feat: added Sequelize seeder

lib/database/index.js

@@ -95,7 +95,15 @@ class SequelizeDatabase extends Database {
      * @returns {Promise} Promise object represents the outcome.
      */
     async seed() {
-        // This is a no-op method
+        const umzug = new Umzug({
+            migrations: {
+                params: [this.sequelize.getQueryInterface(), Sequelize],
+                path: path.join(__dirname, 'seeders'),
+            },
+            storage: 'none',
+        });
+
+        return umzug.up();
     }
 }
 

lib/database/seeders/20200426144121-seeder-skeleton.js

@@ -0,0 +1,34 @@
+/**
+ * @license
+ * Copyright CERN and copyright holders of ALICE O2. This software is
+ * distributed under the terms of the GNU General Public License v3 (GPL
+ * Version 3), copied verbatim in the file "COPYING".
+ *
+ * See http://alice-o2.web.cern.ch/license for full licensing information.
+ *
+ * In applying this license CERN does not waive the privileges and immunities
+ * granted to it by virtue of its status as an Intergovernmental Organization
+ * or submit itself to any jurisdiction.
+ */
+
+module.exports = {
+    up: (queryInterface, _Sequelize) => queryInterface.bulkInsert('Logs', [
+        {
+            title: 'First entry',
+            createdAt: new Date(),
+            updatedAt: new Date(),
+        },
+        {
+            title: 'Second entry',
+            createdAt: new Date(),
+            updatedAt: new Date(),
+        },
+        {
+            title: 'Third entry',
+            createdAt: new Date(),
+            updatedAt: new Date(),
+        },
+    ]),
+
+    down: (queryInterface, _Sequelize) => queryInterface.bulkDelete('Logs', null, {}),
+};