[mapguide-users] selectAggregate error

[Mauricio Villablanca]

You got that error because you tried to restrict the feature property with
the SelectDistinct method after you had already added a feature property. As
I suggested in my previous post, you need to set the restriction first then
add the feature properties.



Moog wrote:
> 
> 
> that's right. i fixed it making my own algorithm, but it want to know why
> i
> got that error. thanks
> 
> 
> Mauricio Villablanca wrote:
>> 
>> 
>> Your variable $aggregateOptions is a MgFeatureAggregateOptions object and
>> your featureService variable is a MgFeatureService object, right?
>> 
>> 
>> 
>> Moog wrote:
>>> 
>>> 
>>> hello,
>>> i need some help. Do you know why i get the following error in this
>>> line?
>>> 
>>> $dataReader = $featureService->SelectAggregate($resId,
>>> $layer->GetFeatureClassName(), $aggregateOptions);
>>> 
>>> where, $aggregateOptions is
>>> $aggregateOptions->AddFeatureProperty($this->args['PROPERTYNAME']);
>>> $aggregateOptions->SelectDistinct(true);
>>> 
>>> Index is out of range. Exception occurred in method GetItem at line 81
>>> in
>>> file
>>> d:\buildforgeprojects\carrera_nightly\build_32.2\ent\os\common\foundation\System/DisposableCollection.cpp 
>>> Index is out of range.
>>> - MgFeatureServiceHandler.ProcessOperation line 83 file
>>> d:\buildforgeprojects\carrera_nightly\build_32.2\ent\os\server\src\services\feature\FeatureServiceHandler.cpp
>>> - MgOpSelectFeaturesSpatial.Execute line 110 file
>>> d:\buildforgeprojects\carrera_nightly\build_32.2\ent\os\server\src\services\feature\OpSelectFeaturesSpatial.cpp
>>> - MgServerSelectFeatures.SelectFeatures line 249 file
>>> d:\buildforgeprojects\carrera_nightly\build_32.2\ent\os\server\src\services\feature\ServerSelectFeatures.cpp
>>> - GetItem line 81 file
>>> d:\buildforgeprojects\carrera_nightly\build_32.2\ent\os\common\foundation\System/DisposableCollection.cpp 
>>> 
>>> thanks ;)
>>> 
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>> 
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> 
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