In this example, as i understand that *included* block is running when
Exclaimable module is included in Person and *after* a Person class methods
are 'initialized'
require 'active_support/concern'
module Exclaimable
extend ActiveSupport::Concern
included do
self.new.hello
end
end
class Person
include Exclaimable
def hello
puts 'person hello'
end
end
module Exclaimable
extend ActiveSupport::Concern
included do
self.new.hello
end
end
class Person
include Exclaimable
def hello
puts 'person hello'
end
end
Output: Exception: NoMethodError: undefined method `hello' for
#<Person:0x00000103cbdcd0>
But i see that, Person class doesn't have hello method, why ? Please, help
!
So, i can't understand - what diifference between
included do
self.new.hello
end
self.new.hello
end
and class method:
self.included(base)
base.new.hello
end
base.new.hello
end
Both code get same error ( see above )
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