Use bindvalue in DatabaseTableView

src/database.h

@@ -42,6 +42,7 @@ public:
     void reindex(QProgressDialog *progress);
     QStringList getFitsKeywords();
     QVector<SkyObject> getObjects(double minRa, double maxRa, double minDec, double maxDec);
+    const QSqlDatabase& db() const;
 protected:
     bool indexDir2(const QDir &dir, QProgressDialog *progress, QStringList &scannedDirs);
     bool indexFile(const QFileInfo &file);