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We sometimes say "✂️ newline after `private`" in a code review (e.g.
https://github.com/rails/rails/pull/18546#discussion_r23188776,
https://github.com/rails/rails/pull/34832#discussion_r244847195).
Now `Layout/EmptyLinesAroundAccessModifier` cop have new enforced style
`EnforcedStyle: only_before` (https://github.com/rubocop-hq/rubocop/pull/7059).
That cop and enforced style will reduce the our code review cost.
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- When lazy load hooks were triggered we were using
`Object.instance_eval` which evaluates the block in the context of
the class being passed. Most of the time that class was a
`Class`. If one wants to define a instance method on the class then
it wasn't possible.
```ruby
class A; end;
A.instance_eval do
def foo
puts 'bar'
end
end
A.new.foo #> NoMethodError: undefined method `foo`
A.foo #> bar
```
- This PR checks what object is passed when triggering the hooks and
either call `class_eval` or `instance_eval`. My rational and assumptions being
that if an instance of a class is passed, then the blocks needs to
evaluate in the context of that instance (i.e. defining a method
should only define it on that instance).
On the other hand, if a Class or Module is passed when triggering
hooks, then defining a method should define it on the class itself
- #32776 Pushed me to introduce this change
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Fixes commit 10bf93ef92a70ae511036134290bf0e2de184b5c created to solve issue #30025
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Provide run_once: true option to on_load in case you want a hook only to be executed once. This may be useful in cases where executing a hook several times may have undesired side effects
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This reverts commit 3420a14590c0e6915d8b6c242887f74adb4120f9, reversing
changes made to afb66a5a598ce4ac74ad84b125a5abf046dcf5aa.
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[ci skip]
This commit adds some docs that explain how `LazyLoadHooks.on_load` method
works.
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Fix for issue https://github.com/rails/rails/issues/25784
Prior to this commit the lazy_load_hooks.rb file contained important lazy load
hooks. Since [7c90d91](https://github.com/rails/rails/commit/7c90d91c3c43bdbba25d38589aed0e2940af3bc8) the [documentation](http://api.rubyonrails.org/files/activesupport/lib/active_support/lazy_load_hooks_rb.html) did not display
the comments in this file as the docs for load hooks.
This commit wraps the code within this file in a module so we can display the
documentation for `ActiveSupport` load hooks. By extending `ActiveSupport` with
this module, all the methods within it should still be accessible through
`ActiveSupport`.
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Removed some useless docstrings and no-doc'ed some.
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's/[ \t]*$//' -i {} \;)
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without the need for Railtie. Specifically, the following hooks were added:
* before_configuration: this hook is run immediately after the Application class
comes into existence, but before the user has added any configuration. This is
the appropriate place to set configuration for your plugin
* before_initialize: This is run after all of the user's configuration has completed,
but before any initializers have begun (in other words, it runs right after
config/environments/{development,production,test}.rb)
* after_initialize: This is run after all of the initializers have run. It is an
appropriate place for forking in a preforking setup
Each of these hooks may be used via ActiveSupport.on_load(name) { }. In all these cases, the context inside the block will be the Application object. This means that for simple cases, you can use these hooks without needing to create a Railtie.
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should run during framework load do:
ActiveSupport.on_load(:action_controller) do
# Code run in the context of AC::Base
end
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add lazy_load_hooks.rb, which allows us to declare code that
should be run at some later time. For instance, this allows
us to defer requiring ActiveRecord::Base at boot time purely
to apply configuration. Instead, we register a hook that should
apply configuration once ActiveRecord::Base is loaded.
With these changes, brings down total boot time of a
new app to 300ms in production and 400ms in dev.
TODO: rename base_hook
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