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fix #1007
git-svn-id: http://svn.osgeo.org/qgis/trunk@8267 c8812cc2-4d05-0410-92ff-de0c093fc19c
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jef committed Mar 25, 2008
1 parent 698d693 commit 9893f4af87e8710bd93eb46175a15197925d0d16
Showing with 28 additions and 12 deletions.
  1. +28 −12 src/providers/postgres/qgspostgresprovider.cpp
@@ -2116,6 +2116,19 @@ bool QgsPostgresProvider::changeGeometryValues(QgsGeometryMap & geometry_map)
// Start the PostGIS transaction
PQexecNR(connection,QString("BEGIN").toUtf8());

QString update = QString("UPDATE %1 SET %2=GeomFromWKB($1%3,%4) WHERE %5=$2")
.arg( mSchemaTableName )
.arg( quotedIdentifier(geometryColumn) )
.arg( useWkbHex ? "" : "::bytea" )
.arg( srid )
.arg( quotedIdentifier(primaryKey) );

PGresult *stmt = PQprepare(connection, "updatefeatures", update.toUtf8(), 2, NULL);
if(stmt==0 || PQresultStatus(stmt)==PGRES_FATAL_ERROR)
throw PGException(stmt);

PQclear(stmt);

for(QgsGeometryMap::iterator iter = geometry_map.begin();
iter != geometry_map.end();
++iter)
@@ -2127,29 +2140,32 @@ bool QgsPostgresProvider::changeGeometryValues(QgsGeometryMap & geometry_map)
{
QgsDebugMsg("iterating over feature id " + QString::number(iter.key()));

QString sql = QString("UPDATE %1 SET %2=GeomFromWKB('")
.arg( mSchemaTableName )
.arg( quotedIdentifier(geometryColumn) );
appendGeomString(&*iter, sql);
sql += QString("'%1,%2) WHERE %3=%4")
.arg( useWkbHex ? "::bytea" : "" )
.arg( srid )
.arg( quotedIdentifier(primaryKey) )
.arg( iter.key() );
QString geomParam;
appendGeomString(&*iter, geomParam);

QgsDebugMsg("Updating with: " + sql);
QList<QByteArray> qparam;
qparam.append( geomParam.toUtf8() );
qparam.append( QString("%1").arg( iter.key() ).toUtf8() );

PGresult* result=PQexec(connection, sql.toUtf8());
const char *param[2];
param[0] = qparam[0];
param[1] = qparam[1];

PGresult *result = PQexecPrepared(connection, "updatefeatures", 2, param, NULL, NULL, 0);
if( result==0 || PQresultStatus(result)==PGRES_FATAL_ERROR )
throw PGException(result);

PQclear(result);
} // if (*iter)

} // for each feature

PQexecNR(connection,QString("COMMIT").toUtf8());
PQexecNR(connection,QString("DEALLOCATE updatefeatures").toUtf8());
} catch(PGException &e) {
e.showErrorMessage( tr("Error while changing attributes") );
e.showErrorMessage( tr("Error while changing geometry values") );
PQexecNR(connection,QString("ROLLBACK").toUtf8());
PQexecNR(connection,QString("DEALLOCATE updatefeatures").toUtf8());
returnvalue = false;
}

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