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Warn the user if PostGIS isn't in the selected database

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git-svn-id: http://svn.osgeo.org/qgis/trunk/qgis@5966 c8812cc2-4d05-0410-92ff-de0c093fc19c
This commit is contained in:
g_j_m 2006-10-17 07:51:33 +00:00
parent 58c523153d
commit 55b1d3d178
1 changed files with 23 additions and 1 deletions
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24
src/plugins/spit/qgsspit.cpp
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@ -427,8 +427,30 @@ PGconn* QgsSpit::checkConnection()
result = false;
}
}
if ( result )
if (result )
{
// Check that the database actually has postgis in it.
QString sql1 = "SELECT postgis_lib_version()"; // available from v 0.9.0 onwards
QString sql2 = "SELECT postgis_version()"; // depreciated
PGresult* ver = PQexec(pd, sql1.toLocal8Bit().data());
if ( PQresultStatus(ver) != PGRES_TUPLES_OK)
{
// In case the version of postgis is older than 0.9.0, try the
// depreciated call before erroring out.
PQclear(ver);
ver = PQexec(pd, sql2.toLocal8Bit().data());
if ( PQresultStatus(ver) != PGRES_TUPLES_OK)
{
QMessageBox::warning( this, tr("PostGIS not available"),
tr("<p>The chosen database does not have PostGIS installed, "
"but this is required for storage of spatial data.</p>"));
return NULL;
}
}
return pd;
}
else
return NULL;
}