Ember Development Done Right

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Development Done Right tw://adman65 - gh://twinturbo - me@broadcastingadam.com - présentés à Paris

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DOING IT WRONG

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Ya....banking

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Thierry Henry

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QUnit Example

God damn HTML code loaders

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# I want these files /app/models/user.js /app/controllers/deals.js /app/views/dashboard

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# I need to to this, but # this is Javascript. We # can’t have nice things var Deal = require('deals');

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# But I'm stuck with this /app.js

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# or stuck with a shit load HTTP requests <script src=”/app/controllers/deals.js”> <script src=”/app/views/dashboard.js”>

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# I’ll just use coffee script $ coffee-script **/*.coffee src/ --watch

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// Writing templates in Javascript Handlebars.compile("this retarded long and complex string");

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Scarebleu! Il ya pitfalls

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Easy to Mess Up • Testing? • No seriously, how do you test Javascript? • What about miniﬁcation for production? • i18n....yes that’s still important

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Doing It Right • TDD friendly dev process • Coffeescript + SASS • Code organized into multiple ﬁles • Dev process supports multiple envs (dev, prod, test) • Integrated build process

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“If you want to make a JS app from scratch, you must ﬁrst create the universe.” - Carl Sagan on modern JS development

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Let’s Make a Universe

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$ gem install iridium * prerelease upcoming

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$ iridium app todos create app create app/config create app/config/development.coffee create app/config/initializers create app/config/production.coffee create app/config/test.coffee create app/assets/images/ create app/assets/images/sprites create app/javascripts/app.coffee create app/javascripts/boot.coffee create app/javascripts/controllers create app/javascripts/models create app/javascripts/views create app/templates create app/locales/en.yml create app/public create app/public/index.html.erb create app/stylesheets/app.scss create app/vendor/javascripts create app/vendor/javascripts/handlebars.js create app/vendor/javascripts/i18n.js create app/vendor/javascripts/jquery.js create app/vendor/javascripts/minispade.js create app/vendor/stylesheets create site create test create test/controllers create test/integration/navigation_test.coffee create test/models create test/support/helper.coffee create test/support/sinon.js create test/templates create test/unit/truth_test.coffee create test/views create application.rb

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The Quick Version

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# application.rb class Todos < Iridium::Application # Dependency Management config.load :minispade config.load :jquery config.load :handlebars end

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// app.coffee - loads all the code Todos = Ember.Application.create({ VERSION: '1.0', storeNamespace: 'todos-emberjs', }) require 'todos/router' // app/javascripts/router.js|coffee require 'todos/models' // app/javascripts/models.js|coffee require 'todos/controllers' // you get require 'todos/views' // the point require 'todos/templates' // by now

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$ cd todos $ iridium server >> Thin web server (v1.4.1 codename Chromeo) >> Maximum connections set to 1024 >> Listening on 0.0.0.0:9292, CTRL+C to stop ... now hit Refresh

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# test/models/todo_test.coffee test "should default to not done", -> equal Models.todo.get('isDone'), false, "todo is not done" test "should set todo title", -> Models.todo.set 'title', "A todo" equal Models.todo.get('title'), "A todo", "todo title is set" test "should be able to signify isdone", -> Models.todo.set 'isDone', true ok Models.todo.get('isDone'), "Todo is done"

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$ iridium test Run options: --seed 14903 # Running Tests: ..... 5 Tests, 0 Failures, 10 Assertions

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Conﬁguration

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# production.rb Todos.configure do # Minify JS and CSS config.pipeline.minify = true # Generate GZip version of files along with regular version config.pipeline.gzip = true # Generate an HTML5 Cache Manifest for offline support config.pipeline.manifest = true # Precompile handlebars templates config.handlebars.precompile = false # Module format for minispade: :string or :function config.minispade.module_format = :string # Proxy /api to something to avoid CORS proxy ‘/api’, ‘api.example.com’ end

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Architecture • Hydrogen (think Rails Engines) • Rake-Pipeline • QUnit, CasperJS, + PhantomJS for Testing • Preload Handlebars, JQuery, and Minispade • Minispade for “require”

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$ gem install iridium-ember *prelease upcoming

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Why? Ember speciﬁc optimizations and conﬁgurations

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Like What? • Ember specific localizations • Strip Ember.assert when configured • Ember specific handlebars precompiler • Ember specific test setup and teardown • Automatically generated classes with test cases • Fixtures for development or testing • Load handlebars templates for ember views

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$ iridium g ember:app

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• Generates basic iridium structure • Adds a router • Adds an application controller • Adds an application view • Adds code to boot your app • Adds complete integration test • Adds ﬁxtures

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$ iridium g ember:model user $ iridium g ember:controller users $ iridium g ember:view dashboard $ iridium g ember:state dashboard $ iridium g ember:route dashboard $ iridium g ember:data

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$ iridium g ember:sandbox

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• The noob version • Generates a fully functioning todos app • Todos are examples of how to do things in ember or conﬁgure iridium • This where you learn how to do things

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Iridium-ember will give you a rails style experience

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Iridium currently works with ember* *As long as you change the handlebars compile options.