Ruby Meditation #15 May 13, 2017 Dnipro, I Coworking Hub

1. cimon.io
Алексей Осипенко
cimon.io
«URL generation in Rails»
Hello I’m
Alexey

2. cimon.io
Алексей Осипенко
cimon.io
«Susanin»

3. cimon.io
Rails 5.1

4. cimon.io
Rails 5.1
Direct
Resolved routes
&

5. cimon.io
Rails 5.1
direct(:homepage) {
"http://www.rubyonrails.org"
}

6. cimon.io
Rails 5.1
direct(:homepage) {
"http://www.rubyonrails.org"
}
homepage_url()

7. cimon.io
Rails 5.1
direct :commentable do |model|
[ model, anchor: model.dom_id ]
end

8. cimon.io
Rails 5.1
commentable_url(resource)
direct :commentable do |model|
[ model, anchor: model.dom_id ]
end

9. cimon.io
What's the problem?

10. cimon.io
resources :companies do
resources :projects do
resources :comments
resources :issues do
resources :comments
end
end
end

11. cimon.io
companies_projects_issues_comments_path(
comment.issue.project.company,
comment.issue.project,
comment.issue,
comment
)

12. cimon.io
comments_path(comment)

13. cimon.io
url_for(comment)

14. cimon.io
url_for([comment])

15. cimon.io
everything is
resource
or
collection

16. cimon.io
everything is
resource
or
collection
or
parent

17. cimon.io
link_to(resource.name, [resource])

18. cimon.io
Admin::UsersController
Client::ProfilesController
PublicApp::ProfilesController

19. cimon.io
Admin::UsersController
Client::ProfilesController
PublicApp::ProfilesController
link_to resource.name, [:admin, resource]
link_to resource.name, [:client, resource]
link_to resource.name, [:public, resource]

20. cimon.io
Admin::UsersController
Client::ProfilesController
PublicApp::ProfilesController
link_to resource.name, [resource]
link_to resource.name, [resource]
link_to resource.name, [resource]

21. cimon.io
Admin::UsersController
Client::ProfilesController
PublicApp::ProfilesController
link_to resource.name, [resource]
link_to resource.name, [resource]
link_to resource.name, [resource]
User

22. cimon.io
Admin::ProjectsController
Client::MyProjectsController
PublicApp::ProjectsController
link_to resource.name, [resource]
link_to resource.name, [resource]
link_to resource.name, [resource]
Project

23. cimon.io
url_for [:edit, :client, resource]

24. cimon.io
url_for [:edit, resource]

25. cimon.io
url_for [
:edit,
:client,
resource.project.company,
resource.project,
resource
]

26. namespace :client do
resource :profiles
end
namespace :admin do
resources :users
end
namespace :public_app do
resource :profiles
end

27. module Client
class ApplicationController
def url_for([User] = resource)
super([:client, resource])
end
end
end

28. module Client
class ApplicationController
def users_url(resource)
client_users_url(resource)
end
end
end

29. module Client
class ApplicationController
def url_for([..., User, ...] = resource)
url_for([..., :client, resource, ...])
end
end
end

30. module Client
class ApplicationController
def url_for([..., User, ...] = resource)
url_for([..., resource.company, resource, ...])
end
def url_for([..., Company, ...])
url_for([:client, current_company])
end
end
end

31. url_for([user])
url_for([:client, current_company, user])

32. cimon.io
user company, user :client, company, user

33. module Client
class ApplicationController
susanin({
[User] => ->(user) { [user.company, user]},
[Company] => ->(company) { [:client, company] },
})
end
end

34. susanin({
[:client] => ->(_) { [:jericho] },
[User] => ->(r) { [r.company, r] },
[Project] => ->(r) { [:client, r] },
[Company] => ->(r) { [:client, r] },
})

35. susanin({
[:client] => ->(_) { [:jericho] },
[User] => ->(r) { [r.company, r] },
[Project] => ->(r) { [:client, r] },
[Company] => ->(r) { [:client, r] },
})
url_for([user])
url_for([:jericho, company, user])
jericho_company_user_url(company, user)

36. susanin({
[:client] => ->(_) { [:jericho] },
[User] => ->(r) { [r.company, r] },
[Project] => ->(r) { [:client, r] },
[Company] => ->(r) { [:client, r] },
})
url_for([:edit, user])
url_for([:edit, company, user])
url_for([:edit, :client, company, user])
url_for([:edit, :jericho, company, user])
edit_jericho_company_user_url(company, user)

37. susanin({
[User] => ->(r) { [:client, r] },
[:frontend, User] => ->(_, r) { [:public_app, r] },
})
[user] => [:client, user]
[:frontend, user] => [:public_app, user]
[:edit, user] => [:edit, :client, user]
[:edit, :frontend, user] => [:edit, :public_app, user]

38. susanin({
[User] => ->(r) { [:client, r] },
[:frontend, User] => ->(_, r) { [:public_app, r] },
})
url_for([:frontend, user])
url_for([:client, :frontend, user])
url_for([:public_app, user])

39. [A, B, C] => (a, b, c) { [1] }
[A] => (a) { [2] }
[A, B] => (a, b) { [3] }
[a, b, c] => [1]

40. [A, B] => ->(a, b) { 1 }
[A] => ->(a) { 2 }
[A, B, C] => ->(a, b, c) { 3 }
[a, b, c] => [1, c]

41. [A, B] => ->(a, b) { [a] }
[A] => ->(a) { 2 }
[A, B, C] => ->(a, b, c) { 3 }
[a, b, c] => [2, c]

42. cimon.io

43. alexey@cimon.io
Спасибо
за
внимание
telegram@aratak
alexey.osipenko@fb.me

44. https://t.me/itextrapolation