Migrating To Rails 3, An In-house Developers Perspective

1. Migrating To Rails 3 An In-house Developer's Perspective Chetan Krishna and Mark Johnson Wednesday, May 18, 2011

2. Who Are We? • Us • Development Team • Our Company • CIO Rails Advocate • Publicly Traded • Develop & Maintain • > 150 M/year Rev • 24x7 Support • > 600 Employees • Web Apps > 12yrs • Ofﬁces World Wide • Rails since 2006 Wednesday, May 18, 2011

3. Challenges Approaches Wednesday, May 18, 2011

4. Legacy Environment Not OO Not MVC No Testing Wednesday, May 18, 2011

5. Adoption Migration Challenges Integration Maintenance Technology Wednesday, May 18, 2011

6. Our Application Environment Legacy Non-Rails Apps Web & Client Server 11 Apps Rails 1 - 7 Apps Rails 2 - 56 Apps Rails 3 - 5 Apps Commercial Apps Financials and HR & Sabrix (sales tax) Wednesday, May 18, 2011

7. Wednesday, May 18, 2011

8. Sales Management Customer Directory Accounts Quotes/Orders Leads Sales Reports Partners PRESE Dashboards Asterisk Calendar Wednesday, May 18, 2011

10. Creating new apps Background jobs Data Sharing Authentication App Conﬁguration Approaches Wednesday, May 18, 2011

12. 68 apps in production Wednesday, May 18, 2011

13. Templates • create only what we need • update speciﬁc parts of the app Wednesday, May 18, 2011

14. Templates Wednesday, May 18, 2011

28. Background Jobs daemons ﬂexible schedule notify on exceptions Wednesday, May 18, 2011

29. Background jobs Wednesday, May 18, 2011

36. Data Synchronization Reading and Writing between apps Data Sharing Wednesday, May 18, 2011

38. Core Data Synchronization 4D Wednesday, May 18, 2011

39. Core Data Synchronization 4D Rails Wednesday, May 18, 2011

40. Topic Subscribers Subscribers Publisher Topic Subscribers Subscribers Wednesday, May 18, 2011

41. Topic Subscribers app/models/company.rb Wednesday, May 18, 2011

45. Topic Subscribers lib/daemons/push_updates_to_sales.rb Wednesday, May 18, 2011

49. Shared DB for Multiple Apps Customer Directory Accounts Quotes/Orders Leads Sales Reports Partners PRESE Dashboards Asterisk Calendar Wednesday, May 18, 2011

50. Shared DB for Multiple Apps leads opportunities Leads App Sales App sales_db Wednesday, May 18, 2011

51. Shared DB for Multiple Apps leads/app/models/opportunity.rb leads/app/models/opportunity_resource.rb Wednesday, May 18, 2011

52. Different DBs for Single App Customer Directory Accounts Quotes/Orders Leads Sales Reports Partners PRESE Dashboards Asterisk Calendar Wednesday, May 18, 2011

53. Different DBs for Single App leads opportunities Reporter App sales_db partners_db Wednesday, May 18, 2011

54. Different DBs for Single App reporter/conﬁg/database.yml app/models/opportunity.rb app/models/registration.rb Wednesday, May 18, 2011

55. Different DBs for Single App localhost reporter_db Reporter App sales_db Wednesday, May 18, 2011

56. Different DBs for Single App localhost reporter_db Reporter App sales_db sales_db (replicated) Wednesday, May 18, 2011

58. Authentication Wednesday, May 18, 2011

59. Single Sign-on / Sign-off • Existing • Domain Cookie • Encrypted Credentials • New • Distributed • Rails as Master • Support Legacy Apps • Support 3rd Party Apps Wednesday, May 18, 2011

60. Implemented Oauth2 Provider and Client Authorization Token Application Authentication Access Token Provider Domain Cookie Domain Cookie Browser http://www.railsatwork.com/2010/10/implementing-oauth-provider-part-1.html Wednesday, May 18, 2011

63. database.yml Setup Wednesday, May 18, 2011

66. Application Speciﬁc Conﬁguration Data app/models/opportunity_resource.rb Wednesday, May 18, 2011

67. Application Speciﬁc Conﬁguration Data Wednesday, May 18, 2011

75. E-mail Oh, $#*&! Did that e-mail from development just get sent to the client? Wednesday, May 18, 2011

76. ActionMailer Interceptor Wednesday, May 18, 2011

79. ActionMailer Interceptor conﬁg/environments/development.rb Wednesday, May 18, 2011

81. Questions Chetan Krishna Mark Johnson ckrishna@opnet.com mjohnson@opnet.com Rails At Work http://www.railsatwork.com/ Wednesday, May 18, 2011

Migrating To Rails 3, An In-house Developers Perspective

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