Devise + Omniauth Twitter + Twitter Gemの更新属性

Question

私は助けが必要です。 userモデルを設定するのにDeviseを使用しました。 userは多くがaccountsです。 accountはuserに属します。私はaccountの属性を、コールバック後にTwitter APIから取得するいくつかのハッシュ値で更新できるようにしたいと考えています。私が持っているものでは、Twitterからのコールバックの後に、accountの属性は全く更新されず、nilのままです。 accountを更新して、Twitterコールバック後にuid,などを保持するにはどうすればよいですか。これは私がやろうとしていることです。 twitter_accounts_controller.rb

class TwitterAccountsController < ApplicationController 
    def create 
    @account = Account.find_or_create_from_auth_hash(auth_hash) 
    @account.user = current_user 
    redirect_to root_path 
    end 

    protected 
    def auth_hash 
    request.env['omniauth.auth'] 
    end 
end 


accounts_controller.rb 
class AccountsController < ApplicationController 
    before_action :authenticate_user! 
    before_action :set_account, only: [:edit, :update, :destroy, :show] 

    def index 
    @accounts = Account 
    @user = current_user 
    end 

    def new 
    @account = Account.new 
    end 

    def create 
    @account = Account.new(account_params) 
    @account.user = current_user 

    if @account.save 
     $twitter.update("@someone from Rails app on Heroku") 
     flash[:success] = "Account succesfully created." 
     redirect_to @account 
    else 
     flash.now[:warning] = "Oops, something went wrong!" 
     render 'new' 
    end 
    end 

    def show 
    end 

    def edit 
    end 

    def update 
    if @account.update_attributes(account_params) 
     flash[:success] = "Account changes succesfully commited." 
    else 
     render 'edit' 
    end 
    end 

    def destroy 
    if @account.destroy 
     flash[:success] = "Account is gone!" 
     redirect_to root_path 
    end 
    end 

    private 
    def account_params 
    params.require(:account).permit(:account_name, :description, posts_attributes: [:tweet]) 
    end 

    def set_account 
    @account = Account.find(params[:id]) 
    rescue ActiveRecord::RecordNotFound 
    flash[:danger] = "The account you are looking for doesn't even exist! " 
    redirect_to accounts_path 
    end 
end 

account.rb

class Account < ActiveRecord::Base 
    before_save :capitalize_name 

    belongs_to :user 
    has_many :posts, dependent: :destroy 

    accepts_nested_attributes_for :posts 

    validates :account_name, :description, presence: :true 

    default_scope { order('created_at DESC') } 

    def self.find_or_create_from_auth_hash(auth_hash) 
     account = where(provider: auth_hash.provider, uid: auth_hash.uid).first_or_create 
     account.update_attributes(
      name: auth_hash.info.name, 
      profile_image: auth_hash.info.image, 
      token: auth_hash.credentials.token, 
      secret: auth_hash.credentials.secret 
     ) 
     account 
    end 

    private 
    def capitalize_name 
     self.account_name = self.account_name.split.map { |name| name.capitalize }.join(" ") 
    end 
end 

schema.rb

ActiveRecord::Schema.define(version: 20160322001131) do 

    # These are extensions that must be enabled in order to support this database 
    enable_extension "plpgsql" 

    create_table "accounts", force: :cascade do |t| 
    t.string "account_name" 
    t.string "description" 
    t.datetime "created_at", null: false 
    t.datetime "updated_at", null: false 
    t.integer "user_id" 
    t.string "provider" 
    t.string "uid" 
    t.string "token" 
    t.string "secret" 
    t.string "profile_image" 
    t.string "name" 
    end 

    add_index "accounts", ["user_id"], name: "index_accounts_on_user_id", using: :btree 

    create_table "posts", force: :cascade do |t| 
    t.text  "tweet" 
    t.datetime "created_at", null: false 
    t.datetime "updated_at", null: false 
    t.integer "account_id" 
    end 

    add_index "posts", ["account_id"], name: "index_posts_on_account_id", using: :btree 

    create_table "users", force: :cascade do |t| 
    t.string "email",     default: "", null: false 
    t.string "encrypted_password",  default: "", null: false 
    t.string "reset_password_token" 
    t.datetime "reset_password_sent_at" 
    t.datetime "remember_created_at" 
    t.integer "sign_in_count",   default: 0, null: false 
    t.datetime "current_sign_in_at" 
    t.datetime "last_sign_in_at" 
    t.inet  "current_sign_in_ip" 
    t.inet  "last_sign_in_ip" 
    t.datetime "created_at",       null: false 
    t.datetime "updated_at",       null: false 
    end 

    add_index "users", ["email"], name: "index_users_on_email", unique: true, using: :btree 
    add_index "users", ["reset_password_token"], name: "index_users_on_reset_password_token", unique: true, using: :btree 

    add_foreign_key "accounts", "users" 
    add_foreign_key "posts", "accounts" 
end 

user.rb

class User < ActiveRecord::Base 
    # Include default devise modules. Others available are: 
    # :confirmable, :lockable, :timeoutable and :omniauthable 
    devise :database_authenticatable, :registerable, 
     :recoverable, :rememberable, :trackable, :validatable 

    has_many :accounts 
end 

Herokuのコンソールでは、これらのを示しますコールバック後の属性。あなたは常にあなたのfind_or_create_from_auth_hash方法では、最初に新しいレコードを作成しているので

validates :account_name, :description, presence: :true 

def self.find_or_create_from_auth_hash(auth_hash) 
    account = where(provider: auth_hash.provider, uid: auth_hash.uid).first_or_create 

    account.update_attributes(
    name: auth_hash.info.name, 
    profile_image: auth_hash.info.image, 
    token: auth_hash.credentials.token, 
    secret: auth_hash.credentials.secret 
) 

    account 
end 

、あなたはaccount_nameまたはdescription、の両方を設定したことがない：あなたのAccountモデルで

irb(main):013:0> Account.first 
    Account Load (1.2ms) SELECT "accounts".* FROM "accounts" ORDER BY created_at DESC LIMIT 1 
    Account Load (1.2ms) SELECT "accounts".* FROM "accounts" ORDER BY created_at DESC LIMIT 1 
=> #<Account id: 7, account_name: "Fadsa Adafda", description: "adfasdf", created_at: "2016-03-22 01:29:47", updated_at: "2016-03-22 01:29:47", user_id: 1, provider: nil, uid: nil, token: nil, secret: nil, profile_image: nil, name: nil> 

Answer 1

、次のしています必要なフィールドであるupdate_attributesは検証に失敗し、自動的に失敗します。しかし、Accountオブジェクト（保持されていません）が返されています。これにより、Accountが存在していてもデータベースには存在しない他のメソッドに表示される可能性があります。