From 3fe07cca57146f29ce964a6eeb868909aa9477da Mon Sep 17 00:00:00 2001
From: Michael <heluecht@pirati.ca>
Date: Sat, 19 May 2018 14:55:27 +0000
Subject: [PATCH] Issue 2880: Editing post doesn't destroy mentions or hashtags
 anymore

---
 include/text.php   | 5 +++++
 mod/item.php       | 5 +++++
 src/Model/Item.php | 2 +-
 3 files changed, 11 insertions(+), 1 deletion(-)

diff --git a/include/text.php b/include/text.php
index 4c9a8864d5..6830f91e0f 100644
--- a/include/text.php
+++ b/include/text.php
@@ -14,6 +14,7 @@ use Friendica\Core\L10n;
 use Friendica\Core\PConfig;
 use Friendica\Core\System;
 use Friendica\Database\DBM;
+use Friendica\Model\Contact;
 use Friendica\Model\Event;
 use Friendica\Model\Item;
 use Friendica\Model\Profile;
@@ -1965,6 +1966,10 @@ function undo_post_tagging($s) {
 	$cnt = preg_match_all('/([!#@])\[url=(.*?)\](.*?)\[\/url\]/ism', $s, $matches, PREG_SET_ORDER);
 	if ($cnt) {
 		foreach ($matches as $mtch) {
+			if (in_array($mtch[1], ['!', '@'])) {
+				$contact = Contact::getDetailsByURL($mtch[2]);
+				$mtch[3] = empty($contact['addr']) ? $mtch[2] : $contact['addr'];
+			}
 			$s = str_replace($mtch[0], $mtch[1] . $mtch[3],$s);
 		}
 	}
diff --git a/mod/item.php b/mod/item.php
index 1bbc085279..a3ed63cd97 100644
--- a/mod/item.php
+++ b/mod/item.php
@@ -661,6 +661,11 @@ function item_post(App $a) {
 		$datarray['edit'] = true;
 	}
 
+	// Check for hashtags in the body and repair or add hashtag links
+	if ($preview || $orig_post) {
+		Item::setHashtags($datarray);
+	}
+
 	// preview mode - prepare the body for display and send it via json
 	if ($preview) {
 		require_once 'include/conversation.php';
diff --git a/src/Model/Item.php b/src/Model/Item.php
index 0a480d755b..309ddd858d 100644
--- a/src/Model/Item.php
+++ b/src/Model/Item.php
@@ -1250,7 +1250,7 @@ class Item extends BaseObject
 		}
 	}
 
-	private static function setHashtags(&$item)
+	public static function setHashtags(&$item)
 	{
 
 		$tags = get_tags($item["body"]);