Registration and activation

backend/migrations/add_trigger_for_hashedId.cjs

@@ -0,0 +1,30 @@
+'use strict';
+
+module.exports = {
+    up: async (queryInterface, Sequelize) => {
+        await queryInterface.sequelize.query(`
+            CREATE OR REPLACE FUNCTION community.update_hashed_id() RETURNS TRIGGER AS $$
+            BEGIN
+                NEW.hashed_id = encode(digest(NEW.id::text, 'sha256'), 'hex');
+                RETURN NEW;
+            END;
+            $$ LANGUAGE plpgsql;
+        `);
+
+        await queryInterface.sequelize.query(`
+            CREATE TRIGGER update_hashed_id_trigger
+            BEFORE INSERT OR UPDATE ON community.user
+            FOR EACH ROW EXECUTE FUNCTION community.update_hashed_id();
+        `);
+    },
+
+    down: async (queryInterface, Sequelize) => {
+        await queryInterface.sequelize.query(`
+            DROP TRIGGER IF EXISTS update_hashed_id_trigger ON community.user;
+        `);
+
+        await queryInterface.sequelize.query(`
+            DROP FUNCTION IF EXISTS community.update_hashed_id();
+        `);
+    }
+};