David Cuadra dcuadraq

Spacemacs

Basic [Space] commands

Spc z f + Increase font size, press + until desired size, q for exit menu
Spc z f - Increase font size, press - until desired size, q for exit menu
Spc p f Search file by name in current project
Spc f s Save current buffer
Spc f S Save all buffers
Spc f t NerdTree toggle
R On NerdTree, sets higlighted directory as Root

Chapter 1. Models

The Model layer should also contain the business logic of your application.

ANTIPATTERN: VOYEURISTIC MODELS

Class: A class defines the characteristics of an object, including the details of what it is (its attributes) and what it can do (its methods).

Method: A method exists on a class and defines what the class can do.

Encapsulation: Ideally, the code for a class should be relatively self-contained through encapsulation, which is the concealment of functional details of a class from the other objects that call its methods. This is typically done by limiting the methods other objects are allowed to call and exposing a public interface through which an object is exposed to the world. In Ruby, this is done with the public, protected, and private keywords.

When attenpting to install a Linux Distro, its common to download the ISO then use a tool (e.g. UNetbootin, Linux Live USB Creator, Universal USB Installer, Live USB Creator) to make a USB bootable with the installer of the distro. This is no the recommended way.

Source

https://wiki.archlinux.org/index.php/USB_flash_installation_media

Prefered method

On OS X

To list USB devices

Tmux cheat sheet

Setup

brew install tmux

~/.tmux.conf

Fugitive

Vim plugin for git

Commands

:help Glog

:Glog

:cnext

Loads the next version (older)

:cprevious

Loads the previous version (newer)

:cfirst

Gem for searches using Postgresql.

Uses a dictionary to know the synonyms.

Query to get all currently available dictionaries

SELECT dictname FROM pg_catalog.pg_ts_dict; # or \dF

Query to get current default configuration

Examples

Block requests with matching header

class Rack::Attack
  throttle('req/ip', limit: 0, period: 1.second) do |req|
    req.ip if req.env['HTTP_X_SCANNER'] == 'Netsparker' ||
              req.params['email'] == '[email protected]'
  end
end

#Solidus

Install imagemagick for thumbnail generation

brew install imagemagick

Create a new rails app

rails new solidus -d postgresql

	# config/application.rb

	# Fix for Please add devise :omniauthable

	initializer 'main_app.auto_load' do \|app\|
	Rails.application.reloader.to_run(:before) do
	Rails.application.reloader.prepare!
	end
	end

	# db/migrate/20170315153444_create_spree_state_translations.rb
	class CreateSpreeStateTranslations < ActiveRecord::Migration[5.0]
	reversible do \|dir\|
	dir.up do
	Spree::State.create_translation_table! name: :string, abbr: :string
	end

	dir.down do
	Spree::State.drop_translation_table!
	end