find /usr/local/bundle/ | grep scaf

mkdir -p lib/templates/erb/scaffold/
cp /usr/local/bundle/gems/railties-6.0.2.1/lib/rails/generators/erb/scaffold/templates/* lib/templates/erb/scaffold/

<h1><%%= t('usual.edit') %> <%%= <%= class_name %>.model_name.human %></h1>

<%%= render 'form', <%= singular_table_name %>: @<%= singular_table_name %> %>

<%%= link_to t('usual.show'), @<%= singular_table_name %> %> |
<%%= link_to t('usual.back'), <%= index_helper %>_path %>

<p id="notice"><%%= notice %></p>

<h1><%%= <%= class_name %>.model_name.human %></h1>

<table>
  <thead>
    <tr>
<% attributes.reject(&:password_digest?).each do |attribute| -%>
  <th><%%= <%= class_name %>.human_attribute_name( :<%= attribute.name %> ) %></th>
<% end -%>
      <th colspan="3"></th>
    </tr>
  </thead>

  <tbody>
    <%% @<%= plural_table_name %>.each do |<%= singular_table_name %>| %>
      <tr>
<% attributes.reject(&:password_digest?).each do |attribute| -%>
	<td><%%= <%= singular_table_name %>.<%= attribute.column_name %> %></td>
<% end -%>
	<td><%%= link_to t('usual.show'), <%= model_resource_name %> %></td>
	<td><%%= link_to t('usual.edit'), edit_<%= singular_route_name %>_path(<%= singular_table_name %>) %></td>
	<td><%%= link_to t('usual.delete'), <%= model_resource_name %>, method: :delete, data: { confirm: t('usual.confirm.delete') } %></td>
      </tr>
    <%% end %>
  </tbody>
</table>

<br>

<%%= link_to "#{t('usual.new')} <%= singular_table_name.titleize %>", new_<%= singular_route_name %>_path %>

<h1><%%= t('usual.new') %><%%= <%= class_name %>.model_name.human %></h1>

<%%= render 'form', <%= singular_table_name %>: @<%= singular_table_name %> %>

<%%= link_to t('usual.back'), <%= index_helper %>_path %>

<p id="notice"><%%= notice %></p>

<% attributes.reject(&:password_digest?).each do |attribute| -%>
<p>
  <strong>
    <%%= label :<%= singular_table_name %>, :<%= attribute.name %> %>:
  </strong>
<% if attribute.attachment? -%>
  <%%= link_to @<%= singular_table_name %>.<%= attribute.column_name %>.filename, @<%= singular_table_name %>.<%= attribute.column_name %> if @<%= singular_table_name %>.<%= attribute.column_name %>.attached? %>
<% elsif attribute.attachments? -%>
  <%% @<%= singular_table_name %>.<%= attribute.column_name %>.each do |<%= attribute.singular_name %>| %>
    <div><%%= link_to <%= attribute.singular_name %>.filename, <%= attribute.singular_name %> %></div>
  <%% end %>
<% else -%>
  <%%= @<%= singular_table_name %>.<%= attribute.column_name %> %>
<% end -%>
</p>

<% end -%>
<%%= link_to t('usual.edit'), edit_<%= singular_table_name %>_path(@<%= singular_table_name %>) %> |
<%%= link_to t('usual.back'), <%= index_helper %>_path %>

cd test000

gem 'mini_magick'
gem 'image_processing'

bundle install 

rails action_text:install
rails db:migrate

rails g scaffold t0 name:string

... 省略
  <%= image_tag blob.representation(resize: local_assigns[:in_gallery] ? "800x600" : "1024x768" ) %>
... 省略

class T0 < ApplicationRecord
  has_rich_text :content
end

... 省略
    # Only allow a list of trusted parameters through.
    def t0_params
      params.require(:t0).permit(:name,:content)
    end
end

<%= form_with(model: t0, local: true) do |form| %>
  <% if t0.errors.any? %>
    <div id="error_explanation">
      <h2><%= pluralize(t0.errors.count, "error") %> prohibited this t0 from being saved:</h2>

      <ul>
        <% t0.errors.full_messages.each do |message| %>
          <li><%= message %></li>
        <% end %>
      </ul>
    </div>
  <% end %>

  <div class="field">
    <%= form.label :name %>
    <%= form.text_field :name %>
  </div>

  <div class="field">
    <%= form.label :content %>
    <%= form.rich_text_area :content %>
  </div>

  <div class="actions">
    <%= form.submit %>
  </div>
<% end %>

<p id="notice"><%= notice %></p>

<p>
  <strong>Name:</strong>
  <%= @t0.name %>
</p>
<p>
  <strong>Content:</strong>
  <%= @t0.content %>
</p>

<%= link_to 'Edit', edit_t0_path(@t0) %> |
<%= link_to 'Back', t0s_path %>

rails db:migrate

rails server -b 0.0.0.0

cd test000

gem 'image_processing'

bundle install 

rails g scaffold t0 name:string

class T0 < ApplicationRecord
  has_rich_text :content
end

... 省略
    # Only allow a list of trusted parameters through.
    def t0_params
      params.require(:t0).permit(:name,:content)
    end
end

<%= form_with(model: t0, local: true) do |form| %>
  <% if t0.errors.any? %>
    <div id="error_explanation">
      <h2><%= pluralize(t0.errors.count, "error") %> prohibited this t0 from being saved:</h2>

      <ul>
        <% t0.errors.full_messages.each do |message| %>
          <li><%= message %></li>
        <% end %>
      </ul>
    </div>
  <% end %>

  <div class="field">
    <%= form.label :name %>
    <%= form.text_field :name %>
  </div>

  <div class="field">
    <%= form.label :content %>
    <%= form.rich_text_area :content %>
  </div>

  <div class="actions">
    <%= form.submit %>
  </div>
<% end %>

<p id="notice"><%= notice %></p>

<p>
  <strong>Name:</strong>
  <%= @t0.name %>
</p>
<p>
  <strong>Content:</strong>
  <%= @t0.content %>
</p>

<%= link_to 'Edit', edit_t0_path(@t0) %> |
<%= link_to 'Back', t0s_path %>

rails db:migrate

rails server -b 0.0.0.0

cd test000

gem 'image_processing'
gem 'rails_admin'
gem 'rails-i18n', '~> 6.0.0' # For 6.0.0 or higher
gem 'i18n_generators'

bundle install 

rails g scaffold dialy::post date:datetime title:string

class Dialy::Post < ApplicationRecord
  has_rich_text :content
end

... 省略
    # Only allow a list of trusted parameters through.
    def dialy_post_params
      params.require(:dialy_post).permit(:date, :title, :content)
    end
end

... 省略
  <div class="field">
    <%= form.label :title %>
    <%= form.text_field :title %>
  </div>

  <div class="field">
    <%= form.label :content %>
    <%= form.rich_text_area :content %>
  </div>

  <div class="actions">
    <%= form.submit %>
  </div>
<% end %>

<p id="notice"><%= notice %></p>

<p>
  <strong>Date:</strong>
  <%= @dialy_post.date %>
</p>

<p>
  <strong>Title:</strong>
  <%= @dialy_post.title %>
</p>

<p>
  <strong>Content:</strong>
  <%= @dialy_post.content %>
</p>

<%= link_to 'Edit', edit_dialy_post_path(@dialy_post) %> |
<%= link_to 'Back', dialy_posts_path %>

wget https://gist.githubusercontent.com/mshibuya/1662352/raw/3f001f00f440af613d7d307cbf2f07c3babe2068/rails_admin.ja.yml
#wget https://raw.githubusercontent.com/svenfuchs/rails-i18n/master/rails/locale/ja.yml
mv -i *ja.yml config/locales/

...省略
    config.time_zone = 'Tokyo'
    config.active_record.default_timezone = :local
    config.i18n.default_locale = :ja
    config.i18n.load_path += Dir[Rails.root.join('config', 'locales', '**', '*.{rb,yml}').to_s]
  end
end

rails g rails_admin:install

rails db:migrate
rails g i18n ja
# rails g i18n_locale ja
# rails g i18n_translation ja

cd test000

bundle install 

rails g scaffold Dialy::Post date:datetime title:string

Running via Spring preloader in process 1124
      invoke  active_record
The name 'Dialy::Post' is either already used in your application or reserved by Ruby on Rails. Please choose an alternative and run this generator again.

rails destroy scaffold dialy::post

rails g scaffold dialy::post date:datetime title:string

cd test000

gem 'image_processing'
gem 'rails_admin'
gem 'rails-i18n', '~> 6.0.0' # For 6.0.0 or higher
gem 'i18n_generators'
gem 'devise'

bundle install 

rails g scaffold dialy::post date:datetime title:string

class Dialy::Post < ApplicationRecord
  has_rich_text :content
end

... 省略
    # Only allow a list of trusted parameters through.
    def dialy_post_params
      params.require(:dialy_post).permit(:date, :title, :content)
    end
end

... 省略
  <div class="field">
    <%= form.label :title %>
    <%= form.text_field :title %>
  </div>

  <div class="field">
    <%= form.label :content %>
    <%= form.rich_text_area :content %>
  </div>

  <div class="actions">
    <%= form.submit %>
  </div>
<% end %>

<p id="notice"><%= notice %></p>

<p>
  <strong>Date:</strong>
  <%= @dialy_post.date %>
</p>

<p>
  <strong>Title:</strong>
  <%= @dialy_post.title %>
</p>

<p>
  <strong>Content:</strong>
  <%= @dialy_post.content %>
</p>

<%= link_to 'Edit', edit_dialy_post_path(@dialy_post) %> |
<%= link_to 'Back', dialy_posts_path %>

wget https://gist.githubusercontent.com/mshibuya/1662352/raw/3f001f00f440af613d7d307cbf2f07c3babe2068/rails_admin.ja.yml
#wget https://raw.githubusercontent.com/svenfuchs/rails-i18n/master/rails/locale/ja.yml
mv -i *ja.yml config/locales/

...省略
    config.time_zone = 'Tokyo'
    config.active_record.default_timezone = :local
    config.i18n.default_locale = :ja
    config.i18n.load_path += Dir[Rails.root.join('config', 'locales', '**', '*.{rb,yml}').to_s]
  end
end

rails db:migrate
rails g i18n ja
# rails g i18n_locale ja
# rails g i18n_translation ja

mkdir -p C/Youtube/000
cd C/Youtube/000
cp -r ~/test000 test000-2-adminstrate
cd test000-2-adminstrate
bundle install

git config --global user.name "NM Max"
git config --global user.email xxx@xxx.xx

git init
git commit --allow-empty -m "first commit"

git add -A
git commit -m "プロジェクト生成直後"

rails g scaffold MyPost title:string
rails db:migrate

git add -A
git commit -m "MyPost生成直後"

class MyPost < ApplicationRecord
  has_rich_text :content
end

... 省略
    # Only allow a list of trusted parameters through.
    def my_post_params
      params.require(:my_post).permit(:title, :content)
    end
end

<p id="notice"><%= notice %></p>

<p>
  <strong>Title:</strong>
  <%= @my_post.title %>
</p>

<p>
  <strong>Content:</strong>
  <%= @my_post.content %>
</p>

<%= link_to 'Edit', edit_my_post_path(@my_post) %> |
<%= link_to 'Back', my_posts_path %>

<%= form_with(model: my_post, local: true) do |form| %>
  <% if my_post.errors.any? %>
    <div id="error_explanation">
      <h2><%= pluralize(my_post.errors.count, "error") %> prohibited this my_post from being saved:</h2>

      <ul>
	<% my_post.errors.full_messages.each do |message| %>
	  <li><%= message %></li>
	<% end %>
      </ul>
    </div>
  <% end %>

  <div class="field">
    <%= form.label :title %>
    <%= form.text_field :title %>
  </div>

  <div class="field">
    <%= form.label :content %>
    <%= form.rich_text_area :content %>
  </div>

  <div class="actions">
    <%= form.submit %>
  </div>
<% end %>

gem 'image_processing'

bundle install

git add -A
git commit -m "MyPost設定"

<div class="field-unit__label">
  <%= f.label field.attribute %>
</div>
<div class="field-unit__field">
  <%= f.rich_text_area(field.attribute) %>
</div>

//= link administrate/application.css
//= link administrate/application.js
//= link administrate-field-trix/application.css

require "administrate/base_dashboard"

class MyPostDashboard < Administrate::BaseDashboard
  # ATTRIBUTE_TYPES
  # a hash that describes the type of each of the model's fields.
  #
  # Each different type represents an Administrate::Field object,
  # which determines how the attribute is displayed
  # on pages throughout the dashboard.
  #  rich_text_content: Field::HasOne,
  #  content: RichTextAreaField,
  #  content: Field::Trix,
  #  content: Field::ActiveStorage,
  ATTRIBUTE_TYPES = {
    id: Field::Number,
    title: Field::String,
    content: RichTextAreaField,
    #content:  Field::String,
    created_at: Field::DateTime,
    updated_at: Field::DateTime,
  }.freeze

  # COLLECTION_ATTRIBUTES
  # an array of attributes that will be displayed on the model's index page.
  #
  # By default, it's limited to four items to reduce clutter on index pages.
  # Feel free to add, remove, or rearrange items.
  # rich_text_content
  COLLECTION_ATTRIBUTES = %i[
  id
  title
  content
  created_at
  ].freeze

  # SHOW_PAGE_ATTRIBUTES
  # an array of attributes that will be displayed on the model's show page.
  # rich_text_content
  SHOW_PAGE_ATTRIBUTES = %i[
  id
  title
  content
  created_at
  updated_at
  ].freeze

  # FORM_ATTRIBUTES
  # an array of attributes that will be displayed
  # on the model's form (`new` and `edit`) pages.
  # rich_text_content
  FORM_ATTRIBUTES = %i[
  title
  content 
  ].freeze

  # COLLECTION_FILTERS
  # a hash that defines filters that can be used while searching via the search
  # field of the dashboard.
  #
  # For example to add an option to search for open resources by typing "open:"
  # in the search field:
  #
  #   COLLECTION_FILTERS = {
  #     open: ->(resources) { where(open: true) }
  #   }.freeze
  COLLECTION_FILTERS = {}.freeze

  # Overwrite this method to customize how my posts are displayed
  # across all pages of the admin dashboard.
  #
  # def display_resource(my_post)
  #   "MyPost ##{my_post.id}"
  # end
end

git add -A
git commit -m "MyPost用Administrate設定修正"

...省略
    config.time_zone = 'Tokyo'
    config.active_record.default_timezone = :local
    config.i18n.default_locale = :ja
    config.i18n.load_path += Dir[Rails.root.join('config', 'locales', '**', '*.{rb,yml}').to_s]
  end
end

... 省略
//= link administrate/application.css
//= link administrate/application.js