• 1997 Got my first computer (Intel Pentium MMX 166Mhz) • 1997 Started using BBS (上海热线) and the Internet via 33.6Kbps modem • 1997 Made my first ever HTML web page in Microsoft Frontpage Express 4 Saturday, 17 November 12
• 1997 Got my first computer (Intel Pentium MMX 166Mhz) • 1997 Started using BBS (上海热线) and the Internet via 33.6Kbps modem • 1997 Made my first ever HTML web page in Microsoft Frontpage Express • 1998 Moved to Australia 4 Saturday, 17 November 12
• 1997 Got my first computer (Intel Pentium MMX 166Mhz) • 1997 Started using BBS (上海热线) and the Internet via 33.6Kbps modem • 1997 Made my first ever HTML web page in Microsoft Frontpage Express • 1998 Moved to Australia • 2001 Started playing with Perl (雷傲), ASP (动⺴⽹网) and PHP (Discuz!) forum software 4 Saturday, 17 November 12
• 1997 Got my first computer (Intel Pentium MMX 166Mhz) • 1997 Started using BBS (上海热线) and the Internet via 33.6Kbps modem • 1997 Made my first ever HTML web page in Microsoft Frontpage Express • 1998 Moved to Australia • 2001 Started playing with Perl (雷傲), ASP (动⺴⽹网) and PHP (Discuz!) forum software • 2004 Started learning PHP and JavaScript in TAFE (pre-university bridge) 4 Saturday, 17 November 12
• 1997 Got my first computer (Intel Pentium MMX 166Mhz) • 1997 Started using BBS (上海热线) and the Internet via 33.6Kbps modem • 1997 Made my first ever HTML web page in Microsoft Frontpage Express • 1998 Moved to Australia • 2001 Started playing with Perl (雷傲), ASP (动⺴⽹网) and PHP (Discuz!) forum software • 2004 Started learning PHP and JavaScript in TAFE (pre-university bridge) • 2006 Started working part-time as a junior developer whilst studying in university 4 Saturday, 17 November 12
• 1997 Got my first computer (Intel Pentium MMX 166Mhz) • 1997 Started using BBS (上海热线) and the Internet via 33.6Kbps modem • 1997 Made my first ever HTML web page in Microsoft Frontpage Express • 1998 Moved to Australia • 2001 Started playing with Perl (雷傲), ASP (动⺴⽹网) and PHP (Discuz!) forum software • 2004 Started learning PHP and JavaScript in TAFE (pre-university bridge) • 2006 Started working part-time as a junior developer whilst studying in university • 2006 Discovered Ruby and Ruby on Rails, and switched to OS X because of Textmate 4 Saturday, 17 November 12
• 1997 Got my first computer (Intel Pentium MMX 166Mhz) • 1997 Started using BBS (上海热线) and the Internet via 33.6Kbps modem • 1997 Made my first ever HTML web page in Microsoft Frontpage Express • 1998 Moved to Australia • 2001 Started playing with Perl (雷傲), ASP (动⺴⽹网) and PHP (Discuz!) forum software • 2004 Started learning PHP and JavaScript in TAFE (pre-university bridge) • 2006 Started working part-time as a junior developer whilst studying in university • 2006 Discovered Ruby and Ruby on Rails, and switched to OS X because of Textmate • 2008 Started professionally as a web developer (HTML, CSS, PHP and JavaScript) 4 Saturday, 17 November 12
• 1997 Got my first computer (Intel Pentium MMX 166Mhz) • 1997 Started using BBS (上海热线) and the Internet via 33.6Kbps modem • 1997 Made my first ever HTML web page in Microsoft Frontpage Express • 1998 Moved to Australia • 2001 Started playing with Perl (雷傲), ASP (动⺴⽹网) and PHP (Discuz!) forum software • 2004 Started learning PHP and JavaScript in TAFE (pre-university bridge) • 2006 Started working part-time as a junior developer whilst studying in university • 2006 Discovered Ruby and Ruby on Rails, and switched to OS X because of Textmate • 2008 Started professionally as a web developer (HTML, CSS, PHP and JavaScript) • 2010 Started programming in Ruby full time (mostly) 4 Saturday, 17 November 12
• 1997 Got my first computer (Intel Pentium MMX 166Mhz) • 1997 Started using BBS (上海热线) and the Internet via 33.6Kbps modem • 1997 Made my first ever HTML web page in Microsoft Frontpage Express • 1998 Moved to Australia • 2001 Started playing with Perl (雷傲), ASP (动⺴⽹网) and PHP (Discuz!) forum software • 2004 Started learning PHP and JavaScript in TAFE (pre-university bridge) • 2006 Started working part-time as a junior developer whilst studying in university • 2006 Discovered Ruby and Ruby on Rails, and switched to OS X because of Textmate • 2008 Started professionally as a web developer (HTML, CSS, PHP and JavaScript) • 2010 Started programming in Ruby full time (mostly) • 2010 Started contributing to many open source ruby projects, including Ruby on Rails 4 Saturday, 17 November 12
Dr Nic Williams Author of Rails Textmate bundle, works at Engine Yard Ryan Bigg Author of Rails 3 in Action, 2011 Ruby Hero Pat Allan Author of Thinking Sphinx, 2009 Ruby Hero Xavier Shay Author of Cane and Enki, works at Square Ben Schwarz Member of W3C’s CSS Working Group Darcy Laycock Author of API Smith, 2011 Ruby Hero Justin French Author of Formtastic Daniel Neighman Author of Warden, works at Square Ben Hoskings Author of Babushka Marcus Crafter Author of Sprinkle Charlie Somerville Author of Slash language, a talented 18 year old! Jack Chen (Chendo) Contributor to iTerm2 Mikel Lindsaar Author of Mail, rails core committer John Barton Cofounder of Goodfil.ms, dev manager of Envato for 3+ years Paul Annesley Built 99designs, works at SitePoint Gareth Townsend Founder of Melbourne Cocoaheads Ivan Vanderbyl Founder of Crashlog Glen Maddern Cofounder of Goodfil.ms Alan Harper Author of Rubyzip James Healy Author of PDF::Reader, maintainer of Prawn Florian Hanke Author of Picky 7 Saturday, 17 November 12
THREE STAGES OF PHOTOGRAPHY 1. You discuss camera equipment. 三流摄影师谈器材。 2. You discuss shooting techniques. ⼆二流摄影师谈技术。 3. You discuss creative and thought processes. ⼀一流摄影师谈思想。 10 Saturday, 17 November 12
THREE STAGES OF PROGRAMMERS 1. You discuss tools and editors. 三流程序员谈⼯工具。 2. You discuss programming techniques. ⼆二流程序员谈技术。 3. You discuss creative and thought processes. ⼀一流程序员谈思想。 11 Saturday, 17 November 12
THREE STAGES OF SOFTWARE DEVELOPMENT 1. You are being paid for what you do. 三流程序员提供汗⽔水。 2. You are being paid for what you know. ⼆二流程序员提供脑⼒力。 12 Saturday, 17 November 12
THREE STAGES OF SOFTWARE DEVELOPMENT 1. You are being paid for what you do. 三流程序员提供汗⽔水。 2. You are being paid for what you know. ⼆二流程序员提供脑⼒力。 3. You are being paid for your experience. ⼀一流程序员提供经验。 12 Saturday, 17 November 12
• What interests you? • Product? 产品控 • Technology? 技术控 • Maths and algorithm? 算法控 • Money? ⾦金钱控 • Choose where to work wisely WHERE TO START 14 Saturday, 17 November 12
• What interests you? • Product? 产品控 • Technology? 技术控 • Maths and algorithm? 算法控 • Money? ⾦金钱控 • Choose where to work wisely • But it probably doesn’t matter (as much) for the first year or two WHERE TO START 14 Saturday, 17 November 12
THE ART OF ASKING QUESTIONS • Don’t be vague (“Can I use Rails for XYZ?” is not a good question). 模棱两可惹⼈人厌。 • Give context and details (e.g. error stack trace). 提供上下⽂文与出错报告。 15 Saturday, 17 November 12
THE ART OF ASKING QUESTIONS • Don’t be vague (“Can I use Rails for XYZ?” is not a good question). 模棱两可惹⼈人厌。 • Give context and details (e.g. error stack trace). 提供上下⽂文与出错报告。 • Show that you’ve done your research. 必要的功课先做好。 15 Saturday, 17 November 12
THE ART OF ASKING QUESTIONS • Don’t be vague (“Can I use Rails for XYZ?” is not a good question). 模棱两可惹⼈人厌。 • Give context and details (e.g. error stack trace). 提供上下⽂文与出错报告。 • Show that you’ve done your research. 必要的功课先做好。 • Respect the answers and comments offered to you. 尊重别⼈人给出的答案和意⻅见。 15 Saturday, 17 November 12
THE ART OF ASKING QUESTIONS • Don’t be vague (“Can I use Rails for XYZ?” is not a good question). 模棱两可惹⼈人厌。 • Give context and details (e.g. error stack trace). 提供上下⽂文与出错报告。 • Show that you’ve done your research. 必要的功课先做好。 • Respect the answers and comments offered to you. 尊重别⼈人给出的答案和意⻅见。 • Be mindful of how many questions you ask. 短时间内不要提⼤大量的问题。 15 Saturday, 17 November 12
THE ART OF ASKING QUESTIONS • Don’t be vague (“Can I use Rails for XYZ?” is not a good question). 模棱两可惹⼈人厌。 • Give context and details (e.g. error stack trace). 提供上下⽂文与出错报告。 • Show that you’ve done your research. 必要的功课先做好。 • Respect the answers and comments offered to you. 尊重别⼈人给出的答案和意⻅见。 • Be mindful of how many questions you ask. 短时间内不要提⼤大量的问题。 • Don’t be a Help Vampire! http://slash7.com/2006/12/22/vampires/ 15 Saturday, 17 November 12
BE MINDFUL WHAT YOU SAY • Be nice! Attacking people on Twitter or Weibo is not cool. 基本道德：不攻击他⼈人。 • Make sure you checked your facts. 事实胜于雄辩。 16 Saturday, 17 November 12
BE MINDFUL WHAT YOU SAY • Be nice! Attacking people on Twitter or Weibo is not cool. 基本道德：不攻击他⼈人。 • Make sure you checked your facts. 事实胜于雄辩。 • Deflect office politics. 规避办公室政治。 16 Saturday, 17 November 12
BE MINDFUL WHAT YOU SAY • Be nice! Attacking people on Twitter or Weibo is not cool. 基本道德：不攻击他⼈人。 • Make sure you checked your facts. 事实胜于雄辩。 • Deflect office politics. 规避办公室政治。 • Don’t spread pirate links! 不散播盗版链接。 16 Saturday, 17 November 12
BE MINDFUL WHAT YOU SAY • Be nice! Attacking people on Twitter or Weibo is not cool. 基本道德：不攻击他⼈人。 • Make sure you checked your facts. 事实胜于雄辩。 • Deflect office politics. 规避办公室政治。 • Don’t spread pirate links! 不散播盗版链接。 • Don’t waste energy in endless debates. 不参与⽆无谓的争辩。 Credit: xkcd.com 16 Saturday, 17 November 12
ADJUST CONFIDENCE LEVEL • Aim too low you’ll never improve. ⺫⽬目标定太低，难以进步。 • Aim too high you’ll be depressed. ⺫⽬目标定太⾼高，永追不上。 17 Saturday, 17 November 12
ADJUST CONFIDENCE LEVEL • Aim too low you’ll never improve. ⺫⽬目标定太低，难以进步。 • Aim too high you’ll be depressed. ⺫⽬目标定太⾼高，永追不上。 • So make your goals @variables rather than CONSTANTS. 把⺫⽬目标设为变量，⽽而⾮非常量。 17 Saturday, 17 November 12
THOUGHTS ON SOFTWARE DEVELOPMENT • Second system syndrome - avoid total rewrites. 第⼆二系统综合症——避免重写。 • Software engineering is like playing Starcraft - always check your mini-map. 软件⼯工程有如星际争霸——需经常关注迷你地图，以⼤大局为重。 18 Saturday, 17 November 12
THOUGHTS ON SOFTWARE DEVELOPMENT • Second system syndrome - avoid total rewrites. 第⼆二系统综合症——避免重写。 • Software engineering is like playing Starcraft - always check your mini-map. 软件⼯工程有如星际争霸——需经常关注迷你地图，以⼤大局为重。 • Experience is as important as talent, if not more important. 经验与天赋同重要。 18 Saturday, 17 November 12
THOUGHTS ON SOFTWARE DEVELOPMENT • Second system syndrome - avoid total rewrites. 第⼆二系统综合症——避免重写。 • Software engineering is like playing Starcraft - always check your mini-map. 软件⼯工程有如星际争霸——需经常关注迷你地图，以⼤大局为重。 • Experience is as important as talent, if not more important. 经验与天赋同重要。 • Technical debt is a debt, the longer you wait, the more interests you pay. 技术债务——拖⽋欠越久，偿还越多。 18 Saturday, 17 November 12
THOUGHTS ON SOFTWARE DEVELOPMENT • Second system syndrome - avoid total rewrites. 第⼆二系统综合症——避免重写。 • Software engineering is like playing Starcraft - always check your mini-map. 软件⼯工程有如星际争霸——需经常关注迷你地图，以⼤大局为重。 • Experience is as important as talent, if not more important. 经验与天赋同重要。 • Technical debt is a debt, the longer you wait, the more interests you pay. 技术债务——拖⽋欠越久，偿还越多。 • Choose the application architecture wisely. 谨慎选择软件架构。 18 Saturday, 17 November 12
APPLICATION ARCHITECTURE SHOWCASE • We need a profile system to hold user data. ⽤用户帐户系统。 • The profile system will potentially be used standalone. ⽤用户帐户系统未来可能会被独⽴立使⽤用。 19 Saturday, 17 November 12
APPLICATION ARCHITECTURE SHOWCASE • We need a profile system to hold user data. ⽤用户帐户系统。 • The profile system will potentially be used standalone. ⽤用户帐户系统未来可能会被独⽴立使⽤用。 • We need plugin-able “modules”. 需可插⼊入式模块系统。 19 Saturday, 17 November 12
APPLICATION ARCHITECTURE SHOWCASE • We need a profile system to hold user data. ⽤用户帐户系统。 • The profile system will potentially be used standalone. ⽤用户帐户系统未来可能会被独⽴立使⽤用。 • We need plugin-able “modules”. 需可插⼊入式模块系统。 • There will potentially be 3rd party modules. 未来可能会有第三⽅方开发的模块。 19 Saturday, 17 November 12
APPLICATION ARCHITECTURE SHOWCASE • We need a profile system to hold user data. ⽤用户帐户系统。 • The profile system will potentially be used standalone. ⽤用户帐户系统未来可能会被独⽴立使⽤用。 • We need plugin-able “modules”. 需可插⼊入式模块系统。 • There will potentially be 3rd party modules. 未来可能会有第三⽅方开发的模块。 • Of course, the development timeline is tight. 开发周期很紧凑。 19 Saturday, 17 November 12
PERFECT? NO! • Longer development time. 开发周期过⻓长。 • Can’t guarantee the usefulness of the API layer for 3rd party developers. 不可预知 API 层在未来是否还可有效利⽤用。 21 Saturday, 17 November 12
PERFECT? NO! • Longer development time. 开发周期过⻓长。 • Can’t guarantee the usefulness of the API layer for 3rd party developers. 不可预知 API 层在未来是否还可有效利⽤用。 • More complexity == more chances to screw up. 系统越复杂，越容易出错。 21 Saturday, 17 November 12
EASY, BUT FOR HOW LONG? • One app is more difficult to scale out. 单⼀一系统相对较难向外扩展。 • It is also more difficult to assign tasks. 单⼀一系统相对较难安排团队成员任务。 23 Saturday, 17 November 12
EASY, BUT FOR HOW LONG? • One app is more difficult to scale out. 单⼀一系统相对较难向外扩展。 • It is also more difficult to assign tasks. 单⼀一系统相对较难安排团队成员任务。 • It is more likely to have leaky code. 单⼀一系统相对更难有效封装。 23 Saturday, 17 November 12
A BALANCED SOLUTION IS A GOOD SOLUTION • Don’t over-engineer. 避免过度⼯工程。 • Good degree of separation of concern. 注重关注点分离。 • Internal interfaces are easier than external APIs: 内部接⼝口相对外部 API 更易开发： ‣ @gateway ||= PlatformModuleGateway.new(args) ‣ mod = module_controller(module_name).new(args) ‣ mod.validate_input ‣ mod.render_view 25 Saturday, 17 November 12
Rackspace Private Cloud VM External Providers NGINX Front End HTTP SERVER (Long-polling, Cache, SSL) UNICORN Worker 1 Worker 2 Worker 3 Worker N Request Router Auth Admin Controller Workflow Controler User Data Source (Rails engine modules) Gateway M V C M V C M V C M V C M V C Mailer MySQL Application Server Master Sendmail Active Record ORM UNICORN Worker 1 Worker 2 Worker N Application Server Master Group Manager Roles Manager User Profile Manager Authentication System Permissions Management CRON DFAT Scraper Master Worker Event Machine Country Scraper Regional Scraper Local DB Server Active Record ORM Data Mapper ORM Profile TMP Firewall Firewall UNIX Socket HTTP JSON HTTPS UNIX Socket Client HART Aviation API JSON (SSL) CDC VISA Link 28 Saturday, 17 November 12
Rackspace Private Cloud VM External Providers NGINX Front End HTTP SERVER (Long-polling, Cache, SSL) UNICORN Worker 1 Worker 2 Worker 3 Worker N Request Router Auth Admin Controller Workflow Controler User Data Source (Rails engine modules) Gateway M V C M V C M V C M V C M V C Mailer MySQL Application Server Master Sendmail Active Record ORM UNICORN Worker 1 Worker 2 Worker N Application Server Master Group Manager Roles Manager User Profile Manager Authentication System Permissions Management CRON DFAT Scraper Master Worker Event Machine Country Scraper Regional Scraper Local DB Server Active Record ORM Data Mapper ORM Profile TMP Firewall Firewall UNIX Socket HTTP JSON HTTPS UNIX Socket Client HART Aviation API JSON (SSL) CDC VISA Link 28 Saturday, 17 November 12
Rackspace Private Cloud VM External Providers NGINX Front End HTTP SERVER (Long-polling, Cache, SSL) UNICORN Worker 1 Worker 2 Worker 3 Worker N Request Router Auth Admin Controller Workflow Controler User Data Source (Rails engine modules) Gateway M V C M V C M V C M V C M V C Mailer MySQL Application Server Master Sendmail Active Record ORM UNICORN Worker 1 Worker 2 Worker N Application Server Master Group Manager Roles Manager User Profile Manager Authentication System Permissions Management CRON DFAT Scraper Master Worker Event Machine Country Scraper Regional Scraper Local DB Server Active Record ORM Data Mapper ORM Profile TMP Firewall Firewall UNIX Socket HTTP JSON HTTPS UNIX Socket Client HART Aviation API JSON (SSL) CDC VISA Link 28 Saturday, 17 November 12
Rackspace Private Cloud VM External Providers NGINX Front End HTTP SERVER (Long-polling, Cache, SSL) UNICORN Worker 1 Worker 2 Worker 3 Worker N Request Router Auth Admin Controller Workflow Controler User Data Source (Rails engine modules) Gateway M V C M V C M V C M V C M V C Mailer MySQL Application Server Master Sendmail Active Record ORM UNICORN Worker 1 Worker 2 Worker N Application Server Master Group Manager Roles Manager User Profile Manager Authentication System Permissions Management CRON DFAT Scraper Master Worker Event Machine Country Scraper Regional Scraper Local DB Server Active Record ORM Data Mapper ORM Profile TMP Firewall Firewall UNIX Socket HTTP JSON HTTPS UNIX Socket Client HART Aviation API JSON (SSL) CDC VISA Link 28 Saturday, 17 November 12
Rackspace Private Cloud VM External Providers NGINX Front End HTTP SERVER (Long-polling, Cache, SSL) UNICORN Worker 1 Worker 2 Worker 3 Worker N Request Router Auth Admin Controller Workflow Controler User Data Source (Rails engine modules) Gateway M V C M V C M V C M V C M V C Mailer MySQL Application Server Master Sendmail Active Record ORM UNICORN Worker 1 Worker 2 Worker N Application Server Master Group Manager Roles Manager User Profile Manager Authentication System Permissions Management CRON DFAT Scraper Master Worker Event Machine Country Scraper Regional Scraper Local DB Server Active Record ORM Data Mapper ORM Profile TMP Firewall Firewall UNIX Socket HTTP JSON HTTPS UNIX Socket Client HART Aviation API JSON (SSL) CDC VISA Link 28 Saturday, 17 November 12
Rackspace Private Cloud VM External Providers NGINX Front End HTTP SERVER (Long-polling, Cache, SSL) UNICORN Worker 1 Worker 2 Worker 3 Worker N Request Router Auth Admin Controller Workflow Controler User Data Source (Rails engine modules) Gateway M V C M V C M V C M V C M V C Mailer MySQL Application Server Master Sendmail Active Record ORM UNICORN Worker 1 Worker 2 Worker N Application Server Master Group Manager Roles Manager User Profile Manager Authentication System Permissions Management CRON DFAT Scraper Master Worker Event Machine Country Scraper Regional Scraper Local DB Server Active Record ORM Data Mapper ORM Profile TMP Firewall Firewall UNIX Socket HTTP JSON HTTPS UNIX Socket Client HART Aviation API JSON (SSL) CDC VISA Link 28 Saturday, 17 November 12
Rackspace Private Cloud VM External Providers NGINX Front End HTTP SERVER (Long-polling, Cache, SSL) UNICORN Worker 1 Worker 2 Worker 3 Worker N Request Router Auth Admin Controller Workflow Controler User Data Source (Rails engine modules) Gateway M V C M V C M V C M V C M V C Mailer MySQL Application Server Master Sendmail Active Record ORM UNICORN Worker 1 Worker 2 Worker N Application Server Master Group Manager Roles Manager User Profile Manager Authentication System Permissions Management CRON DFAT Scraper Master Worker Event Machine Country Scraper Regional Scraper Local DB Server Active Record ORM Data Mapper ORM Profile TMP Firewall Firewall UNIX Socket HTTP JSON HTTPS UNIX Socket Client HART Aviation API JSON (SSL) CDC VISA Link 28 Saturday, 17 November 12
Rackspace Private Cloud VM External Providers NGINX Front End HTTP SERVER (Long-polling, Cache, SSL) UNICORN Worker 1 Worker 2 Worker 3 Worker N Request Router Auth Admin Controller Workflow Controler User Data Source (Rails engine modules) Gateway M V C M V C M V C M V C M V C Mailer MySQL Application Server Master Sendmail Active Record ORM UNICORN Worker 1 Worker 2 Worker N Application Server Master Group Manager Roles Manager User Profile Manager Authentication System Permissions Management CRON DFAT Scraper Master Worker Event Machine Country Scraper Regional Scraper Local DB Server Active Record ORM Data Mapper ORM Profile TMP Firewall Firewall UNIX Socket HTTP JSON HTTPS UNIX Socket Client HART Aviation API JSON (SSL) CDC VISA Link 28 Saturday, 17 November 12
ONE SIZE FITS ALL? • Scrum, Kanban, XP, Lean, Crystal... whatever... • TDD? BDD? Test first, or verify later? • If no one shoe/shirt/hat size can fit all, then why should development processes be any different? 37 Saturday, 17 November 12
ONE SIZE FITS ALL? • Scrum, Kanban, XP, Lean, Crystal... whatever... • TDD? BDD? Test first, or verify later? • If no one shoe/shirt/hat size can fit all, then why should development processes be any different? • There will always be people trying to sell you something. 37 Saturday, 17 November 12
ONE SIZE FITS ALL? • Scrum, Kanban, XP, Lean, Crystal... whatever... • TDD? BDD? Test first, or verify later? • If no one shoe/shirt/hat size can fit all, then why should development processes be any different? • There will always be people trying to sell you something. • Use whatever works for your team, your project and your culture! 37 Saturday, 17 November 12
CONTRIBUTE TO OPEN SOURCE PROJECTS • Reading code is just as important as writing code. 阅读代码与编写代码同重要。 • Learn from the masters. 向⼤大师们学习。 39 Saturday, 17 November 12
CONTRIBUTE TO OPEN SOURCE PROJECTS • Reading code is just as important as writing code. 阅读代码与编写代码同重要。 • Learn from the masters. 向⼤大师们学习。 • Take some, give some - sharing is awesome. 不断收获的同时，别忘了付出。 39 Saturday, 17 November 12
CONTRIBUTE TO OPEN SOURCE PROJECTS • Reading code is just as important as writing code. 阅读代码与编写代码同重要。 • Learn from the masters. 向⼤大师们学习。 • Take some, give some - sharing is awesome. 不断收获的同时，别忘了付出。 • Make things more useful for yourself therefore for others too. 对⾃自⼰己有⽤用的东⻄西，也许对他⼈人也有⽤用。 39 Saturday, 17 November 12
OPEN SOURCE YOUR OWN WORK • Made something useful? Release it! 写了有⽤用的好玩意⼉儿？发布吧，勇敢的少年！ • Be critisied of your work, and learn from mistakes. 虚⼼心接受意⻅见与批评，由错误中学习。 41 Saturday, 17 November 12
OPEN SOURCE YOUR OWN WORK • Made something useful? Release it! 写了有⽤用的好玩意⼉儿？发布吧，勇敢的少年！ • Be critisied of your work, and learn from mistakes. 虚⼼心接受意⻅见与批评，由错误中学习。 • Be proud of your work, and be recognised. 为⾃自⼰己的⾟辛苦成果感到⾃自豪。 41 Saturday, 17 November 12
OPEN SOURCE YOUR OWN WORK • Made something useful? Release it! 写了有⽤用的好玩意⼉儿？发布吧，勇敢的少年！ • Be critisied of your work, and learn from mistakes. 虚⼼心接受意⻅见与批评，由错误中学习。 • Be proud of your work, and be recognised. 为⾃自⼰己的⾟辛苦成果感到⾃自豪。 • Make a little dent in the universe. ⼀一点⼩小⼩小的贡献的话，可以哟〜～ 41 Saturday, 17 November 12
OPEN SOURCE YOUR OWN WORK RUBY Action Throttler Throttle actions based on configurable duration and limit. RUBY Angel Nest An open source 'clone' of AngelList. RUBY API Taster Visually test your Rails application's API. RUBY AppReset Resets (and if available, seeds) your databases. RUBY Bustle Activities recording and retrieving using a simple Pub/Sub-like interface. RUBY Datamappify Turn ActiveRecord into DataMapper (sort of)! RUBY Haml2Slim Convert Haml templates to Slim templates. RUBY Inherited Resources Views DRY your view files! RUBY Ruby Decorators Ruby method decorators inspired by Python. RUBY Security Guard A collection of useful tools for auditing data. RUBY Slim Bundle A Textmate / Sublime Text bundle for Slim. PHP Authlite A lightweight, flexible Auth module for Kohana. PHP KThrottler Throttle actions based on configurable duration and limit. PHP PHamlP A bridge between Kohana and PHamlP. JAVASCRIPT Endless Scroll Endless / infinite scrolling solution for jQuery. JAVASCRIPT Inline Confirmation Less obtrusive confirmation dialogues. JAVASCRIPT Skinny Coffee Machine A simple state machine with observers. JAVASCRIPT Slideshow Lite A lightweight slideshow plugin for jQuery. 42 Saturday, 17 November 12
Holy shit the code is clean. Good job dude. I'm impressed by your SCSS too. Good quality dev right here. -- dfischer (via Hacker News) 48 Saturday, 17 November 12
... he's turned a negative event (getting stiffed) into positive exposure for his work with hundreds of HN readers. At least at a glance, it seems like solid and clean Rails / Ruby code ... -- tomkarlo (via Hacker News) 52 Saturday, 17 November 12
I reviewed the angel_nest code and I must say it has the best implementation. Thank you very much for releasing angel_nest as open source. -- Firoz A. (via Email) 53 Saturday, 17 November 12
... you have an impressive collection of open source contributions, and it would be great to keep in touch ... -- Tom Preston-Werner (CEO, GitHub) 73 Saturday, 17 November 12
DO FREELANCE WORK • Like open source work, but with deadlines and pressure. 截⽌止期限与压⼒力。 • Like open source work, but with some $$$. 赚点外快。 74 Saturday, 17 November 12
DO FREELANCE WORK • Like open source work, but with deadlines and pressure. 截⽌止期限与压⼒力。 • Like open source work, but with some $$$. 赚点外快。 • Be involved in projects different to those at your day job. 不同的项⺫⽬目体验与经验。 74 Saturday, 17 November 12
DO FREELANCE WORK • Like open source work, but with deadlines and pressure. 截⽌止期限与压⼒力。 • Like open source work, but with some $$$. 赚点外快。 • Be involved in projects different to those at your day job. 不同的项⺫⽬目体验与经验。 • Communication skills with your clients. 客户沟通经验。 74 Saturday, 17 November 12
DO FREELANCE WORK • Like open source work, but with deadlines and pressure. 截⽌止期限与压⼒力。 • Like open source work, but with some $$$. 赚点外快。 • Be involved in projects different to those at your day job. 不同的项⺫⽬目体验与经验。 • Communication skills with your clients. 客户沟通经验。 • Communication skills with your remote team members. 远程团队沟通经验。 74 Saturday, 17 November 12
AND LASTLY, YOUR DAY JOB • You spend most of your hours awake at your day job, make it count! • Know what you are looking for. 知道⾃自⼰己想要什么。 76 Saturday, 17 November 12
AND LASTLY, YOUR DAY JOB • You spend most of your hours awake at your day job, make it count! • Know what you are looking for. 知道⾃自⼰己想要什么。 • What can you get out of working at the company? 在这家公司⼯工作，能学习到什么？ 76 Saturday, 17 November 12
AND LASTLY, YOUR DAY JOB • You spend most of your hours awake at your day job, make it count! • Know what you are looking for. 知道⾃自⼰己想要什么。 • What can you get out of working at the company? 在这家公司⼯工作，能学习到什么？ • What did you get out of working at the company? 在这家公司⼯工作，学习到了什么？ 76 Saturday, 17 November 12
AND LASTLY, YOUR DAY JOB • My first real job (part time) ‣ Small web agency ‣ Mostly static websites ‣ Mostly small clients ‣ Mostly small projects 77 Saturday, 17 November 12
AND LASTLY, YOUR DAY JOB • My first real job (part time) • HTML, CSS, PHP and JavaScript! ‣ Small web agency ‣ Mostly static websites ‣ Mostly small clients ‣ Mostly small projects 77 Saturday, 17 November 12
AND LASTLY, YOUR DAY JOB • My first real job (part time) • HTML, CSS, PHP and JavaScript! • Mostly worked by myself ‣ Small web agency ‣ Mostly static websites ‣ Mostly small clients ‣ Mostly small projects 77 Saturday, 17 November 12
AND LASTLY, YOUR DAY JOB • My first real job (part time) • HTML, CSS, PHP and JavaScript! • Mostly worked by myself • Learnt a thing or two about SEO ‣ Small web agency ‣ Mostly static websites ‣ Mostly small clients ‣ Mostly small projects 77 Saturday, 17 November 12
AND LASTLY, YOUR DAY JOB • My first real job (part time) • HTML, CSS, PHP and JavaScript! • Mostly worked by myself • Learnt a thing or two about SEO • I’m not as good as I thought I was ‣ Small web agency ‣ Mostly static websites ‣ Mostly small clients ‣ Mostly small projects 77 Saturday, 17 November 12
AND LASTLY, YOUR DAY JOB ‣ Small agency (print + web) ‣ Small to mid-sized projects ‣ Household name clients ‣ Meetings with clients 78 Saturday, 17 November 12
AND LASTLY, YOUR DAY JOB • My first full time job ‣ Small agency (print + web) ‣ Small to mid-sized projects ‣ Household name clients ‣ Meetings with clients 78 Saturday, 17 November 12
AND LASTLY, YOUR DAY JOB • My first full time job • Mostly PHP and JavaScript ‣ Small agency (print + web) ‣ Small to mid-sized projects ‣ Household name clients ‣ Meetings with clients 78 Saturday, 17 November 12
AND LASTLY, YOUR DAY JOB • My first full time job • Mostly PHP and JavaScript • Kohana, Zend Framework and Yii ‣ Small agency (print + web) ‣ Small to mid-sized projects ‣ Household name clients ‣ Meetings with clients 78 Saturday, 17 November 12
AND LASTLY, YOUR DAY JOB • My first full time job • Mostly PHP and JavaScript • Kohana, Zend Framework and Yii • Team environment ‣ Small agency (print + web) ‣ Small to mid-sized projects ‣ Household name clients ‣ Meetings with clients 78 Saturday, 17 November 12
AND LASTLY, YOUR DAY JOB • My first full time job • Mostly PHP and JavaScript • Kohana, Zend Framework and Yii • Team environment • Learnt things I didn’t know (print) ‣ Small agency (print + web) ‣ Small to mid-sized projects ‣ Household name clients ‣ Meetings with clients 78 Saturday, 17 November 12
• Hired as a PHP developer AND LASTLY, YOUR DAY JOB ‣ Well-known startup ‣ Great platforms and websites ‣ Online education! ‣ High traffic ‣ Ruby shop 79 Saturday, 17 November 12
• Hired as a PHP developer • Became a Ruby developer AND LASTLY, YOUR DAY JOB ‣ Well-known startup ‣ Great platforms and websites ‣ Online education! ‣ High traffic ‣ Ruby shop 79 Saturday, 17 November 12
• Hired as a PHP developer • Became a Ruby developer • Learnt heaps from senior devs AND LASTLY, YOUR DAY JOB ‣ Well-known startup ‣ Great platforms and websites ‣ Online education! ‣ High traffic ‣ Ruby shop 79 Saturday, 17 November 12
• Hired as a PHP developer • Became a Ruby developer • Learnt heaps from senior devs • Manage stakeholder expectations AND LASTLY, YOUR DAY JOB ‣ Well-known startup ‣ Great platforms and websites ‣ Online education! ‣ High traffic ‣ Ruby shop 79 Saturday, 17 November 12
• Hired as a PHP developer • Became a Ruby developer • Learnt heaps from senior devs • Manage stakeholder expectations • Online education AND LASTLY, YOUR DAY JOB ‣ Well-known startup ‣ Great platforms and websites ‣ Online education! ‣ High traffic ‣ Ruby shop 79 Saturday, 17 November 12
• Hired as a PHP developer • Became a Ruby developer • Learnt heaps from senior devs • Manage stakeholder expectations • Online education • Recognisable brand AND LASTLY, YOUR DAY JOB ‣ Well-known startup ‣ Great platforms and websites ‣ Online education! ‣ High traffic ‣ Ruby shop 79 Saturday, 17 November 12
• Hired as a senior developer • 40+ developers AND LASTLY, YOUR DAY JOB ‣ Well funded startup ($50M+) ‣ Large teams ‣ Multiple projects 80 Saturday, 17 November 12
• Hired as a senior developer • 40+ developers • My first agile environment! AND LASTLY, YOUR DAY JOB ‣ Well funded startup ($50M+) ‣ Large teams ‣ Multiple projects 80 Saturday, 17 November 12
• Hired as a senior developer • 40+ developers • My first agile environment! • Multiple teams and projects AND LASTLY, YOUR DAY JOB ‣ Well funded startup ($50M+) ‣ Large teams ‣ Multiple projects 80 Saturday, 17 November 12
• Hired as a senior developer • 40+ developers • My first agile environment! • Multiple teams and projects • Made lots of friends :-) AND LASTLY, YOUR DAY JOB ‣ Well funded startup ($50M+) ‣ Large teams ‣ Multiple projects 80 Saturday, 17 November 12
• Hired as a development team lead AND LASTLY, YOUR DAY JOB ‣ Well-known company ‣ Respected in the industry ‣ Online education! ‣ High traffic 81 Saturday, 17 November 12
• Hired as a development team lead • Tech leadership and management AND LASTLY, YOUR DAY JOB ‣ Well-known company ‣ Respected in the industry ‣ Online education! ‣ High traffic 81 Saturday, 17 November 12
• Hired as a development team lead • Tech leadership and management • Great industry connections AND LASTLY, YOUR DAY JOB ‣ Well-known company ‣ Respected in the industry ‣ Online education! ‣ High traffic 81 Saturday, 17 November 12
• Hired as a development team lead • Tech leadership and management • Great industry connections • Online education AND LASTLY, YOUR DAY JOB ‣ Well-known company ‣ Respected in the industry ‣ Online education! ‣ High traffic 81 Saturday, 17 November 12
• Hired as a development team lead • Tech leadership and management • Great industry connections • Online education • Recognisable brand AND LASTLY, YOUR DAY JOB ‣ Well-known company ‣ Respected in the industry ‣ Online education! ‣ High traffic 81 Saturday, 17 November 12
• Hired as a development team lead AND LASTLY, YOUR DAY JOB ‣ Well-funded startup ‣ Unique industry connections ‣ Early stage ‣ Big opportunities 82 Saturday, 17 November 12
• Hired as a development team lead • Design and architect systems AND LASTLY, YOUR DAY JOB ‣ Well-funded startup ‣ Unique industry connections ‣ Early stage ‣ Big opportunities 82 Saturday, 17 November 12
• Hired as a development team lead • Design and architect systems • Build champion teams AND LASTLY, YOUR DAY JOB ‣ Well-funded startup ‣ Unique industry connections ‣ Early stage ‣ Big opportunities 82 Saturday, 17 November 12
• Hired as a development team lead • Design and architect systems • Build champion teams • Enterprise products + startup spirits AND LASTLY, YOUR DAY JOB ‣ Well-funded startup ‣ Unique industry connections ‣ Early stage ‣ Big opportunities 82 Saturday, 17 November 12
• Hired as a development team lead • Design and architect systems • Build champion teams • Enterprise products + startup spirits • Be part of something big (potentially) AND LASTLY, YOUR DAY JOB ‣ Well-funded startup ‣ Unique industry connections ‣ Early stage ‣ Big opportunities 82 Saturday, 17 November 12
PERSONAL BRANDING • Designers have online portfolios, what about us developers? • Blog - show me your thoughts! • Twitter/Weibo - show me your passion! 83 Saturday, 17 November 12
PERSONAL BRANDING • Designers have online portfolios, what about us developers? • Blog - show me your thoughts! • Twitter/Weibo - show me your passion! • GitHub - show me your code! 83 Saturday, 17 November 12
PERSONAL BRANDING • Designers have online portfolios, what about us developers? • Blog - show me your thoughts! • Twitter/Weibo - show me your passion! • GitHub - show me your code! • LinkedIn - show me your resume! 83 Saturday, 17 November 12
PERSONAL BRANDING • Build up your network 拓展交际圈 • Establish your reputation 树⽴立好名声 • People will endorse your work 让更多⼈人赞誉你的成果 84 Saturday, 17 November 12
OUR GIT WORKFLOW • Two deployable branches - “master” and “develop” • Both branches connect to CI (Jenkins + Travis) • Small tweaks and hot-fixes push to deployable branches directly 93 Saturday, 17 November 12
OUR GIT WORKFLOW • Two deployable branches - “master” and “develop” • Both branches connect to CI (Jenkins + Travis) • Small tweaks and hot-fixes push to deployable branches directly • Disposable feature branches 93 Saturday, 17 November 12
OUR GIT WORKFLOW • Two deployable branches - “master” and “develop” • Both branches connect to CI (Jenkins + Travis) • Small tweaks and hot-fixes push to deployable branches directly • Disposable feature branches • Pull requests (w/ Travis) 93 Saturday, 17 November 12
OUR GIT WORKFLOW • Two deployable branches - “master” and “develop” • Both branches connect to CI (Jenkins + Travis) • Small tweaks and hot-fixes push to deployable branches directly • Disposable feature branches • Pull requests (w/ Travis) • Pull requests get reviewed 93 Saturday, 17 November 12
OUR GIT WORKFLOW • Two deployable branches - “master” and “develop” • Both branches connect to CI (Jenkins + Travis) • Small tweaks and hot-fixes push to deployable branches directly • Disposable feature branches • Pull requests (w/ Travis) • Pull requests get reviewed • Pull requests get merged 93 Saturday, 17 November 12
OUR GIT WORKFLOW • Two deployable branches - “master” and “develop” • Both branches connect to CI (Jenkins + Travis) • Small tweaks and hot-fixes push to deployable branches directly • Disposable feature branches • Pull requests (w/ Travis) • Pull requests get reviewed • Pull requests get merged • Release and profit! 93 Saturday, 17 November 12
Thank you for informed me. I am writing to apologise the sloppy code. There was an unexpected house selling emergency last weekend. I was unable to spent enough time on the test. Your Agency is important to me, I value each opportunity you brought and always prepare it seriously. Please accept my sincere apology for missing this valuable job opportunity. -- Candidate who cheats 118 Saturday, 17 November 12
Thank you for informed me. I am writing to apologise the sloppy code. There was an unexpected house selling emergency last weekend. I was unable to spent enough time on the test. Your Agency is important to me, I value each opportunity you brought and always prepare it seriously. Please accept my sincere apology for missing this valuable job opportunity. -- Candidate who cheats 118 Saturday, 17 November 12
Thank you for informed me. I am writing to apologise the sloppy code. There was an unexpected house selling emergency last weekend. I was unable to spent enough time on the test. Your Agency is important to me, I value each opportunity you brought and always prepare it seriously. Please accept my sincere apology for missing this valuable job opportunity. -- Candidate who cheats 118 Saturday, 17 November 12
Thank you for informed me. I am writing to apologise the sloppy code. There was an unexpected house selling emergency last weekend. I was unable to spent enough time on the test. Your Agency is important to me, I value each opportunity you brought and always prepare it seriously. Please accept my sincere apology for missing this valuable job opportunity. -- Candidate who cheats 118 Saturday, 17 November 12
“I get paid for code that works, not for tests, so my philosophy is to test as little as possible to reach a given level of confidence.” -- Kent Beck 120 Saturday, 17 November 12
EFFECTIVE TESTS • They are describing ActiveRecord behaviours. • Allow mass assignments on foreign keys is wrong. • They are testing how methods are implemented. 122 Saturday, 17 November 12
EFFECTIVE TESTS • They are describing ActiveRecord behaviours. • Allow mass assignments on foreign keys is wrong. • They are testing how methods are implemented. • No confidence gained. 122 Saturday, 17 November 12
FASTER TESTS • For objects that don’t matter, use mocks (but don’t abuse ‘em!) ⽆无关紧要的对象们使⽤用 mock 就可以了，但切勿滥⽤用！ • When use factories, favour build to create 使⽤用对象⼯工⼚厂的话，尽量使⽤用 build ⽽而⾮非 create 126 Saturday, 17 November 12
PROBLEM • A user has many trips • Each trip may contain more than one stops, e.g. • Beijing -> Shanghai • Shanghai -> Hongkong 135 Saturday, 17 November 12
PROBLEM • A user has many trips • Each trip may contain more than one stops, e.g. • Beijing -> Shanghai • Shanghai -> Hongkong • We only want to display the first stop from each trip 135 Saturday, 17 November 12
PROBLEM WITH “UserApproval” • What does it mean? • A user’s approval? Nope. • An approval’s user? Nope. • So, it’s not an approval, or a user. 158 Saturday, 17 November 12
PROBLEM WITH “UserApproval” • What does it mean? • A user’s approval? Nope. • An approval’s user? Nope. • So, it’s not an approval, or a user. • Where’s the indication of “role”? 158 Saturday, 17 November 12
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