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Cheat Sheets are greate but they are not a substitute for learning the framework and reading the documentation as we most certainly have not covered every potential example here. Please refer to the Rails Command Line Docs for more information.

Command Line Generator Info

Reference

You can get all of this information on the command line.

rails generate with no generator name will output a list of all available generators and some information about global options. rails generate GENERATOR --help will list the options that can be passed to the specified generator.

The migration is an easy one line fix:

class CreateCaseStudies < ActiveRecord::Migration[5.1]
  def change
    create_table :case_studies do |t|
      t.string :title
      t.text :description
      t.text :short_description
 t.string :slug

	defmodule AdLock.DataProcessTest do
	@timeout 60000

	def start do
	#list of files
	# files = ["/Volumes/Backup/samples/raw-000000000000.csv.gz",
	# "/Volumes/Backup/samples/raw-000000000001.csv.gz"]
	#files = ["/Volumes/Backup/samples/raw-000000000000.csv.gz"]
	#files = ["/Volumes/Backup/samples/raw-000000000000.csv"]
	files = ["/Users/cj/Downloads/raw-1-small.csv.gz",

	iex(1)> s1 = "Hello, World!"
	"Hello, World!"
	iex(2)> s2 = "ボリスくん"
	"ボリスくん"
	iex(3)> Regex.scan(~r/\S/, s1)
	[["H"], ["e"], ["l"], ["l"], ["o"], [","], ["W"], ["o"], ["r"], ["l"], ["d"],
	["!"]]
	iex(4)> Regex.scan(~r/\S/, s2)
	[[<<227>>], [<<131>>], [<<156>>], [<<227>>], [<<131>>], [<<170>>], [<<227>>],
	[<<130>>], [<<185>>], [<<227>>], [<<129>>], [<<143>>], [<<227>>], [<<130>>],

	# This file describes the network interfaces available on your system
	# and how to activate them. For more information, see interfaces(5).

	source /etc/network/interfaces.d/*

	# The loopback network interface
	auto lo
	iface lo inet loopback

	# The primary network interface

	using System;
	using System.Collections.Generic;
	using System.Configuration;
	using System.Data;
	using System.Linq;
	using System.Threading.Tasks;
	using System.Windows;
	using RollbarDotNet;

	namespace Sample

	lass CreateCaseStudies < ActiveRecord::Migration[5.1]
	def change
	create_table :case_studies do \|t\|
	t.string :title
	t.text :description
	t.text :short_description
	t.string :slug
	t.text :content
	t.boolean :hidden, default: false
	t.datetime :published_at