Implement nested id support

Now the 'id' specifier can optionally include the data member path
to the id inside the composite value. For example:

#pragma db id(first)
std::pair<int, int> p;

Note that one somewhat counter-intuitive aspect of this new feature
is that the whole member marked with id ('p' in the above example)
and not just the actual id member ('p.first' in the above example)
is treated as readonly.

Such nested id also cannot be automatically assigned (auto specifier).

1 files changed, 730 insertions, 0 deletions

diff --git a/common/id/composite/driver.cxx b/common/id/composite/driver.cxx
new file mode 100644
index 0000000..0df4c98
--- /dev/null
+++ b/common/id/composite/driver.cxx
@@ -0,0 +1,730 @@
+// file      : common/id/composite/driver.cxx
+// copyright : Copyright (c) 2009-2015 Code Synthesis Tools CC
+// license   : GNU GPL v2; see accompanying LICENSE file
+
+// Test composite object ids.
+//
+
+#include <memory>   // std::auto_ptr
+#include <cassert>
+#include <iostream>
+
+#include <odb/database.hxx>
+#include <odb/session.hxx>
+#include <odb/transaction.hxx>
+
+#include <common/common.hxx>
+
+#include "test.hxx"
+#include "test-odb.hxx"
+
+using namespace std;
+using namespace odb::core;
+
+int
+main (int argc, char* argv[])
+{
+  try
+  {
+    auto_ptr<database> db (create_database (argc, argv));
+
+    // Test 1.
+    //
+    {
+      using namespace test1;
+
+      object o1 (scomp ("aaa", "bbb", "ccc"), 123);
+      o1.vec.push_back (scomp ("xxx", "xxx", "xxx"));
+      o1.vec.push_back (scomp ("yyy", "yyy", "yyy"));
+
+      object o2 (scomp ("aaa", "bbb", "ccd"), 234);
+      o2.vec.push_back (scomp ("zzz", "", "zzz"));
+
+      object o3 (scomp ("baa", "bbb", "ccc"), 345);
+
+      // Persist.
+      //
+      {
+        transaction t (db->begin ());
+        db->persist (o1);
+        db->persist (o2);
+        db->persist (o3);
+        t.commit ();
+      }
+
+      // Load.
+      //
+      {
+        transaction t (db->begin ());
+        auto_ptr<object> p1 (db->load<object> (o1.id));
+        auto_ptr<object> p2 (db->load<object> (o2.id));
+        auto_ptr<object> p3 (db->load<object> (o3.id));
+        t.commit ();
+
+        assert (*p1 == o1);
+        assert (*p2 == o2);
+        assert (*p3 == o3);
+      }
+
+      // Update.
+      //
+      {
+        transaction t (db->begin ());
+        auto_ptr<object> p (db->load<object> (o1.id));
+        p->num++;
+        db->update (*p);
+        t.commit ();
+      }
+
+      {
+        transaction t (db->begin ());
+        auto_ptr<object> p (db->load<object> (o1.id));
+        t.commit ();
+
+        assert (p->num == o1.num + 1);
+      }
+
+      // Erase.
+      //
+      {
+        transaction t (db->begin ());
+        db->erase<object> (o1.id);
+        t.commit ();
+      }
+
+      {
+        transaction t (db->begin ());
+        auto_ptr<object> p (db->find<object> (o1.id));
+        assert (p.get () == 0);
+        t.commit ();
+      }
+    }
+
+    // Test 2.
+    //
+    {
+      using namespace test2;
+
+      object2 o2 (ncomp (2, 0, 1));
+      o2.o1 = new object1 (scomp ("o1", "o2", "aaa"));
+
+      object3 o3 (ncomp (3, 0, 1));
+      o3.o1.push_back (new object1 (scomp ("o1", "o3", "aaa")));
+      o3.o1.push_back (new object1 (scomp ("o1", "o3", "bbb")));
+
+      object4 o4 (ncomp (4, 0, 1));
+      o4.c.o2 = new object2 (ncomp (2, 4, 1));
+      o4.c.o2->o1 = new object1 (scomp ("o1", "o2", "ccc"));
+
+      // Persist.
+      //
+      {
+        transaction t (db->begin ());
+        db->persist (o2.o1);
+        db->persist (o2);
+        db->persist (o3.o1[0]);
+        db->persist (o3.o1[1]);
+        db->persist (o3);
+        db->persist (o4.c.o2->o1);
+        db->persist (o4.c.o2);
+        db->persist (o4);
+        t.commit ();
+      }
+
+      // Load.
+      //
+      {
+        transaction t (db->begin ());
+        auto_ptr<object2> p2 (db->load<object2> (o2.id));
+        auto_ptr<object3> p3 (db->load<object3> (o3.id));
+        auto_ptr<object4> p4 (db->load<object4> (o4.id));
+        t.commit ();
+
+        assert (p2->o1->id == o2.o1->id);
+        assert (p3->o1.size () == o3.o1.size ());
+        assert (p3->o1[0]->id == o3.o1[0]->id);
+        assert (p3->o1[1]->id == o3.o1[1]->id);
+        assert (p4->c.o2->id == o4.c.o2->id);
+        assert (p4->c.o2->o1->id == o4.c.o2->o1->id);
+      }
+
+      // Update.
+      //
+      {
+        scomp id2, id3;
+
+        {
+          transaction t (db->begin ());
+
+          auto_ptr<object2> p2 (db->load<object2> (o2.id));
+          delete p2->o1;
+          p2->o1 = new object1 (scomp ("o1", "o2", "bbb"));
+          id2 = db->persist (p2->o1);
+          db->update (*p2);
+
+          auto_ptr<object3> p3 (db->load<object3> (o3.id));
+          delete p3->o1.back ();
+          p3->o1.pop_back ();
+          p3->o1.push_back (new object1 (scomp ("o1", "o3", "ccc")));
+          id3 = db->persist (p3->o1.back ());
+          db->update (*p3);
+
+          t.commit ();
+        }
+
+        {
+          transaction t (db->begin ());
+          auto_ptr<object2> p2 (db->load<object2> (o2.id));
+          auto_ptr<object3> p3 (db->load<object3> (o3.id));
+          t.commit ();
+
+          assert (p2->o1->id == id2);
+          assert (p3->o1.back ()->id == id3);
+        }
+      }
+
+      // Query.
+      //
+      {
+        {
+          typedef odb::query<object2> query;
+          typedef odb::result<object2> result;
+
+          transaction t (db->begin ());
+
+          {
+            result r (db->query<object2> (query::o1->id.str3 == "bbb"));
+            result::iterator i (r.begin ());
+            assert (i != r.end ());
+            assert (i->id == o2.id);
+            assert (++i == r.end ());
+          }
+
+          {
+            // As id (dual interface).
+            //
+            result r (db->query<object2> (query::o1.str3 == "bbb"));
+            result::iterator i (r.begin ());
+            assert (i != r.end ());
+            assert (i->id == o2.id);
+            assert (++i == r.end ());
+          }
+
+          t.commit ();
+        }
+
+        // Second level composite object pointer.
+        //
+        {
+          typedef odb::query<object4> query;
+          typedef odb::result<object4> result;
+
+          transaction t (db->begin ());
+
+          result r (db->query<object4> (query::c.o2->o1.str3 == "ccc"));
+          result::iterator i (r.begin ());
+          assert (i != r.end ());
+          assert (i->id == o4.id);
+          assert (++i == r.end ());
+
+          t.commit ();
+        }
+      }
+
+      // View.
+      //
+      {
+        transaction t (db->begin ());
+
+        {
+          typedef odb::query<view2> query;
+          typedef odb::result<view2> result;
+
+          result r (db->query<view2> (query::object2::id.num2 == 0));
+          result::iterator i (r.begin ());
+          assert (i != r.end ());
+          assert (i->num == 1 && i->str == "bbb");
+          assert (++i == r.end ());
+        }
+
+        {
+          typedef odb::query<view3> query;
+          typedef odb::result<view3> result;
+
+          result r (db->query<view3> ((query::object3::id.num2 == 0) +
+                                      "ORDER BY" + query::object1::id.str3));
+          result::iterator i (r.begin ());
+          assert (i != r.end ());
+          assert (i->num == 1 && i->str == "aaa");
+          assert (++i != r.end ());
+          assert (i->num == 1 && i->str == "ccc");
+          assert (++i == r.end ());
+        }
+
+        {
+          typedef odb::query<view4> query;
+          typedef odb::result<view4> result;
+
+          result r (db->query<view4> (query::object4::id.num2 == 0));
+          result::iterator i (r.begin ());
+          assert (i != r.end ());
+          assert (i->num4 == 1 && i->num2 == 1 && i->str == "ccc");
+          assert (++i == r.end ());
+        }
+
+        t.commit ();
+      }
+    }
+
+    // Test 3.
+    //
+    {
+      using namespace test3;
+
+      object2 o2 (ncomp (2, 0, 1));
+      o2.o1 = new object1 (scomp ("o1", "o2", "aaa"));
+      o2.o1->o2 = &o2;
+
+      // Persist.
+      //
+      {
+        transaction t (db->begin ());
+        db->persist (o2.o1);
+        db->persist (o2);
+        t.commit ();
+      }
+
+      // Load.
+      //
+      {
+        session s;
+        transaction t (db->begin ());
+        auto_ptr<object2> p2 (db->load<object2> (o2.id));
+        t.commit ();
+
+        assert (p2->o1->o2->id == o2.id);
+      }
+
+      // Query.
+      //
+      {
+        typedef odb::query<object1> query;
+        typedef odb::result<object1> result;
+
+        transaction t (db->begin ());
+
+        {
+          session s;
+
+          result r (db->query<object1> (query::o2->id.num2 == 0));
+          result::iterator i (r.begin ());
+          assert (i != r.end ());
+          assert (i->id == o2.o1->id);
+
+          i->o2->o1 = 0;
+          delete i->o2;
+
+          assert (++i == r.end ());
+        }
+
+        t.commit ();
+      }
+
+      // View.
+      //
+      {
+        typedef odb::query<view> query;
+        typedef odb::result<view> result;
+
+        transaction t (db->begin ());
+
+        result r (db->query<view> (query::object1::id.str2 == "o2"));
+        result::iterator i (r.begin ());
+        assert (i != r.end ());
+        assert (i->num == 1 && i->str == "aaa");
+        assert (++i == r.end ());
+
+        t.commit ();
+      }
+    }
+
+    // Test 4.
+    //
+    {
+      using namespace test4;
+
+      object2 o2 (ncomp (2, 0, 1));
+
+      o2.o1.push_back (new object1 (scomp ("o1", "o2", "aaa")));
+      o2.o1.back ()->o2 = &o2;
+
+      o2.o1.push_back (new object1 (scomp ("o1", "o2", "bbb")));
+      o2.o1.back ()->o2 = &o2;
+
+      // Persist.
+      //
+      {
+        transaction t (db->begin ());
+        db->persist (o2.o1[0]);
+        db->persist (o2.o1[1]);
+        db->persist (o2);
+        t.commit ();
+      }
+
+      // Load.
+      //
+      {
+        session s;
+        transaction t (db->begin ());
+        auto_ptr<object2> p2 (db->load<object2> (o2.id));
+        t.commit ();
+
+        assert (p2->o1.size () == 2);
+        assert (p2->o1[0]->o2->id == o2.id);
+        assert (p2->o1[1]->o2->id == o2.id);
+      }
+
+      // Query.
+      //
+      {
+        typedef odb::query<object1> query;
+        typedef odb::result<object1> result;
+
+        transaction t (db->begin ());
+
+        {
+          session s;
+
+          result r (db->query<object1> (query::o2->id.num2 == 0));
+          result::iterator i (r.begin ());
+          assert (i != r.end ());
+          assert (i->id == o2.o1[0]->id);
+          i->o2->o1.clear ();
+
+          assert (++i != r.end ());
+          assert (i->id == o2.o1[1]->id);
+
+          i->o2->o1.clear ();
+          delete i->o2;
+
+          assert (++i == r.end ());
+        }
+
+        t.commit ();
+      }
+
+      // View.
+      //
+      {
+        typedef odb::query<view> query;
+        typedef odb::result<view> result;
+
+        transaction t (db->begin ());
+
+        result r (db->query<view> (query::object1::id.str3 == "bbb"));
+        result::iterator i (r.begin ());
+        assert (i != r.end ());
+        assert (i->num == 1 && i->str == "bbb");
+        assert (++i == r.end ());
+
+        t.commit ();
+      }
+    }
+
+    // Test 5.
+    //
+    {
+      using namespace test5;
+
+      object2 o2 (ncomp (2, 0, 1));
+
+      o2.o1.push_back (new object1 (scomp ("o1", "o2", "aaa")));
+      o2.o1.back ()->o2 = &o2;
+
+      o2.o1.push_back (new object1 (scomp ("o1", "o2", "bbb")));
+      o2.o1.back ()->o2 = &o2;
+
+      // Persist.
+      //
+      {
+        transaction t (db->begin ());
+        db->persist (o2.o1[0]);
+        db->persist (o2.o1[1]);
+        db->persist (o2);
+        t.commit ();
+      }
+
+      // Load.
+      //
+      {
+        session s;
+        transaction t (db->begin ());
+        auto_ptr<object2> p2 (db->load<object2> (o2.id));
+        t.commit ();
+
+        assert (p2->o1.size () == 2);
+
+        assert (p2->o1[0]->id == o2.o1[0]->id);
+        assert (p2->o1[0]->o2->id == o2.id);
+
+        assert (p2->o1[1]->id == o2.o1[1]->id);
+        assert (p2->o1[1]->o2->id == o2.id);
+      }
+
+      // View.
+      //
+      {
+        typedef odb::query<view> query;
+        typedef odb::result<view> result;
+
+        transaction t (db->begin ());
+
+        result r (db->query<view> ((query::object2::id.num2 == 0) +
+                                   "ORDER BY" + query::object1::id.str3));
+        result::iterator i (r.begin ());
+        assert (i != r.end ());
+        assert (i->num == 1 && i->str == "aaa");
+        assert (++i != r.end ());
+        assert (i->num == 1 && i->str == "bbb");
+        assert (++i == r.end ());
+
+        t.commit ();
+      }
+    }
+
+    // Test 6.
+    //
+    {
+      using namespace test6;
+
+      object2 o2 (ncomp (2, 0, 1));
+
+      o2.o1.push_back (new object1 (scomp ("o1", "o2", "aaa")));
+      o2.o1.back ()->o2.push_back (&o2);
+
+      o2.o1.push_back (new object1 (scomp ("o1", "o2", "bbb")));
+      o2.o1.back ()->o2.push_back (&o2);
+
+      // Persist.
+      //
+      {
+        transaction t (db->begin ());
+        db->persist (o2.o1[0]);
+        db->persist (o2.o1[1]);
+        db->persist (o2);
+        t.commit ();
+      }
+
+      // Load.
+      //
+      {
+        session s;
+        transaction t (db->begin ());
+        auto_ptr<object2> p2 (db->load<object2> (o2.id));
+        t.commit ();
+
+        assert (p2->o1.size () == 2);
+
+        assert (p2->o1[0]->id == o2.o1[0]->id);
+        assert (p2->o1[0]->o2[0]->id == o2.id);
+
+        assert (p2->o1[1]->id == o2.o1[1]->id);
+        assert (p2->o1[1]->o2[0]->id == o2.id);
+      }
+
+      // View.
+      //
+      {
+        typedef odb::query<view> query;
+        typedef odb::result<view> result;
+
+        transaction t (db->begin ());
+
+        result r (db->query<view> ((query::object2::id.num2 == 0) +
+                                   "ORDER BY" + query::object1::id.str3));
+        result::iterator i (r.begin ());
+        assert (i != r.end ());
+        assert (i->num == 1 && i->str == "aaa");
+        assert (++i != r.end ());
+        assert (i->num == 1 && i->str == "bbb");
+        assert (++i == r.end ());
+
+        t.commit ();
+      }
+    }
+
+    // Test 7.
+    //
+    {
+      using namespace test7;
+
+      object o (scomp ("aaa", "bbb", "ccc"), 123);
+
+      // Persist.
+      //
+      {
+        transaction t (db->begin ());
+        db->persist (o);
+        t.commit ();
+      }
+
+      // Load.
+      //
+      {
+        transaction t (db->begin ());
+        auto_ptr<object> p (db->load<object> (o.id));
+        t.commit ();
+
+        assert (*p == o);
+      }
+
+      // Update.
+      //
+      {
+        transaction t (db->begin ());
+        auto_ptr<object> p (db->load<object> (o.id));
+        p->num++;
+        db->update (*p);
+
+        try
+        {
+          db->update (o);
+          assert (false);
+        }
+        catch (const object_changed&)
+        {
+        }
+
+        t.commit ();
+      }
+
+      {
+        transaction t (db->begin ());
+        auto_ptr<object> p (db->load<object> (o.id));
+        t.commit ();
+
+        assert (p->num == o.num + 1);
+      }
+
+      // Erase.
+      //
+      {
+        transaction t (db->begin ());
+
+        try
+        {
+          db->update (o);
+          assert (false);
+        }
+        catch (const object_changed&)
+        {
+        }
+
+        t.commit ();
+      }
+    }
+
+    // Test 8.
+    //
+    {
+      using namespace test8;
+
+      object2 o2a, o2b;
+      object3 o3;
+
+      o2b.o1 = new object1 (scomp ("222", "aaa", "bbb"), 123);
+      o3.o1.push_back (0);
+      o3.o1.push_back (new object1 (scomp ("333", "aaa", "bbb"), 234));
+
+      // Persist.
+      //
+      {
+        transaction t (db->begin ());
+        db->persist (o2a);
+        db->persist (o2b);
+        db->persist (o2b.o1);
+        db->persist (o3);
+        db->persist (o3.o1[1]);
+        t.commit ();
+      }
+
+      // Load.
+      //
+      {
+        transaction t (db->begin ());
+        auto_ptr<object2> p2a (db->load<object2> (o2a.id));
+        auto_ptr<object2> p2b (db->load<object2> (o2b.id));
+        auto_ptr<object3> p3 (db->load<object3> (o3.id));
+        t.commit ();
+
+        assert (p2a->o1 == 0);
+        assert (p2b->o1 != 0 && *p2b->o1 == *o2b.o1);
+        assert (p3->o1[0] == 0);
+        assert (p3->o1[1] != 0 && *p3->o1[1] == *o3.o1[1]);
+      }
+
+      // Update.
+      //
+      {
+        object1* o1 (o3.o1[1]);
+
+        o3.o1.clear ();
+        o3.o1.push_back (o2b.o1);
+        o3.o1.push_back (0);
+
+        o2a.o1 = o1;
+        o2b.o1 = 0;
+
+        transaction t (db->begin ());
+        db->update (o2a);
+        db->update (o2b);
+        db->update (o3);
+        t.commit ();
+      }
+
+      {
+        transaction t (db->begin ());
+        auto_ptr<object2> p2a (db->load<object2> (o2a.id));
+        auto_ptr<object2> p2b (db->load<object2> (o2b.id));
+        auto_ptr<object3> p3 (db->load<object3> (o3.id));
+        t.commit ();
+
+        assert (p2a->o1 != 0 && *p2a->o1 == *o2a.o1);
+        assert (p2b->o1 == 0);
+        assert (p3->o1[0] != 0 && *p3->o1[0] == *o3.o1[0]);
+        assert (p3->o1[1] == 0);
+      }
+    }
+
+    // Test 9.
+    {
+      using namespace test9;
+
+      object o (123, "abc");
+      o.v.push_back (123);
+
+      // persist
+      //
+      {
+        transaction t (db->begin ());
+        db->persist (o);
+        t.commit ();
+      }
+
+      // load & check
+      //
+      {
+        transaction t (db->begin ());
+        result<object> r (db->query<object> ());
+        result<object>::iterator i (r.begin ());
+        assert (i != r.end () && o == *i && ++i == r.end ());
+        t.commit ();
+      }
+    }
+  }
+  catch (const odb::exception& e)
+  {
+    cerr << e.what () << endl;
+    return 1;
+  }
+}