[RUBY] Rails Action Text implementation


Leave it as a memo for yourself.



1. Create an app

Create an app using MySQL.

$ rails new actionText -d mysql

Go to the created app

2.scaffold Create an app template with scaffold.

$ rails g scaffold article title:string

3. DB creation

$ rails db:create


$ rails db:migrate

5. Action Text installation

$ rails action_text:install


$ rails db:migrate

7. Association

Since Action Text data is stored in a dedicated table, it needs to be associated with the article model.


class Article < ApplicationRecord
  has_rich_text :content

8. Add content to view


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


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

  <%= @article.title %>
  <%= @article.content %>

<%= link_to 'Edit', edit_article_path(@article) %> |
<%= link_to 'Back', articles_path %>

9. Add content to the controller

Add content to the method that reads the params parameter.


    def article_params
      params.require(:article).permit(:title, :content)

10.image_processing No image is displayed without image_processing.

gem 'image_processing'
$ bundle install


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