topic Re: How to get only updated features through iOS sdk in ArcGIS Runtime SDK for iOS Questions

How to get only updated features through iOS sdk

KamalMittal — Fri, 16 Jun 2017 03:33:57 GMT

Hi,

I have generated geodatabase on device for offline use. Now I want to get only those features which are last edited/modified or newly added instead of whole features data and update geodatabse(which will contain old + new feature data) on device when user press refresh button. Right now I am using Arcgis runtime iOS sdk v100.0

How I will achieve that thing?

Thanks,

Kamal

Re: How to get only updated features through iOS sdk

SuganyaBaskaran1 — Fri, 16 Jun 2017 16:50:33 GMT

You'll have to loop through the tables in your geodatabase and use updatedFeaturesWithCompletion: method available on AGSGeodatabaseFeatureTable class. Alternatively, you can also just get the number of updates using updatedFeaturesCountWithCompletion: method.

Suganya

Re: How to get only updated features through iOS sdk

KamalMittal — Sat, 17 Jun 2017 11:26:19 GMT

Thanks Suganaya.

Actually I want to fetch only updated features or specific features data from arcgis online layer url not from the locally geodatabase.

Thanks,

Kamal

Re: How to get only updated features through iOS sdk

SuganyaBaskaran1 — Tue, 20 Jun 2017 17:30:36 GMT

Do you mean when you do a sync? If that's the case, by default sync operation is performed for only the changes.

Re: How to get only updated features through iOS sdk

KamalMittal — Thu, 06 Jul 2017 09:48:22 GMT

Yes I am asking about sync operation. So one thing I want to confirm is that when I call feature service again then it will return only updated feature data or whole feature data?

Thanks,

Kamal

Re: How to get only updated features through iOS sdk

KamalMittal — Sat, 08 Jul 2017 07:52:36 GMT

Any Update on this?

Re: How to get only updated features through iOS sdk

MichaelDavis3 — Thu, 24 Aug 2017 17:36:06 GMT

At least in my experience the default behavior when syncing is to send and receive only the diff information. You shouldn't be getting back the entire dataset.