Automat mail chimp subscription

app/controllers/supporters_controller.rb

@@ -9,6 +9,7 @@ class SupportersController < ApplicationController
     @supporter = Supporter.new supporter_form_params.merge(language: I18n.locale)
     if !input_to_fast? && @supporter.save
       # SupporterMailer.welcome_email(@supporter).deliver_now
+      mailchimp_registration
       redirect_to thanks_path
     else
       flash.now[:danger] = t '.timeout' if input_to_fast?
@@ -21,4 +22,20 @@ class SupportersController < ApplicationController
   def supporter_form_params
     params.require(:supporter).permit(:first_name, :last_name, :street, :zip, :email, :support, :li_membership, :age_category, :city, :comments)
   end
+
+  def mailchimp_registration
+    mailchimp = Mailchimp::API.new(ENV['MAILCHIMP_API'])
+    mailchimp.lists.subscribe(ENV['CH420_LIST_ID'], { 'email' => @supporter.email }, merge_vars, 'html', false)
+  end
+
+  def merge_vars
+    { 'EMAIL' => @supporter.email,
+      'FNAME' => @supporter.first_name,
+      'LNAME' => @supporter.last_name,
+      'SUPPORT' => @supporter.support,
+      'MEMBERSHIP' => @supporter.li_membership.to_s,
+      'AGE' => @supporter.age_category,
+      'LANG' => @supporter.language,
+      'ZIP' => @supporter.zip }
+  end
 end

app/models/supporter.rb

@@ -4,7 +4,7 @@ class Supporter
   include Mongoid::Paranoia
   include Geocoder::Model::Mongoid
 
-  COUNTER_START = 10003
+  COUNTER_START = 10_003
 
   geocoded_by :address
   after_validation :geocode          # auto-fetch coordinates