エラー

あるアプリを作成しているのですがrefileとminimagickを使ってユーザーのプロフィール画像を設定できるようにしたかったのですが、画像投稿フォームであるf.attachment_field を記述した際に以下のようなエラーが出てしまいました。
NoMethodError in Users#edit

ファイル

gemfile

ruby
1source 'https://rubygems.org'
2git_source(:github) { |repo| "https://github.com/#{repo}.git" }
3
4ruby '2.6.3'
5
6# Bundle edge Rails instead: gem 'rails', github: 'rails/rails'
7gem 'rails', '~> 5.2.4', '>= 5.2.4.4'
8# Use sqlite3 as the database for Active Record
9gem 'sqlite3'
10# Use Puma as the app server
11gem 'puma', '~> 3.11'
12# Use SCSS for stylesheets
13gem 'sass-rails', '~> 5.0'
14# Use Uglifier as compressor for JavaScript assets
15gem 'uglifier', '>= 1.3.0'
16# See https://github.com/rails/execjs#readme for more supported runtimes
17# gem 'mini_racer', platforms: :ruby
18
19# Use CoffeeScript for .coffee assets and views
20gem 'coffee-rails', '~> 4.2'
21# Turbolinks makes navigating your web application faster. Read more: https://github.com/turbolinks/turbolinks
22gem 'turbolinks', '~> 5'
23# Build JSON APIs with ease. Read more: https://github.com/rails/jbuilder
24gem 'jbuilder', '~> 2.5'
25# Use Redis adapter to run Action Cable in production
26# gem 'redis', '~> 4.0'
27# Use ActiveModel has_secure_password
28# gem 'bcrypt', '~> 3.1.7'
29
30# Use ActiveStorage variant
31# gem 'mini_magick', '~> 4.8'
32
33# Use Capistrano for deployment
34# gem 'capistrano-rails', group: :development
35
36# Reduces boot times through caching; required in config/boot.rb
37gem 'bootsnap', '>= 1.1.0', require: false
38
39group :development, :test do
40  # Call 'byebug' anywhere in the code to stop execution and get a debugger console
41  gem 'byebug', platforms: [:mri, :mingw, :x64_mingw]
42end
43
44group :development do
45  # Access an interactive console on exception pages or by calling 'console' anywhere in the code.
46  gem 'web-console', '>= 3.3.0'
47  gem 'listen', '>= 3.0.5', '< 3.2'
48  # Spring speeds up development by keeping your application running in the background. Read more: https://github.com/rails/spring
49  gem 'spring'
50  gem 'spring-watcher-listen', '~> 2.0.0'
51end
52
53group :test do
54  # Adds support for Capybara system testing and selenium driver
55  gem 'capybara', '>= 2.15'
56  gem 'selenium-webdriver'
57  # Easy installation and use of chromedriver to run system tests with Chrome
58  gem 'chromedriver-helper'
59end
60
61# Windows does not include zoneinfo files, so bundle the tzinfo-data gem
62gem 'tzinfo-data', platforms: [:mingw, :mswin, :x64_mingw, :jruby]
63gem "refile", require: "refile/rails", github: 'manfe/refile'
64gem "refile-mini_magick"
65gem 'devise'
66gem 'font-awesome-rails'
67gem 'bootstrap', '~> 4.1.1'
68gem 'jquery-rails'

devise　マイグレーションファイル

ruby
1# frozen_string_literal: true
2
3class DeviseCreateUsers < ActiveRecord::Migration[5.2]
4  def change
5    create_table :users do |t|
6      ## Database authenticatable
7      t.string :email,              null: false, default: ""
8      t.string :encrypted_password, null: false, default: ""
9
10      ## Recoverable
11      t.string   :reset_password_token
12      t.datetime :reset_password_sent_at
13
14      ## Rememberable
15      t.datetime :remember_created_at
16
17      ## Trackable
18      # t.integer  :sign_in_count, default: 0, null: false
19      # t.datetime :current_sign_in_at
20      # t.datetime :last_sign_in_at
21      # t.string   :current_sign_in_ip
22      # t.string   :last_sign_in_ip
23
24      ## Confirmable
25      # t.string   :confirmation_token
26      # t.datetime :confirmed_at
27      # t.datetime :confirmation_sent_at
28      # t.string   :unconfirmed_email # Only if using reconfirmable
29
30      ## Lockable
31      # t.integer  :failed_attempts, default: 0, null: false # Only if lock strategy is :failed_attempts
32      # t.string   :unlock_token # Only if unlock strategy is :email or :both
33      # t.datetime :locked_at
34
35      t.string :name
36      t.string :introduction
37      t.string :profile_image_id
38
39      t.timestamps null: false
40    end
41
42    add_index :users, :email,                unique: true
43    add_index :users, :reset_password_token, unique: true
44    # add_index :users, :confirmation_token,   unique: true
45    # add_index :users, :unlock_token,         unique: true
46  end
47end
48

user.rb

ruby
1class User < ApplicationRecord
2  # Include default devise modules. Others available are:
3  # :confirmable, :lockable, :timeoutable, :trackable and :omniauthable
4  devise :database_authenticatable, :registerable,
5         :recoverable, :rememberable, :validatable
6  has_many :books, dependent: :destroy
7  attachment :profile_image
8end

application_controller

ruby
1class ApplicationController < ActionController::Base
2  protect_from_forgery with: :exception
3
4  before_action :configure_permitted_parameters, if: :devise_controller?
5  before_action :authenticate_user!
6
7  protected
8
9  def configure_permitted_parameters
10    added_attrs = [:user_name, :email, :password, :password_confirmation, :remember_me]
11    devise_parameter_sanitizer.permit :sign_up, keys: added_attrs
12    devise_parameter_sanitizer.permit :account_update, keys: added_attrs
13  end
14end

users_controller

ruby
1class UsersController < ApplicationController
2  def new
3    @user = User.new
4  end
5  def create
6    @user = User.new(user_params)
7    @user.save
8  end
9  def index
10    @users = User.all
11    @book = Book.new
12  end
13
14  def show
15    @user = User.find(params[:id])
16  end
17  private
18  def edit
19    @user = User.find(current_user.id)
20    @user.update(user_params)
21    redirect_to user_path(current_user.id)
22  end
23  def user_params
24    params.require(:user).permit(:name, :introduction, :profile_image)
25  end
26end

views/users/edit.html

ruby
1  <section  class="mt-3">
2    <div>
3        <h2>Edit</h2>
4    </div>
5    <%= form_with model: @user, local:true do |f| %>
6      <div class="form-group">
7        <label for="name_input">Name</label>
8        <%= f.text_field :name ,class:"form-control", id:"name_input"%>
9      </div>
10      <div class="form-group">
11        <label for="img_input">Image</label>
12        <!-- 問題の場所-->
13        <%= f.attachment_field :profile_image, class:"form-control", id:"img_input"%>
14      </div>
15      <div class="form-group">
16        <label for="introduction_input">Introduction</label>
17        <%= f.text_area :introduction ,class:"form-control", id:"introduction_input"%>
18      </div>
19        <%= f.submit 'update',class:"btn btn-secondary w-100" %>
20    <% end %>
21  </section>

レイアウト

views/layout/application.html.erb

ruby
1<!DOCTYPE html>
2<html>
3  <head>
4    <title>Bookers2</title>
5    <%= csrf_meta_tags %>
6    <%= csp_meta_tag %>
7
8    <%= stylesheet_link_tag    'application', media: 'all', 'data-turbolinks-track': 'reload' %>
9    <%= javascript_include_tag 'application', 'data-turbolinks-track': 'reload' %>
10  </head>
11  <body class="container-fluid ">
12    <%= render partial: "shered/header" %>
13    <%= yield %>
14  </body>
15</html>

views/shared/_header.html.erb

ruby
1<header class="row bg-dark justify-content-between p-2">
2  <div class="text-white">
3      <h2>Bookers</h2>
4  </div>
5  <ul class="nav">
6  <% if user_signed_in? %>
7      <li class="nav-item">
8          <!-- Home -->
9          <%= link_to user_path(current_user.id) ,class: "nav-link text-white" do%>
10              <%= fa_icon "home" %> Home
11          <%end%>
12      </li>
13      <li class="nav-item">
14          <!-- Users -->
15          <%= link_to users_path ,class: "nav-link text-white" do%>
16              <%= fa_icon "users" %> Users
17          <%end%>
18      </li>
19      <li class="nav-item">
20          <!-- Books -->
21          <%= link_to books_path ,class: "nav-link text-white" do%>
22              <%= fa_icon "book" %> Books
23          <%end%>
24      </li>
25      <li class="nav-item">
26          <!-- Log out -->
27          <%= link_to  destroy_user_session_path, method: :delete ,class: "nav-link text-white" do%>
28              <%= fa_icon "sign-out" %> log out
29          <% end %>
30      </li>
31    </ul>
32  <% else%>
33      <li class="nav-item">
34          <!-- Home -->
35          <%= link_to  new_user_session_path ,class: "nav-link text-white" do%>
36              <%= fa_icon "home" %> Home
37          <%end%>
38      </li>
39      <li class="nav-item">
40          <!-- About -->
41          <%= link_to new_user_session_path ,class: "nav-link text-white" do%>
42              <%= fa_icon "link" %> About
43          <%end%>
44      </li>
45      <li class="nav-item">
46          <!-- Sign up -->
47          <%= link_to new_user_registration_path ,class: "nav-link text-white" do%>
48              <%= fa_icon "user-plus"%> sign up
49          <%end%>
50      </li>
51      <li class="nav-item">
52          <!-- Sign in -->
53          <%= link_to new_user_session_path ,class: "nav-link text-white" do%>
54              <%= fa_icon "sign-in" %> login
55          <%end%>
56      </li>
57    </ul>
58  <% end %>
59</header>