jorgevilaca82

jorgevilaca82

jorgevilaca82

jorgevilaca82

defmodule Error do

  defstruct code: nil, message: nil, details: nil

  @doc """
  Creates a new error struct

  ## Usage:

      iex> Error.new("E001", "This is an error") 

jorgevilaca82

defmodule ExternalUser do
  use Ecto.Schema

  import Ecto.Changeset

  @primary_key false
  embedded_schema do
    field(:first_name, :string)
    field(:last_name, :string)
  end

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defmodule ExternalAPIRouter do
  use Phoenix.Router
  import Plug.Conn
  import Phoenix.Controller

  scope "/api/v1" do
    get("me2", __MODULE__, :me)
    get("product/:product_id", __MODULE__, :product_detail)
  end

jorgevilaca82

defmodule UserMapperFunctions do
  def map_my_address(%{
        address: address,
        city: city,
        province: province,
        country: country,
        postalCode: postalCode
      }) do
    "#{address}, #{city}, #{province}, #{country}, #{postalCode}"
  end

jorgevilaca82

shopping_cart = [
    {"item": "Apple", "price": 0.5, "quantity": 10},
    {"item": "Milk", "price": 1.5, "quantity": 2},
    {"item": "Bread", "price": 2.0, "quantity": 1}
]

def item_cost(item):
    return item["price"] * item["quantity"]

sum(map(item_cost, shopping_cart))

jorgevilaca82

defmodule ServiceSwitcher do
  defmacro __using__(opts \\ []) do
    service_module_mapping = opts[:service_module_mapping]

    quote do
      @service_module_mapping unquote(service_module_mapping)
      @services Keyword.keys(@service_module_mapping)

      def get_service_module(service) when is_binary(service),
        do: service |> String.to_atom() |> get_service_module()

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defmodule T do
  import Ecto.Query
  alias MyApp.Repo
  def test() do
    from(s in "users", select: [:id]) |> Repo.one()
  rescue
    Ecto.MultipleResultsError -> IO.puts("Sorry. Things didn't go well.")
  end
end