Add talk level field possibly be used in schedule

Author: jakefolio

db/migrations/20160121150808_add_talk_level_field.php

@@ -0,0 +1,27 @@
+<?php
+
+use Phinx\Migration\AbstractMigration;
+
+class AddTalkLevelField extends AbstractMigration
+{
+
+    /**
+     * Migrate Up.
+     */
+    public function up()
+    {
+        $this->table('talks')
+            ->addColumn('level', 'string', ['length' => 20])
+            ->save();
+    }
+
+    /**
+     * Migrate Down.
+     */
+    public function down()
+    {
+        $this->table('talks')
+            ->removeColumn('level')
+            ->save();
+    }
+}