[mapguide-users] Selection Limit?

[Mauricio Villablanca]

I noticed $selection2->GenerateFilter($layer, $layerClassName) doesn't always
generate a valid filter in MGE2009. Use GenerateFilters instead

Check my post in the "Problem with MgSelection's SelectedFeatures" thread
started by Tom Lazo for selecting features.


Nickthetemp wrote:
> 
> Hello
> 
> I am using the following code to read through a selection and grab a 7
> digit number, which is then put into an array:
> 
>             $layerClassName = $layer->GetFeatureClassName();
>             $selectionString = $selection2->GenerateFilter($layer,
> $layerClassName);
> 
>             // Get the feature resource for the selected layer
> 
>             $layerFeatureId = $layer->GetFeatureSourceId();
>             $layerFeatureResource = new
> MgResourceIdentifier($layerFeatureId);
> 
>             // Apply the filter to the feature resource for the selected
> layer. This returns
>             // an MgFeatureReader of all the selected features.
> 
>             $queryOptions->SetFilter($selectionString);
>             $featureReader =
> $featureService->SelectFeatures($layerFeatureResource, $layerClassName,
> $queryOptions);
> 
>             // Process each item in the MgFeatureReader, displaying the
> PID
> 			
> 			while ($featureReader->ReadNext())
>             {
>               $valArray[$counter] = $featureReader->GetInt32('PID');
>               $counter = $counter + 1;
>             }
> 
> The code works fine until I hit a larger selection number. Is there a
> limit on the number of features that can be selected from a database?
> 
> I get the following error when the selection is big:
> 
> An exception occurred in FDO component. RDBMS: [IBM][CLI
> Driver][DB2/LINUX] SQL0010N The string constant beginning with ""MAPI"
> does not have an ending string delimiter. SQLSTATE=42603
> 
> Any help would be appreciated
> 
> Nick
> 

-- 
View this message in context: http://n2.nabble.com/Selection-Limit--tp3321984p3336537.html
Sent from the MapGuide Users mailing list archive at Nabble.com.