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// file : common/session/custom/driver.cxx
// license : GNU GPL v2; see accompanying LICENSE file
// Test custom session (C++11 only).
//
#include <memory>
#include <cstddef> // std::size_t
#include <iostream>
#include <odb/tracer.hxx>
#include <odb/database.hxx>
#include <odb/session.hxx>
#include <odb/transaction.hxx>
#include <odb/details/config.hxx> // ODB_CXX11_*
#include <libcommon/common.hxx>
#include "session.hxx"
#include "test.hxx"
#include "test-odb.hxx"
#undef NDEBUG
#include <cassert>
using namespace std;
using odb::database;
using odb::transaction;
struct counting_tracer: odb::tracer
{
virtual void
execute (odb::connection&, const char*) {count++;}
size_t count;
};
static counting_tracer tracer;
struct failed {};
int
main (int argc, char* argv[])
{
try
{
unique_ptr<database> db (create_database (argc, argv));
// Simple Tech Ltd.
//
{
shared_ptr<employer> er (new employer ("Simple Tech Ltd", "ST"));
shared_ptr<employee> john (new employee ("John", "Doe", er));
shared_ptr<employee> jane (new employee ("Jane", "Doe", er));
transaction t (db->begin ());
db->persist (er);
db->persist (john);
db->persist (jane);
t.commit ();
}
// Complex Systems Inc.
//
{
shared_ptr<employer> er (new employer ("Complex Systems Inc", "CS"));
shared_ptr<employee> john (new employee ("John", "Smith", er));
shared_ptr<employee> jane (new employee ("Jane", "Smith", er));
transaction t (db->begin ());
db->persist (er);
db->persist (john);
db->persist (jane);
t.commit ();
}
{
session s;
shared_ptr<employer> st, cs;
shared_ptr<employee> ste, cse;
{
transaction t (db->begin ());
st = db->load<employer> ("Simple Tech Ltd");
#ifdef ODB_CXX11_FUNCTION_TEMPLATE_DEFAULT_ARGUMENT
ste = db->load<employee> (st->employees ()[0].object_id ());
#else
ste = db->load<employee> (st->employees ()[0].object_id<employee> ());
#endif
// Test object cache.
//
shared_ptr<employee> e (st->employees ()[0].load ());
assert (ste->employer () == st);
assert (ste == e);
t.commit ();
}
{
transaction t (db->begin ());
cs = db->load<employer> ("Complex Systems Inc");
#ifdef ODB_CXX11_FUNCTION_TEMPLATE_DEFAULT_ARGUMENT
cse = db->load<employee> (cs->employees ()[0].object_id ());
#else
cse = db->load<employee> (cs->employees ()[0].object_id<employee> ());
#endif
cs->employees ()[0].load ();
t.commit ();
}
cs->symbol ("CSI");
// Swap employees.
//
ste->employer (cs);
cse->employer (st);
st->employees ()[0] = cse;
cs->employees ()[0] = ste;
{
transaction t (db->begin ());
tracer.count = 0;
t.tracer (tracer);
s.flush (*db);
assert (tracer.count == 3);
t.commit ();
}
{
transaction t (db->begin ());
tracer.count = 0;
t.tracer (tracer);
s.flush (*db);
assert (tracer.count == 0);
t.commit ();
}
cs->symbol ("COMP");
st->symbol ("SMPL");
{
transaction t (db->begin ());
tracer.count = 0;
t.tracer (tracer);
s.flush (*db);
assert (tracer.count == 2);
t.commit ();
}
{
transaction t (db->begin ());
tracer.count = 0;
t.tracer (tracer);
s.flush (*db);
assert (tracer.count == 0);
t.commit ();
}
// Explicit update.
//
cs->symbol ("CS");
st->symbol ("ST");
{
transaction t (db->begin ());
db->update (cs);
tracer.count = 0;
t.tracer (tracer);
s.flush (*db);
assert (tracer.count == 1);
t.commit ();
}
// Rollback after update.
//
cs->symbol ("CSI");
try
{
transaction t (db->begin ());
tracer.count = 0;
t.tracer (tracer);
s.flush (*db);
assert (tracer.count == 1);
throw failed ();
t.commit ();
}
catch (const failed&)
{
transaction t (db->begin ());
tracer.count = 0;
t.tracer (tracer);
s.flush (*db);
assert (tracer.count == 1);
t.commit ();
}
}
// Test session destruction before transaction is commited.
//
{
transaction t (db->begin ());
{
session s;
shared_ptr<employer> st (db->load<employer> ("Simple Tech Ltd"));
st->symbol ("STL");
tracer.count = 0;
t.tracer (tracer);
s.flush (*db);
assert (tracer.count == 1);
}
t.commit ();
}
}
catch (const odb::exception& e)
{
cerr << e.what () << endl;
return 1;
}
}
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