rocLv rocLv

## postgresql_configuration_on_ubuntu_for_rails.md

      
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                rocLv
                / postgresql_configuration_on_ubuntu_for_rails.md
            
            
              Created
              December 4, 2016 14:27
                — forked from p1nox/postgresql_configuration_on_ubuntu_for_rails.md
            
              
                PostgreSQL configuration without password on Ubuntu for Rails 
              
          
    Abstract

You could have postgre installed on localhost with password (or without user or password seted after instalation) but if we are developing we really don't need password, so configuring postgre server without password for all your rails project is usefull.
Install Postgre packages


postgresql
postgresql-client
libpq-dev


## Rails Controller.md

      
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                rocLv
                / Rails Controller.md
            
            
              Created
              February 22, 2017 10:27
                — forked from stevenyap/Rails Controller.md
            
              
                Rails controller cheatsheet
              
          
    Flash

# supports only notice and alert by default
# the rest has to go into flash hash
redirect_to :index, notice: "success"
redirect_to :new, notice: "errors"
redirect_to :new, flash: { success: "yeah" }
flash[:info] = "updated"

  
## imagemagick-install-steps
sudo -i
cd
apt-get install build-essential checkinstall && apt-get build-dep imagemagick -y
wget http://www.imagemagick.org/download/ImageMagick.tar.gz
tar xzvf ImageMagick-6.8.9-1.tar.gz
cd ImageMagick-6.8.9-1/
./configure --prefix=/opt/imagemagick-6.8 && make
checkinstall

## .vimrc.bundles
if &compatible
  set nocompatible
end

filetype off
set rtp+=~/.vim/bundle/Vundle.vim/
call vundle#begin()

" Let Vundle manage Vundle
Plugin 'gmarik/Vundle.vim'

## model.rb
# lib/templates/active_record/model/model.rb
<% module_namespacing do -%>
class <%= class_name %> < <%= parent_class_name.classify %>
  # keep the default scope first (if any)

  # constants come up next

  # afterwards we put attr related macros

  # followed by association macros

## new
You can specify an explicit logger in your config;

my_logger = ActiveSupport::BufferedLogger.new(path)
config.logger = my_logger
This will replace Rails.logger


## upgrade_pg.sh
Create the file /etc/apt/sources.list.d/pgdg.list, and add a line for the repository
deb http://apt.postgresql.org/pub/repos/apt/ xenial-pgdg main

wget --quiet -O - https://www.postgresql.org/media/keys/ACCC4CF8.asc | \
  sudo apt-key add -
sudo apt-get update

sudo apt-get install postgresql-9.6 postgresql-server-dev-9.6 postgresql-contrib-9.6 -y

sudo su - postgres -c "psql template1 -p 5433 -c 'CREATE EXTENSION IF NOT EXISTS hstore;'"

## application.rb
require_relative 'boot'
require 'csv'
require 'rails/all'

# Require the gems listed in Gemfile, including any gems
# you've limited to :test, :development, or :production.
Bundler.require(*Rails.groups)

module Giant
  class Application < Rails::Application

## Gist
Rails 4 - Respond only to JSON and not HTML

I believe there are 2 parts here:
1) json only requests in rails
2) json only responses in rails

1) Configure your application controller to ensure json requests only

# app/controller/application_controller.rb
before_action :ensure_json_request

## 0_reuse_code.js
// Use Gists to store code you would like to remember later on
console.log(window); // log the "window" object to the console
	sudo -i
	cd
	apt-get install build-essential checkinstall && apt-get build-dep imagemagick -y
	wget http://www.imagemagick.org/download/ImageMagick.tar.gz
	tar xzvf ImageMagick-6.8.9-1.tar.gz
	cd ImageMagick-6.8.9-1/
	./configure --prefix=/opt/imagemagick-6.8 && make
	checkinstall
	if &compatible
	set nocompatible
	end

	filetype off
	set rtp+=~/.vim/bundle/Vundle.vim/
	call vundle#begin()

	" Let Vundle manage Vundle
	Plugin 'gmarik/Vundle.vim'
	# lib/templates/active_record/model/model.rb
	<% module_namespacing do -%>
	class <%= class_name %> < <%= parent_class_name.classify %>
	# keep the default scope first (if any)

	# constants come up next

	# afterwards we put attr related macros

	# followed by association macros
	You can specify an explicit logger in your config;

	my_logger = ActiveSupport::BufferedLogger.new(path)
	config.logger = my_logger
	This will replace Rails.logger
	Create the file /etc/apt/sources.list.d/pgdg.list, and add a line for the repository
	deb http://apt.postgresql.org/pub/repos/apt/ xenial-pgdg main

	wget --quiet -O - https://www.postgresql.org/media/keys/ACCC4CF8.asc \| \
	sudo apt-key add -
	sudo apt-get update

	sudo apt-get install postgresql-9.6 postgresql-server-dev-9.6 postgresql-contrib-9.6 -y

	sudo su - postgres -c "psql template1 -p 5433 -c 'CREATE EXTENSION IF NOT EXISTS hstore;'"
	require_relative 'boot'
	require 'csv'
	require 'rails/all'

	# Require the gems listed in Gemfile, including any gems
	# you've limited to :test, :development, or :production.
	Bundler.require(*Rails.groups)

	module Giant
	class Application < Rails::Application
	Rails 4 - Respond only to JSON and not HTML

	I believe there are 2 parts here:
	1) json only requests in rails
	2) json only responses in rails

	1) Configure your application controller to ensure json requests only

	# app/controller/application_controller.rb
	before_action :ensure_json_request
	// Use Gists to store code you would like to remember later on
	console.log(window); // log the "window" object to the console