Mike Hacker mhackersu

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

Default

Powerlevel10k

Please prepare the following stuff.

git
- [download] (http://code.google.com/p/msysgit/downloads/list?q=full+installer+official+git) and run the installer
- choose the second option using git at windows prompt
- choose check as windows CR/LF and commit as UNIX CR. Installation done!
- active git bash from start menu. This is a mingw command prompt, which emulates standard unix operations.
- try command

 git --version

tmux shortcuts & cheatsheet

start new:

tmux

start new with session name:

tmux new -s myname

true and false vs. "truthy" and "falsey" (or "falsy") in Ruby, Python, and JavaScript

Many programming languages, including Ruby, have native boolean (true and false) data types. In Ruby they're called true and false. In Python, for example, they're written as True and False. But oftentimes we want to use a non-boolean value (integers, strings, arrays, etc.) in a boolean context (if statement, &&, ||, etc.).

This outlines how this works in Ruby, with some basic examples from Python and JavaScript, too. The idea is much more general than any of these specific languages, though. It's really a question of how the people designing a programming language wants booleans and conditionals to work.

If you want to use or share this material, please see the license file, below.

	/*!
	* gulp
	* $ npm install gulp-ruby-sass gulp-autoprefixer gulp-cssnano gulp-jshint gulp-concat gulp-uglify gulp-imagemin gulp-notify gulp-rename gulp-livereload gulp-cache del --save-dev
	*/

	// Load plugins
	var gulp = require('gulp'),
	sass = require('gulp-ruby-sass'),
	autoprefixer = require('gulp-autoprefixer'),
	cssnano = require('gulp-cssnano'),

	This document is outdated.
	You should read David Bryant Copeland's excellent online book: http://angular-rails.com/crud_recipe.html
	---------------------------------------------------------------------------------------------------------------
	I think it's better to install javascript/css libraries using Bower rather than gem which is Ruby packager.

	1. Install Rails 4 and create a new project.

	2. Install bower(Note you need to install node first.)
	sudo npm install -g bower

	#
	# Install the MYSQL driver
	# gem install mysql2
	#
	# Ensure the MySQL gem is defined in your Gemfile
	# gem 'mysql2'
	#
	# And be sure to use new-style password hashing:
	# http://dev.mysql.com/doc/refman/5.0/en/old-client.html
	development:

	#!/bin/sh
	#
	# chmodr.sh
	#
	# author: Francis Byrne
	# date: 2011/02/12
	#
	# Generic Script for recursively setting permissions for directories and files
	# to defined or default permissions using chmod.
	#