initial

wp-content/plugins/gravitysmtp/includes/migration/class-migrator-collection.php

@@ -0,0 +1,38 @@
+<?php
+
+namespace Gravity_Forms\Gravity_SMTP\Migration;
+
+class Migrator_Collection {
+
+	/**
+	 * @var Migrator[]
+	 */
+	private $migrators = array();
+
+	public function add( $key, $migrator ) {
+		$this->migrators[ $key ] = $migrator;
+	}
+
+	public function remove( $key ) {
+		unset( $this->migrators[ $key ] );
+	}
+
+	public function get( $key ) {
+		return isset( $this->migrators[ $key ] ) ? $this->migrators[ $key ] : null;
+	}
+
+	public function run_all() {
+		foreach( $this->migrators as $key => $migrator ) {
+			$migrator->migrate();
+		}
+	}
+
+	public function run( $key ) {
+		if ( ! isset( $this->migrators[ $key ] ) ) {
+			return;
+		}
+
+		$this->migrators[ $key ]->migrate();
+	}
+
+}