6 files changed, 33 insertions, 21 deletions

diff --git a/src/db/plugins/LazyDatabase.cxx b/src/db/plugins/LazyDatabase.cxx
index 2b576b1ee..bc52395c5 100644
--- a/src/db/plugins/LazyDatabase.cxx
+++ b/src/db/plugins/LazyDatabase.cxx
@@ -85,12 +85,13 @@ LazyDatabase::Visit(const DatabaseSelection &selection,
 
 bool
 LazyDatabase::VisitUniqueTags(const DatabaseSelection &selection,
-			      TagType tag_type,
-			      VisitString visit_string,
+			      TagType tag_type, uint32_t group_mask,
+			      VisitTag visit_tag,
 			      Error &error) const
 {
 	return EnsureOpen(error) &&
-		db->VisitUniqueTags(selection, tag_type, visit_string, error);
+		db->VisitUniqueTags(selection, tag_type, group_mask, visit_tag,
+				    error);
 }
 
 bool
diff --git a/src/db/plugins/LazyDatabase.hxx b/src/db/plugins/LazyDatabase.hxx
index 000b63a98..ae1b961d0 100644
--- a/src/db/plugins/LazyDatabase.hxx
+++ b/src/db/plugins/LazyDatabase.hxx
@@ -52,8 +52,8 @@ public:
 			   Error &error) const override;
 
 	virtual bool VisitUniqueTags(const DatabaseSelection &selection,
-				     TagType tag_type,
-				     VisitString visit_string,
+				     TagType tag_type, uint32_t group_mask,
+				     VisitTag visit_tag,
 				     Error &error) const override;
 
 	virtual bool GetStats(const DatabaseSelection &selection,
diff --git a/src/db/plugins/ProxyDatabasePlugin.cxx b/src/db/plugins/ProxyDatabasePlugin.cxx
index 0ab25005a..a3cc640cf 100644
--- a/src/db/plugins/ProxyDatabasePlugin.cxx
+++ b/src/db/plugins/ProxyDatabasePlugin.cxx
@@ -112,8 +112,8 @@ public:
 			   Error &error) const override;
 
 	virtual bool VisitUniqueTags(const DatabaseSelection &selection,
-				     TagType tag_type,
-				     VisitString visit_string,
+				     TagType tag_type, uint32_t group_mask,
+				     VisitTag visit_tag,
 				     Error &error) const override;
 
 	virtual bool GetStats(const DatabaseSelection &selection,
@@ -715,7 +715,8 @@ ProxyDatabase::Visit(const DatabaseSelection &selection,
 bool
 ProxyDatabase::VisitUniqueTags(const DatabaseSelection &selection,
 			       TagType tag_type,
-			       VisitString visit_string,
+			       gcc_unused uint32_t group_mask,
+			       VisitTag visit_tag,
 			       Error &error) const
 {
 	// TODO: eliminate the const_cast
@@ -734,6 +735,8 @@ ProxyDatabase::VisitUniqueTags(const DatabaseSelection &selection,
 	if (!SendConstraints(connection, selection))
 		return CheckError(connection, error);
 
+	// TODO: use group_mask
+
 	if (!mpd_search_commit(connection))
 		return CheckError(connection, error);
 
@@ -742,7 +745,9 @@ ProxyDatabase::VisitUniqueTags(const DatabaseSelection &selection,
 	struct mpd_pair *pair;
 	while (result &&
 	       (pair = mpd_recv_pair_tag(connection, tag_type2)) != nullptr) {
-		result = visit_string(pair->value, error);
+		TagBuilder tag;
+		tag.AddItem(tag_type, pair->value);
+		result = visit_tag(tag.Commit(), error);
 		mpd_return_pair(connection, pair);
 	}
 
diff --git a/src/db/plugins/simple/SimpleDatabasePlugin.cxx b/src/db/plugins/simple/SimpleDatabasePlugin.cxx
index 68101f564..d616c793f 100644
--- a/src/db/plugins/simple/SimpleDatabasePlugin.cxx
+++ b/src/db/plugins/simple/SimpleDatabasePlugin.cxx
@@ -334,11 +334,12 @@ SimpleDatabase::Visit(const DatabaseSelection &selection,
 
 bool
 SimpleDatabase::VisitUniqueTags(const DatabaseSelection &selection,
-				TagType tag_type,
-				VisitString visit_string,
+				TagType tag_type, uint32_t group_mask,
+				VisitTag visit_tag,
 				Error &error) const
 {
-	return ::VisitUniqueTags(*this, selection, tag_type, visit_string,
+	return ::VisitUniqueTags(*this, selection, tag_type, group_mask,
+				 visit_tag,
 				 error);
 }
 
diff --git a/src/db/plugins/simple/SimpleDatabasePlugin.hxx b/src/db/plugins/simple/SimpleDatabasePlugin.hxx
index a03969f92..e27b3d956 100644
--- a/src/db/plugins/simple/SimpleDatabasePlugin.hxx
+++ b/src/db/plugins/simple/SimpleDatabasePlugin.hxx
@@ -116,8 +116,8 @@ public:
 			   Error &error) const override;
 
 	virtual bool VisitUniqueTags(const DatabaseSelection &selection,
-				     TagType tag_type,
-				     VisitString visit_string,
+				     TagType tag_type, uint32_t group_mask,
+				     VisitTag visit_tag,
 				     Error &error) const override;
 
 	virtual bool GetStats(const DatabaseSelection &selection,
diff --git a/src/db/plugins/upnp/UpnpDatabasePlugin.cxx b/src/db/plugins/upnp/UpnpDatabasePlugin.cxx
index abc7638f8..66951f402 100644
--- a/src/db/plugins/upnp/UpnpDatabasePlugin.cxx
+++ b/src/db/plugins/upnp/UpnpDatabasePlugin.cxx
@@ -94,8 +94,8 @@ public:
 			   Error &error) const override;
 
 	virtual bool VisitUniqueTags(const DatabaseSelection &selection,
-				     TagType tag_type,
-				     VisitString visit_string,
+				     TagType tag_type, uint32_t group_mask,
+				     VisitTag visit_tag,
 				     Error &error) const override;
 
 	virtual bool GetStats(const DatabaseSelection &selection,
@@ -721,11 +721,13 @@ UpnpDatabase::Visit(const DatabaseSelection &selection,
 
 bool
 UpnpDatabase::VisitUniqueTags(const DatabaseSelection &selection,
-			      TagType tag,
-			      VisitString visit_string,
+			      TagType tag, gcc_unused uint32_t group_mask,
+			      VisitTag visit_tag,
 			      Error &error) const
 {
-	if (!visit_string)
+	// TODO: use group_mask
+
+	if (!visit_tag)
 		return true;
 
 	std::vector<ContentDirectoryService> servers;
@@ -754,9 +756,12 @@ UpnpDatabase::VisitUniqueTags(const DatabaseSelection &selection,
 		}
 	}
 
-	for (const auto& value : values)
-		if (!visit_string(value.c_str(), error))
+	for (const auto& value : values) {
+		TagBuilder builder;
+		builder.AddItem(tag, value.c_str());
+		if (!visit_tag(builder.Commit(), error))
 			return false;
+	}
 
 	return true;
 }