Replace hard-coded references to Ecto.Adapters.Postgres with this macro to enable the Phoenix.Sync.Sandbox in test mode.

In development or production environments the repo will use the standard Postgres adapter directly, only if Mix.env() == :test (see below) will it use the sandbox adapter shim.

Example:

defmodule MyApp.Repo do
  use Phoenix.Sync.Sandbox.Postgres

  use Ecto.Repo,
    otp_app: :my_app,
    adapter: Phoenix.Sync.Sandbox.Postgres.adapter()
end

Custom environments

If you want to enable the sandbox adapter in different environments, you can use your own evaluation logic:

defmodule MyApp.Repo do
  use Phoenix.Sync.Sandbox.Postgres

  use Ecto.Repo,
    otp_app: :my_app,
    adapter: Phoenix.Sync.Sandbox.Postgres.adapter(Mix.env() in [:test, :special])
end