mowat27

(ns homoiconic.my-defn)

; ----------- --- --- -- -- - -

(defn hello [what]
  (str "hello " what))

(hello "world")

; ----------- --- --- -- -- - -

mowat27

; My "lightbulb" moment at EuroClojure 2012 was that clojure is at it's most
; powerful when you build abstractions in the data and keep the functions as
; generic as possible so you can chain them easily

; For example, here is some code I wrote a few months ago to parse a freebase TSV file 
(def keywords {"id" "freebase_id"})
(defn override-keywords [field-name]
  	(let [alternative (get keywords field-name)]
     		(if (nil? alternative) field-name alternative)))
(defn get-field-names [line] (map override-keywords (str/split line #"\t")))

mowat27

# Specs 
describe "a sucessful create" do
  it "redirects" do
    Organization.any_instance.stub(:saved? => true)

    controller = OrganizationsController.new
    controller.should_receive(:redirect_to)
    controller.create
  end
end

mowat27

resource organisation do
  responds_to do
    get new {
      success:        -> {render "a page"},
      error: (reason) -> {redirect_to some_error(reason)}
    }
  end
end

mowat27

(def pipe_delim_text  
"Lorem|ipsum|dolor
sit|amet,|consectetur
")

(def fixed-width-text "122333455666")

(defrecstruct lorem-record 
  (:field1  (delimiter "|"))
  (:field2  (delimiter "|"))

mowat27

# Extracted from Matt Yoho's (https://github.com/mattyoho) talk at Scottish Ruby Conference 2012
# Exploiting the Resource Idiom - https://speakerdeck.com/u/mattyoho/p/exploiting-the-resource-idiom
#
module ResourceModel
  
  def self.inherited(inheritor)
    inheritor.class_eval do
      include ActiveModel::Naming
      include ActiveModel::Validations
      include ActiveModel::Translation

mowat27

echo HOST.DOMAIN.com > /etc/hostname
/bin/hostname -F /etc/hostname
/etc/init.d/httpd restart

# Add to /etc/hosts
127.0.0.1 HOST.DOMAIN.com

mowat27

Branches

List remote branches

git branch -a

Checkout a remote branch (from origin)

git checkout -b branch_name origin/branch_name

mowat27

Four major principles to unify mind and body

• Keep one-point.
• Relax completely.
• Keep weight underside.
• Extend Ki.

Five Principles of Ki-Aikido

• Ki is extending.

mowat27

describe "calculator" do
  let(:calculator) { CalculatorFactory.new.create }

  it "adds numbers" do
    calculator.calculate("1 + 2").should == 3
  end

  it "adds big numbers" do
    calculator.calculate("11 + 22").should == 33
  end