Question

在将Rails从SQLite迁移到SQL Server之前，我的设计工作正常。迁移全部成功并能够登录Rails。但是，当我单击“注销”时，我得到了错误提示，

> NoMethodError in Devise::SessionsController#destroy undefined method
> `remember_created_at=' for #<User:0x00007fe169c25d10> Did you mean?
> remember_me=

    Rails.root: /home/blacklight/projects/tth-blacklight
    Application Trace | Framework Trace | Full Trace

    activemodel (5.2.1) lib/active_model/attribute_methods.rb:430:in `method_missing'
    devise (4.5.0) lib/devise/models/rememberable.rb:61:in `forget_me!'
    devise (4.5.0) lib/devise/controllers/rememberable.rb:32:in `forget_me'
    devise (4.5.0) lib/devise/hooks/forgetable.rb:9:in `block in <main>'
    warden (1.2.7) lib/warden/hooks.rb:15:in `block in _run_callbacks'
    warden (1.2.7) lib/warden/hooks.rb:10:in `each'
    warden (1.2.7) lib/warden/hooks.rb:10:in `_run_callbacks'
    warden (1.2.7) lib/warden/manager.rb:52:in `_run_callbacks'
    warden (1.2.7) lib/warden/proxy.rb:263:in `block in logout'

db / migrate / 2018..add_devise_to users.rb

class AddDeviseToUsers < ActiveRecord::Migration[5.2]
  def self.up
    change_table :users do |t|
      t.string :email,              null: true
    end     
     add_index :users, :email,                unique: true
  end

  def self.down
        raise ActiveRecord::IrreversibleMigration
  end
end

db / Schema.rb

ActiveRecord::Schema.define(version: 2018_11_15_061838) do

  create_table "bookmarks", id: :integer, force: :cascade do |t|
    t.integer "user_id", null: false
    t.string "user_type"
    t.string "document_id"
    t.string "document_type"
    t.binary "title"
    t.datetime "created_at", null: false
    t.datetime "updated_at", null: false
    t.index ["document_id"], name: "index_bookmarks_on_document_id"
    t.index ["user_id"], name: "index_bookmarks_on_user_id"
  end

  create_table "searches", id: :integer, force: :cascade do |t|
    t.binary "query_params"
    t.integer "user_id"
    t.string "user_type"
    t.datetime "created_at", null: false
    t.datetime "updated_at", null: false
    t.index ["user_id"], name: "index_searches_on_user_id"
  end

  create_table "users", force: :cascade do |t|
    t.boolean "guest", default: false
    t.string "email"
    t.index ["email"], name: "index_users_on_email", unique: true
  end
end

不确定要看什么或在哪里看。我是Rails的新手，所以简单的说明会很有帮助。谢谢。

Answer 1

我不确定迁移是否确实引起了问题，但是我了解到model / user.rb中的：rememberable 选项负责创建时间并管理 remember_created_at 。并且在登录用户时我没有记住我复选框。因此，我总共删除了：rememberable选项。并且要确保用户在一段时间后登出：timeoutable 选项

Answer 2

您需要修改forget_me中的lib / devise / models / rememberable.rb函数。

删除或评论此行：

self.remember_created_at = nil if self.class.expire_all_remember_me_on_sign_out

并添加以下行：

self.remember_me = nil if self.class.expire_all_remember_me_on_sign_out

它应该像这样：

def forget_me!
  return unless persisted?
  self.remember_token = nil if respond_to?(:remember_token)
  self.remember_me = nil if self.class.expire_all_remember_me_on_sign_out
  #self.remember_created_at = nil if self.class.expire_all_remember_me_on_sign_out
  save(validate: false)
end

rails-devise-注销时未定义的方法“ remember_created_at”

2 个答案: