Fix bug in id-based custom view join of polymorphic objects

See email from Mikhail.Tomilov@infotecs.ru/12-Dec-2014.

2 files changed, 25 insertions, 0 deletions

diff --git a/common/inheritance/polymorphism/driver.cxx b/common/inheritance/polymorphism/driver.cxx
index 672473c..d4509a4 100644
--- a/common/inheritance/polymorphism/driver.cxx
+++ b/common/inheritance/polymorphism/driver.cxx
@@ -968,6 +968,22 @@ main (int argc, char* argv[])
 
         t.commit ();
       }
+
+      {
+        typedef odb::result<view3> result;
+
+        transaction t (db->begin ());
+
+        {
+          result qr (db->query<view3> ());
+          result::iterator i (qr.begin ()), e (qr.end ());
+
+          assert (i != e && i->str == "abc");
+          assert (++i == e);
+        }
+
+        t.commit ();
+      }
     }
 
     // Test 5: polymorphism and optimistic concurrency.
diff --git a/common/inheritance/polymorphism/test4.hxx b/common/inheritance/polymorphism/test4.hxx
index 0bd53bd..5c4ae2f 100644
--- a/common/inheritance/polymorphism/test4.hxx
+++ b/common/inheritance/polymorphism/test4.hxx
@@ -71,6 +71,15 @@ namespace test4
     #pragma db column("min(" + base2::num + ")")
     unsigned long min_num;
   };
+
+  // Test custom join condition that uses object id. It cannot come
+  // from the base since the base table hasn't been join'ed yet.
+  //
+  #pragma db view object(base1) object(base2: base2::id == base1::id)
+  struct view3
+  {
+    std::string str;
+  };
 }
 
 #endif // TEST4_HXX