2. test_parse_should_not_black_out_system_timezone_dst_jump
Changed the implementation of this test as the stubs were
dependent on internal implementation details of the test.
Confirmed that the modified test still failed when the
implementation of `parse` was restored to pre-#5571.
3. test_parse_should_black_out_app_timezone_dst_jump
Ditto.
Closes#5770.
This behavior mattered under Ruby 1.8, but that doesn't matter now
that we don't support it.
In addition, we don't want to proxy the #class method. A test was added
to prevent against regressions.
