ユーザーの更新で、なぜか@userがinvalidになる

前提・実現したいこと

Railsでwebアプリを作っています。

detail_user_pathで、Userモデルにおけるユーザーの詳細情報に関わるカラムをnil => （内容）に更新する機能を作りたいのですが、ソースコードで実行してもなぜか@userがinvalidになってしまいます。(password cant be blankのエラーメッセージがコンソールに出ました)
update_attributeも使っていますし、user_update_paramsも用意したのですが、何がダメなのか全くわからないです。。。

私のコードの修正すべき点を教えていただきたいです。

程度の低い質問でしたら申し訳ございません。
また、質問に必要な情報等に不足があれば、お手数ですがご指摘いただければ、追記いたします。

よろしくお願いいたします。

該当のソースコード

ruby
1(コントローラ)
2class UsersController < ApplicationController
3  #before_action :logged_in_user, only: [:edit, :update, :destroy, :following, :followers]
4  before_action :correct_user, only: [:edit, :update, :destroy]
5  
6  def show
7    @user = User.find(params[:id])
8    #@microposts = @user.microposts.paginate(page: params[:page])
9  end
10  
11  def new
12    @user = User.new
13  end
14  
15  def signup_jp
16    @user = User.new
17  end
18  
19  def after_signup
20    
21  end
22  
23  def create
24    @user = User.new(user_params)
25    if @user.save
26      @user.send_activation_email
27      log_in @user
28      flash[:info] = "Please check your email to activate your account."
29      # redirect_to after_signup_path
30      #redirect_to new_detail_path
31      # TODO: ここでユーザー認証を促す画面にリダイレクトさせるようにあとで設定する
32      # redirect_to root_url
33      redirect_to root_path
34    else
35      render 'new'
36    end
37  end
38
39  def detail
40    @user = User.find(params[:id])
41  end
42
43  def detailcreate
44    @user = User.find_by(id: params[:id])
45    #binding.pry
46    if @user.update_attribute(user_update_params)
47      redirect_to @user
48    else
49      flash[:danger] = "Invalid information is included."
50      render 'detail'
51    end
52  end
53  
54
55  
56  def edit
57    @user = User.find(params[:id])
58    @detail = Detail.find_by(user_id: @user.id )
59  end
60  
61  def update
62    @user = User.find_by(id: params[:id])
63    #binding.pry
64    if @user.update_attribute(user_update_params)
65      redirect_to @user
66    else
67      flash[:danger] = "Invalid information is included."
68      render 'edit'
69    end
70  end
71    
72  
73  # def edit_email edit_emailcontrollerに移行した
74  #   @user = User.find(params[:id])
75  # end
76
77  
78  def edit_password
79    @user = User.find(params[:id])
80  end
81  
82
83 
84  
85  private
86  
87    def user_params #strong parameterのネスト化実装
88      params.require(:user).permit(
89        :name, 
90        :email, 
91        :image, 
92        :password, 
93        :password_confirmation,
94        :mother_tongue,
95        :japanese_level,
96        :english_level,
97        :gender,
98        :region,
99        :purpose,
100        :self_introduction,
101        :skype,
102        :discord,
103        :other#,
104        # :authenticity_token
105          )
106    end
107    # .merge(user_id: User.find_by(id: params[:id]).id) #これはつけた方がいいですか？
108    
109    def user_update_params 
110      params.permit(
111        :mother_tongue,
112        :japanese_level,
113        :english_level,
114        :gender,
115        :region,
116        :purpose,
117        :self_introduction,
118        :skype,
119        :discord,
120        :other
121          )
122    end
123    
124    
125    
126    def correct_user
127      @user = User.find(params[:id])
128      redirect_to(root_url) unless current_user?(@user)
129    end
130    
131end

html
1<% provide(:title, "user detail") %>
2
3<div class="user-detail-wrapper">
4  <div class="introduction">
5    <h3>①Authorize your account via sent Email.</h3>
6    <h3>②Let's register your user informations! You can change it later.</h3>
7  </div>
8
9  <div class="row user-detail-forms">
10    <div class="col-md-6 col-md-offset-3">
11      <%= form_with(url: detailcreate_user_path, method: "patch", local: true) do |f| %>
12        
13      
14        <%= f.label :mother_tongue, "Mother Tongue" %>
15        <%= f.select :mother_tongue, [["English", "English"], ["Japanese", "Japanese"], 
16        ["Other","other"]], include_blank: "Please select.", class:"form-control" %>
17        
18        <%= f.label :japanese_level, "Japanese Level" %>
19        <%= f.select :japanese_level, [["Beginner", "Beginner"], ["Capable of quite basic communication", "Capable of quite basic communication"], 
20        ["Capable of daily conversation | 日常会話ができる","Capable of daily conversation | 日常会話ができる"], ["Capable of advanced conversation | 難しい内容の会話ができる","Capable of advanced conversation | 難しい内容の会話ができる"], ["Almost native level | ネイティブとほとんど同レベル","Almost native level | ネイティブとほとんど同レベル"],
21        ["Native | ネイティブ","Native | ネイティブ"]], include_blank: "Please select.", class:"form-control" %>
22        
23        <%= f.label :english_level, "English Level | 英語のレベル" %>
24        <%= f.select :english_level, [["Beginner | 初心者", "Beginner | 初心者"], ["Capable of quite basic communication | 簡単な会話ならできる", "Capable of quite basic communication | 簡単な会話ならできる"], 
25        ["Capable of daily conversation | 日常会話ができる","Capable of daily conversation | 日常会話ができる"], ["Capable of advanced conversation | 難しい内容の会話ができる","Capable of advanced conversation | 難しい内容の会話ができる"], ["Almost native level | ネイティブとほとんど同レベル","Almost native level | ネイティブとほとんど同レベル"],
26        ["Native | ネイティブ","Native | ネイティブ"]], include_blank: "Please select.", class:"form-control" %>
27        
28        
29        
30        <%= f.label :self_introduction, "Self Introduction | 自己紹介" %>
31        <%= f.text_area :self_introduction, class: 'form-control self-intro', placeholder: "It is recommended that you write in simple English. 英語で書くことをお勧めします。簡単な文でも問題ありません。" %>
32        
33        <%= f.label :skype, "URL of Your SNS 1 (optional) | SNSリンク1（任意）" %>
34        <%= f.text_field :skype, class: 'form-control' %>
35        
36        <%= f.label :discord, "URL of Your SNS 2 (optional) | SNSリンク2（任意）" %>
37        <%= f.text_field :discord, class: 'form-control' %>
38        
39        <%= f.label :other, "URL of Your SNS 3 (optional) | SNSリンク3（任意）" %>
40        <%= f.text_field :other, class: 'form-control' %>
41
42        <%= f.text_field :name, type: "hidden", value: "#{@user.name}" %>
43        <%= f.text_field :email, type: "hidden", value: "#{@user.email}" %>
44        
45
46
47        
48        <%= f.submit "Send | 送信", class: "btn btn-primary create" %>
49      <% end %>
50    </div>
51  </div>
52</div>

ruby
1(user.rb)
2class User < ApplicationRecord
3
4  attr_accessor :remember_token, :activation_token, :reset_token
5  before_save   :downcase_email
6  before_create :create_activation_digest
7  validates :name, presence: true, length: { maximum: 25 }
8  VALID_EMAIL_REGEX = /\A[\w+\-.]+@[a-z\d\-.]+.[a-z]+\z/i
9  validates :email, presence: true, length: { maximum: 255 }, 
10                    format: { with: VALID_EMAIL_REGEX }, uniqueness: true
11  has_secure_password
12  validates :password, presence: true, length: { minimum: 6 } 
13  mount_uploader :image, ImageUploader
14
15  # 渡された文字列のハッシュ値を返す
16  def User.digest(string)
17    cost = ActiveModel::SecurePassword.min_cost ? BCrypt::Engine::MIN_COST :
18                                                  BCrypt::Engine.cost
19    BCrypt::Password.create(string, cost: cost)
20  end
21
22  def User.new_token
23    SecureRandom.urlsafe_base64
24  end
25
26  # 永続セッションのためにユーザーをデータベースに記憶する
27  def remember
28    self.remember_token = User.new_token
29    update_attribute(:remember_digest, User.digest(remember_token))
30  end
31
32  # 渡されたトークンがダイジェストと一致したらtrueを返す
33  def authenticated?(attribute, token)
34    digest = send("#{attribute}_digest")
35    return false if digest.nil?
36    BCrypt::Password.new(digest).is_password?(token)
37  end
38
39  def forget
40    update_attribute(:remember_digest, nil)
41  end
42
43  # アカウントを有効にする
44  def activate
45    update_attribute(:activated,    true)
46    update_attribute(:activated_at, Time.zone.now)
47  end
48
49  # 有効化用のメールを送信する
50  def send_activation_email
51    UserMailer.account_activation(self).deliver_now
52  end
53
54  # パスワード再設定の属性を設定する
55  def create_reset_digest
56    self.reset_token = User.new_token
57    update_attribute(:reset_digest,  User.digest(reset_token))
58    update_attribute(:reset_sent_at, Time.zone.now)
59  end
60
61  # パスワード再設定のメールを送信する
62  def send_password_reset_email
63    UserMailer.password_reset(self).deliver_now
64  end
65
66  def password_reset_expired?
67    reset_sent_at < 2.hours.ago
68  end
69
70  private
71
72    def downcase_email
73      self.email = email.downcase
74    end
75    
76    def create_activation_digest
77      self.activation_token  = User.new_token
78      self.activation_digest = User.digest(activation_token)
79    end
80  
81
82end
83

ruby
1(routes.rb)
2Rails.application.routes.draw do
3  get 'password_resets/new'
4  get 'password_resets/edit'
5  get 'sessions/new'
6  root 'static_pages#index'
7  resources :static_pages, only: [:index]
8  resources :users do
9    member do
10      get 'detail'
11      patch 'detailcreate'
12    end
13  end
14  resources :sessions, only: [:index, :create, :destroy]
15  resources :account_activations, only: [:edit]
16  resources :password_resets,     only: [:new, :create, :edit, :update]
17end
18