Krug.EctoEnviroment behaviour (Krug v2.0.27) View Source

Defines a behaviour for higher-level Ecto enviroments key values.

The module that implement this, should be passed as enviroment: value option on module that extends Krug.EnviromentReader

Utilization Example:

defmodule MyApp.Enviroment do

  @behaviour Krug.EctoEnviroment

  @impl Krug.EctoEnviroment
  def get_enviroment(type) do
    cond do
      (type == "prod") -> get_enviroment_list_prod()
      true -> get_enviroment_list_dev()
    end
  end

end

defmodule MyApp.Enviroment.Reader do

  use Krug.EnviromentReader, decisor: MyApp.EnviromentDecisor, enviroment: MyApp.Enviroment

end

Link to this section Summary

Callbacks

get_enviroment(type)

Should return an array of strings, based on value received ("dev" or "prod") containing key pars values based on schema: "key=value".

Link to this section Callbacks

get_enviroment(type)

Specs

get_enviroment(type :: String.t()) :: [String.t()]

Should return an array of strings, based on value received ("dev" or "prod") containing key pars values based on schema: "key=value".

-Example:

defmodule MyApp.Enviroment do

  @behaviour Krug.EctoEnviroment

  @impl Krug.EctoEnviroment
  def get_enviroment(type) do
    cond do
      (type == "prod") -> get_enviroment_list_prod()
      true -> get_enviroment_list_dev()
    end
  end

  defp get_enviroment_list_dev() do
    ["APPDB_HOST=127.0.0.1","APPDB_PORT=3306","APPDB_DATABASE=elixir_app_db_development",
  "APPDB_USERNAME=root","APPDB_PASSWORD=123456"]
  end

  defp get_enviroment_list_prod() do
    ["APPDB_HOST=127.0.0.1","APPDB_PORT=3306","APPDB_DATABASE=elixir_app_db_production",
  "APPDB_USERNAME=root","APPDB_PASSWORD=123456"]
  end

end