IMutableFeature & IMutableRecord?
- mika -
[email protected] kirjoitti 2013-11-26 16:44:
Thanks Jackie,
that helped.
Another question relating to the same field.
Constructing features and inserting them into feature source. I'll
try to cut irrelevant part out of this. I can't figure out how to do
this. I guess the actual insert would go like this.
IInsertFeatures ins =
(IInsertFeatures)conn.CreateCommand((int)CommandType.InsertFeature);
ins.FeatureSourceId = "xxx";
ins.ClassName = "yyy";
ins.Execute();
But how would I "bind" and construct the "propertycollection" for
that? Any examples?
This is a snippet from my old method.
- mika -
public int insertRoutes(MgResourceIdentifier mri, List<Feature>
routes)
{
int inserted = 0;
MgFeatureCommandCollection commands = new
MgFeatureCommandCollection();
MgFeatureService mfs = this.featSrvc;
MgPropertyCollection insertedFeatures;
MgAgfReaderWriter agfRW = new MgAgfReaderWriter();
foreach (Feature route in routes)
{
MgPropertyCollection routeCol = new
MgPropertyCollection();
MgGeometryFactory geometryFactory = new
MgGeometryFactory();
if (route.geometry.type == "MultiPoint")
{
MgPointCollection pointCol = new MgPointCollection();
MgPoint uusipiste =
geometryFactory.CreatePoint(geometryFactory.CreateCoordinateXY((double)route.geometry.coordinates[0][0],
(double)route.geometry.coordinates[0][1]));
pointCol.Add(uusipiste);
MgMultiPoint uudetpisteet =
geometryFactory.CreateMultiPoint(pointCol);
//MgPoint uusipiste =
geometryFactory.CreatePoint(geometryFactory.CreateCoordinateXY((double)route.geometry.coordinates[0][0],
(double)route.geometry.coordinates[0][1]));
MgByteReader agf = agfRW.Write(uudetpisteet);
MgGeometryProperty geom = new
MgGeometryProperty("Geom", agf);
MgInt32Property reitinid = new
MgInt32Property("kohteetid", route.properties.routeid);
MgInt32Property reitinosanid = new
MgInt32Property("routepartid", route.properties.routepartid);
MgStringProperty type = new MgStringProperty("type",
route.properties.type);
MgInt32Property angle = new MgInt32Property("angle",
(int)Math.Round(route.properties.angle, 0));
MgStringProperty symbol = new
MgStringProperty("symbol", route.properties.symbol);
routeCol.Add(geom);
routeCol.Add(reitinid);
routeCol.Add(reitinosanid);
routeCol.Add(type);
routeCol.Add(angle);
routeCol.Add(symbol);
string fclassName =
"schema_routelines:dim_routepoints";
MgInsertFeatures insertFeatures = new
MgInsertFeatures(fclassName, routeCol);
commands.Add(insertFeatures);
}
else if (route.geometry.type == "LineString")
{
}
}
if (commands.Count > 0)
{
insertedFeatures = mfs.UpdateFeatures(mri, commands,
false);
inserted = insertedFeatures.Count;
}
return inserted;
}
Jackie Ng kirjoitti 2013-11-25 06:52:
The Maestro SDK contains everything you need to build an application
on top
of the Maestro API:
- The Maestro API assemblies
- The full API reference + basic developer's guide in a CHM
document
- Some desktop/web sample applications using the Maestro API
- A ProviderTemplate utility to build your own LocalNative
connection
provider that wraps your specific version of the official .net
MapGuide API.
You can download the Maestro SDK from the same download page as
Maestro
itself: http://trac.osgeo.org/mapguide/wiki/maestro/Downloads
To answer your question specifically:
Use the CreateCommand() of the IServerConnection to create a
IDeleteFeatures
command:
public void ClearDataSource(IServerConnection conn, String
dataSourceId, String featureName)
{
IDeleteFeatures deleteCmd =
(IDeleteFeatures)conn.CreateCommand(CommandType.DeleteFeatures);
deleteCmd.FeatureSourceId = dataSourceId;
deleteCmd.ClassName = featureName;
deleteCmd.Filter = "ID >= 0";
int nDeleted = deleteCmd.Execute();
}
Note that support for IDeleteFeatures varies on the implementation
of
IServerConnection. For example, the HTTP one that wraps the mapagent
won't
support CRUD operations, but the ones that wrap the official
MapGuide API
and mg-desktop do support CRUD operations. You can programmatically
check
support for such commands via the capabilities of the
IServerConnection
- Jackie
--
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