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fix for bug 1044242 symbology bug on where claused PostGIS tables

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git-svn-id: http://svn.osgeo.org/qgis/trunk/qgis@2138 c8812cc2-4d05-0410-92ff-de0c093fc19c
This commit is contained in:
mhugent 2004-10-16 23:26:28 +00:00
parent 575a52aae1
commit 7cf0782112
1 changed files with 18 additions and 2 deletions
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20
providers/postgres/qgspostgresprovider.cpp
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@ -853,7 +853,15 @@ QString QgsPostgresProvider::getPrimaryKey(){
QString QgsPostgresProvider::minValue(int position){
// get the field name
QgsField fld = attributeFields[position];
QString sql = QString("select min(%1) from %2").arg(fld.name()).arg(tableName);
QString sql;
if(sqlWhereClause.isEmpty())
{
sql = QString("select min(%1) from %2").arg(fld.name()).arg(tableName);
}
else
{
sql = QString("select min(%1) from %2").arg(fld.name()).arg(tableName)+" where "+sqlWhereClause;
}
PGresult *rmin = PQexec(connection,(const char *)sql);
QString minValue = PQgetvalue(rmin,0,0);
PQclear(rmin);
@ -865,7 +873,15 @@ QString QgsPostgresProvider::minValue(int position){
QString QgsPostgresProvider::maxValue(int position){
// get the field name
QgsField fld = attributeFields[position];
QString sql = QString("select max(%1) from %2").arg(fld.name()).arg(tableName);
QString sql;
if(sqlWhereClause.isEmpty())
{
sql = QString("select max(%1) from %2").arg(fld.name()).arg(tableName);
}
else
{
sql = QString("select max(%1) from %2").arg(fld.name()).arg(tableName)+" where "+sqlWhereClause;
}
PGresult *rmax = PQexec(connection,(const char *)sql);
QString maxValue = PQgetvalue(rmax,0,0);
PQclear(rmax);