1 files changed, 28 insertions, 0 deletions
diff --git a/include/msglib.php b/include/msglib.php
new file mode 100644
index 000000000..f0bf523de
--- /dev/null
+++ b/include/msglib.php
@@ -0,0 +1,28 @@
+<?php
+
+/* Common private message processing functions */
+
+function msg_drop($message_id, $channel_id, $conv_guid) {
+
+    // Delete message
+    $r = q("DELETE FROM mail WHERE id = %d AND channel_id = %d",
+        intval($message_id),
+        intval($channel_id)
+    );
+
+    // Get new first message...
+    $r = q("SELECT mid, parent_mid FROM mail WHERE conv_guid = '%s' AND channel_id = %d ORDER BY id ASC LIMIT 1",
+        dbesc($conv_guid),
+        intval($channel_id)
+    );
+    // ...and if wasn't first before...
+    if ($r[0]['mid'] != $r[0]['parent_mid']) {
+        // ...refer whole thread to it
+        q("UPDATE mail SET parent_mid = '%s', mail_isreply = abs(mail_isreply - 1) WHERE conv_guid = '%s' AND channel_id = %d",
+            dbesc($r[0]['mid']),
+            dbesc($conv_guid),
+            intval($channel_id)
+        );
+    }
+
+}