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Douglas Lara douglara

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@callmeloureiro
callmeloureiro / comoNaoDeixarNoVaucoNoWhatsapp.js
Last active June 5, 2021 13:29
Como não deixar no vácuo no whatsapp
/*
Hoje não deixaremos mais ninguém no vácuo no whatsapp
Para utilizar:
- Abra o web.whatsapp.com;
- Abra o console e cole o código que está no gist;
- Aguarde e verá uma mensagem sendo enviada a cada momento que alguém te enviar alguma mensagem.
Confira também como ser chato no whatsapp: https://gist.github.com/mathloureiro/4c74d60f051ed59650cc76d1da0d32da
e como ser chato no mensseger: https://gist.github.com/mathloureiro/d3f91d19cf148838217e42a0c6df5ed8
*/
@mankind
mankind / rails-jsonb-queries
Last active May 23, 2024 06:47
Ruby on Rails-5 postgresql-9.6 jsonb queries
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")
@belgoros
belgoros / AWS S3-Paperclip5-Heroku.md
Created November 3, 2016 21:43
Setup Rails app with Paperclip 5, Amazon S3 and Heroku

Setting Amazon S3 for Paperclip and Heroku

The latest Paperclip release 5.1.0 has changed a little bit the way to set it up with Amazon S3 service (Amazon Simple Storage Service). Moreover, after googling a lot here and there, we could see many solutions and settings, some of them being outdated, some - often different and did not work well. So I decided to summarize in one replace all the steps needed to set up your Rails application deployed on Heroku and be able to use it with Paperclip 5 and Amazon S3 service.

In case you don't know, Heroku does not allow your Rails application to write and offers read only access. What means that you can't use Paperclip and save your files to Heroku's file system.

So you will have to find a way to upload/store/read your files. As stated in Paperclip documentation, Paperclip ships with 3 storage adapters:

@mattbrictson
mattbrictson / Gemfile
Created September 11, 2015 15:55
Using vcr with Minitest + Rails (test unit style)
group :test do
gem "minitest"
gem "vcr"
gem "webmock", "~> 1.15.0"
end
@jwicks
jwicks / sidekiq-worker-cloudwatch-queue-size.rb
Last active November 21, 2019 07:14
Sidekiq worker for publishing queue size metric to AWS CloudWatch
class QueueSizeMetricWorker
include Sidekiq::Worker
include Sidetiq::Schedulable
recurrence { minutely }
sidekiq_options retry: false
# Publish a custom metric on CloudWatch with the Sidekiq queue size
def perform
cloudwatch = Aws::CloudWatch::Client.new(
@kelvinst
kelvinst / create-ruby-gem.md
Last active November 29, 2023 02:04
Como criar uma gem ruby?

Como criar uma gem ruby?

Escolhi tratar sobre esse assunto hoje simplesmente porque foi uma das primeiras coisas que me perguntei "como eu faço isso?" no mundo ruby. Acredito que muita gente se pergunte a mesma coisa e espero que eu possa ajudar em algo para elas. 😀

O que é uma gem?

Bem, se você é um programador java, você chama sua gem de jar, se você é um programador C#, você chama de dll. Resumindo, é uma lib, uma biblioteca contendo códigos que você pode reaproveitar importando em outros projetos.

E usar gems no ruby é muito fácil, se você já deu uma brincada com rails por exemplo, é só você adicionar o código gem 'nome_da_gem' no arquivo Gemfile que está no root, depois executar o comando bundle install para baixar sua gem do repositório e pronto, só sair usando a biblioteca!

@wdullaer
wdullaer / install.sh
Last active April 2, 2024 20:33
Install Latest Docker and Docker-compose on Ubuntu
# Ask for the user password
# Script only works if sudo caches the password for a few minutes
sudo true
# Install kernel extra's to enable docker aufs support
# sudo apt-get -y install linux-image-extra-$(uname -r)
# Add Docker PPA and install latest version
# sudo apt-key adv --keyserver hkp://keyserver.ubuntu.com:80 --recv-keys 36A1D7869245C8950F966E92D8576A8BA88D21E9
# sudo sh -c "echo deb https://get.docker.io/ubuntu docker main > /etc/apt/sources.list.d/docker.list"
/**
* Retrieves all the rows in the active spreadsheet that contain data and logs the
* values for each row.
* For more information on using the Spreadsheet API, see
* https://developers.google.com/apps-script/service_spreadsheet
*/
function readRows() {
var sheet = SpreadsheetApp.getActiveSheet();
var rows = sheet.getDataRange();
var numRows = rows.getNumRows();
@stereoscott
stereoscott / active_admin_extensions.rb
Created January 12, 2014 00:29
Sample ActiveRecord model that uses paperclip to upload a csv report to s3
module ActiveAdmin
module Reports
module DSL
def enable_reports
action_item only: :index do
link_to("Download", {action: :report, params: params}, {method: :post, data: { confirm: "Are you sure you want to generate this report?"}})
end
collection_action :report, method: :post do
@MohamedAlaa
MohamedAlaa / tmux-cheatsheet.markdown
Last active May 27, 2024 09:43
tmux shortcuts & cheatsheet

tmux shortcuts & cheatsheet

start new:

tmux

start new with session name:

tmux new -s myname