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我设置了一个单独的注册和登录系统。我正在使用带有rails 6的omniauth2构建一个应用程序，让用户安排推文发布。我正在使用omniauth2，因此用户可以授权应用程序访问他们的帐户

我想从omniauth2数据中获取用户的用户名和头像，但是当用户授权时它没有显示任何内容，我将发布相关的路由、控制器和视图代码

nil出现在我想要显示的类别的数据库中

控制台输出


irb(main):002:0> User.last.twitter_accounts


  id: 6,

  user_id: 7,

  name: nil,

  username: nil,

  image: nil,

  token: "[FILTERED]",

  secret: "[FILTERED]",

  created_at: Mon, 06 Dec 2021 01:56:09.804716000 UTC +00:00,

  updated_at: Mon, 06 Dec 2021 01:56:09.804716000 UTC +00:00

路线文件

Rails.application.routes.draw do
    get "about", to: "about#index", as: :about


    get "password", to: "passwords#edit", as: :edit_password
    patch "password", to: "passwords#update"

    get "sign_up", to: "registrations#new"
    post "sign_up", to: "registrations#create"

    get "sign_in", to: "sessions#new"
    post "sign_in", to: "sessions#create"

    delete "logout", to: "sessions#destroy"

    get "password/reset", to: "password_resets#new"
    post "password/reset", to: "password_resets#create"
    get "password/reset/edit", to: "password_resets#edit"
    post "password/reset/edit", to: "password_resets#update"

    get "/auth/twitter/callback", to: "omniauth_callbacks#twitter"

    resources :twitter_accounts

    root to: "main#index"
end

控制器文件

class OmniauthCallbacksController < ApplicationController
    def twitter
        twitter_account = Current.user.twitter_accounts.where(username: auth.info.nickname).first_or_initialize
        
        twitter_account.update(
            name: auth.info.name,
            image: auth.info.image,
            token: auth.credentials.token,
            secret: auth.credentials.secret,
        )

        redirect_to twitter_accounts_path, notice: "Twitter account was successfully connected"
    end

    def auth
        request.env["omniauth.auth"]
    end
end

视图文件

```

推特账号

<% @twitter_accounts.each 做 |twitter_account| %>
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