/sqlite3cc

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  • Committer: edam
  • Date: 2010-07-29 06:28:53 UTC
  • Revision ID: edam@waxworlds.org-20100729062853-4i2fec52m86mh724
- made basic_statement::step() protected, for use by query and command only
- moved basic_statement::operator<<() to command and query instead; one needs to accept sqlite::exec, the other doesn't
- added tests for query::operator<<()
- added code to invlaidate in-progress queries during any transaction rollbacks (currently segfaults in basic_statement::finalize())
- added new sqlite_error constructor that obtains a full error message
- implemented database::database_mutex_guard class
- swapped command's step mutex in favour of the database mutex

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Lines of Context:
test/test-main.cc
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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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        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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        // - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
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        // test query itterator
 
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        sqlite::query q2( db, "SELECT * FROM pets ORDER BY age DESC" );
 
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        for( sqlite::query::iterator i = q2.begin(); i != q2.end(); i++ ) {
 
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                if( i->index() == 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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//              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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        assert( q2.column_count() == 2 );
 
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        assert( q2.column_name( 0 ) == "name" );
 
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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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        // 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;