Fixed missing portal product data (#14115)

closes  https://github.com/TryGhost/Team/issues/1311

For some sites, the `portal_products` array was created without any value and due to a possible bug in older version of Ghost, it also didn't get filled on Stripe connect with default product. This causes a side-effect of sites not showing the prices in Portal when tiers beta is enabled or is out as GA. This change populates the missing product data in `portal_product` for sites that have a single tier (haven't enabled tiers beta), as they right now don't have an option to hide the tier.

core/server/data/migrations/versions/4.35/2022-02-04-04-34-populate-empty-portal-products.js

@@ -0,0 +1,60 @@
+const {createTransactionalMigration} = require('../../utils');
+const logging = require('@tryghost/logging');
+
+module.exports = createTransactionalMigration(
+    async function up(knex) {
+        const products = await knex
+            .select('id')
+            .where({
+                type: 'paid'
+            })
+            .from('products');
+
+        if (products.length === 0) {
+            logging.warn(`Skipping updating portal_products, no product exists`);
+            return;
+        }
+
+        if (products.length > 1) {
+            logging.warn(`Skipping updating portal_products, tiers beta is enabled`);
+            return;
+        }
+
+        const portalProductsSetting = await knex('settings')
+            .where('key', 'portal_products')
+            .select('value')
+            .first();
+
+        if (!portalProductsSetting) {
+            logging.warn(`Missing portal_products setting`);
+            return;
+        }
+        try {
+            const currPortalProductsValue = JSON.parse(portalProductsSetting.value);
+
+            if (currPortalProductsValue.length > 0) {
+                logging.warn(`Ignoring - portal_products setting is not empty, - ${currPortalProductsValue}`);
+                return;
+            }
+
+            const defaultProduct = products[0];
+            const portalProductsValue = [defaultProduct.id];
+
+            logging.info(`Setting portal_products setting to have product - ${defaultProduct.id}`);
+
+            const now = knex.raw('CURRENT_TIMESTAMP');
+
+            await knex('settings')
+                .where('key', 'portal_products')
+                .update({
+                    value: JSON.stringify(portalProductsValue),
+                    updated_at: now
+                });
+        } catch (e) {
+            logging.warn(`Ignoring, unable to parse portal_products setting value - ${portalProductsSetting.value}`);
+            logging.warn(e);
+        }
+    },
+    // no-op - we don't want to return to invalid state
+    async function down() {}
+);