在rails生成器中检索生成器名称(Retrieving generator name in a rails generator)

 我正在尝试设置一个rails生成器，我的第一个，在过去的两个小时里，我一直坚持一些非常简单的东西 - 如何让用户输入生成器的名称。 这是在应用程序而不是宝石。 
 
 所以在下面的例子中 - 我如何让'Foo'在生成器代码上打印？ 
 
rails g block Foo

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

  puts #Foo (file name)#
end
 
 我尝试过使用NamedBase和base生成器以及我能找到的每种方法。 
 
 任何帮助将不胜感激！ 
 ＃编辑 
$ rails g block Foo

class BlockGenerator < Rails::Generators::NamedBase
  source_root File.expand_path('../templates', __FILE__)
  argument :generator_name, type: :string

  puts #Foo (file name)#
end

#result

block
No value provided for required arguments 'generator_name'


$ rails generate block :generator_name => testing

 #result

 is empty, nothing is printed to the console. 

I'm trying to set up a rails generator, my first one, and for the past two hours I've been stuck on something really simple - How do I get the users inputed name for the generator. This is in an app and not a gem. 
 
So in the case below - How would I get 'Foo' to print on the generator code?
 
rails g block Foo

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

  puts #Foo (file name)#
end
 
I've tried with both NamedBase and base generators and every method I can find. 
 
Any help would be greatly appreciated!
 # EDIT 
$ rails g block Foo

class BlockGenerator < Rails::Generators::NamedBase
  source_root File.expand_path('../templates', __FILE__)
  argument :generator_name, type: :string

  puts #Foo (file name)#
end

#result

block
No value provided for required arguments 'generator_name'


$ rails generate block :generator_name => testing

 #result

 is empty, nothing is printed to the console. 

原文：https://stackoverflow.com/questions/40941833