Rails Active Admin

ActiveAdmin is a popular administration framework for Ruby on Rails applications. It allows developers to quickly and easily build beautiful and powerful admin interfaces with minimal code.

Here’s a quick overview:

---

✅ Key Features:

• Auto-generates admin interfaces for Rails models.

• Customizable dashboards.

• Filters, search, and CSV export.

• Authentication & authorization support.

• Batch actions (e.g., bulk delete).

• Supports form customizations and associations.

• Built-in theming (based on ActiveAdmin styles).

---

✅ Installation Guide:

1. Add to Gemfile:

rubyCopyEditgem 'activeadmin'

2. Bundle Install:

bashCopyEditbundle install

3. Install ActiveAdmin:

bashCopyEditrails generate active_admin:install

This creates:

• AdminUser model for authentication.

• ActiveAdmin configuration files.

• Routes for /admin.

4. Run Migrations:

bashCopyEditrails db:migrate

5. Start Rails Server:

bashCopyEditrails server

6. Access Admin Panel:
   Visit: http://localhost:3000/admin
   Log in with the credentials created during install.

---

✅ Register a Model in ActiveAdmin:

bashCopyEditrails generate active_admin:resource Post

This generates:

rubyCopyEdit# app/admin/posts.rb
ActiveAdmin.register Post do
end

---

✅ Example Customization:

rubyCopyEditActiveAdmin.register Post do
  permit_params :title, :body, :published

  index do
    selectable_column
    id_column
    column :title
    column :published
    actions
  end

  filter :title
  filter :published

  form do |f|
    f.inputs do
      f.input :title
      f.input :body
      f.input :published
    end
    f.actions
  end
end