Completed 500 Internal Server Error

Question

初学者です。

現在患者情報に基づくカルテを作成できるようなものを実装しています。

患者情報を登録するものを以前実装完了していたのですが、本日確認すると、

NoMethodError in PatientsController#new
undefined method `move_to_index' for #<PatientsController:0x00007fb160bb7470>

https://gyazo.com/0f81a1fc738c3ba76d58dd8377736c92
↑Gyazoです

とのエラーが発生していました。
原因が分からず、ターミナルを確認したところ

Completed 500 Internal Server Error

https://gyazo.com/d930e87993100579f7d1e63fa6202673
↑Gyazoです

となっていました。
調べてサーバー上の何らかのエラーからこのような状況になっているということはわかりましたが、手がかりがなく困っています。

このエラーの解決についてご教示いただければと思い、投稿しました。

###ソースコード

patients_controller.rb

class PatientsController < ApplicationController
  before_action :if_not_admin
  before_action :move_to_index, except: [:index, :show, :search]

  def new
    @patient = Patient.new
  end

  def create
    @patient = Patient.new(patient_params)
    if @patient.save
      redirect_to root_path
    else
      render :new
    end
  end

  def show
    @patient = Patient.find(params[:id])
  end

  def edit
    @patient = Patient.find(params[:id])
  end

  def update
    @patient = Patient.find(params[:id])
    if @patient.update(patient_params)
      redirect_to patient_path
    else
      render :edit
    end
  end

  def search
    @patients = Patient.search(params[:keyword])
  end


  private

  def patient_params
    params.require(:patient).permit(:family_name, :first_name, :family_name_kana, :first_name_kana, :birth_date_id, :phone_number)
  end

  def if_not_admin
    redirect_to root_path unless current_user && current_user.admin?
  end

end

patient.rb

class Patient < ApplicationRecord
  has_one :karute
  has_one :patient_address

  with_options presence: true do
    validates :family_name, format: { with: /\A[ぁ-んァ-ン一-龥]/ }
    validates :first_name, format: { with: /\A[ぁ-んァ-ン一-龥]/ }
    validates :family_name_kana, format: { with: /\A[ァ-ヶー－]+\z/ }
    validates :first_name_kana, format: { with: /\A[ァ-ヶー－]+\z/ }
    validates :birth_date_id
    validates :phone_number, format: { with: /\A\d{11}\z/ }
  end

  def self.search(search)
    if search != ""
      Patient.where('family_name LIKE ? OR first_name LIKE ? OR family_name_kana LIKE ? OR first_name_kana LIKE ? OR phone_number LIKE ? ' , "%#{search}%", "%#{search}%", "%#{search}%", "%#{search}%", "%#{search}%")
    else
      Patient.all
    end
  end
end

patients/new.html.erb

<h2>患者情報登録</h2>

<%= form_for(@patient, url: patients_path) do |f| %>
  <%= render 'shared/error_messages', model: f.object %> 

  <div class="field">
    <%= f.label :family_name %><br />
    <%= f.text_field :family_name %>
  </div>

  <div class="field">
    <%= f.label :first_name %><br />
    <%= f.text_field :first_name %>
  </div>

  <div class="field">
    <%= f.label :family_name_kana %><br />
    <%= f.text_field :family_name_kana %>
  </div>

  <div class="field">
    <%= f.label :first_name_kana %><br />
    <%= f.text_field :first_name_kana %>
  </div>

  <div class="field">
    <%= f.label :birth_date_id %><br />
 
    <div class='form-text-wrap'>
        <label class="form-text">生年月日</label>
        <span class="indispensable">必須</span>
      </div>
      <div class='input-birth-wrap'>
        <%= raw sprintf(
                    f.date_select(
                      :birth_date_id,
                      class:'select-birth',
                      id:"birth-date",
                      use_month_numbers: true,
                      prompt:'--',
                      start_year: 1930,
                      end_year: (Time.now.year - 5),
                      date_separator: '%s'),
                    "<p> 年 </p>", "<p> 月 </p>") + "<p> 日 </p>" %>
      </div>
    </div>

  <div class="field">
    <%= f.label :phone_number %><br />
    <%= f.text_field :phone_number %>
  </div>

  <div class="actions">
    <%= f.submit "登録" %>
  </div>
  <%= link_to '戻る', root_path, class: "root_btn" %>
<% end %>

karutes/index.html.erb

<%= render "header"%>

<div class="admin">

  <% if user_signed_in?%>
    <% if current_user.admin? %>
      <div class="tab">
        <h2>一覧は管理者のみ表示されます</h2>
        
        <%= link_to "ログアウト", destroy_user_session_path, method: :delete, class: "log_out_btn" %>
        <%= link_to '患者登録', new_patient_path, class: "admin_btn" %>

      </div>  

      <div class="karute_user">
        <h2>患者カルテ一覧</h2>
        <%= form_with(url: search_patients_path, local: true, method: :get, class: "search-form") do |form| %>
          <%= form.text_field :keyword, placeholder: "投稿を検索する", class: "search-input" %>
          <%= form.submit "検索", class: "search-btn" %>
        <% end %>
        <ul class='user_list'>
          <% @patients.each do |patient| %>
            <li class='list'>
                <%= link_to patient_path(patient.id), method: :get do %> 
                <%= patient.family_name %>
                <%= patient.first_name %>
                <% end %>
            </li>
          <% end %>
        </ul>
      </div> 
    <% else %> 
      <%= link_to "ログアウト", destroy_user_session_path, method: :delete, class: "log_out_btn" %>
 
    <% end %>
  <% end %>
</div>

routes.rb

Rails.application.routes.draw do
  devise_for :users, controllers: {
    registrations: 'users/registrations'
  }
  devise_scope :user do
    get 'addresses', to: 'users/registrations#new_address'
    post 'addresses', to: 'users/registrations#create_address'
  end

  root to: "karutes#index"
  resources :restaurants, only: [:show] 

  resources :patients, only: [:new, :create, :show, :edit, :update] do
    resources :patient_addresses, shallow: true
    resources :karutes, shallow: true
    collection do
      get 'search'
    end
  end

  resources :menus, only: [:index]
  resources :bulogs, only: [:index]
  resources :accesses, only: [:index]
end

rails routes

                                 root GET    /                                                                                        karutes#index
                           restaurant GET    /restaurants/:id(.:format)                                                               restaurants#show
            patient_patient_addresses GET    /patients/:patient_id/patient_addresses(.:format)                                        patient_addresses#index
                                      POST   /patients/:patient_id/patient_addresses(.:format)                                        patient_addresses#create
          new_patient_patient_address GET    /patients/:patient_id/patient_addresses/new(.:format)                                    patient_addresses#new
                 edit_patient_address GET    /patient_addresses/:id/edit(.:format)                                                    patient_addresses#edit
                      patient_address GET    /patient_addresses/:id(.:format)                                                         patient_addresses#show
                                      PATCH  /patient_addresses/:id(.:format)                                                         patient_addresses#update
                                      PUT    /patient_addresses/:id(.:format)                                                         patient_addresses#update
                                      DELETE /patient_addresses/:id(.:format)                                                         patient_addresses#destroy
                      patient_karutes GET    /patients/:patient_id/karutes(.:format)                                                  karutes#index
                                      POST   /patients/:patient_id/karutes(.:format)                                                  karutes#create
                   new_patient_karute GET    /patients/:patient_id/karutes/new(.:format)                                              karutes#new
                          edit_karute GET    /karutes/:id/edit(.:format)                                                              karutes#edit
                               karute GET    /karutes/:id(.:format)                                                                   karutes#show
                                      PATCH  /karutes/:id(.:format)                                                                   karutes#update
                                      PUT    /karutes/:id(.:format)                                                                   karutes#update
                                      DELETE /karutes/:id(.:format)                                                                   karutes#destroy
                      search_patients GET    /patients/search(.:format)                                                               patients#search
                             patients POST   /patients(.:format)                                                                      patients#create
                          new_patient GET    /patients/new(.:format)                                                                  patients#new
                         edit_patient GET    /patients/:id/edit(.:format)                                                             patients#edit
                              patient GET    /patients/:id(.:format)                                                                  patients#show
                                      PATCH  /patients/:id(.:format)                                                                  patients#update
                                      PUT    /patients/:id(.:format)                                                                  patients#update

Answer 1

before_actionで　move_to_indexを設定していましたが、privateでmove_to_indexを定義していなかったのが原因でした。