/sqlite3cc

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  • Committer: edam
  • Date: 2010-07-29 20:56:19 UTC
  • Revision ID: edam@waxworlds.org-20100729205619-a9yo4uzu647nvnsj
- renamed database to connection to better identify what it is (would database_connection be better though?)
- moved basic_statement and basic_transaction to sqlite::detail
- made sqlite::threadsafe() return the threading mode int, not a bool
- renamed row::index() to row_number() so it isn't confused with column index
- added typedef for deferred_transaction
- added early rollback method to transaction_guard
- allowed transaction_guard::~transaction_guard() to throw exceptions, since when it needs to, we're really screwed anyway
- bugfix: query::reset() didn't reset the internal row counter
- added query::num_results()
- added docs/design-notes
- reimplemented query::iterator so that increment() (which performs a step() on the query) now caches the returned row to be returned during dereference() (previously it stashed details and returned new row!?)
- bugfix: resetting active queries during rollbacks would hang!

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Lines of Context:
test/test-main.cc
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                boost::filesystem::remove( DBFILE );
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        // open database
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        sqlite::database db( DBFILE );
 
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        sqlite::connection db( DBFILE );
 
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        std::cout << "SQLite threading mode: " << sqlite::threadsafe() << "\n";
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        // - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
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        sqlite::command c7( db, "INSERT INTO pets VALUES( :foo, :bar )" );
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        c7.bind( ":foo", "foocat" ); c7.bind( ":bar", 22 ); c7.exec();
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        // test basic_statement binding via stream operator
 
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        // test command binding via stream operator
 
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        sqlite::command( db, "INSERT INTO pets VALUES( ?, ? )" ) <<
 
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                "tessa" << 16 << sqlite::exec;
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        sqlite::command c4( db, "INSERT INTO pets VALUES( ?, ? )" );
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        c4 << "tessa" << 16 << sqlite::exec;
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        sqlite::command( db, "INSERT INTO pets VALUES( ?, ? )" ) <<
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                sqlite::null << sqlite::null <<
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                sqlite::set_index( 1 ) << "tamara" << sqlite::exec;
 
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        c4 << sqlite::null << sqlite::null << sqlite::set_index( 1 ) <<
 
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                "tamara" << sqlite::exec;
 
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        assert( c4.changes() == 1 );
 
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        // test query binding via stream operator
 
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        sqlite::query( db, "SELECT * FROM pets WHERE name = ? OR age = ?" )
 
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                << "foo" << 16;
 
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        sqlite::query( db, "SELECT * FROM pets WHERE name = ? OR name = ? OR "
 
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                "name = ? OR name = ?" ) << "foo" << sqlite::null << sqlite::null
 
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                << sqlite::set_index( 1 ) << "bar" << "baz";
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        // - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
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        sqlite::query q1( db, "SELECT age, age + 3, name "
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                "FROM pets WHERE NOT age IS NULL "
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                "ORDER BY age ASC" );
 
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        // test column count and names
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        assert( q1.column_count() == 3 );
 
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        assert( q1.column_name( 2 ) == "name" );
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        // test rows
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        unsigned int age;
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        std::string name;
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        q1.step().column( 0, age ); assert( age == 12 );
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        q1.step().column( 2, name ); assert( name == "mopti" );
 
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        name = q1.step().column< std::string >( 2 ); assert( name == "mopti" );
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        // test row stream operator
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        sqlite::row r1 = q1.step();
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        // test NULL value handling
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        assert( row.column_type( 2 ) == SQLITE_NULL );
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        row.column( 2, age ); assert( age == 0 );
 
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        age = row.column< unsigned int >( 2 ); assert( age == 0 );
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        row.column( 2, name ); assert( name == "" );
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        // test end of results
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        assert( !q1.step() );
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        // test num results
 
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        sqlite::query q3( db, "SELECT name FROM pets WHERE age = 16" );
 
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        assert( q3.num_results() == 2 );
 
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        // - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
 
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        // test query iterator
 
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        sqlite::query q2( db, "SELECT * FROM pets ORDER BY age DESC" );
 
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        sqlite::query::iterator i1 = q2.begin();
 
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        assert( i1 != q2.end() );
 
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        // test resetting iterators
 
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        unsigned int count = 0;
 
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        for( sqlite::query::iterator i = q2.begin(); i != q2.end(); i++ )
 
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        {
 
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                // test iterator dereferencing and row numbers
 
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                assert( count++ == i->row_number() );
 
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                if( i->row_number() == 3 )
 
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                        assert( i->column< std::string >( 0 ) == "tessa" &&
 
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                                i->column< unsigned int >( 1 ) == 16 );
 
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        }
 
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//      for( sqlite::query::iterator i = q2.begin(); i != q2.end(); i++ ) {
 
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//              for( unsigned int a = 0; a < q2.column_count(); a++ )
 
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//                      std::cout << q2.column_name( a ) << "[" <<
 
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//                      i->column< std::string >( a ) << "] ";
 
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//              std::cout << "\n";
 
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//      }
 
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        // - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
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        // test transactions
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        {       sqlite::transaction_guard< > t1( db ); }
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        {       sqlite::transaction_guard< sqlite::exclusive_transaction > t1( db ); }
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        {       sqlite::transaction_guard< sqlite::recursive_transaction > t1( db );
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                sqlite::transaction_guard< sqlite::recursive_transaction > t2( db ); }
 
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        {
 
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                sqlite::transaction_guard< sqlite::deferred_tranaction > t1( db );
 
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        }
 
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        {
 
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                sqlite::transaction_guard< sqlite::immediate_transaction > t1( db );
 
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        }
 
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        {
 
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                sqlite::transaction_guard< sqlite::exclusive_transaction > t1( db );
 
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        }
 
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        {
 
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                sqlite::transaction_guard< sqlite::recursive_transaction > t1( db );
 
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                sqlite::transaction_guard< sqlite::recursive_transaction > t2( db );
 
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        }
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        // test transaction guard rollback
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        {
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        // text recursive transactions
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        {
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                sqlite::transaction_guard< sqlite::recursive_transaction > t1( db );
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                db.exec( "UPDATE pets SET age = 99" );
 
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                db.exec( "UPDATE pets SET age = 66" );
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                {
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                        sqlite::transaction_guard< sqlite::recursive_transaction > t2( db );
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                }
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                sqlite::query( db, "SELECT age FROM pets ORDER BY age DESC LIMIT 1" )
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                        .step() >> age; assert( age == 99 );
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                t1.commit();
 
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                        .step() >> age; assert( age == 66 );
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        }
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        sqlite::query( db, "SELECT age FROM pets ORDER BY age DESC LIMIT 1" )
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                .step() >> age; assert( age == 99 );
 
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                .step() >> age; assert( age == 123 );
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        // ok
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        return 0;
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}