How can I call a class method from Model rails

Question

app/services/mail_service

class MailService
 def subscribe
  code
 end 
end

User Model

class User < ActiveRecord::Base
 after_create :user_subscribe
 def user_subscribe
    Services::MailService.new
 end
end

It shows error like uninitialized constant Services

Answer 1

您不必编写服务，只需编写：-

MailService.new

Answer 2

Try this

require 'MailService.rb'
class User < ActiveRecord::Base
 after_create :user_subscribe
 def user_subscribe
    MailService.new
 end
end