Diego Linhares diegolinhares

Semantic Commit Messages

See how a minor change to your commit message style can make you a better programmer.

Format: <type>(<scope>): <subject>

<scope> is optional

Assuming you already have a Devise model named User and you want to add following Devise Security Extension to it:

You have installed GPG, then tried to perform a git commit and suddenly you see this error message after it 😰

error: gpg failed to sign the data
fatal: failed to write commit object

Understand the error (important to solve it later!)

A xUnit family unit testing microframework for Ruby.

Ruby >= 2.2.2

This document was created back in 2020 and might not be actual nowadays. It is not supported anymore, so use thise information at your own risk.

Download WSL2 Kernel
run wsl --set-default-version 2 in windows command line, so that all future WSL machine will use WSL2.

	class InitialMigration < ActiveRecord::Migration[5.0]
	def change
	enable_extension "pgcrypto" unless extension_enabled?("pgcrypto")
	end
	end

	http://stackoverflow.com/questions/22667401/postgres-json-data-type-rails-query
	http://stackoverflow.com/questions/40702813/query-on-postgres-json-array-field-in-rails

	#payload: [{"kind"=>"person"}]
	Segment.where("payload @> ?", [{kind: "person"}].to_json)

	#data: {"interest"=>["music", "movies", "programming"]}
	Segment.where("data @> ?", {"interest": ["music", "movies", "programming"]}.to_json)
	Segment.where("data #>> '{interest, 1}' = 'movies' ")
	Segment.where("jsonb_array_length(data->'interest') > 1")

	# frozen_string_literal: true
	class AssociationLoader < GraphQL::Batch::Loader
	attr_reader :klass, :association

	def initialize(klass, association)
	raise ArgumentError, "association to load must be a symbol (got #{association.inspect})" unless association.is_a?(Symbol)
	raise ArgumentError, "cannot load associations for class #{klass.name}" unless klass < ActiveRecord::Base
	raise TypeError, "association #{association} does not exist on #{klass.name}" unless klass.reflect_on_association(association)

	@klass = klass

	class AddRecordUuidToActiveStorageAttachments < ActiveRecord::Migration[5.2]
	def change
	# After applying this migration, you'll need to manually go through your
	# attachments and populate the new `record_uuid` column.
	# If you're unable to do this, you'll probably have to delete all your attachments.
	# You've pretty much got useless garbage data if that's the case :(
	add_column :active_storage_attachments, :record_uuid, :uuid
	end
	end