Adding migration for new fields

config/Migrations/20200714095531_AddingVariantsAndMetadataFields.php

@@ -0,0 +1,25 @@
+<?php
+
+use Migrations\AbstractMigration;
+
+/**
+ * AddingVariantsAndMetadataFields
+ */
+class AddingVariantsAndMetadataFields extends AbstractMigration
+{
+	/**
+	 * Change Method.
+	 *
+	 * More information on this method is available here:
+	 * https://book.cakephp.org/phinx/0/en/migrations.html#the-change-method
+	 *
+	 * @return void
+	 */
+	public function change()
+	{
+		$this->table('file_storage')
+			->addColumn('variants', 'json', ['null' => true])
+			->addColumn('metadata', 'json', ['null' => true])
+			->update();
+	}
+}