Rocketpay

To start your Phoenix server:

• Install dependencies with mix deps.get
• Create and migrate your database with mix ecto.setup
• Start Phoenix endpoint with mix phx.server

Now you can visit localhost:4000 from your browser.

Ready to run in production? Please check our deployment guides.

Aula 1

• iex -S mix - elixir interativo dentro do projeto (podem ser usados os módulos)
• alias Rocketpay.Numbers - cria um alias para o módulo (=Numbers)
• alias Rocketpay.Numbers, as: Batata - cria um alias para o módulo (=Batata)
• IO.inspect() - se colocado no meio de uma estrutura de pipes, inspeciona o retorno da função de cima
• mix deps.get - instala todas as dependências presentes no arquivo mix.exs
• mix phx.server - roda o servidor do app

Aula 2

• mix ecto.create - cria o banco de dados do projeto
• mix ecto.gen.migration create_<table's name>_table - cria uma tabela no banco de dados
• mix ecto.migrate - executa as migrations
• mix ecto.drop - deleta o banco de dados do projeto

Aula 3

• Rocketpay.Repo.all(Rocketpay.User) - ver todos os registros de usuários no banco (rodar dentro do elixir interativo)
• Repo.preload(:<foreign_key_field>) - carrega as chaves estrangeiras dos registros buscados no banco. uso:

> alias Rocketpay.Repo
> Repo.all(Rocketpay.User) |> Repo.preload(:account)


# output:

%Rocketpay.User{
   __meta__: #Ecto.Schema.Metadata<:loaded, "users">,
   account: %Rocketpay.Account{
     __meta__: #Ecto.Schema.Metadata<:loaded, "accounts">,
     balance: #Decimal<0.00>,
     id: "2e2293e9-dced-497e-888d-8a963c26d6af",
     inserted_at: ~N[2021-02-24 23:25:10],
     updated_at: ~N[2021-02-24 23:25:10],
     user: #Ecto.Association.NotLoaded<association :user is not loaded>,
     user_id: "34405083-b1e7-4ac0-a65d-877604dbd85d"
   },
   age: 27,
   email: "duda@duda.com",
   id: "34405083-b1e7-4ac0-a65d-877604dbd85d",
   inserted_at: ~N[2021-02-24 23:08:43],
   name: "duda",
   nickname: "dudinha",
   password: nil,
   password_hash: "$2b$12$1IEC50fe7ymewdEbittaQehHcYXhKPy59w2ziMrqBh.s.26J0TvR6",
   updated_at: ~N[2021-02-24 23:08:43]
 }
]

Learn more

• Official website: https://www.phoenixframework.org/
• Guides: https://hexdocs.pm/phoenix/overview.html
• Docs: https://hexdocs.pm/phoenix
• Forum: https://elixirforum.com/c/phoenix-forum
• Source: https://github.com/phoenixframework/phoenix