Hi,
There are a couple of ways of doing this.
Below is some php code to get the definition of a layer, modify it and then
updated the new definition back into library. With a simple modification you
could change it so it reads the new definition from a file (just replace the
$updated_string with the xml string from the file).
You can run this code either from a web page or command prompt.
$installDir ='C:\\Program Files\\OSGeo\\MapGuide\\';
$extensionsDir = $installDir . 'Web\\www\\';
$viewerDir = $extensionsDir . 'mapviewerphp\\';
include $viewerDir . 'constants.php';
$layer_path = 'Library://alayer.LayerDefinition';
try
{
//MgInitializeWebTier ($webconfigFilePath);
MgInitializeWebTier($extensionsDir . "/webconfig.ini");
//create a new site connection
$siteConnection = new MgSiteConnection();//new MgSite();
$siteConnection->Open(new
MgUserInformation('Administrator','admin'));
//build a reference to the resource service
$resourceService =
$siteConnection->CreateService(MgServiceType::ResourceService);
//get the definition of the layer and create an xml object
from it
$resId = new MgResourceIdentifier($layer_path);
$byteReader = $resourceService->GetResourceContent($resId);
$data_connection_XML = $byteReader->ToString();
$doc = DOMDocument::loadXML($data_connection_XML);
//modify the $doc variable as required i.e. find needle and
replace with haystack
$updated_string= str_replace('needle' , 'haystack' , $doc);
// create a new xml definition from the updated string
$updated_doc = DOMDocument::loadXML($updated_string);
$DataDefinition = $updated_doc->saveXML();
//create the mgbyte source object
$byteSource = new MgByteSource($DataDefinition,
strlen($DataDefinition));
$byteSource->SetMimeType(MgMimeType::Xml);
//save the updated layer definition
$newResId = new MgResourceIdentifier($layer_path);
$resourceService->SetResource($newResId,
$byteSource->GetReader(), null);
}
catch (MgException $e)
{
echo "Mapguide ERROR: " . $e->GetMessage("eng") . "\n";
echo $e->GetStackTrace("eng") . "\n";
echo $e->GetDetails()."\n";
}
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