topic Re: Attachments on server but not on device in ArcGIS Runtime SDK for iOS Questions

Attachments on server but not on device

AHay — Wed, 09 Nov 2011 04:54:08 GMT

i have made a map to view on the esri ios app with editing and attachments enabled, all is good can edit and add attachments but when i come back into app the attachments images are blank.

the images do get sent to server but they will not open from desktop / catalog i can only see then if i save to a folder then open from folder.

i fixed all the virtual paths to output and cache folders but still cannot see in app

any ideas anyone?

Re: Attachments on server but not on device

RussRoberts — Wed, 09 Nov 2011 15:16:17 GMT

Can you see the attachments on the web map you created?
Thanks
Russ

Re: Attachments on server but not on device

AHay — Wed, 09 Nov 2011 20:05:23 GMT

i can see that there is an attachment but it is blank after i come back into app , i can see its file name and there is option to open it but there is no picture. Fr gen popup it doesn't open at all and if you go into edit feature and then go to attachments it opens a blank image.

the image is however on the server and can be saved and then opened.

do you know were the image are stored on the server ? it may be a permissions issue

Re: Attachments on server but not on device

MatthewFletcher — Thu, 10 Nov 2011 00:40:10 GMT

I have the same problem. I can attach a picture to a point and as long as I don't disconnect from my wireless or 3g connection, I can see the attachment. If I close out the esri app, turn off the iPad (standby), come back into the esri app, the attachment will still be available.

Once I disconnect from the network, reconnect and try to view the attached picture, a blank white picture is downloaded into the esri app. The images are available via the layer in a desktop environment, so I know the pictures are being saved, their just not being downloaded back onto the iOS app when wanted.

I was thinking database or virtual directory issues, but haven't found anything yet.

Re: Attachments on server but not on device

RussRoberts — Thu, 10 Nov 2011 16:57:53 GMT

Are you able to open these attachments when viewing the features on ArcGIS Online or are these maps hosted on your mobile content server?
Thanks
Russ

Re: Attachments on server but not on device

MatthewFletcher — Thu, 10 Nov 2011 17:38:14 GMT

All my data is hosted locally on the mobile content server.

Matt

Re: Attachments on server but not on device

AHay — Fri, 11 Nov 2011 03:01:51 GMT

Russ, my data is also hosted on local content server

Matt, someone else with same prob, are you able to see the image in arcmap? i can only see it if i save to another folder and then open it

Interestingly the android version of app throws and error stating internal server error ( i know generic error but a start)

this is a real issue as we really require the attachments part

Re: Attachments on server but not on device

RussRoberts — Fri, 11 Nov 2011 16:16:45 GMT

Hey
just a couple of questions:
What folder are you grabbing the attachments from?
What directories do you have set up for you outputs?
Is there any way you are able to see the rest endpoint for your attachments? One way to check is to place that feature in a web map on arcgis.com and make sure your attachments are visible. Once you do this click on a feature with attachments and see if it will download and open or if you will get sent to a broken rest endpoint.

Thanks
Russ

Re: Attachments on server but not on device

RussRoberts — Fri, 11 Nov 2011 16:48:17 GMT

here is a sample that will help you hit a feature with an attachment through the rest endpoint

sampleserver.arcgisonline.com/ArcGIS/rest/services/FolderNameHere/FeatureServiceName/FeatureServer/Layer # i.e 0/OID of a feature i.e 851/attachments

Hope this helps
Russ

Re: Attachments on server but not on device

MatthewFletcher — Mon, 14 Nov 2011 16:33:14 GMT

Hay,
I'm able to see the image in ArcMap via the identify tool in ArcMap. Do you get a server error code 500 similar to what I wrote below?

Russ,
My attachments are being stored in a SDE GeoDatabase in SQLExpress. So I guess the folder location would be where the database is stored, at D:\Program Files\Microsoft SQL Server\MSSQL.1\MSSQL\Data. The feature class is in a feature dataset, not sure if it matters.

I have 2 output directories. One for internal firewall, the other for external. The problem exists for both output directories. The internal is located at D:\arcgisserver\arcgisoutput\, the external is located at D:\arcgisserver_external\arcgisoutput. I am able to see the pictures I've taken as attachments in the output folders.

I tried going the ArcGIS.com route to view my attachments. Anytime I try to open an attachment, I receive an error stating "Server error - the remote name could not be resolved:'your.server.name' Code:500".

Not sure what else to check.

Thanks,
Matt

Re: Attachments on server but not on device

RussRoberts — Mon, 14 Nov 2011 17:53:39 GMT

There is a problem with your outputs I think. I would post this question on the server forum or contact support to see if they can help you solve this issue.

Thanks
Russ

Re: Attachments on server but not on device

AHay — Mon, 14 Nov 2011 21:47:34 GMT

Matt,
i can see the names of the files by clicking feature with identify tool when i click on attachments link , the window open but when click on name nothing happens, i can then save the file to a location and then i can open. i get no errors

Also Matt you said you could see you attachments in you outputs folder, all of my output folders are empty?? is that normal?

Re: Attachments on server but not on device

MatthewFletcher — Tue, 15 Nov 2011 12:57:37 GMT

Hay,
There's a cleanup schedule you can set for the output folder. Maybe the images were deleted via a cleanup.

In ArcCatalog, right click on an Admin connection to your ArcServer connection - click "Server Properties" - Directories tab - select output directory - edit button. There's a Max File age and cleaning mode setting you can check.

Take a picture with the ESRI app, save it to your server and see if anything's written to the output folder.

I had some issues with saving attachments to the server before, which stemmed from IIS. When the issues existed, I was receiving errors on the ESRI app when saving the attachment to the server.

Matt

Re: Attachments on server but not on device

MatthewFletcher — Fri, 02 Dec 2011 12:03:43 GMT

Hay,
I spoke with Tech support about this issue. The attachments not being available on the iPad has to do with our network setup. Forgive me, I'm not a network guy, so i don't fully understand it.

Our GIS server is in a NAT subnet which is some how creating a loop. The way I understand it, the loop isn't created until the iPad is disconnected from the GIS Server. When the iPad is reconnected to the GIS server and the attachment is requested, the loop exists, not letting the attachment out and onto the iPad.

ESRI also said I should use ArcGIS Server to implement security vs. however we were doing it via the network.

Sorry I don't have any more specifics. Working with our network guy, hoping he figures it out.

Re: Attachments on server but not on device

CsabaHuszár — Fri, 02 Dec 2011 21:33:50 GMT

hi
can you help me? I have to use attachment but it didn't work for me.

I can send new data for the server:

AGSPoint *point=[[AGSPoint alloc]initWithX:11.11 y:22.22 spatialReference:self.featureLayer.spatialReference];
    AGSGraphic *graphic= [[AGSGraphic alloc]initWithGeometry:point symbol:nil attributes:attributes infoTemplateDelegate:nil];
    NSArray *array = [[NSArray alloc]initWithObjects:graphic, nil];
    [self.featureLayer addFeatures:array];

But I can't get the graphic(what i'm uploaded) ObjectID from the server so I cant upload a picture.

One more problem: if I fill the ObjectID field with a correct number(814) I get error when I make an AttachmentManager.

AGSGraphic* feature = [featureLayer lookupFeatureWithObjectId:814];
AGSAttachmentManager* attMgr = [featureLayer attachmentManagerForFeature: feature];

*** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '-[__NSCFDictionary setObject:forKey:]: attempt to insert nil key'
***

What is the solution? Thanks for the answer!

Re: Attachments on server but not on device

AHay — Sun, 04 Dec 2011 22:53:17 GMT

Matt,

wow that is an interesting resolution, don't really understand it but sounds feasible. please let me know how you go

Re: Attachments on server but not on device

NimeshJarecha — Mon, 05 Dec 2011 15:39:20 GMT

Csaba,

Your question is very much different than the original post in this thread. Hence, I would suggest creating a new thread.

Since, you are creating a new feature. You must wait until it's successfully added to server and then only you can add attachment. Here are the steps you should follow...

1. Adopt AGSFeatureLayerEditingDelegate delegate.
2. Set self.featureLayer.editingDelegate = self;
3. Add features with [self.featureLayer addFeatures:array]; and wait for the result (success or failure) in the editing delegate methods.
4. If successes, the result is returned in featureLayer:operation:didFeatureEditsWithResults: method. You'll get a new object id.
5. Now, you can do following and post the attachment.

AGSGraphic* feature = [featureLayer lookupFeatureWithObjectId:<newObjectId>];
AGSAttachmentManager* attMgr = [featureLayer attachmentManagerForFeature: feature];

Hope this helps!

Regards,
Nimesh

Regards,
Nimesh

Re: Attachments on server but not on device

MatthewFletcher — Thu, 22 Dec 2011 16:42:23 GMT

Hay,
I finally got my attachments to pull onto the iOS app. It took two additional steps:

1.) My network guy took the loop out of our subnet.
2.) I was still getting 401 unauthorized errors when accessing image attachments via REST. I found this article http://support.esri.com/en/knowledgebase/techarticles/detail/37316 detailing how to fix the same error for a Business Analyst issue. I followed the directions, enabling anonymous access for the ArcGISOutput folder, now everything works.

Matt

Re: Attachments on server but not on device

AHay — Thu, 22 Dec 2011 21:39:47 GMT

Matt,

thanks for the response but this is not the issue for us. We are using iis 7 and Anon Auth is enabled by default plus i thought i would check and it is enabled.

i dont get any errors when i attempt to attach a file (arcgis server nor event viewer errors) , its just that nothing happens, i think it must be with our proxy setup.

ESRI support have been very helpful on this and we will be looking closely at our proxy in the new year

thanks again a matt for all your input into this
have a great XMAS break