diff --git a/database.sql b/database.sql
index 6a55db5269..02d1ac895c 100644
--- a/database.sql
+++ b/database.sql
@@ -1,6 +1,6 @@
 -- ------------------------------------------
--- Friendica 2019.12-rc (Dalmatian Bellflower)
--- DB_UPDATE_VERSION 1328
+-- Friendica 2020.03-dev (Dalmatian Bellflower)
+-- DB_UPDATE_VERSION 1329
 -- ------------------------------------------
 
 
@@ -1285,6 +1285,7 @@ CREATE TABLE IF NOT EXISTS `user-item` (
 	`hidden` boolean NOT NULL DEFAULT '0' COMMENT 'Marker to hide an item from the user',
 	`ignored` boolean COMMENT 'Ignore this thread if set',
 	`pinned` boolean COMMENT 'The item is pinned on the profile page',
+	`notification-type` tinyint unsigned NOT NULL DEFAULT 0 COMMENT '',
 	 PRIMARY KEY(`uid`,`iid`),
 	 INDEX `uid_pinned` (`uid`,`pinned`)
 ) DEFAULT COLLATE utf8mb4_general_ci COMMENT='User specific item data';
diff --git a/src/Model/UserItem.php b/src/Model/UserItem.php
new file mode 100644
index 0000000000..26c42f1093
--- /dev/null
+++ b/src/Model/UserItem.php
@@ -0,0 +1,85 @@
+<?php
+
+/**
+ * @file src/Model/UserItem.php
+ */
+
+namespace Friendica\Model;
+
+use Friendica\Database\DBA;
+
+class UserItem
+{
+	/**
+	 * Checks an item for notifications and sets the "notification-type" field
+	 *
+	 * @param array $item The message array that is checked for notifications
+	 * @param int   $uid  User ID
+	 */
+	public static function setNotification($item, $uid)
+	{
+	}
+
+	private static function checkShared($item, $uid)
+	{
+		if ($item['gravity'] != GRAVITY_PARENT) {
+			return false;
+		}
+
+		// Send a notification for every new post?
+		// Either the contact had posted something directly
+		if (DBA::exists('contact', ['id' => $item['contact-id'], 'notify_new_posts' => true])) {
+			return true;
+		}
+
+		// Or the contact is a mentioned forum
+		$tags = DBA::select('term', ['url'], ['otype' => TERM_OBJ_POST, 'oid' => $itemid, 'type' => TERM_MENTION, 'uid' => $uid]);
+		while ($tag = DBA::fetch($tags)) {
+			$condition = ['nurl' => Strings::normaliseLink($tag["url"]), 'uid' => $uid, 'notify_new_posts' => true, 'contact-type' => Contact::TYPE_COMMUNITY];
+			if (DBA::exists('contact', $condition)) {
+				return true;
+			}
+		}
+
+		return false;
+	}
+
+	// Is the user mentioned in this post?
+	private static function checkTagged($item, $uid)
+	{
+		if ($item["mention"]) {
+			return true;
+		}
+
+		foreach ($profiles AS $profile) {
+			if (strpos($item["tag"], "=".$profile."]") || strpos($item["body"], "=".$profile."]"))
+				return true;
+		}
+
+		if ($defaulttype == NOTIFY_TAGSELF) {
+			return true;
+		}
+
+		return false;
+	}
+
+	private static function checkCommented($item, $uid)
+	{
+		// Is it a post that the user had started?
+		$fields = ['ignored', 'mention'];
+		$thread = Item::selectFirstThreadForUser($uid, $fields, ['iid' => $item["parent"], 'deleted' => false]);
+
+		if ($thread['mention'] && !$thread['ignored']) {
+			return true;
+		}
+
+		// And now we check for participation of one of our contacts in the thread
+		$condition = ['parent' => $item["parent"], 'author-id' => $contacts, 'deleted' => false];
+
+		if (!$thread['ignored'] && Item::exists($condition)) {
+			return true;
+		}
+
+		return false;
+	}
+}
diff --git a/static/dbstructure.config.php b/static/dbstructure.config.php
index ada837fb26..a7d851943d 100755
--- a/static/dbstructure.config.php
+++ b/static/dbstructure.config.php
@@ -34,7 +34,7 @@
 use Friendica\Database\DBA;
 
 if (!defined('DB_UPDATE_VERSION')) {
-	define('DB_UPDATE_VERSION', 1328);
+	define('DB_UPDATE_VERSION', 1329);
 }
 
 return [
@@ -1388,7 +1388,8 @@ return [
 			"uid" => ["type" => "mediumint unsigned", "not null" => "1", "default" => "0", "primary" => "1", "relation" => ["user" => "uid"], "comment" => "User id"],
 			"hidden" => ["type" => "boolean", "not null" => "1", "default" => "0", "comment" => "Marker to hide an item from the user"],
 			"ignored" => ["type" => "boolean", "comment" => "Ignore this thread if set"],
-			"pinned" => ["type" => "boolean", "comment" => "The item is pinned on the profile page"]
+			"pinned" => ["type" => "boolean", "comment" => "The item is pinned on the profile page"],
+			"notification-type" => ["type" => "tinyint unsigned", "not null" => "1", "default" => "0", "comment" => ""],
 		],
 		"indexes" => [
 			"PRIMARY" => ["uid", "iid"],