From ae6efed243e2ba2a611014707368de6a86d74940 Mon Sep 17 00:00:00 2001
From: Boris Kolpackov <boris@codesynthesis.com>
Date: Mon, 15 Jun 2015 13:22:36 +0200
Subject: Support for inverse on points_to

---
 common/inverse/driver.cxx | 79 +++++++++++++++++++++++++++++++++++++++++++++++
 common/inverse/test.hxx   | 79 +++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 158 insertions(+)

diff --git a/common/inverse/driver.cxx b/common/inverse/driver.cxx
index a4a0fc8..ed02509 100644
--- a/common/inverse/driver.cxx
+++ b/common/inverse/driver.cxx
@@ -325,6 +325,85 @@ main (int argc, char* argv[])
       }
     }
 #endif
+
+    // Test inverse based on points_to.
+    //
+    {
+      using namespace test3;
+
+      {
+        obj1 o1 (1, 2);
+        o1.o2 = new obj2;
+
+        {
+          transaction t (db->begin ());
+
+          o1.o2->o1 = db->persist (o1);
+          db->persist (o1.o2);
+
+          t.commit ();
+        }
+
+        {
+          transaction t (db->begin ());
+
+          auto_ptr<obj1> p (db->load<obj1> (o1.id));
+          assert (p->o2->id == o1.o2->id);
+
+          t.commit ();
+        }
+
+        {
+          typedef odb::query<obj1> query;
+
+          transaction t (db->begin ());
+
+          auto_ptr<obj1> p (db->query_one<obj1> (query::o2->o1.i == o1.id.i &&
+                                                 query::o2->o1.j == o1.id.j));
+          assert (p->o2->id == o1.o2->id);
+
+          t.commit ();
+        }
+      }
+
+      {
+        obj3 o3;
+        o3.o4.push_back (new obj4);
+        o3.o4.push_back (new obj4);
+
+        {
+          transaction t (db->begin ());
+
+          o3.o4[0]->o3 = o3.o4[1]->o3 = db->persist (o3);
+          db->persist (o3.o4[0]);
+          db->persist (o3.o4[1]);
+
+          t.commit ();
+        }
+
+        {
+          transaction t (db->begin ());
+
+          auto_ptr<obj3> p (db->load<obj3> (o3.id));
+          assert (p->o4[0]->id == o3.o4[0]->id);
+          assert (p->o4[1]->id == o3.o4[1]->id);
+
+          t.commit ();
+        }
+
+        {
+          typedef odb::query<obj3> query;
+
+          transaction t (db->begin ());
+
+          auto_ptr<obj3> p (db->query_one<obj3> (query::id == o3.id));
+          assert (p->o4[0]->id == o3.o4[0]->id);
+          assert (p->o4[1]->id == o3.o4[1]->id);
+
+          t.commit ();
+        }
+      }
+    }
   }
   catch (const odb::exception& e)
   {
diff --git a/common/inverse/test.hxx b/common/inverse/test.hxx
index a245084..52a525d 100644
--- a/common/inverse/test.hxx
+++ b/common/inverse/test.hxx
@@ -232,4 +232,83 @@ namespace test2
 }
 #endif
 
+// Test inverse based on points_to.
+//
+#pragma db namespace table("t3_")
+namespace test3
+{
+  // Inverse pointer.
+  //
+  #pragma db value
+  struct comp
+  {
+    int i;
+    int j;
+  };
+
+  inline bool
+  operator< (comp x, comp y) {return x.i < y.i || (x.i == y.i && x.j < y.j);}
+
+  struct obj2;
+
+  #pragma db object
+  struct obj1
+  {
+    #pragma db id
+    comp id;
+
+    #pragma db inverse(o1)
+    obj2* o2;
+
+    obj1 (int i = 0, int j = 0): o2 (0) {id.i = i; id.j = j;}
+    ~obj1 ();
+  };
+
+  #pragma db object
+  struct obj2
+  {
+    #pragma db id auto
+    int id;
+
+    #pragma db points_to(obj1) on_delete(cascade)
+    comp o1;
+  };
+
+  inline obj1::
+  ~obj1 () {delete o2;}
+
+  // Inverse container of pointers.
+  //
+  struct obj4;
+
+  #pragma db object
+  struct obj3
+  {
+    #pragma db id auto
+    int id;
+
+    #pragma db inverse(o3)
+    std::vector<obj4*> o4;
+
+    ~obj3 ();
+  };
+
+  #pragma db object
+  struct obj4
+  {
+    #pragma db id auto
+    int id;
+
+    #pragma db points_to(obj3)
+    int o3;
+  };
+
+  inline obj3::
+  ~obj3 ()
+  {
+    for (std::vector<obj4*>::iterator i (o4.begin ()); i != o4.end (); ++i)
+      delete *i;
+  }
+};
+
 #endif // TEST_HXX
-- 
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