Lightning talk 2

Shitceptions

Wednesday, June 19, 13

github.com/theverything theverythingy

Active Support


require 'active_support/all'require 'active_support/core_ext'require 'active_support/core_ext/hash'require 'active_support/core_ext/hash/slice'

Active Support all up in your Rails

To add it to any project

gem 'activesupport'


Active Support adds extensions to...


Active Support adds extensions to...Array, BigDecimal, Class, Date, DateTime, File, Float, Hash, Integer, Kernel, Module, Numeric, Object, Process, Range, String, and Time


String "hello world".truncate(9)=> "hello ..."

'person'.pluralize=> "people"

'people'.singularize=> "person"

"hello world".titleize=> "Hello World"

"Hello World!!".parameterize=> "hello-world"

"hello_world".camelize=> "HelloWorld"

"HelloWorld".underscore=> "hello_world"


Integer &Enumerable

1.ordinalize=> "1st"

2.ordinalize=> "2nd"

3.ordinalize=> "3rd"

4.ordinalize=> "4th"

[1, 2, 3, 4, 5].sum=> 15


[1, 2, 3, 4, 5].second=> 2

[1, 2, 3, 4, 5].third=> 3

[1, 2, 3, 4, 5].fourth=> 4

[1, 2, 3, 4, 5].fifth=> 5

(1..100).to_a.forty_two=> 42

["one", "two", "three"].to_sentence=> "one, two, and three"

[1, 2, 3, 4, 5, 6, 7].in_groups_of(2)=> [[1, 2], [3, 4], [5, 6], [7, nil]]

Array


Hash{ one: "hello", two: "world", three: "yay" }.to_query=> "one=hello&three=yay&two=world"

{ one: "hello", two: "world", three: "yay" }.slice(:one, :three)=> {:one=>"hello", :three=>"yay"}

{ one: "hello", two: "world", three: "yay" }.except(:one)=> {:two=>"world", :three=>"yay"}


to_param

["one", "two", "three"].to_param=> "one/two/three"

class Post < ActiveRecord::Base def to_param "#{created_at.strftime("%m-%d-%y")}-

#{title.parameterize}" endend

post_path(@post) # => "6-19-13-hello-world"


Questions?

github.com/theverything theverythingy


Lightning talk 2

Technology

Transcript of Lightning talk 2