Fetch more data on demand

We skip values we've already seen and only retrieve the new ones.
This currently only properly works in a non-live query and we don't
give the model any feedback when we can't fetch more data anymore.

However, it generally works and we get the desired effect.

1 files changed, 4 insertions, 0 deletions

diff --git a/common/typeindex.cpp b/common/typeindex.cpp
index 3ee2492..ddf5df5 100644
--- a/common/typeindex.cpp
+++ b/common/typeindex.cpp
@@ -36,6 +36,10 @@ static QByteArray getByteArray(const QVariant &value)
 
 static QByteArray toSortableByteArray(const QDateTime &date)
 {
+    //Sort invalid last
+    if (!date.isValid()) {
+        return QByteArray::number(std::numeric_limits<unsigned int>::max());
+    }
     return QByteArray::number(std::numeric_limits<unsigned int>::max() - date.toTime_t());
 }