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NIKOLAY SVERCHKOV
@ssnickolay
ANYTHING
NEW
RAILS 6?
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No content
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#saintprubyconf @ssnickolay
evilmartians.com
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#saintprubyconf @ssnickolay
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ANYTHING
NEW
RAILS 6?
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ANYTHING
IMPORTANT
RAILS 6?
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LET’S
COMPARE!
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HISTORY OF
RELEASES
RAILS *.0: FEATURE-X
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#saintprubyconf @ssnickolay
RAILS 2.0
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#saintprubyconf @ssnickolay
RAILS 2.0
Action Pack: Resources RESTful
Action Pack: Multiview respond_to
Action Pack: Security
CRSF protection via
protect_from_forgery
Action Pack: Exception rescue_from
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#saintprubyconf @ssnickolay
RAILS 2.0
Active Record: Performance
QUERY CACHE!
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MVC
2010
RAILS 3.0
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#saintprubyconf @ssnickolay
RAILS 3.0
config.gem !-> Bundler
ARel
Railties, Active Model, …
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#saintprubyconf @ssnickolay
RAILS 3.0
MERGE OF
MERB AND RAILS
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#saintprubyconf @ssnickolay
RAILS 2: LEGACY APP
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#saintprubyconf @ssnickolay
*RAILS 3.0: TRUE
ActiveRecord 3.0.5 is twice as slow as
ActiveRecord 2.3.2. In a simple benchmark
within a clean rails framework it is
1.43 times slower.
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#saintprubyconf @ssnickolay
*RAILS 3.0: TRUE
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#saintprubyconf @ssnickolay
RAILS 4.0: MATURE
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#saintprubyconf @ssnickolay
RAILS 5.0: NOT ONLY HTML
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#saintprubyconf @ssnickolay
WHY WE SHOULD
UPDATE OUR
PROJECT?
RAILS 4.* !=> RAILS 5.0
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#saintprubyconf @ssnickolay
RAILS 6.0
❓❓
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#saintprubyconf @ssnickolay
RAILS 6.0
Parallel testing
Multi DB
Action Text
Action Mailbox
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#saintprubyconf @ssnickolay
RAILS 6.0
gem ‘parallel_tests’
Parallel testing
Multi DB
Action Text
Action Mailbox
⭐ 2,567
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#saintprubyconf @ssnickolay
RAILS 6.0
gem ‘parallel_tests’
gem ‘octopus’
Parallel testing
Multi DB
Action Text
Action Mailbox
⭐ 2,349
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#saintprubyconf @ssnickolay
RAILS 6.0
gem ‘parallel_tests’
gem ‘octopus’
WYSIWYG
Parallel testing
Multi DB
Action Text
Action Mailbox
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#saintprubyconf @ssnickolay
RAILS 6.0
gem ‘parallel_tests’
gem ‘octopus’
WYSIWYG
Parallel testing
Multi DB
Action Text
Action Mailbox
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#saintprubyconf @ssnickolay
RAILS 6.0
gem ‘parallel_tests’
gem ‘octopus’
-- skip-action-text
- - skip-action-mailbox
Parallel testing
Multi DB
Action Text
Action Mailbox
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RAILS 6.0: WEBPACKER
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#saintprubyconf @ssnickolay
RAILS 6.0:
CONTINUE USING SPROCKETS
(╯°□°)╯︵ ┻━┻
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ONE
SKIP
TO RULE
THEM ALL
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#saintprubyconf @ssnickolay
$ rails new -- skip-rails
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#saintprubyconf @ssnickolay
$ rails new -- skip-rails
Action Mailbox
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#saintprubyconf @ssnickolay
$ rails new -- skip-rails
Action Mailbox
Action Text
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#saintprubyconf @ssnickolay
$ rails new -- skip-rails
Action Mailbox
Action Text
Sprockets
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#saintprubyconf @ssnickolay
$ rails new -- skip-rails
Action Mailbox
Action Text
Sprockets
Turbolinks
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#saintprubyconf @ssnickolay
ANYTHING
NEW
RAILS 6?
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#saintprubyconf @ssnickolay
NO
ANYTHING
NEW
RAILS 6?
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@ssnickolay
Nikolay Sverchkov
@ssnickolay
THANK YOU!
@evilmartians
http://evl.ms/blog
http://evl.ms/telegram
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Rails 6 sucks
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Rails 6 sucks
who the hell does
he think he is?
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No content
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Second Chance
ANYTHING
NEW
RAILS 6?
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#saintprubyconf @ssnickolay
RAILS 6.0
MULTIPLE
DATABASE
SUPPORT
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#saintprubyconf @ssnickolay
gem ‘octopus’
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#saintprubyconf @ssnickolay
gem ‘octopus’
FOCUSED ON
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#saintprubyconf @ssnickolay
RAILS 6.0: MULTI DB
MULTI DB =
DB SHARDING =
+
+ +
VERTICAL OR HORIZONTAL
PARTITIONING / REPLICATION
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#saintprubyconf @ssnickolay
RAILS 6.0: MULTI DB
RAILS DID NOT HAVE
ADEQUATE* MULTI DB
SUPPORT
*https://github.com/ankane/multiverse
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#saintprubyconf @ssnickolay
RAILS 6.0: MULTI DB
MULTI DB !!=
DATABASE SHARDING
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#saintprubyconf @ssnickolay
RAILS 6.0: MULTI DB
MULTI DB !!=
DATABASE SHARDING
?
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#saintprubyconf @ssnickolay
RAILS 6.0: MULTI DB
MULTI DB !!=
DATABASE SHARDING
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#saintprubyconf @ssnickolay
AT LEAST 12 HUGE PRS
FROM @EILEENCODES
RAILS 6.0: MULTI DB
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#saintprubyconf @ssnickolay
RAILS 6.0: !||TESTING
PARALLEL
UNIVERSAL
TESTING
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#saintprubyconf @ssnickolay
RAILS 6.0: !||TESTING
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#saintprubyconf @ssnickolay
$ rspec
N PROCESSES
HOW ‘parallel_tests’ WORKS
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#saintprubyconf @ssnickolay
HOW ‘parallel_tests’ WORKS
$ rspec
$ rspec spec/group1
$ rspec spec/group3
N PROCESSES
$ rspec spec/group2
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#saintprubyconf @ssnickolay
HOW ‘parallel_tests’ WORKS
$ rspec
$ rspec spec/group1
$ rspec spec/group3
THE
FINAL
OUTPUT
N PROCESSES
$ rspec spec/group2
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#saintprubyconf @ssnickolay
HOW ‘parallel_tests’ WORKS
rspec
OUTPUT
parallel_tests
rspec
rspec
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#saintprubyconf @ssnickolay
HOW ‘Rails 6 ||’ WORKS
OUTPUT
Rails6
QUEUE
TESTS
EXECUTOR
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#saintprubyconf @ssnickolay
RAILS 6.0: !||TESTING
PROCESSES
OR
THREADS?
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#saintprubyconf @ssnickolay
RAILS 6.0: !||TESTING
BOTH!
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BOTH!
# default (as Github uses)
parallelize(workers: 2, with: :processes)
# or
parallelize(workers: 2, with: :threads)
RAILS 6.0: !||TESTING
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#saintprubyconf @ssnickolay
RAILS 6.0: !||TESTING
*ONE SMALL PROBLEM
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WHEN YOU
RELEASE
THE NEW
FEATURE
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#saintprubyconf @ssnickolay
gem ‘parallel_tests’ contributors
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gem ‘rails’ contributors
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#saintprubyconf @ssnickolay
RAILS 6.0: !||TESTING
FAST TESTS
OUT OF THE
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USE BETTER SOLUTION
FOR SPEEDING UP TESTS
TEST-PROF
WE ARE WATCHING YOU
github.com
/palkan/test-prof
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RAILS 6.0: ACTION MAILBOX
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RAILS 6.0: ACTION TEXT
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RAILS 6.0:
ACTION [TEXT && MAILBOX]
OUT OF THE
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THE SMALL
BUT
SIGNIFICANT
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RAILS 6.0: ACTION CABLE TESTING
*ALSO IN
RSPEC 4
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#saintprubyconf @ssnickolay
RAILS 6.0: BULK INSERTS
# Insert multiple records, performing an upsert
# when records have duplicate ISBNs
Book.upsert_all([
{ title: 'Rework', author: 'David', isbn: '1' },
{ title: 'Eloquent Ruby', author: 'Russ', isbn: '1' }
],
unique_by: { columns: %w[ isbn ] })
*gem ‘activerecord-import`
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#saintprubyconf @ssnickolay
RAILS 6.0:
MULTI DB && BULK INSERT &&
PARALLEL TESTING
OUT OF THE
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#saintprubyconf @ssnickolay
RAILS 5.2 !-> RAILS 6.1
!->
… … !-> carrierwave
‘active_storage’
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BUT ON
THE OTHER
HAND…
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#saintprubyconf @ssnickolay
RAILS != RUBY
☠ ‘octopus’
☠ ‘multiverse’
☠ ‘parallel_tests’
☠ ‘activerecord-import’
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RAILS 6.0: B-SIDES AND RARITIES
evilmartians.com/chronicles
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#saintprubyconf @ssnickolay
RAILS 6.0: OTHER
https://bogdanvlviv.com/posts/ruby/rails/what-is-new-in-rails-6_0.html#other-links
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@bogdanvlviv
COMMUNITY
WE SHOULD BE GRATEFUL FOR THE WORK THEY DO
A HUGE JOB
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@bogdanvlviv
COMMUNITY
WE SHOULD BE GRATEFUL FOR THE WORK THEY DO
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#saintprubyconf @ssnickolay
expect(Rails6).to be_revolutionary
RSpec!::Expectations!::ExpectationNotMetError:
expected: revolutionary value
got: evolutionary
RAILS 6.0: EXPECTATIONS
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#saintprubyconf @ssnickolay
FRESH BLOOD
LIKE…
RAILS 7.0?: REVOLUTION
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#saintprubyconf @ssnickolay
RAILS 7.0?: REVOLUTION
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#saintprubyconf @ssnickolay
RAILS 7.0?: REVOLUTION
VIEWS
ECTO
CONTEXTS
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#saintprubyconf @ssnickolay
RAILS 7.0?: REVOLUTION
VIEWS
ECTO
CONTEXTS
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I am thinking
about the
Rails future
will their community accept
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I am thinking
about the
Rails future
Have you heard
about Hanami?
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#saintprubyconf @ssnickolay
RAILS 3.0
MERGE OF
MERB AND RAILS
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#saintprubyconf @ssnickolay
RAILS 7.0 ???
MERGE OF
HANAMI AND RAILS
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#saintprubyconf @ssnickolay
RAILS 7.0 ???
MERGE OF
HANAMI AND RAILS
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#saintprubyconf @ssnickolay
I ♥ RAILS
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#saintprubyconf @ssnickolay
I RAILS
DEVELOPERS*
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#saintprubyconf @ssnickolay
I RAILS
DEVELOPERS*
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#saintprubyconf @ssnickolay
OSS PROJECT’S COMMUNITY
I WANT FEATURE X
DON'T TOUCH ANYTHING
CAN I USE IT
ON WINDOWS?
YOU ARE DEVELOPING
TOO SLOWLY. I LEAVE!
AGAIN BREAKING CHANGES.
GO TO HELL!
YOUR DOCS
IS OUT OF DATE.
DOES NOT WORK
WITH RUBY 1.9.3
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#saintprubyconf @ssnickolay
OSS PROJECT’S COMMUNITY
I WANT FEATURE X
YOU ARE DEVELOPING
TOO SLOWLY. I LEAVE!
AGAIN BREAKING CHANGES.
GO TO HELL!
YOUR DOCS
IS OUT OF DATE.
DOES NOT WORK
WITH RUBY 1.9.3
WE MISS YOU
NICK
CAN I USE IT
ON WINDOWS?
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#saintprubyconf @ssnickolay
OSS PROJECT’S COMMUNITY
I WANT FEATURE X
DON'T TOUCH ANYTHING
YOU ARE DEVELOPING
TOO SLOWLY. I LEAVE!
AGAIN BREAKING CHANGES.
GO TO HELL!
YOUR DOCS
IS OUT OF DATE.
DOES NOT WORK
WITH RUBY 1.9.3
DUKE NUKEM
CAN I USE IT
ON WINDOWS?
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#saintprubyconf @ssnickolay
DHH IS
COOL
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#saintprubyconf @ssnickolay
https://rubyonrails.org/doctrine/
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#saintprubyconf @ssnickolay
QUIZ*
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DHH HAS NEVER BEEN IN RUSSIA
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#saintprubyconf @ssnickolay
ANYTHING
NEW
RAILS 6?
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#saintprubyconf @ssnickolay
ANYTHING
NEW
RAILS 6?
NO
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#saintprubyconf @ssnickolay
ANYTHING
NEW
RAILS 6?
BUT
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#saintprubyconf @ssnickolay
ANYTHING
NEW
RAILS 6?
YES
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#saintprubyconf @ssnickolay
vs
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#saintprubyconf @ssnickolay
vs
JUST CHOOSE WHICH SIDE YOU ARE ON
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@ssnickolay
Nikolay Sverchkov
@ssnickolay
THANK YOU!
@evilmartians
http://evl.ms/blog
http://evl.ms/telegram