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// file : common/erase-query/driver.cxx
// license : GNU GPL v2; see accompanying LICENSE file
// Test query-based erase.
//
#include <memory> // std::unique_ptr
#include <iostream>
#include <odb/database.hxx>
#include <odb/transaction.hxx>
#include <libcommon/common.hxx>
#include "test.hxx"
#include "test-odb.hxx"
#undef NDEBUG
#include <cassert>
using namespace std;
using namespace odb::core;
void
persist (database& db)
{
object o1 (1);
object o2 (2);
object o3 (3);
object o4 (4);
transaction t (db.begin ());
db.persist (o1);
db.persist (o2);
db.persist (o3);
db.persist (o4);
t.commit ();
}
int
main (int argc, char* argv[])
{
try
{
typedef odb::query<object> query;
unique_ptr<database> db (create_database (argc, argv));
// erase_query()
//
persist (*db);
{
transaction t (db->begin ());
assert (db->erase_query<object> () == 4);
t.commit ();
}
// erase_query(const char*)
//
persist (*db);
{
transaction t (db->begin ());
if (db->id () != odb::id_oracle)
assert (db->erase_query<object> (
"erase_query_object.id < 3") == 2);
else
assert (db->erase_query<object> (
"\"erase_query_object\".\"id\" < 3") == 2);
db->erase_query<object> ();
t.commit ();
}
// erase_query(query)
//
persist (*db);
{
transaction t (db->begin ());
assert (db->erase_query<object> (query::id == 2 || query::id == 4) == 2);
db->erase_query<object> ();
t.commit ();
}
// Test predicates involving object pointers (DELETE JOIN).
//
/*
{
object o11 (1);
object o12 (2);
object o13 (3);
object2 o2;
o11.o2 = &o2;
o2.num = 123;
o12.o1 = &o13;
o13.num = 123;
transaction t (db->begin ());
db->persist (o2);
db->persist (o13);
db->persist (o12);
db->persist (o11);
t.commit ();
}
{
transaction t (db->begin ());
assert (db->erase_query<object> (query::o1::num == 123) == 1);
assert (db->erase_query<object> (query::o2::num == 123) == 1);
db->erase_query<object> ();
t.commit ();
}
*/
// For now we can only do column-based tests, like is_null().
//
{
object o11 (1);
object o12 (2);
object o13 (3);
object2 o2;
o12.o2 = &o2;
transaction t (db->begin ());
db->persist (o2);
db->persist (o13);
db->persist (o12);
db->persist (o11);
t.commit ();
}
{
transaction t (db->begin ());
assert (db->erase_query<object> (query::o2.is_null ()) == 2);
db->erase_query<object> ();
t.commit ();
}
// Make sure container data is deleted.
//
{
object o (1);
o.v.push_back (1);
o.v.push_back (2);
o.v.push_back (3);
transaction t (db->begin ());
db->persist (o);
t.commit ();
}
{
transaction t (db->begin ());
assert (db->erase_query<object> () == 1);
t.commit ();
}
{
transaction t (db->begin ());
if (db->id () != odb::id_oracle)
assert (db->execute ("SELECT * FROM erase_query_object_v "
"WHERE object_id = 1") == 0);
else
assert (db->execute ("SELECT * FROM \"erase_query_object_v\" "
"WHERE \"object_id\" = 1") == 0);
t.commit ();
}
}
catch (const odb::exception& e)
{
cerr << e.what () << endl;
return 1;
}
}
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