Patrick Robertson patricksrobertson

ICIS Ember-CLI Ecosystem

This doc outlines what we have going for us with Ember-CLI apps/addons.

The idea behind the addon ecosystem is this that it's currently too fucking expensive to build single page apps vs how expensive it should be.

We have automatically generating Ruby API clients, we have engines for authenticaiton on the server side, but up till now we don't have anything for the client.

Breaking up with Asset Pipeline TL;DR

BEFORE

metric crapton of coffee files, plus sourcemaps (~3 year actively developed BackboneJS app with ~7 pages)
metric crapton of sass files, no sourcemaps (our designer hated us with a passion for the lack of sourcemaps)
development page load time ~45seconds - 1 minute
Assload of mocha/chai tests, run with konacha (rails engine)
- Took ~4 minutes for konacha to load all test files, pain in the ass
Had to split up konacha suite into 3 parts for CI

Why structs are pretty OK

I primarily use structs as:

A data structure replacing any array and calls to array like things.
As a value object.
As an internal class wrapping some behavior until I get a better grasp on things.

Consider the following:

	BlargController = App.IndexController.extend
	isFeatureOn: (->
	@get('features').get('This_is_my_feature') == true
	).property('features')

	Thoughts on js toolchain infancy / difficulty

	In general:
	I think serious browser app development is still in its infancy and
	as a result the tools move really quickly and the continued development
	invalidates documentation / blog posts / SO questions etc. This is analogous
	to the Rails 2.0 time period in which we had just gotten a pile of good stuff
	on the internet to deal with Rails 1.8 and then everything just broke. Considering
	how young the tooling is, I think it's gotten crazy powerful recently (ember-cli / lineman).
	In a year we'll probably be very happy people.

	require 'cases/helper'

	if current_adapter?(:PostgreSQLAdapter)
	class ArelNodeAscendingTest < ActiveRecord::TestCase
	self.use_transactional_fixtures = false

	class State < ActiveRecord::Base
	has_many :cities
	default_scope { includes(:cities) }
	end

	class Vector
	def initialize(x, y)
	@x, @y = x, y
	end

	def *(value)
	self.class.new(@x * value, @y * value)
	end

	def to_s

	class HL7::Message::Segment::FTS < HL7::Message::Segment
	add_field :something
	add_field :something_else
	end

	class HL7::Message::Segment::FTS < HL7::Message::Segment
	add_field :something
	add_field :something_else
	end

	class SomeController < ApplicationController
	def create
	patient = Patient.new(params[:patient]) #METHOD CACHE DESTROYED ABOUT A MILLION TIMES
	patient.extend RegisteringNewPatient #METHOD CACHE DESTROYED ONCE, 0.00001 seconds consumed

	patient.save #METHOD CACHE DESTROYED ANOTHER MILLION TIMES
	end
	end

	# so very bad

	class Blerg
	constructor: (@options = {}) ->

	byLine: ->
	"by #{@options.author.fullName()}"

	category: ->
	@options.category