db/Interface: CollectUniqueTags() allows multiple "groups"

Instead of passing tag and group, pass an array of tags. To support a nested return value, return a nested std::map of std::maps. Each key specifies the tag value, and each value may be another nesting level. Closes https://github.com/MusicPlayerDaemon/MPD/issues/408
2018-11-19 11:17:25 +01:00
parent 923c1b6220
commit 1eae9339f2
12 changed files with 166 additions and 123 deletions
--- a/2
+++ b/2
@@ -1,4 +1,6 @@
 ver 0.21.11 (not yet released)
+* protocol
+  - fix "list" with multiple "group" levels

 ver 0.21.10 (2019/06/05)
 * decoder