! Might help if I committed these but note that they aren't finished yet.

Signed-off-by: Peter Spicer <[email protected]>

Sources/tasks/EventNew-Notify.php

@@ -0,0 +1,90 @@
+<?php
+
+/**
+ * This taks handles notifying someone that a new event has been
+ * added to the calendar - but only when no topic has been created.
+ * 
+ * Simple Machines Forum (SMF)
+ * 
+ * @package SMF
+ * @author Simple Machines http://www.simplemachines.org
+ * @copyright 2014 Simple Machines and individual contributors
+ * @license http://www.simplemachines.org/about/smf/license.php BSD
+ * 
+ * @version SMF 2.1 Alpha 1
+ */
+
+class EventNew_Notify_Background extends SMF_BackgroundTask
+{
+	public function execute()
+ 	{
+ 		global $sourcedir, $smcFunc, $language, $modSettings, $user_profile;
+
+		// Get everyone who could be notified - those are the people who can see the calendar.
+		require_once($sourcedir . '/Subs-Members.php');
+		$members = membersAllowedTo('calendar_view');
+
+		// Having successfully figured this out, now let's get the preferences of everyone.
+		require_once($sourcedir . '/Subs-Notify.php');
+		$prefs = getNotifyPrefs($members, 'event_new', true);
+
+		// Just before we go any further, we may not have the sender's name. Let's just quickly fix that.
+		// If a guest creates the event, we wouldn't be capturing a username or anything.
+		if (!empty($this->_details['sender_id']) && empty($this->_details['sender_name']))
+		{
+			loadMemberData($this->_details['sender_id'], 'minimal');
+			if (!empty($user_profile[$this->_details['sender_id']))
+				$this->_details['sender_name'] = $user_profile[$this->_details['sender_id']]['real_name'];
+			else
+				$this->_details['sender_id'] = 0;
+		}
+
+		// So now we find out who wants what.
+		$alert_bits = array(
+			'alert' => 0x01,
+			'email' => 0x02,
+		);
+		$notifies = array();
+
+		foreach ($prefs as $member => $pref_option)
+		{
+			foreach ($alert_bits as $type => $bitvalue)
+				if ($pref_option['event_new'] & $bitvalue)
+					$notifies[$type][] = $member;
+		}
+
+		// Firstly, anyone who wants alerts.
+		if (!empty($notifies['alert']))
+		{
+			// Alerts are relatively easy.
+			$insert_rows = array();
+			foreach ($notifies['alert'] as $member)
+			{
+				$insert_rows[] = array(
+					'alert_time' => $this->_details['time'],
+					'id_member' => $member,
+					'id_member_started' => $this->_details['sender_id'],
+					'member_name' => $this->_details['sender_name'],
+					'content_type' => 'event',
+					'content_id' => $this->_details['event_id'],
+					'content_action' => empty($this->_details['sender_id']) ? 'new_guest' : 'new',
+					'is_read' => 0,
+					'extra' => '',
+				);
+			}
+
+			$smcFunc['db_insert']('insert',
+				'{db_prefix}user_alerts',
+				array('alert_time' => 'int', 'id_member' => 'int', 'id_member_started' => 'int',
+					'member_name' => 'string', 'content_type' => 'string', 'content_id' => 'int',
+					'content_action' => 'string', 'is_read' => 'int', 'extra' => 'string'),
+				$insert_rows,
+				array('id_alert')
+			);
+
+			// And update the count of alerts for those people.
+			updateMemberData($notifies['alert'], array('alerts' => '+'));
+		}
+	}
+}
+?>

Themes/default/languages/Alerts.english.php

@@ -17,4 +17,8 @@ $txt['alert_member_register_standard'] = '{member_link} just signed up';
 $txt['alert_member_register_approval'] = '{member_link} just signed up (account requires approval)';
 $txt['alert_member_register_activation'] = '{member_link} just signed up (account requires activation)';
 $txt['alert_member_group_request'] = '{member_link} has requested to join {group_name}';
+
+$txt['alert_event_new_guest'] = 'A new event, <a href="{scripturl}?action=calendar;event={event_id}">{event_title}</a>, was added to the calendar.';
+$txt['alert_event_new'] = '{member_link} added a new event, <a href="{scripturl}?action=calendar;event={event_id}">{event_title}</a> to the calendar.';
+$txt['alert_event_new_topic'] = '{member_link} added a new event, {topic_msg}, to the calendar.'; 
 ?>