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@@ -9,102 +9,87 @@ using namespace Framework;
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// Inhalt ves structs Result aus sql.h
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void Result::destroy()
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{
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- delete[]felder;
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- delete[]values;
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+ delete[]felder;
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+ delete[]values;
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}
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// Inhalt der Datenbank Klasse aus sql.h
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// Konstruktor
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Datenbank::Datenbank( const char *user, const char *passwort, const char *dbname, const char *ip, unsigned short port )
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+ : ReferenceCounter()
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{
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- Text *txt = new Text( "user=" );
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- txt->append( user );
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- txt->append( " password=" );
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- txt->append( passwort );
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- txt->append( " dbname=" );
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- txt->append( dbname );
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- txt->append( " hostaddr=" );
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- txt->append( ip );
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- txt->append( " port=" );
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- txt->append( port );
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- conn = PQconnectdb( txt->getText() );
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- txt->release();
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- res = 0;
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- ref = 1;
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- if( PQstatus( conn ) != CONNECTION_OK )
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- {
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- PQfinish( conn );
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- conn = 0;
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- }
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- else
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- PQsetClientEncoding( conn, "WIN1251" );
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+ Text *txt = new Text( "user=" );
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+ txt->append( user );
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+ txt->append( " password=" );
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+ txt->append( passwort );
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+ txt->append( " dbname=" );
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+ txt->append( dbname );
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+ txt->append( " hostaddr=" );
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+ txt->append( ip );
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+ txt->append( " port=" );
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+ txt->append( port );
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+ conn = PQconnectdb( txt->getText() );
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+ txt->release();
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+ res = 0;
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+ if( PQstatus( conn ) != CONNECTION_OK )
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+ {
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+ PQfinish( conn );
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+ conn = 0;
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+ }
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+ else
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+ PQsetClientEncoding( conn, "WIN1251" );
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}
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// Destruktor
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Datenbank::~Datenbank()
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{
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- PQfinish( conn );
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+ PQfinish( conn );
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}
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// nicht constant
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bool Datenbank::befehl( const char *txt )
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{
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- if( res )
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- PQclear( res );
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- res = PQexec( conn, txt );
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- ExecStatusType t = PQresultStatus( res );
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- if( t == PGRES_FATAL_ERROR || t == PGRES_BAD_RESPONSE || t == PGRES_NONFATAL_ERROR )
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- {
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- std::cout << "Datenbank Error bei Query '" << txt << ";'\n" << PQerrorMessage( conn ) << "\n";
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- return 0;
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- }
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- return 1;
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+ if( res )
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+ PQclear( res );
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+ res = PQexec( conn, txt );
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+ ExecStatusType t = PQresultStatus( res );
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+ if( t == PGRES_FATAL_ERROR || t == PGRES_BAD_RESPONSE || t == PGRES_NONFATAL_ERROR )
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+ {
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+ std::cout << "Datenbank Error bei Query '" << txt << ";'\n" << PQerrorMessage( conn ) << "\n";
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+ return 0;
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+ }
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+ return 1;
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}
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// constant
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int Datenbank::getZeilenAnzahl() const // Anzahl der betroffenen zeilen
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{
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- if( res )
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- return TextZuInt( PQcmdTuples( res ), 10 );
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- return 0;
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+ if( res )
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+ return TextZuInt( PQcmdTuples( res ), 10 );
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+ return 0;
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}
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Result Datenbank::getResult() const
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{
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- Result ret;
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- ret.feldAnzahl = PQnfields( res );
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- ret.felder = new Text[ ret.feldAnzahl ];
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- for( int i = 0; i < ret.feldAnzahl; i++ )
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- ret.felder[ i ].setText( PQfname( res, i ) );
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- ret.zeilenAnzahl = PQntuples( res );
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- ret.values = new Text[ ret.feldAnzahl * ret.zeilenAnzahl ];
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- for( int i = 0; i < ret.feldAnzahl * ret.zeilenAnzahl; i++ )
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- ret.values[ i ].setText( PQgetvalue( res, i / ret.feldAnzahl, i % ret.feldAnzahl ) );
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- return ret;
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+ Result ret;
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+ ret.feldAnzahl = PQnfields( res );
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+ ret.felder = new Text[ ret.feldAnzahl ];
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+ for( int i = 0; i < ret.feldAnzahl; i++ )
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+ ret.felder[ i ].setText( PQfname( res, i ) );
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+ ret.zeilenAnzahl = PQntuples( res );
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+ ret.values = new Text[ ret.feldAnzahl * ret.zeilenAnzahl ];
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+ for( int i = 0; i < ret.feldAnzahl * ret.zeilenAnzahl; i++ )
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+ ret.values[ i ].setText( PQgetvalue( res, i / ret.feldAnzahl, i % ret.feldAnzahl ) );
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+ return ret;
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}
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Text *Datenbank::getLetzterFehler() const // gibt den letzten Fehler zurück
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{
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- Text *ret = new Text( PQerrorMessage( conn ) );
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- return ret;
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+ Text *ret = new Text( PQerrorMessage( conn ) );
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+ return ret;
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}
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bool Datenbank::istOk() const // prüft, ob die Verbindung zur Datenbank besteht
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{
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- return conn != 0;
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-}
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-
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-// Reference Counting
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-Datenbank *Datenbank::getThis()
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-{
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- ref++;
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- return this;
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-}
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-
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-Datenbank *Datenbank::release()
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-{
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- ref--;
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- if( ref == 0 )
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- delete this;
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- return 0;
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+ return conn != 0;
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}
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