fix segfault in mgSelection::enter, fix order in collections

git-svn-id: https://vdr-muggle.svn.sourceforge.net/svnroot/vdr-muggle/trunk/muggle-plugin@469 e10066b5-e1e2-0310-b819-94efdf66514b

2 files changed, 5 insertions, 2 deletions

diff --git a/mg_db.c b/mg_db.c
index cba9baf..aa84ef4 100644
--- a/mg_db.c
+++ b/mg_db.c
@@ -1012,6 +1012,8 @@ bool mgSelection::enter (unsigned int position)
 	return false;
     setPosition (position);
     position = gotoPosition();		// reload adjusted position
+    if (values.size()==0)
+	return false;
     string value = values[position];
     string id = m_ids[position];
     mgSelStrings prev;
diff --git a/mg_order.c b/mg_order.c
index cc93141..93463b5 100644
--- a/mg_order.c
+++ b/mg_order.c
@@ -625,7 +625,7 @@ operator==(const mgOrder& a, const mgOrder &b)
 const mgOrder&
 mgOrder::operator=(const mgOrder& from)
 {
-	Keys.clear();
+	clear();
     	for (unsigned int i = 0; i < from.size();i++)
     	{
         	mgKey *k = ktGenerate(from.getKeyType(i),m_db);
@@ -811,7 +811,8 @@ cleanagain:
 				goto cleanagain;
 			}
 	}
-	if (!is_unique)
+	bool IsCollection = size()==0 ? false : Keys[0]->Type()==keyCollection;
+	if (!IsCollection && !is_unique)
 	{
 		if (!album_found)
 			Keys.push_back(ktGenerate(keyAlbum,m_db));