attach_move() function created to relocate files or photos to different directories in the cloud area and photo albums without deleting and recreating (which would create a new resource_id and invalidate any existing links).

include/attach.php

@@ -1994,3 +1994,73 @@ function get_filename_by_cloudname($cloudname, $channel, $storepath) {
 	}
 	return null;
 }
+
+/**
+ * attach_move()
+ * This function performs an in place directory-to-directory move of a stored attachment or photo.
+ * The data is physically moved in the store/nickname storage location and the paths adjusted
+ * in the attach structure (and if applicable the photo table). The new 'album name' is recorded
+ * for photos and will show up immediately there.
+ * This takes a channel_id, attach.hash of the file to move (this is the same as a photo resource_id), and
+ * the attach.hash of the new parent folder, which must already exist. If $new_folder_hash is blank or empty,
+ * the file is relocated to the root of the channel's storage area. 
+ *
+ * @fixme: this operation is currently not synced to clones !!
+ */
+
+function attach_move($channel_id,$resource_id,$new_folder_hash) {
+
+	$c = channelx_by_n($channel_id);
+	if(! $c)
+		return false;
+
+	$r = q("select * from attach where hash = '%s' and uid = %d limit 1",
+		dbesc($resource_id),
+		intval($channel_id)
+	);
+	if(! $r)
+		return false;
+
+	$oldstorepath = $r[0]['content'];
+	
+	if($new_folder_hash) {
+		$n = q("select * from attach where hash = '%s' and uid = %d limit 1",
+			dbesc($new_folder_hash),
+			intval($channel_id)
+		);
+		if(! $n)
+			return;
+		$newdirname = $n[0]['filename'];
+		$newstorepath = $n[0]['content'] . '/' . $resource_id;
+	}
+	else {
+		$newstorepath = 'store/' . $c['channel_address'] . '/' . $resource_id;
+	}
+
+	rename($oldstorepath,$newstorepath);
+
+	$t = q("update attach set content = '%s', folder = '%s' where id = %d",
+		dbesc($newstorepath),
+		dbesc($new_folder_hash),
+		intval($r[0]['id'])
+	);
+
+	if($r[0]['is_photo']) {
+		$t = q("update photo set album = '%s' where resource_id = '%s' and uid = %d",
+			dbesc($newdirname),
+			dbesc($resource_id),
+			intval($channel_id)
+		);
+
+		$t = q("update photo set content = '%s' where resource_id = '%s' and uid = %d and imgscale = 0",
+			dbesc($newstorepath),
+			dbesc($resource_id),
+			intval($channel_id)
+		);
+	}
+
+	return true;
+
+}
+
+

include/photos.php

@@ -588,6 +588,8 @@ function photos_album_rename($channel_id, $oldname, $newname) {
 	);
 }
 
+
+
 /**
  * @brief
  *