Misc fixes and new function service_change

modules/service/classes/Model/Service.php

@@ -22,6 +22,7 @@ class Model_Service extends ORM_OSB {
 	protected $_has_many = array(
 		'invoice_item'=>array('far_key'=>'id'),
 		'invoice'=>array('through'=>'invoice_item'),
+		'service_change'=>array('far_key'=>'id'),
 	);
 	protected $_belongs_to = array(
 		'product'=>array(),
@@ -75,6 +76,10 @@ class Model_Service extends ORM_OSB {
 		return is_null($plugin=$this->plugin()) ? $this->product->name() : $plugin->name();
 	}
 
+	public function pending_change() {
+		return count($this->service_change->where_active()->where_open()->and_where('complete','!=',1)->or_where('complete','IS',null)->where_close()->find_all()->as_array());
+	}
+
 	/**
 	 * Display how much is due on this service
 	 */