topic Re: Refreshing Map Layers - When ArcGIS Feature layer changes in ArcGIS Online Questions

Refreshing Map Layers - When ArcGIS Feature layer changes

BledarBirbo1 — Thu, 02 Apr 2015 12:43:47 GMT

Hi.

There are 7 layers published through ArcGIS server as a feature service and there is a Map on AGOL that references those layers.

I am having an issue when i update the feature-class attributes, or add a new feature-class to the arcgis server service.

I can see that the publishing goes well. but

Those changes are not reflected to the AGOL map when i open it. I must remove all 7 layers from the map . and re add those layers again, loosing any changes that i had already made on the AGOL side. (Renaming, Attribute configuration, etc).

How can i force the AGOL map to refresh the layer definitions without removing the layers and adding them again from the map?

Thanks.

Re: Refreshing Map Layers - When ArcGIS Feature layer changes

JakeSkinner — Thu, 02 Apr 2015 13:34:31 GMT

Hi Bledar,

Try setting a refresh interval.

Re: Refreshing Map Layers - When ArcGIS Feature layer changes

BledarBirbo1 — Thu, 02 Apr 2015 13:55:52 GMT

Hi Jake.

Is this going to refresh both the data and the schema of the layers ? or just only the map ?

Re: Refreshing Map Layers - When ArcGIS Feature layer changes

JakeSkinner — Thu, 02 Apr 2015 14:37:07 GMT

This will refresh the layers within the map. You will not lose any renaming, attribute changes, etc you made within the web map.

Re: Refreshing Map Layers - When ArcGIS Feature layer changes

BledarBirbo1 — Thu, 02 Apr 2015 14:39:39 GMT

Ok, so it will refresh the Layer definition from the ArcGIS Server right ?

Re: Refreshing Map Layers - When ArcGIS Feature layer changes

JakeSkinner — Thu, 02 Apr 2015 14:45:57 GMT

Yes, what ever changes you made to the service will be reflected in the web map when the layer is refreshed.

Re: Refreshing Map Layers - When ArcGIS Feature layer changes

BledarBirbo1 — Tue, 05 May 2015 11:09:43 GMT

I am experiencing this problem again with Related Tables. ALTHOUGH nothing has changed on the Feature Service.

When i open the map in AGOL only the Feature layers show up on the Content list but not their related tables.

After playing some time with the map the related tables show up correctly, but i haven't found the pattern of actions that make this work yet.

I believe this is a bug and ESRI should check this ASAP.

Thanks.

Re: Refreshing Map Layers - When ArcGIS Feature layer changes

BenScott1 — Mon, 11 May 2015 05:44:44 GMT

I am finding something which is (perhaps) similar. I have a simple map service with a small number of points symbolised by one of the attributes. I have the 2 different layers from the map service added to ArcGIS online as feature layers. I have added them to a web map, which is embedded in a test html page.

When I update the attributes of the underlying data (which changes the symbology), I can see the symbology changes almost immediately when I go to the rest end point of the service and click ArcGIS Javascript to view it in a temporary map. With successive changes, they are visible every time I re-load that map.

My embedded web map, however, the symbology does not change. For test purposes I have set a fast refresh interval on the layers in my web map, and I can see them refresh (i.e. they flash), but the symbology doesn't change. It only changes when I clear my browser cache.

So.. it is something to do with browser caching of the service. The behaviour around this seems a little flaky - I have seen the symbology change to the new values, and then at any shift of the map canvass it reverts to the old values. Is there a way to force the arcgis online embedded web map to not be cached by the browser?

Cheers,

Ben

Re: Refreshing Map Layers - When ArcGIS Feature layer changes

KellyGerrow — Mon, 11 May 2015 20:27:40 GMT

Hi Bledar,

Would it be possible to share the webmap that you have that is currently experiencing the issue? I would also recommend contacting Esri Support Services so they can work with you to determine the cause of the error that you are seeing.

Thanks,

Kelly

Re: Refreshing Map Layers - When ArcGIS Feature layer changes

BenScott1 — Mon, 11 May 2015 23:50:04 GMT

Hi Kelly - not trying to hijack this thread with my issue (which may or may not be related), but I can't make my web map public yet but hope to do so soon. Doing some web searches (e.g. this example arcgis 10.1 - How can i keep browser from caching map services? - Geographic Information Systems Stack Exchange ) it seems the answer involves using the disableclientcaching property to ensure that the browser takes a fresh copy of the data every time. SO I guess now my question is is there a way in arcgis online to do that with an embedded web map or will I need to export the application from arcgis online, host it on my server and then change that property in javascript myself?

Re: Refreshing Map Layers - When ArcGIS Feature layer changes

BledarBirbo1 — Tue, 12 May 2015 15:29:37 GMT

Hi Kelly.

Unfortunately the map contains sensitive data and we cannot share it.

Thanks anyway.

Re: Refreshing Map Layers - When ArcGIS Feature layer changes

KellyGerrow — Thu, 02 Jun 2016 17:05:29 GMT

Hi Ben,

Does the symbology ever update in the embeded web map? This sounds more like an issue with how the particular map is set up than a browser cache issue. How did you add the layer to the web map and how are they symbolized? There are several places in which you can change the symbology of a layer, so understanding how the web map was made may help.

Check out my response in this post Dataset Not updating Schema in Collector, it outlines some tools to look at the underlying map json to see how it is referencing the layer.

Let me know if you have more questions,

Kelly

Re: Refreshing Map Layers - When ArcGIS Feature layer changes

BenScott1 — Wed, 10 Aug 2016 03:31:50 GMT

Hi Kelly - The data was not from collector - just a simple map service. We were using a python script to update attribute values daily and were finding that the symbology did not update to reflect that and some flaky things happened where at some zoom scales you got the new data and at others the old. I ended up remaking the map in javascript so I could use disableclientcaching and that seemed to fix the problem.

Re: Refreshing Map Layers - When ArcGIS Feature layer changes

DougBrowning — Tue, 06 Feb 2024 16:55:18 GMT

This does not work for symbology changes.