I am using MgRenderingService::QueryFeatures(). But when:
- I use "A-code" to get layers from $map, I am able to run "C-code" part and
'echo $featureFilter . "<br/>";' outputs filters with features Id. Something
like this:
(FID=5023802)
(FID=11315)
- If I use "A-code" but comment out the "C-code" and uncomment "D-code". the
server returns mgunclassifiedexception
- If I use "B-code" instead of "A-code", the server returns
mginvalidmapdefinitionexception
Why I am not able to get FeatureReaders straight from MgSelection object?
What can be wrong? Why it throws those exceptions?
<?php
require_once __DIR__ . '/IGsSearcher.php';
require_once __DIR__ . '/GsServiceProvider.php';
require_once __DIR__ . '/MgHelper.php';
class GsSearcherMapStrategy implements IGsSearcher{
public static $MAP = 'map';
public static $GEOMETRY = 'geometry';
private $map;
private $geometry;
private $session;
public function __construct($params){
$this->map = $params[self::$MAP];
$this->geometry = $params[self::$GEOMETRY];
$this->session = $this->map->GetSessionId();
}
public function search(){
$mgFeatureInformation = $this->getMgFeatureInformation();
$resourceService = GsServiceProvider::get($this->session,
MgServiceType::ResourceService);
$mapName = $this->map->GetName();
$mgSelection = $mgFeatureInformation->GetSelection();
//A-code
$layers = $this->map->GetLayers();
//B-code
//$layers = $mgSelection->GetLayers();
$countLayers = $layers->GetCount();
for ($i=0; $i < $countLayers; $i++) {
$layer = $layers->GetItem($i);
//C-code
$featureFilter = $mgSelection->GenerateFilter($layer,
$layer->GetFeatureClassName());
echo $featureFilter . "<br/>";
//D-code
//$featureReader =
$mgSelection->GetSelectedFeatures($layer,
$layer->GetFeatureClassName(),false);
}
}
private function getMgFeatureInformation(){
$renderingSrv = GsServiceProvider::get($this->session,
MgServiceType::RenderingService);
$mgStringCollection = new MgStringCollection();
$layers = $this->map->GetLayers();
$countLayers = $layers->GetCount();
for ($i=0; $i < $countLayers; $i++) {
$mgStringCollection->Add($layers->GetItem($i)->GetName());
}
$selectionVariant = MgFeatureSpatialOperations::Intersects;
$maxFeatures = -1;
return $renderingSrv->QueryFeatures($this->map,
$mgStringCollection,
$this->geometry, $selectionVariant, $maxFeatures);
}
}
--
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