Implement {query,execute}_{one,value}() shortcut functions

Useful in situations where the query is know to return at most one element
(*_one) or exactly one element (*_value).

1 files changed, 5 insertions, 5 deletions

diff --git a/composite/driver.cxx b/composite/driver.cxx
index aaedf17..fc228bf 100644
--- a/composite/driver.cxx
+++ b/composite/driver.cxx
@@ -84,16 +84,16 @@ main (int argc, char* argv[])
     //
     {
       typedef odb::query<person> query;
-      typedef odb::result<person> result;
 
       transaction t (db->begin ());
 
-      result r (db->query<person> (
-                  query::name.extras.nickname == "Squeaky"));
+      auto_ptr<person> p (
+        db->query_one<person> (
+          query::name.extras.nickname == "Squeaky"));
 
-      if (!r.empty ())
+      if (p.get () != 0)
       {
-        name& n (r.begin ()->name ());
+        name& n (p->name ());
         cout << n.title () << " " << n.first () << " " << n.last () << endl;
       }