GValue value = {0, };
path = g_list_nth_data(selected_dives, i);
if (gtk_tree_model_get_iter(model, &iter, path)) {
gtk_tree_model_get_value(model, &iter, 0, &value);
GValue value = {0, };
path = g_list_nth_data(selected_dives, i);
if (gtk_tree_model_get_iter(model, &iter, path)) {
gtk_tree_model_get_value(model, &iter, 0, &value);