DEV Community: Estevan Jantsk

How to: use UUID as Primary Keys in Phoenix

Estevan Jantsk — Sun, 03 Jan 2021 00:08:49 +0000

So I decided to use UUIDs as primary keys for the resources I am creating in my webapp. The reason is cause I don't like the default one "auto increment integer".

So how to achieve this in Phoenix?

1. Add a custom schema

The idea with the code below is to override Ecto.Schema with our new config

# lib/your_app/schema.ex

defmodule YourApp.Schema do
  defmacro __using__(_) do
    quote do
      use Ecto.Schema
      @primary_key {:id, :binary_id, autogenerate: true}
      @foreign_key_type :binary_id
    end
  end
end

Now, on your schemas you should use use YourApp.Schema instead of Ecto.Schema

2. Fix your Migration!

This one is a very important step. The reason why is because by default when your run your migration it will try to create your tables using the default id (auto increment integer) to fix this is very simple

# config/config.exs

config :your_app, YourApp.Repo, migration_primary_key: [name: :id, type: :binary_id]

Now when you run your migrations to create your tables the id will be of type binary_id :D.

And that's it. Profit :).

Construindo um blog usando Nextjs e a API do DEV.to

Estevan Jantsk — Sun, 27 Dec 2020 12:14:12 +0000

https://youtube.com/playlist?list=PLXtrXUpbDsnExyxnF3J8iLBY8HsZXvv7w

E aí galera beleza? Então, resolvi criar esses vídeos para mostrar um pouco mais do Next.js, como consumir uma api (dev.to) usando SSR e por final fazer o deploy no Vercel.

source: https://github.com/estevanjantsk/next...
vercel: https://nextjsdevto-rhcc1sib4.vercel....

Nesse vídeo mostro um pouco mais do que iremos fazer na série.

📸 https://www.instagram.com/estevanj/

📝 https://twitter.com/estevanjantsk

Espero que gostem da playlist =DD.

Test 2 post

Estevan Jantsk — Sat, 19 Dec 2020 12:08:59 +0000

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