En estos ejemplos la Tabla A tiene un has_many y la Tabla B un belongs_to y no tienen en cuenta que en la Tabla B podría haber varias referencias al mismo registro de la Tabla A, lo que produce duplicados de los registros de la Tabla A al hacer los joins.
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| # Use with Ubuntu 22.04 jammy | |
| # Prepare system | |
| sudo apt update | |
| sudo apt upgrade -y | |
| # install docker |
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| class ApplicationController < ActionController::Base | |
| private | |
| attr_reader :execution | |
| def execute(action, params={}) | |
| @execution = action.new(params.reverse_merge(default_execute_params).call | |
| end | |
| def default_execute_params |
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| class ActionBase | |
| def self.call(*params) | |
| new(*params).call | |
| end | |
| def self.on(event, *methods) | |
| methods.each { |m| __on_listeners[event.to_sym] << m.to_sym } | |
| end | |
| def self.__on_listeners |
$ sudo apt-get update
$ sudo apt-get install ca-certificates curl gnupg lsb-release
$ curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo gpg --dearmor -o /usr/share/keyrings/docker-archive-keyring.gpg
$ echo \
"deb [arch=$(dpkg --print-architecture) signed-by=/usr/share/keyrings/docker-archive-keyring.gpg] https://download.docker.com/linux/ubuntu \
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| { | |
| "Version": "2012-10-17", | |
| "Statement": [ | |
| { | |
| "Effect": "Allow", | |
| "Action": [ | |
| "s3:ListBucket" | |
| ], | |
| "Resource": [ | |
| "arn:aws:s3:::bucket-name" |
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| #!/usr/bin/env bash | |
| docker run \ | |
| -d \ | |
| --name "redis" \ | |
| --restart unless-stopped \ | |
| -p 6379:6379 \ | |
| --mount 'type=volume,source=redis_storage,target=/data,volume-driver=local' \ | |
| redis |
- Abrimos Arduino > Preferences
- Añadimos "http://arduino.esp8266.com/stable/package_esp8266com_index.json" al cuadro de texto
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| #!/usr/bin/env bash | |
| docker run \ | |
| -d \ | |
| --name "mysql" \ | |
| --restart unless-stopped \ | |
| -p 3306:3306 \ | |
| --mount 'type=volume,source=mysql_storage,target=/var/lib/mysql,volume-driver=local' \ | |
| -e MYSQL_ALLOW_EMPTY_PASSWORD=yes \ | |
| mysql:5.7 |
