Added migration for package avoiding

Author: SilverFire

Diff for: src/migrations/m170424_144100_package_avoiding.php

@@ -0,0 +1,25 @@
+<?php
+
+namespace hiqdev\assetpackagist\migrations;
+
+use yii\db\Migration;
+
+/**
+ * Migration for packages avoiding
+ *
+ * @author Dmytro Naumenko <d.naumenko.a@gmail.com>
+ */
+class m170424_144100_package_avoiding extends Migration
+{
+    public function up()
+    {
+        $this->addColumn('package', 'is_avoided', $this->boolean()->defaultExpression('false'));
+
+        $this->createIndex('package-is_avoided-idx', 'package', 'is_avoided');
+    }
+
+    public function down()
+    {
+        $this->dropColumn('package', 'is_avoided');
+    }
+}