kadru / rails http status codes

Created November 22, 2018 03:34 — forked from mlanett/rails http status codes

HTTP status code symbols for Rails

	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

kadru / ruby_time_cheat_sheet.rb

Created November 16, 2018 22:04


	#Date Formatting I
	'%Y' #Year with century (e.g. 2015, 1995, etc)
	'%m' #Month of the year, zero-padded (01..12)
	'%B' #The full month name (e.g. January)
	'%b' #The abbreviated month name (e.g. Jan)
	'%d' #Day of the month, zero-padded (01..31)
	'%j' #Day of the year (001..366)

kadru / safe_nav_op_enum_dig.rb

Created November 11, 2018 03:11

safe navigation operator & and Enumerable #dig (ruby 2.3 and up)

	#Safe navigation operator
	if account && account.owner && account.owner.address
	#your code here
	end
	#could be rewritten like
	account&.owner&.address

	#more examples
	account = Account.new(owner: nil) # account without an owner
	#

kadru / commands_related_to_processes.sh

Last active January 30, 2019 21:27

Command related to processes

	#get env variables of a process
	sudo xargs --null --max-args=1 < /proc/<pid>/environ

	#get command of a process
	ps -fp <pid>
	cat /proc/<pid>/cmdline

kadru / private_public_protected_example.rb

Created October 19, 2018 02:01

Explain ruby protected, private and public methods

	#dwarf.rb
	class Dwarf
	include Comparable

	def initialize(name, age, beard_strength)
	@name = name
	@age = age
	@beard_strength = beard_strength
	end

kadru / webpacker_rails.md

Created October 15, 2018 04:41 — forked from maxivak/webpacker_rails.md

Webpack, Yarn, Npm in Rails

Webpack in Rails

	##
	# This files shows some possible implementations of the Singleton pattern
	# in Ruby. I'm not a huge fan of the Singleton pattern, but it's nice
	# in some cases. In this file I'm going to implement a simple logger.
	#


	##
	# The first implementation that can come to our minds is to create a class
	# that holds an instance as a class variable that can be accessed through

	module RunStrategies
	class RunStrategyInterface
	def self.run(name)
	raise "Run method has not been implemented!"
	end
	end

	class Jog < RunStrategyInterface
	def self.run(name)
	puts "#{name} is now jogging at a comfortable pace."

	SELECT DATA_TYPE
	FROM INFORMATION_SCHEMA.COLUMNS
	WHERE
	TABLE_NAME = 'yourTableName'
	COLUMN_NAME = 'yourColumnName'

	class DatabaseHelper
	def self.select name, *args, &blk
	execute "select", name, *args, &blk
	end

	def self.call name, *args, &blk
	execute "call", name, *args, &blk
	end

	def self.execute via, name, *args, &blk

Oscar Rivas kadru