[mapguide-users] Field editor

Thu Mar 19 18:05:30 EDT 2009

Howdy

I'm working on a field editor for Mapguide, I woudl like to give certain
users the ability to edit the data through mapguide.

I have produced this code thus far I will work on making it more dynamic but
at the moment it is locked down to a certain feature type and certain
fields.

I seem to be having a problem with the selection XML and generating a
filter.... I'm sure there will be more problems but first things first

The selection XML seems to come across correctly.

<%@ Page Language="C#" ValidateRequest="false"  %>
<%@ Import Namespace="System" %>
<%@ Import Namespace="System.IO" %>
<%@ Import Namespace="System.Collections.Specialized" %>
<%@ Import Namespace="System.Text" %>
<!-- #Include File="../../../mapviewernet/common.aspx -->
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<script runat="server">

</script>

<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title>Untitled Page</title>

<script runat="server">
  String mapName = "";
  String sessionId = "";
  String ID = "";
  String ROW = "";
  String TENANT = "";
  String DOCUMENT = "";
  String imgid = "";
  String VESSEL = "";
  String STATUS = "";
  String LENGTH = "";
  String mySelXML = "";
  String layerName = "";

</script>

</head>
<%

  Response.Charset = "utf-8";
  InitializeWebTier();
  GetRequestParameters();
  MgUserInformation cred = new MgUserInformation(sessionId);
  //connect to the site and get a feature service and a resource service
instances
  MgSiteConnection site = new MgSiteConnection();
  site.Open(cred);
  MgResourceService resourceSrvc =
site.CreateService(MgServiceType.ResourceService) as MgResourceService;
  MgFeatureService featureSrvc =
site.CreateService(MgServiceType.FeatureService) as MgFeatureService;
  //Create a temporary map runtime object, locate the layer
  MgMap map = new MgMap();
  map.Open(resourceSrvc, mapName);

  Response.Write(layerName);
  MgLayerBase currentLayer = map.GetLayers().GetItem(layerName);
  String currentClassName = currentLayer.GetClassName();
  MgSelection newSel = new MgSelection(map);
  newSel.FromXml(mySelXML);
  String myFilter = new MgSelection(map,
mySelXML).GenerateFilter(currentLayer, currentClassName);
  Response.Write(myFilter);

  //String myFilter = mySel.GenerateFilter(myLayer, myLayer.GetClassName());
  Response.Write("myFilter: " + EscapeForHtml(myFilter));
  MgFeatureCommandCollection updateSelection = new
MgFeatureCommandCollection();
  MgPropertyCollection properties = new MgPropertyCollection();
  Response.Write(imgid);
  //create loop to loop through each property and update where needed
  properties.Add(new MgStringProperty("imgid", imgid));

  MgUpdateFeatures updateCommand = new MgUpdateFeatures(currentClassName,
properties, myFilter);

  updateSelection.Add(updateCommand);

  //Response.Write(mapName);
  //Response.Write(mySelXML);

  //ReleaseReader(featureSrvc.UpdateFeatures(mySel.GetResourceId(),
updateSelection, false), updateSelection);

  map.Save();

   %>

<body>

</body>
</html>
<script runat=server>

void GetRequestParameters()
{
  if (Request.HttpMethod == "GET")
  {
    GetParameters(Request.QueryString);
  }
}

void GetParameters(NameValueCollection parameters)
{
    mapName = GetParameter(parameters, "MAPNAME");
    sessionId = GetParameter(parameters, "SESSIONID");
    ID = GetParameter(parameters, "ID");
    ROW = GetParameter(parameters, "ROW");
    TENANT = GetParameter(parameters, "TENANT");
    DOCUMENT = GetParameter(parameters, "DOCUMENT");
    imgid = GetParameter(parameters, "imgid");
    VESSEL = GetParameter(parameters, "VESSEL");
    STATUS = GetParameter(parameters, "STATUS");
    LENGTH = GetParameter(parameters, "LENGTH");
    mySelXML = GetParameter(parameters, "SELXML");
    layerName = GetParameter(parameters, "layerName");
}

  void ReleaseReader(MgPropertyCollection res, MgFeatureCommandCollection
commands)
{
    if(res == null)
        return;

    for(int i = 0; i < res.GetCount(); i++)
    {
        MgFeatureCommand cmd = commands.GetItem(i);
        if(cmd.GetCommandType().Equals(MgFeatureCommandType.UpdateFeatures))
        {
            MgFeatureProperty resProp = (MgFeatureProperty)res.GetItem(i);
            if(resProp != null)
            {
                MgFeatureReader reader =
(MgFeatureReader)resProp.GetValue();
                if(reader == null)
                    return;
                reader.Close();
            }
        }
    }
} 
</script>

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