Added confirmation to study group auto updates

booking.module

@@ -394,7 +394,7 @@ function booking_menu() {
 			'title'                               => 'Update Study Groups',
 			'description'                         => 'Calculate updated Study Group memberships',
 			'page callback'                       => 'drupal_get_form',
-			'page arguments'                      => array('booking_studygroups_update', 3),
+			'page arguments'                      => array('booking_studygroups_update_form', 3),
 			'access arguments'                    => array('edit study groups'),
 			//'type'                                => MENU_LOCAL_ACTION,
 		);
@@ -742,3 +742,44 @@ function booking_node_presave($node) {
 		//watchdog('booking', 'Presave of person: @info', array('@info' => var_export($node, TRUE)));		
 	}
 }
+
+
+/**
+ * Function for generating the "lucky number" to be used on the lanyard
+ */
+function booking_generate_luckynumbers() {
+	global $event;
+	
+	$i = 0;
+
+	//query for the mappings relating to $readinggroup_studygroup_id
+	$attendee_query = db_query("SELECT * FROM {booking_person} WHERE booking_event_id = :eid",
+		 array(':eid' => $event->eid));
+	$attendees = $attendee_query->fetchAll();
+	
+	//assuming there's less than 900 people, generate numbers within that range and shuffle the order
+	$numbers = range(100,999);
+	shuffle($numbers);
+	
+	foreach ($attendees as $attendee)
+	{
+		$luckynum = $numbers[$i++];
+		
+		drupal_set_message(t('Updating user !id to have lucky number !num.', 
+			array('!id' => $attendee->nid, '!num' => $luckynum)));
+		
+		//run an update query
+		
+		db_update('booking_person')
+		->fields(array (
+			'booking_luckynum' => $luckynum,
+			))
+		->condition('nid', $attendee->nid)
+		->execute();
+				
+	}
+	drupal_set_message(t('Finished.'));
+
+	return t("<h3>Generate Lucky Numbers</h3>");	 
+		
+}