migrating to rails 3, an in-house developers perspective
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Chetan Krishna and Mark Johnson
Migrating To Rails 3 An In-house Developer's
Perspective
Wednesday, May 18, 2011
Who Are We?
• Our Company
• Publicly Traded
• > 150 M/year Rev
• > 600 Employees
• Offices World Wide
• Us
• Development Team
• CIO Rails Advocate
• Develop & Maintain
• 24x7 Support
• Web Apps > 12yrs
• Rails since 2006
Wednesday, May 18, 2011
Challenges
Approaches
Wednesday, May 18, 2011
Legacy Environment
Not OONot MVCNo Testing
Wednesday, May 18, 2011
Adoption Challenges
Maintenance
Integration
Technology
Migration
Wednesday, May 18, 2011
Our Application Environment
Legacy Non-Rails AppsWeb & Client Server11 Apps
Commercial AppsFinancials and HR& Sabrix (sales tax)
Rails 1 - 7 AppsRails 2 - 56 AppsRails 3 - 5 Apps
Wednesday, May 18, 2011
Wednesday, May 18, 2011
Sales Management
Quotes/Orders
Leads Sales
PRESE
Reports
Dashboards
Accounts
Partners
Customer Directory
CalendarAsterisk
Wednesday, May 18, 2011
Wednesday, May 18, 2011
Approaches
Creating new apps
Background jobs
Data Sharing
App Configuration
Authentication
Wednesday, May 18, 2011
Approaches
Creating new apps
Background jobs
Data Sharing
App Configuration
Authentication
Wednesday, May 18, 2011
68 apps in production
Wednesday, May 18, 2011
Templates
• create only what we need
• update specific parts of the app
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Templates
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Templates
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Templates
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Templates
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Templates
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Templates
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Templates
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Templates
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Templates
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Templates
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Templates
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Templates
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Templates
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Approaches
Creating new apps
Background jobs
Data Sharing
App Configuration
Authentication
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Background Jobs
flexible schedule
notify on exceptions
daemons
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Background jobs
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Background jobs
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Background jobs
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Background jobs
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Background jobs
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Background jobs
Wednesday, May 18, 2011
Approaches
Creating new apps
Background jobs
Data Sharing
App Configuration
Authentication
Wednesday, May 18, 2011
Data Sharing
Data SynchronizationReading and Writing between apps
Wednesday, May 18, 2011
Data Sharing
Data SynchronizationReading and Writing between apps
Wednesday, May 18, 2011
4D
Core Data Synchronization
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4D
Rails
Core Data Synchronization
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Topic Subscribers
Publisher
Subscribers
Subscribers
Subscribers
Topic
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Topic Subscribers
app/models/company.rb
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Topic Subscriberslib/daemons/push_updates_to_sales.rb
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Wednesday, May 18, 2011
Data Sharing
Data SynchronizationReading and Writing between apps
Wednesday, May 18, 2011
Quotes/Orders
Leads Sales
PRESE
Reports
Dashboards
Accounts
Partners
Customer Directory
CalendarAsterisk
Shared DB for Multiple Apps
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Shared DB for Multiple Apps
Sales AppLeads Appleads opportunities
sales_db
Wednesday, May 18, 2011
Shared DB for Multiple Appsleads/app/models/opportunity.rb
leads/app/models/opportunity_resource.rb
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Different DBs for Single App
Quotes/Orders
Leads Sales
PRESE
Reports
Dashboards
Accounts
Partners
Customer Directory
CalendarAsterisk
Wednesday, May 18, 2011
Different DBs for Single App
leads opportunities
sales_db
partners_db
Reporter App
Wednesday, May 18, 2011
Different DBs for Single App
app/models/registration.rb
app/models/opportunity.rb
reporter/config/database.yml
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reporter_db
localhost
Different DBs for Single App
Reporter App sales_dbsales_db
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reporter_db
localhost
Different DBs for Single App
sales_dbReporter
Appsales_db(replicated)
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Approaches
Creating new apps
Background jobs
Data Sharing
App Configuration
Authentication
Wednesday, May 18, 2011
Authentication
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• Existing
• Domain Cookie
• Encrypted Credentials
• Distributed
Single Sign-on / Sign-off
• New
• Rails as Master
• Support Legacy Apps
• Support 3rd Party Apps
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Implemented Oauth2 Provider and Client
http://www.railsatwork.com/2010/10/implementing-oauth-provider-part-1.html
Application AuthenticationProvider
Browser
Access Token
Domain CookieDomain Cookie
Authorization Token
Wednesday, May 18, 2011
Approaches
Creating new apps
Background jobs
Data Sharing
App Configuration
Authentication
Wednesday, May 18, 2011
Wednesday, May 18, 2011
database.yml Setup
Wednesday, May 18, 2011
database.yml Setup
Wednesday, May 18, 2011
database.yml Setup
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Application Specific Configuration Data
app/models/opportunity_resource.rb
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Application Specific Configuration Data
Wednesday, May 18, 2011
Application Specific Configuration Data
Wednesday, May 18, 2011
Application Specific Configuration Data
Wednesday, May 18, 2011
Application Specific Configuration Data
Wednesday, May 18, 2011
Application Specific Configuration Data
Wednesday, May 18, 2011
Application Specific Configuration Data
Wednesday, May 18, 2011
Application Specific Configuration Data
Wednesday, May 18, 2011
Application Specific Configuration Data
Wednesday, May 18, 2011
Oh, $#*&!
Did that e-mail from development just get sent to the client?
Wednesday, May 18, 2011
ActionMailer Interceptor
Wednesday, May 18, 2011
ActionMailer Interceptor
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ActionMailer Interceptor
Wednesday, May 18, 2011
ActionMailer Interceptorconfig/environments/development.rb
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ActionMailer Interceptor
Wednesday, May 18, 2011
Questions
Chetan Krishnackrishna@opnet.com
Mark Johnsonmjohnson@opnet.com
Rails At Workhttp://www.railsatwork.com/
Wednesday, May 18, 2011
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