Question

我通过“登录”进行授权，因此会出现这样的错误：

在2018-08-07 10:20:55为10.12.4.5开始POST“ / auth / sign_in”   +0500

LoadError（无法自动加载常量Overrides :: SessionsController，   预期的/ home / admin /Рабочий   стол/ demo / backend / app / controllers / overrides / sessions_controller.rb至   定义它）：

activesupport（5.1.6）lib / active_support / dependencies.rb：512：in   load_missing_constant' activesupport (5.1.6) lib/active_support/dependencies.rb:202:in const_missing'   activesupport（5.1.6）lib / active_support / inflector / methods.rb：284：in   const_get' activesupport (5.1.6) lib/active_support/inflector/methods.rb:284:in阻止常量化”   activesupport（5.1.6）lib / active_support / inflector / methods.rb：267：in   each' activesupport (5.1.6) lib/active_support/inflector/methods.rb:267:in注入'主动支持   （5.1.6）lib / active_support / inflector / methods.rb：267：in constantize' activesupport (5.1.6) lib/active_support/dependencies.rb:583:in get'   activesupport（5.1.6）lib / active_support / dependencies.rb：614：in   constantize' actionpack (5.1.6) lib/action_dispatch/http/request.rb:85:in controller_class_for'   actionpack（5.1.6）lib / action_dispatch / http / parameters.rb：99：in   binary_params_for?' actionpack (5.1.6) lib/action_dispatch/http/parameters.rb:90:in set_binary_encoding'   actionpack（5.1.6）lib / action_dispatch / http / parameters.rb：67：in   path_parameters=' actionpack (5.1.6) lib/action_dispatch/journey/router.rb:48:in阻止发球   actionpack（5.1.6）lib / action_dispatch / journey / router.rb：33：in each' actionpack (5.1.6) lib/action_dispatch/journey/router.rb:33:in serve'   actionpack（5.1.6）lib / action_dispatch / routing / route_set.rb：844：in   call' warden (1.2.7) lib/warden/manager.rb:36:in阻止通话”   管理员（1.2.7）lib / warden / manager.rb：35：in catch' warden (1.2.7) lib/warden/manager.rb:35:in呼叫机架（2.0.5）lib / rack / etag.rb：25：in   call' rack (2.0.5) lib/rack/conditional_get.rb:38:in呼叫机架   （2.0.5）lib / rack / head.rb：12：在call' activerecord (5.1.6) lib/active_record/migration.rb:556:in中调用'Actionpack（5.1.6）   lib / action_dispatch / middleware / callbacks.rb：26：在block in call' activesupport (5.1.6) lib/active_support/callbacks.rb:97:in run_callbacks的操作包（5.1.6）中   lib / action_dispatch / middleware / callbacks.rb：24：in call' actionpack (5.1.6) lib/action_dispatch/middleware/executor.rb:12:in call'   动作包（5.1.6）   lib / action_dispatch / middleware / debug_exceptions.rb：59：在call' actionpack (5.1.6) lib/action_dispatch/middleware/show_exceptions.rb:31:in通话中   railties（5.1.6）lib / rails / rack / logger.rb：36：在call_app' railties (5.1.6) lib/rails/rack/logger.rb:24:in中阻止通话中的activesupport   （5.1.6）lib / active_support / tagged_logging.rb：69：在block in tagged' activesupport (5.1.6) lib/active_support/tagged_logging.rb:26:in标签为'activesupport（5.1.6）中   lib / active_support / tagged_logging.rb：69：tagged' railties (5.1.6) lib/rails/rack/logger.rb:24:in通话中的actionpack（5.1.6）   lib / action_dispatch / middleware / remote_ip.rb：79：在call' request_store (1.4.1) lib/request_store/middleware.rb:19:in通话中   （5.1.6）lib / action_dispatch / middleware / request_id.rb：25：in call' rack (2.0.5) lib/rack/runtime.rb:22:in致电“ activesupport（5.1.6）”   lib / active_support / cache / strategy / local_cache_middleware.rb：27：in   call' actionpack (5.1.6) lib/action_dispatch/middleware/executor.rb:12:in通话'行动包   （5.1.6）lib / action_dispatch / middleware / static.rb：125：在call' rack (2.0.5) lib/rack/sendfile.rb:111:in中调用'rack-cors（1.0.2）   lib / rack / cors.rb：97：在call' railties (5.1.6) lib/rails/engine.rb:522:in中叫'美洲狮（3.11.4）   lib / puma / configuration.rb：225：in call' puma (3.11.4) lib/puma/server.rb:632:in handle_request'puma（3.11.4）   lib / puma / server.rb：446：in process_client' puma (3.11.4) lib/puma/server.rb:306:in中的run'puma块（3.11.4）   lib / puma / thread_pool.rb：120：in`spawn_thread中的块'

TypeError（SessionsController类的超类不匹配）：

app / controllers / overrides / sessions_controller.rb：1：in''

/overrides/sessions_controller.rb：

class SessionsController < DeviseTokenAuth::ApplicationController

  def resource_data(opts = {})
    opts[:resource_json] || @resource.as_json
  end

  def render_new_error
    render json: {
      errors: [I18n.t("devise_token_auth.sessions.not_supported")]
    }, status: 405
  end

  def render_create_success
    render json: {
      sponsor: resource_data(resource_json: @resource.userable.token_validation_response)
    }
  end

  def render_create_error_not_confirmed
    render json: {
      errors: [I18n.t("devise_token_auth.sessions.not_confirmed", login: @resource.login)]
    }, status: 404
  end

  def render_create_error_bad_credentials
    render json: {
      errors: [I18n.t("devise_token_auth.sessions.bad_credentials")]
    }, status: 402
  end

  def render_destroy_success
    render json: {
    }, status: 200
  end

  def render_destroy_error
    render json: {
      errors: [I18n.t("devise_token_auth.sessions.user_not_found")]
    }, status: 404
  end

结束

application_controller.rb：

class ApplicationController < ActionController::API
  include DeviseTokenAuth::Concerns::SetUserByToken
end

routes.rb：

Rails.application.routes.draw do
  mount_devise_token_auth_for 'User', at: 'auth', controllers: {
    sessions:  'overrides/sessions'
  }
end

Answer 1

实际上，错误消息指出需要做什么：

无法自动加载常量Overrides :: SessionsController，需要/ home / admin /Рабочийстол/ demo / backend / app / controllers / overrides / sessions_controller.rb进行定义）

Rails期望app/controllers/overrides/sessions_controller.rb定义Overrides::SessionsController，但找不到它。

将您的控制器类定义更改为：

class Overrides::SessionsController < DeviseTokenAuth::ApplicationController
  ...
end

TypeError（类SessionsController的超类不匹配）

1 个答案: