Added expiry column for complimentary subscriptions (#15241)

refs https://github.com/TryGhost/Team/issues/1727

- allows adding expiry date to complimentary subscriptions, effectively allowing cardless trials.
- expiry is stored in members<>products mapping table

ghost/core/core/server/data/migrations/versions/5.10/2022-08-15-05-34-add-expiry-at-column-to-members-products.js

@@ -0,0 +1,6 @@
+const {createAddColumnMigration} = require('../../utils');
+
+module.exports = createAddColumnMigration('members_products', 'expiry_at', {
+    type: 'dateTime',
+    nullable: true
+});

ghost/core/core/server/data/schema/schema.js

@@ -466,7 +466,8 @@ module.exports = {
         id: {type: 'string', maxlength: 24, nullable: false, primary: true},
         member_id: {type: 'string', maxlength: 24, nullable: false, references: 'members.id', cascadeDelete: true},
         product_id: {type: 'string', maxlength: 24, nullable: false, references: 'products.id', cascadeDelete: true},
-        sort_order: {type: 'integer', nullable: false, unsigned: true, defaultTo: 0}
+        sort_order: {type: 'integer', nullable: false, unsigned: true, defaultTo: 0},
+        expiry_at: {type: 'dateTime', nullable: true}
     },
     posts_products: {
         id: {type: 'string', maxlength: 24, nullable: false, primary: true},

ghost/core/test/unit/server/data/schema/integrity.test.js

@@ -35,7 +35,7 @@ const validateRouteSettings = require('../../../../../core/server/services/route
  */
 describe('DB version integrity', function () {
     // Only these variables should need updating
-    const currentSchemaHash = '36796d1729450e8d2184bb5360067919';
+    const currentSchemaHash = '75ee5448311cbfb4c65e3843b6750d29';
     const currentFixturesHash = '0ae1887dd0b42508be946bdbd20d41c8';
     const currentSettingsHash = 'd54210758b7054e2174fd34aa2320ad7';
     const currentRoutesHash = '3d180d52c663d173a6be791ef411ed01';