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authorMax Kellermann <max@musicpd.org>2018-10-22 11:35:22 +0200
committerMax Kellermann <max@musicpd.org>2018-10-22 13:08:24 +0200
commitdb27bb76e280c69d70bc14f0b0161e89d496a3c8 (patch)
tree6efdf274058eea88b99ac92155aae1d7e83e03c6 /src/command
parent7cfe929c3692e74f4e6073960eaf0e08a9989811 (diff)
db: fix broken command "list ... group"
Grouping in the "list" command was completely broken from the start, unlike "count group". I have no idea what I have been thinking when I wrote commit ae178c77bdc47c954fd9a4b32ffc07fe6c4a8a49, but it didn't make any sense. This commit is a rewrite of the feature. For clients to be able to detect this feature, this commit also increments the protocol version.
Diffstat (limited to 'src/command')
-rw-r--r--src/command/DatabaseCommands.cxx17
1 files changed, 7 insertions, 10 deletions
diff --git a/src/command/DatabaseCommands.cxx b/src/command/DatabaseCommands.cxx
index 42f79b8e2..3f7d18324 100644
--- a/src/command/DatabaseCommands.cxx
+++ b/src/command/DatabaseCommands.cxx
@@ -191,7 +191,7 @@ handle_list(Client &client, Request args, Response &r)
}
std::unique_ptr<SongFilter> filter;
- tag_mask_t group_mask = 0;
+ TagType group = TAG_NUM_OF_ITEM_TYPES;
if (args.size == 1) {
/* for compatibility with < 0.12.0 */
@@ -206,18 +206,16 @@ handle_list(Client &client, Request args, Response &r)
args.shift()));
}
- while (args.size >= 2 &&
- StringIsEqual(args[args.size - 2], "group")) {
+ if (args.size >= 2 &&
+ StringIsEqual(args[args.size - 2], "group")) {
const char *s = args[args.size - 1];
- TagType gt = tag_name_parse_i(s);
- if (gt == TAG_NUM_OF_ITEM_TYPES) {
+ group = tag_name_parse_i(s);
+ if (group == TAG_NUM_OF_ITEM_TYPES) {
r.FormatError(ACK_ERROR_ARG,
"Unknown tag type: %s", s);
return CommandResult::ERROR;
}
- group_mask |= tag_mask_t(1) << unsigned(gt);
-
args.pop_back();
args.pop_back();
}
@@ -230,14 +228,13 @@ handle_list(Client &client, Request args, Response &r)
}
}
- if (tagType < TAG_NUM_OF_ITEM_TYPES &&
- group_mask & (tag_mask_t(1) << tagType)) {
+ if (tagType < TAG_NUM_OF_ITEM_TYPES && tagType == group) {
r.Error(ACK_ERROR_ARG, "Conflicting group");
return CommandResult::ERROR;
}
PrintUniqueTags(r, client.partition,
- tagType, group_mask, filter.get());
+ tagType, group, filter.get());
return CommandResult::OK;
}