pyk

punya satu kategori:

shoes = Category.create(name: "shoes")

terus ada beberapa produk yang dimasukkan ke kategori shoes:

sepatu_a = Product.create(name: "sepatu a")

pyk

## Week 5 Quiz

## 0) Name 3 types of variables in Ruby? Put them in order from least scope to greatest.
local variable (var) , instance variable (@var), class variable (@@var), constant variable (VAR)

## 1) Where do SQL queries belong, the view or controller?
controller

pyk

def self.run
  # set current working directory
  file_path = File.expand_path(__FILE__) # File.join(Dir.getwd, __FILE__))
  file_workdir = File.dirname( file_path )
  file_logdir  = File.join(file_workdir, 'log')
  Dir.chdir file_workdir
  
  @@cwd = Dir.getwd  
  @@name = File.basename($0)
  @@hostname = Socket.gethostname

pyk

## 1) What does MVCr stand for?
Model, View, Controller (routes)





## 2) In what file do we store 'r' from MVCr ?
config/routes.rb

pyk

## Week 3 Quiz


## 1) What does ERB stand for?

Embedded Ruby

## 2) What is the name of the place (library) where additional built in Ruby functions can be accessed?
STDlib

pyk

# generate using this gems : http://rubygems.org/gems/terminal-table

require "terminal-table"

title = "posts"
properties = ["id", "title", "author_name", "body"]
r = []
r << [1, "I love dogs", "John", "woof"]
r << [2, "cars are great", "Sara", "I think they are"]

pyk

become active record migration expert (Rails 4.0.2)

workflow:

create model

$ rails g model NameOfModel
    invoke  active_record
    create    db/migrate/YYYYMMDDHHMMSS_create_name_of_models.rb

pyk

module Jekyll
  class LessConverter < Converter
    safe true
    priority :high
    
    def setup
      return if @setup
      require 'less'
      @setup = true
    rescue LoadError

pyk

installing postgresql 9.3.2 on ubuntu 12.04

follow official guide

$ echo "deb http://apt.postgresql.org/pub/repos/apt/ precise-pgdg main" > /etc/apt/sources.list.d/pgdg.list
$ wget --quiet -O - https://www.postgresql.org/media/keys/ACCC4CF8.asc | sudo apt-key add -
$ sudo apt-get update
$ sudo apt-get install postgresql-9.3 postgresql-contrib-9.3

you should succesfully installing postgresql 9.3.2 on your machine.

pyk

kenapa kok infinite?

Konsep dasar loop di javascript

# for loop
for (var; kondisi; increment){}

# while loop
while (kondisi){}