Add License subscription_id to usage ping

ee/app/models/license.rb

@@ -388,6 +388,11 @@ class License < ApplicationRecord
     restricted_attr(:add_ons, {})
   end
 
+  # License zuora_subscription_id
+  def subscription_id
+    restricted_attr(:subscription_id)
+  end
+
   def features_from_add_ons
     add_ons.map { |name, count| FEATURES_FOR_ADD_ONS[name] if count.to_i > 0 }.compact
   end

ee/changelogs/unreleased/297512-add-license-subscription_id-to-usage-ping.yml

+---
+title: Add License subscription_id to Usage Ping
+merge_request: 51601
+author:
+type: added

ee/lib/ee/gitlab/usage_data.rb

@@ -102,6 +102,7 @@ module EE
             usage_data[:license_plan] = license.plan
             usage_data[:license_add_ons] = license.add_ons
             usage_data[:license_trial] = license.trial?
+            usage_data[:license_subscription_id] = alt_usage_data(fallback: nil) { license.subscription_id }
           end
 
           usage_data

ee/spec/factories/licenses.rb

@@ -35,7 +35,8 @@ FactoryBot.define do
           'GitLab_FileLocks' => 1,
           'GitLab_Auditor_User' => 1
         },
-        plan: plan
+        plan: plan,
+        subscription_id: '0000'
       }
     end
   end

ee/spec/lib/ee/gitlab/usage_data_spec.rb

@@ -72,6 +72,7 @@ RSpec.describe Gitlab::UsageData do
         license_starts_at
         license_user_count
         license_trial
+        license_subscription_id
         licensee
         license_md5
         license_id
@@ -189,6 +190,7 @@ RSpec.describe Gitlab::UsageData do
       expect(subject[:license_expires_at]).to eq(license.expires_at)
       expect(subject[:license_add_ons]).to eq(license.add_ons)
       expect(subject[:license_trial]).to eq(license.trial?)
+      expect(subject[:license_subscription_id]).to eq(license.subscription_id)
     end
   end
 

ee/spec/models/license_spec.rb

@@ -816,6 +816,15 @@ RSpec.describe License do
     end
   end
 
+  describe '#subscription_id' do
+    it 'has correct subscription_id' do
+      gl_license = build(:gitlab_license, restrictions: { subscription_id: "1111" })
+      license = build(:license, data: gl_license.export)
+
+      expect(license.subscription_id).to eq("1111")
+    end
+  end
+
   describe '#daily_billable_users_count' do
     before_all do
       create(:group_member)