Add auto_renew to gitlab subscriptions

- This enables us to eventually display an interface to notify
users of the fact that their subscription will be ending and what
they might be able to do about it.

db/migrate/20200211174946_add_auto_renew_to_gitlab_subscriptions.rb

+# frozen_string_literal: true
+
+class AddAutoRenewToGitlabSubscriptions < ActiveRecord::Migration[6.0]
+  DOWNTIME = false
+
+  def change
+    add_column :gitlab_subscription_histories, :auto_renew, :boolean
+    add_column :gitlab_subscriptions, :auto_renew, :boolean
+  end
+end

db/schema.rb

@@ -1909,6 +1909,7 @@ ActiveRecord::Schema.define(version: 2020_02_13_220211) do
     t.bigint "gitlab_subscription_id", null: false
     t.datetime_with_timezone "created_at"
     t.date "trial_starts_on"
+    t.boolean "auto_renew"
     t.index ["gitlab_subscription_id"], name: "index_gitlab_subscription_histories_on_gitlab_subscription_id"
   end
 
@@ -1924,6 +1925,7 @@ ActiveRecord::Schema.define(version: 2020_02_13_220211) do
     t.integer "seats", default: 0
     t.boolean "trial", default: false
     t.date "trial_starts_on"
+    t.boolean "auto_renew"
     t.index ["hosted_plan_id"], name: "index_gitlab_subscriptions_on_hosted_plan_id"
     t.index ["namespace_id"], name: "index_gitlab_subscriptions_on_namespace_id", unique: true
   end

ee/changelogs/unreleased/jejacks0n-auto-renew-on-gitlab-subscription.yml

+---
+title: Add auto_renew attribute to gitlab_subscriptions and expose via api
+merge_request: 24896
+author: jejacks0n
+type: changed

ee/lib/ee/api/entities.rb

@@ -816,6 +816,7 @@ module EE
           expose :plan_name, as: :code
           expose :plan_title, as: :name
           expose :trial
+          expose :auto_renew
           expose :upgradable?, as: :upgradable
         end
 

ee/lib/ee/api/namespaces.rb

@@ -40,6 +40,7 @@ module EE
               optional :max_seats_used, type: Integer, default: 0, desc: 'The max number of active users detected in the last month'
               optional :plan_code, type: String, desc: 'The code of the purchased plan'
               optional :end_date, type: Date, desc: 'The date when subscription expires'
+              optional :auto_renew, type: Grape::API::Boolean, desc: 'Whether the subscription auto renews'
               optional :trial, type: Grape::API::Boolean, desc: 'Whether the subscription is trial'
               optional :trial_ends_on, type: Date, desc: 'The date when the trial expires'
               optional :trial_starts_on, type: Date, desc: 'The date when the trial starts'

ee/lib/ee/gitlab/background_migration/generate_gitlab_subscriptions.rb

@@ -42,6 +42,7 @@ module EE
                       hosted_plan_id: namespace.plan_id,
                       trial: namespace.trial_active?,
                       start_date: namespace.created_at.to_date,
+                      auto_renew: false,
                       seats: 0,
                       created_at: now,
                       updated_at: now

ee/spec/requests/api/namespaces_spec.rb

@@ -279,7 +279,7 @@ describe API::Namespaces do
         do_get(owner)
 
         expect(json_response.keys).to match_array(%w[plan usage billing])
-        expect(json_response['plan'].keys).to match_array(%w[name code trial upgradable])
+        expect(json_response['plan'].keys).to match_array(%w[name code trial upgradable auto_renew])
         expect(json_response['plan']['name']).to eq('Silver')
         expect(json_response['plan']['code']).to eq('silver')
         expect(json_response['plan']['trial']).to eq(false)