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A few slides about the migration from Rails 4 t...
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Adam Nowak
July 06, 2016
Programming
1
260
A few slides about the migration from Rails 4 to Rails 5
based on github.com/netguru/reminders app
Adam Nowak
July 06, 2016
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Transcript
Rails 5 is here a few slides about the migration
from Rails ~4
None
my slides are not about the features - you have
to check them out on your own!
I need a TODO app for test
but let’s upgrade something more useful
None
https://github.com/ netguru/reminders
Gemfile gem "rails", "~> 4" gem "coffee-rails" gem "bootstrap-datepicker-rails" gem
"decent_exposure" gem "draper" gem "jquery-rails", "4.0.4" # version 4.0.5 breaks jquery-datatables
UPDATING!
Step 1 - changing relevant gems gem "rails", "~> 4”
Step 1 - changing relevant gems gem "rails", "~> 4”
gem "rails", "~> 5"
Step 1 - changing relevant gems bundle update rails
None
None
Step 2 - updating gems along the way bundle update
rails railties
meh!
Step 2 - updating gems along the way bundle update
rails railties sass-rails
nope!
Step 2 - updating gems along the way bundle update
rails railties sass-rails coffee-rails slim-rails
still missing something!
Step 3 - strict dependencies gem "jquery-rails", "4.0.4" # version
4.0.5 breaks jquery-datatables
Step 3 - strict dependencies gem "jquery-rails", "4.0.4" # version
4.0.5 breaks jquery-datatables gem "jquery-rails"
Step 3 - strict dependencies gem "sass-rails", "~> 5.0"
gem "sass-rails"
Step 3 - strict dependencies bundle update rails railties sass-rails
coffee-rails slim-rails jquery-rails
None
better, but still
let’s have a look again
None
https://github.com/ evrone/quiet_assets/pull/ 51
so we don’t need it anymore
Step 1 - changing relevant gems gem "quiet_assets"
Step 1 - changing relevant gems gem "quiet_assets" gem "quiet_assets"
Step 2 - updating gems along the way bundle update
rails railties coffee- rails slim-rails
pretty good, we need to solve rspec-rails
Step 2 - updating gems along the way bundle update
rails railties coffee- rails slim-rails rspec-rails
None
hahahha, you fool
zoom in
None
there should be puma here, right?
Step 1 - changing relevant gems gem "thin" gem "thin"
Step 2 - updating gems along the way bundle update
rails railties coffee- rails slim-rails rspec-rails
yeah
step 1&2 done - our Gemfile is ok
Step 3 - draper /Users/adamo/.rbenv/versions/2.2.3/lib/ ruby/gems/2.2.0/gems/draper-2.1.0/lib/ draper.rb:5:in `require': cannot load
such file -- active_model/serializers/ xml (LoadError)
It turns out, draper gem isn’t quite ready for Rails
5
It turns out, draper gem isn’t quite ready for Rails
5
I’ve used drape gem instead but you should follow https://github.com/drapergem/
draper/pull/752
Step 3 - draper gem "draper" gem "draper"
Step 3 - draper bundle
drape is pretty much the same as draper but you
have to change the namespace
let’s create base decorator (it should have been here before)
Step 3 - draper class BaseDecorator < Drape::Decorator; end class
ProjectDecorator < BaseDecorator
awesome!
Step 4 - rollbar bundle update rollbar # 2.8.0 wasn’t
good enough
push it!
None
webrick? it’s so <=Rails4
None
Step 4 - puma gem „puma" bundle
None
success!
Step 4 - rails:update bin/rake rails:update
keep going
Step 4 - rspec bundle update rspec-core
it turns out, you have to be strict this time
Step 4 - rspec gem "rspec-rails", "~> 3.5" bundle
yep!
Step 5 - decent_exposure /Users/adamo/code/reminders/app/ controllers/application_controller.rb: 2:in `<class:ApplicationController>': undefined method
`decent_configuration' for ApplicationController:Clas
well, read the wiki https://github.com/hashrocket/ decent_exposure/wiki/Api-changes-in- version-3#undefined-method- decent_configuration
Step 5 - decent_exposure decent_configuration do strategy DecentExposure::StrongParametersStrategy end
Step 6 - rails-controller- testing 245 examples, 3 failures NoMethodError:
assert_template has been extracted to a gem. To continue using it, add `gem 'rails-controller-testing'` to your Gemfile.
Step 6 - rails-controller- testing gem „rails-controller-testing" bundle
YES
Step 6 - rack-mini-profiler bundle update rack-mini-profiler
QL
it works:)
https://github.com/ netguru/reminders/pull/35
–no one ever “migration will be easy”
–me, now “but please do it”
t.hanks! adam nowak / @lubieniebieski 06/07/2016