We now are having an item class and a method to change item entries

mod/item.php

@@ -21,6 +21,7 @@ use Friendica\Core\Worker;
 use Friendica\Database\DBM;
 use Friendica\Model\Contact;
 use Friendica\Model\GContact;
+use Friendica\Model\Item;
 use Friendica\Network\Probe;
 use Friendica\Protocol\Diaspora;
 use Friendica\Protocol\Email;
@@ -820,16 +821,11 @@ function item_post(App $a) {
 			'edited' => datetime_convert(),
 			'changed' => datetime_convert());
 
-		dba::update('item', $fields, ['id' => $post_id]);
-
-		create_tags_from_item($post_id);
-		create_files_from_item($post_id);
-		update_thread($post_id);
+		Item::update($fields, ['id' => $post_id]);
 
 		// update filetags in pconfig
 		file_tag_update_pconfig($uid,$categories_old,$categories_new,'category');
 
-		Worker::add(PRIORITY_HIGH, "Notifier", 'edit_post', $post_id);
 		if (x($_REQUEST, 'return') && strlen($return_path)) {
 			logger('return: ' . $return_path);
 			goaway($return_path);

src/Model/Item.php

@@ -0,0 +1,56 @@
+<?php
+
+/**
+ * @file src/Model/Item.php
+ */
+
+namespace Friendica\Model;
+
+use Friendica\Core\Worker;
+use dba;
+
+require_once 'include/tags.php';
+require_once 'include/files.php';
+require_once 'include/threads.php';
+
+class Item
+{
+	/**
+	 * @brief Update existing item entries
+	 *
+	 * @param array $fields The fields that are to be changed
+	 * @param array $condition The condition for finding the item entries
+	 *
+	 * @return boolean success
+	 */
+	public static function update(array $fields, array $condition)
+	{
+		if (empty($condition) || empty($fields)) {
+			return false;
+		}
+
+		$success = dba::update('item', $fields, $condition);
+
+		if (!$success) {
+			return false;
+		}
+
+		// We cannot simply expand the condition to check for origin entries
+		// The condition needn't to be a simple array but could be a complex condition.
+		$items = dba::select('item', ['id', 'origin'], $condition);
+		while ($item = dba::fetch($items)) {
+			// We only need to notfiy others when it is an original entry from us
+			if (!$item['origin']) {
+				continue;
+			}
+
+			create_tags_from_item($item['id']);
+			create_files_from_item($item['id']);
+			update_thread($item['id']);
+
+			Worker::add(PRIORITY_HIGH, "Notifier", 'edit_post', $item['id']);
+		}
+
+		return true;
+	}
+}