dinobi

Run rails new --help to view all of the options you can pass to rails new:

$ bin/rails new --help
Usage:
  rails new APP_PATH [options]

Options:
  -r, [--ruby=PATH]                                      # Path to the Ruby binary of your choice
                                                         # Default: /Users/eliot/.rbenv/versions/2.2.0/bin/ruby

dinobi

after "deploy:restart", "resque:stop_workers"

namespace :resque do
  task :stop_workers, :except => { :no_release => true } do
    run "cd #{current_path} && rake RAILS_ENV=#{rails_env} resque:stop_workers"
  end
end

dinobi

# Using Form Object Extraction Pattern
class UserNoteForm
  include ActiveModel::Model

  def persisted?
    false
  end

  attr_accessor :user_note

dinobi

# Using Service Object Extraction Pattern
class Product < ActiveRecord::Base
end

class UserNoteService
  require ostruct

  def initialize(object)
    @object = object
  end

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# Using Value Object Extraction Pattern
class Product < ActiveRecord::Base
  def user_note
    UserNote.new(user_note)
  end

  def user_note=(user_note)
    self.user_note = user_note.note
  end

dinobi

# Using Delegation Pattern
class Product < ActiveRecord::Base

  # instead of defining a notes method inside Product class
  # where we can perform some arbitrary logic on user notes,
  # we can simply delegate the note method to the UserNote class
  #
  # USAGE: product.user_note
  delegate :note, to: :user_note, prefix: :user
end

dinobi

HTTP status code symbols for Rails

Thanks to Cody Fauser for this list of HTTP responce codes and their Ruby on Rails symbol mappings.

Status Code Symbol
1xx Informational
100 :continue
101 :switching_protocols
102 :processing

dinobi

#!/usr/bin/env bash
# Welcome to my sample command line session
pwd #show the current directory
ls #list files in the current directory
mkdir sample-dir1 #create a new directory
cd sample-dir1 #navigate to a directory
cd .. #switch to the directory above this
mkdir sample-dir2 #create another directory
cd sample-dir2
touch sample_script.rb #create ruby script file

dinobi

<!-- I decided not to use the styles resources to hold related view states, so that all values can be seen at a glance -->

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:background="#fff"
    tools:context="com.example.android.goalchallenge.MainActivity">

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package com.example.android.goalchallenge;

import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.TextView;
import android.widget.Toast;

public class MainActivity extends AppCompatActivity {
//Variables to hold global data that will be accessed by methods