My talk at Euruko 2016

1. Remote internship
for Ruby Developers
Ivan Nemytchenko, @inem
Developer Advocate at GitLab
http://inem.at

2. Software developer since 2002

3. 2008

15. → SOLID principles
→ Design partterns
→ Refactoring techniques
→ Architecture types
→ Code smells identification

16. "From Rails way to
modular
architecture"
"Stop being Rails
Developer"

17. RailsHurts.com

18. Don't be the best
student in class

22. What intern gets:
→ project in portfolio
→ development from idea to production
→ teamwork experience
→ remote work experience

23. Technologies
→ Twitter Bootstrap
→ Haml, Sass, jQuery
→ Rails, Sinatra or Lotus(Hanami)

24. Requirements
→ basic ruby/rails knowledge
→ 20 hours/week min

27. Need a test to
choose the best!

30. Test → Aptitude test

31. Part 1 requirements
→ registration
→ list of products
→ create product
→ show product

32. Part 2

33. Part 2

34. Part 2
→ 3 different types of users
→ different registration forms
→ different types of products
→ different permissions

35. Part 3

36. Part 3
→ Ability to "purchase a product"
→ Work with external API
→ Complicated "purchase" logic

37. Final result:

38. validates :avatar, presence: true, if: "role == Role.with_name(:shop) || role == Role.with_name(:administrator)"
validates :password, length: { minimum: 10 },if: "role == Role.with_name(:administrator)"
validates :name, :last_name, :passport_photo, :birth_date, presence: true, if: "role == Role.with_name(:administrator)"
validates :shop_title, presence: true, if: "role == Role.with_name(:shop)"
validates :password, length: { minimum: 8 }, if: "role == Role.with_name(:shop)"
validates :password, length: { minimum: 6 }, if: "role == Role.with_name(:user)"

39. def buy
@product = Product.find params[:id]
if @product.pro or
not @product.user.is_a? Shop or
current_user.email.split('.')[-1] == 'com'
flash[:alert] = "You can't buy this product"
else
photos = RestClient.get 'http://jsonplaceholder.typicode.com/photos/'
photo = JSON.parse(photos).sample
thumbnail = photo['thumbnailUrl']
url = photo['url']
thumbnail_color = thumbnail.split('/')[-1].to_i 16
url_color = url.split('/')[-1].to_i 16
if thumbnail_color > url_color
flash[:alert] = 'An error happened'
BuyMailer.admins_buy_fail(current_user).deliver_now!
else
flash[:notice] = 'Success'
BuyMailer.user_buy_success(current_user, url).deliver_now!
todos = RestClient.post 'http://jsonplaceholder.typicode.com/todos', {}
todo_id = JSON.parse(todos)['id']
BuyMailer.admins_buy_success(todo_id).deliver_now!
end
end
redirect_to :back
end

40. def buy
@product = Product.find(params[:id])
if current_user.can_buy?
if @product.sell_able?
photo_url = get_photo
if photo_url.nil?
flash[:alert] = "Sorry, _you_ can't buy this product. Try again later"
AdministratorMailer.buy_error(current_user.email).deliver_later
redirect_to :back
else
post = HTTParty.post("http://jsonplaceholder.typicode.com/todos")
post_id = post['id']
AdministratorMailer.successfull_buy(post_id).deliver_later
UserMailer.successfull_buy(current_user, photo_url).deliver_later
redirect_to(:back)
end
else
flash[:alert] = "Sorry, we can't sell _this_ product"
redirect_to :back
end
else
flash[:alert] = "Sorry, _you_ cant buy _anything_"
redirect_to(:back)
end
end

41. Common mistakes:
1. Ignoring levels of abstraction
2. Gemification
3. Nowbody knows about service objects
4. Put business logic in random places
5. Bad naming

42. Next steps:
1. Group hangout codereview
2. Lecture about patterns
3. Refactoring
4. Cross code review

43. Project work

44. Project work:
Results

45. railshurts.com/quiz

46. Internship automatization

47. github.com/lenshq

48. Problems

51. Problems
→ collective irresponsibility
→ inability to communicate
→ lack of motivation
→ a lack of mentors

53. BURNOUT

54. Mistakes
→ Making it free?
→ Too big teams (2 is enough)
→ Allowing everyone to participate in
projects

55. Worked out not so well:
→ Project work
Worked out well:
→ Aptitude test

56. Today

57. Junior needs
→ real tasks to work on
→ some achievment to put
into portfolio
→ whole development
cycle experience
→ team work experience

69. Seniors

70. → routine tasks
→ research tasks
→ nice to have features
→ low priority features
→ missing features in their
favorite open source
project
→ side project ideas

84. If I do it again:
→ more "tests"
→ call for mentors
→ turn mentor's experience into their
"tests"
→ reject newbies

85. inem.at
inem@bk.ru
@inem