antoniosmgatto

Dev Book

Links úteis para um desenvolvedor

Markdown

• https://help.github.com/articles/basic-writing-and-formatting-syntax/

• https://guides.github.com/features/mastering-markdown/

antoniosmgatto

Docker - Comandos Úteis

remove imagens/containers locais

docker-compose down -v --rmi=local --remove-orphans

sobre os containers recriando as imagens e containers

docker-compose up --build --force-recreate

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# create a new express app
express clubeincentivo-api -v pug

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foo bar

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Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry's standard dummy text ever since the 1500s, when an unknown printer took a galley of type and scrambled it to make a type specimen book. It has survived not only five centuries, but also the leap into electronic typesetting, remaining essentially unchanged. It was popularised in the 1960s with the release of Letraset sheets containing Lorem Ipsum passages, and more recently with desktop publishing software like Aldus PageMaker including versions of Lorem Ipsum. Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry's standard dummy text ever since the 1500s, when an unknown printer took a galley of type and scrambled it to make a type specimen book. It has survived not only five centuries, but also the leap into electronic typesetting, remaining essentially unchanged. It was popularised in the 1960s with the release of Letraset sheets containing Lor

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Postgres tips

DML = Data Manipulation language (INSERT, UPDATE, DELETE and SELECT) DDL = Data definition Language (CREATE, ALTER, DROP)

smallserial, serial and bigserial columns are autoincrement

psql commands

Show roles: \du

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\set PROMPT1 '%M:%[%033[1;31m%]%>%[%033[0m%] %n@%/%R%#%x '
\set ON_ERROR_ROLLBACK interactive
\set COMP_KEYWORD_CASE upper
\set HISTFILE ~/.psql/history- :DBNAME
\timing
\x auto
\pset pager off
\pset null '(null)'

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SQL tips

from Rails Conf 2017 - The Secret Life of SQL

An index is a copy

Rules

1. Any columns involved in queries should be covered by an index

• but avoid redundant and unused index.

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String

In this introductory challenge, your task is to use each of the above three methods to return the text Hello World and others!

def single_quote
  # single quote string here
    'Hello World and others!'
end

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require "capistrano/setup"
require "capistrano/deploy"
require "capistrano/bundler"
require "capistrano/scm/git"
require "capistrano/rails/assets"
require "capistrano/rails/migrations"
require "capistrano/data_migrate"
require "capistrano/rbenv"