How to pass array to class option of rails generator?

Question

I'm creating the following ruby class generator:

class Template < Rails::Generators::Base
  source_root File.expand_path('../templates', __FILE__)

  argument :name, type: 'string', required: true
  ...
  class_option :templates, type: 'array', default: [1, 2, 3, 4], aliases: '-t'

  private
  ...

end

In the rails console I tried:

rails generate template test -t=1 2 
rails generate template test -t 1 2 
rails generate template test -t 1,2
rails generate template test -t=1,2  
rails generate template test -t=[1,2]
rails generate template test -t [1,2]

but the generator is not working correctly. It seems that the input doesn't return an array, because the following private method is not working:

def should_be_template_rendered(param)
  options.templates.include? param
end

Where param is simply a number. The result is that none of the templates are rendered at all. I have checked the Thor documentations here and here, but was not able to find an example on how the array is passed as argument.

Answer 1

The following work fine for me

rails generate template test -t=1 2 
rails generate template test -t 1 2 

Just notice that the result is a string array:

options["templates"]
#=> ["1", "2"]