Rails Template:

Rails Template: FriendlyID

# rails app:template LOCATION='https://gist.github.com/davidtolsma/b59c85845a76b47d0cb94dc88f340d28'

def ask_with_default(prompt, default)
  value = ask("#{prompt} (default: #{default})")
  value.present? ? value : default
end

run "bundle add 'friendly_id'"

rails_command "generate friendly_id"

while yes?("Do you want to use Friendly ID with an existing model?") do
  model_name = ask_with_default("Model Name:", "Post")
  attribute = ask_with_default("Attribute:", "name")
  if model_name && attribute
    # We generate a migration to add the friendly id slug column.
    generate(:migration, "AddSlugTo#{model_name.titleize.pluralize}", "slug:uniq")
    string = <<~RUBY
          extend FriendlyId
          friendly_id :#{attribute}, use: :slugged
    RUBY
    # Inject the friendly id methods into the class.
    inject_into_file "app/models/#{model_name.downcase}.rb", string, after: "class #{model_name.titleize} < ApplicationRecord\n"
  end
end

# Run migrations for newly generated migrations
rails_command "db:migrate"