Fusion: error property in JSON object of mapLoaded is incomplete.

[jng]

I've tried creating an ApplicationDefinition (Slate) out of one of our existing cemetery maps to see what it looked. When I loaded the map, it gave me this error

Fusion Error: Missing } in property list at /fusion/mapguide/MapGuide.js (line 193)

So I looked at that particular line in firebug, and it was a json object being eval'ed, so I reloaded the map again so I could trap the json output, and this is what I got from firebug (copy/pasted)

{sessionId:'0f952198-0000-1000-8003-000c292b5017_en_0A00053B0AFC0AFB0AFA',mapId:'Library://Cemeteries/Bridgewater/Maps/BridgewaterMap.MapDefinition',metersPerUnit:1,mapName:'BridgewaterMap',extent:[226822.35112645,5943821.3474294,227164.83574661,5944235.9071711],layers:[{propertyMappings:{},uniqueId:'1163a9cc-0000-1000-8005-000c292b5017',layerName:'TreePoints',layerTypes:[0],displayInLegend:true,expandInLegend:true,resourceId:'Library://Cemeteries/Bridgewater/Layers/TreePoints.LayerDefinition',parentGroup:'1163a9cc-0000-1000-8003-000c292b5017',legendLabel:'TreePoints',selectable:true,visible:true,actuallyVisible:false,editable:true,scaleRanges: [{minScale:1501,maxScale:100000000.0,styles:[{legendLabel:'',filter:'',geometryType:1,categoryIndex:0}]},{minScale:901,maxScale:1500,styles:[{legendLabel:'',filter:'',geometryType:1,categoryIndex:0}]},{minScale:361,maxScale:900,styles:[{legendLabel:'',filter:'',geometryType:1,categoryIndex:0}]},{minScale:100,maxScale:360,styles:[{legendLabel:'',filter:'',geometryType:1,categoryIndex:0}]}]},{propertyMappings:{},uniqueId:'1163a9cc-0000-1000-8006-000c292b5017',layerName:'MainTitle',layerTypes:[0],displayInLegend:true,expandInLegend:true,resourceId:'Library://Cemeteries/Bridgewater/Layers/MainTitle.LayerDefinition',parentGroup:'1163a9cc-0000-1000-8004-000c292b5017',legendLabel:'MainTitle',selectable:false,visible:true,actuallyVisible:true,editable:true,scaleRanges: [{minScale:0,maxScale:100000000.0,styles:[{legendLabel:'',filter:'',geometryType:1,categoryIndex:0}]}]},{ERROR: An exception occurred in FDO component.
RDBMS: No current open database.  
An exception occurred in FDO component.
RDBMS: No current open database.  
Exception occurred in method MgFdoConnectionManager.Open at line 862 in file d:\buildforgeprojects\mapguide_open_source_v2.0\build_10.7\mgdev\server\src\common\manager\FdoConnectionManager.cpp

- MgFeatureServiceHandler.ProcessOperation line 83 file d:\buildforgeprojects\mapguide_open_source_v2.0\build_10.7\mgdev\server\src\services\feature\FeatureServiceHandler.cpp
- MgOpGetClassDefinition.Execute line 157 file d:\buildforgeprojects\mapguide_open_source_v2.0\build_10.7\mgdev\server\src\services\feature\OpGetClassDefinition.cpp
- MgServerDescribeSchema.GetClassDefinition line 1443 file d:\buildforgeprojects\mapguide_open_source_v2.0\build_10.7\mgdev\server\src\services\feature\ServerDescribeSchema.cpp
- MgServerDescribeSchema.DescribeSchema line 538 file d:\buildforgeprojects\mapguide_open_source_v2.0\build_10.7\mgdev\server\src\services\feature\ServerDescribeSchema.cpp
- MgServerDescribeSchema.ExecuteDescribeSchema line 171 file d:\buildforgeprojects\mapguide_open_source_v2.0\build_10.7\mgdev\server\src\services\feature\ServerDescribeSchema.cpp
- MgFdoConnectionManager.Open line 862 file d:\buildforgeprojects\mapguide_open_source_v2.0\build_10.7\mgdev\server\src\common\manager\FdoConnectionManager.cpp

The short answer is:

• At least one of the layers was broken because it was linked to a database that didn't exist on our test machine. The old AJAX viewer would've gracefully handled it by simply not rendering that particular layer.

• The json output above is missing two } characters 1 - At the end of the error property of the json object 2 - At the end of the json object.

Could the MapGuide stack trace be interfering with the JSON output?

[tomfukushima]

Paul, Should MGOS format the response in a certain way? Tom

[jng]

Doesn't happen now in RC4, using same dataset with same broken layer.