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quotes for text values in the postgres provider

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git-svn-id: http://svn.osgeo.org/qgis/trunk/qgis@2727 c8812cc2-4d05-0410-92ff-de0c093fc19c
This commit is contained in:
mhugent 2005-01-29 17:00:02 +00:00
parent 8c6df99f40
commit f37a383a0f
1 changed files with 23 additions and 3 deletions
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26
providers/postgres/qgspostgresprovider.cpp
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@ -394,7 +394,10 @@ QgsPostgresProvider::QgsPostgresProvider(QString uri):dataSourceUri(uri)
//fill type names into lists
mNumericalTypes.push_back("double precision");
mNumericalTypes.push_back("int4");
mNumericalTypes.push_back("int8");
mNonNumericalTypes.push_back("text");
mNonNumericalTypes.push_back("varchar(30)");
}
@ -1218,14 +1221,31 @@ bool QgsPostgresProvider::deleteAttributes(std::set<QString> const & name)
bool QgsPostgresProvider::changeAttributeValues(std::map<int,std::map<QString,QString> > const & attr_map)
{
bool returnvalue=true;
bool returnvalue=true;
//TODO: find out, if a value is text and quote if yes
PQexec(connection,"BEGIN");
for(std::map<int,std::map<QString,QString> >::const_iterator iter=attr_map.begin();iter!=attr_map.end();++iter)
{
for(std::map<QString,QString>::const_iterator siter=(*iter).second.begin();siter!=(*iter).second.end();++siter)
{
//TODO: collect several attribute changes for a feature in one statement (possibly more efficient)
QString sql="UPDATE "+tableName+" SET "+(*siter).first+"="+(*siter).second+" WHERE " +primaryKey+"="+QString::number((*iter).first);
QString value=(*siter).second;
//find out, if value contains letters and quote if yes
bool text=false;
for(int i=0;i<value.length();++i)
{
if(value[i].isLetter())
{
text=true;
}
}
if(text)
{
value.prepend("'");
value.append("'");
}
QString sql="UPDATE "+tableName+" SET "+(*siter).first+"="+value+" WHERE " +primaryKey+"="+QString::number((*iter).first);
#ifdef QGISDEBUG
qWarning(sql);
#endif