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我正在尝试将 Guardian 0.14 和 Guardian_db 0.8 与 elixir/phoenix 一起使用。但是，我一直在挂钩中遇到以下错误：

    [error] #PID<0.983.0> running Api.Endpoint terminated
Server: localhost:4000 (http)
Request: POST /api/login

    ** (exit) an exception was raised:
        ** (UndefinedFunctionError) function MyApp.Repo.insert/1 is undefined (module MyApp.Repo is not available)
            MyApp.Repo.insert(#Ecto.Changeset<action: nil, changes: %{claims: %{}}, errors: [jwt: {"is invalid", [type: :string, validation: :cast]}], data: #GuardianDb.Token<>, valid?: false>)
            lib/guardian_db.ex:87: GuardianDb.after_encode_and_sign/4
            (api) web/helpers/guardian_hooks.ex:12: Api.GuardianHooks.after_encode_and_sign/4
            (guardian) lib/guardian.ex:89: Guardian.encode_from_hooked/1
            (guardian) lib/guardian/plug.ex:183: Guardian.Plug.api_sign_in/4
            (api) web/controllers/user_controller.ex:81: Api.UserController.login_user/2
            (api) web/controllers/user_controller.ex:1: Api.UserController.action/2
            (api) web/controllers/user_controller.ex:1: Api.UserController.phoenix_controller_pipeline/2
            (api) lib/api/endpoint.ex:1: Api.Endpoint.instrument/4
            (api) lib/phoenix/router.ex:261: Api.Router.dispatch/2
            (api) web/router.ex:1: Api.Router.do_call/2
            (api) lib/api/endpoint.ex:1: Api.Endpoint.phoenix_pipeline/1
            (api) lib/plug/debugger.ex:123: Api.Endpoint."call (overridable 3)"/2
            (api) lib/api/endpoint.ex:1: Api.Endpoint.call/2
            (plug) lib/plug/adapters/cowboy/handler.ex:15: Plug.Adapters.Cowboy.Handler.upgrade/4
            (cowboy) /Users/me/source/proj/proj_api/deps/cowboy/src/cowboy_protocol.erl:442: :cowboy_protocol.execute/4

我的代码如下：

配置

# Guardian config
config :guardian, Guardian,
  issuer: "APIAPP",
  ttl: { 30, :days },
  allowed_drift: 2000,
  verify_issuer: true, 
  secret_key: "SECRETSECRETSECRET",
  serializer: Api.GuardianSerializer,
  hooks: Api.GuardianHooks

config :guardian_db, GuardianDb,
  repo: Api.Repo,
  schema_name: "guardian_tokens"

挂钩

defmodule Api.GuardianHooks do
  @moduledoc """
  Used for hooks for guardian
  """

      use Guardian.Hooks

      def after_encode_and_sign(resource, claims, token, _options) do
        claims = if (claims == nil), do: %{}, else: claims
        with {:ok, _} <- GuardianDb.after_encode_and_sign(resource, token["typ"], claims, token) do
          {:ok, token}
        end
      end

      def on_verify(claims, token, _options) do
        with {:ok, _} <- GuardianDb.on_verify(claims, token) do
          {:ok, claims}
        end
      end

      def on_revoke(claims, token, _options) do
        with {:ok, _} <- GuardianDb.on_revoke(claims, token) do
          {:ok, claims}
        end
      end

    end

为什么它不使用我在配置中传递给它的 repo？

另外，我在里面放了一个撬子，然后跑了GuardianDb.repo，它又回来了MyApp.Repo。就像它没有采用我的回购配置一样。

4

1 回答 1

4

guardian_db fetches the value of the repo key in the config at compile time, which means you'll need to recompile that package whenever you change the value of repo in your config. This can be done by running the following command:

mix deps.clean --build guardian_db
于 2017-10-05T19:40:28.307 回答