Add migration

application/migrations/238_add_norad_id_to_sat.php

@@ -0,0 +1,29 @@
+<?php
+
+defined('BASEPATH') OR exit('No direct script access allowed');
+
+class Migration_add_norad_id_to_sat extends CI_Migration {
+
+	public function up() {
+		if ($this->db->table_exists('satellite')) {
+			$fields = array(
+				'norad_id' => array(
+					'type' => 'INT',
+					'constraint' => 9,
+					'unsigned' => TRUE,
+					'null' => TRUE,
+					'default' => NULL
+				),
+			);
+			$this->dbforge->add_column('satellite', $fields);
+		}
+	}
+
+	public function down() {
+		if ($this->db->table_exists('satellite')) {
+			if ($this->db->field_exists('norad_id', 'satellite')) {
+				$this->dbforge->drop_column('satellite', 'norad_id');
+			}
+		}
+	}
+}