topic Re: Error: reading a geodatabase on a device in ArcGIS Runtime SDK for iOS Questions

Error: reading a geodatabase on a device

TorstenStruck — Tue, 25 Mar 2014 09:30:04 GMT

Hi,

I'm coding a small application (with SDK for iOS 10.2.2) for displaying an offline geodatabase that I have created with ArcGIS for Desktop 10.2.1. I have put the geodatabase into my application bundle and everything looks good on the xcode ipad simulator.
But on my "real" ipad I'm getting the following error message when creating the AGSGDBGeodatabase object:

Error Domain=com.esri.arcgis.runtime.error Code=6 "PRAGMA journal_mode = WAL;" UserInfo=0x170264bc0 {NSLocalizedDescription=PRAGMA journal_mode = WAL;}

Here's the code snippet for loading the geodatabase file (ltg.geodatabase):

   NSString *gdbPath = [[NSBundle mainBundle] pathForResource:@"ltg" ofType:@"geodatabase"];
   NSError* myerror;
   AGSGDBGeodatabase *gdb = [[AGSGDBGeodatabase alloc] initWithPath:gdbPath error:&myerror];

Any ideas or solutions?

Thank you!

Re: Error: reading a geodatabase on a device

SuganyaBaskaran1 — Tue, 25 Mar 2014 20:00:51 GMT

Thanks for reporting. This seems to be an issue in the SDK. We'll work on fixing it.

A work around for it is to use iTunes File Sharing and share the geodatabase through it.
To enable file sharing in your app, set the property "Application supports iTunes file sharing" to YES in Info.plist file. Then you should be able to add the geodatabase as described here

You can then create the geodatabase as follows:

NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES); NSString *gdbPath = [paths objectAtIndex:0]; gdbPath = [gdbPath stringByAppendingPathComponent:@"ltg.geodatabase"]; if ([[NSFileManager defaultManager] fileExistsAtPath:gdbPath]) {    //create GDB here }

Hope this helps, please let us know if you have more questions.

Re: Error: reading a geodatabase on a device

ShiminCai — Tue, 25 Mar 2014 22:58:54 GMT

I bundled my geodatabase with my app. When my app started I copied the geodatabase from the app bundle to the app's Documents folder and then created the gdb from the copy in the Documents.

Re: Error: reading a geodatabase on a device

TorstenStruck — Fri, 10 Dec 2021 20:32:58 GMT

Thank you! That worked fine!

Thanks for reporting. This seems to be an issue in the SDK. We'll work on fixing it.

A work around for it is to use iTunes File Sharing and share the geodatabase through it.
To enable file sharing in your app, set the property "Application supports iTunes file sharing" to YES in Info.plist file. Then you should be able to add the geodatabase as described here

You can then create the geodatabase as follows:
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *gdbPath = [paths objectAtIndex:0];
gdbPath = [gdbPath stringByAppendingPathComponent:@"ltg.geodatabase"];
if ([[NSFileManager defaultManager] fileExistsAtPath:gdbPath]) {

  //create GDB here
}
Hope this helps, please let us know if you have more questions.

Re: Error: reading a geodatabase on a device

SweetySingh — Fri, 04 Apr 2014 07:49:01 GMT

Which file type got worked .gdb or .geodatabase?
We are also facing same problem i.e unable to read data from .gdb file.

How we have to add it : locally in app or in documents directory?

Can you help with the steps how it got worked for you?

Thanks,
Sweety

Re: Error: reading a geodatabase on a device

SivaVysyaraju — Tue, 08 Apr 2014 19:33:54 GMT

I think it is .geodatabase file.

Re: Error: reading a geodatabase on a device

SuganyaBaskaran1 — Thu, 17 Apr 2014 19:43:58 GMT

Which file type got worked .gdb or .geodatabase?
We are also facing same problem i.e unable to read data from .gdb file.

How we have to add it : locally in app or in documents directory?

It's the .geodatabase file. Are you creating the file as outlined here ? This gives a .geodatabase file which you can add to the app through file sharing

Re: Error: reading a geodatabase on a device

VIKRANTKRISHNA — Mon, 23 Jun 2014 20:08:29 GMT

I need to package a demo geodataset along with app. How can I make this work, having geodatabase as part of project doesn't seems to work.

Re: Error: reading a geodatabase on a device

YueWu1 — Mon, 23 Jun 2014 21:43:13 GMT

Hello Vikrant,

Use this line to load the local geodatabase:
[PHP]NSString *gdbPath = [[NSBundle mainBundle]pathForResource:@"gdb_file_name" ofType:@"geodatabase"];[/PHP]

This is a generic way about how to load a file from Resources folder in iOS:

http://www.android-ios-tutorials.com/257/read-files-in-resources-folder-ios/

Hope this can help.

Re: Error: reading a geodatabase on a device

VIKRANTKRISHNA — Tue, 24 Jun 2014 12:51:06 GMT

Nathan,
This seems to be work for simulator, for iPad its giving error Domain=com.esri.arcgis.runtime.error code=12 "automatic extension loading failed:"

Re: Error: reading a geodatabase on a device

SuganyaBaskaran1 — Tue, 24 Jun 2014 20:45:33 GMT

Nathan,
This seems to be work for simulator, for iPad its giving error Domain=com.esri.arcgis.runtime.error code=12 "automatic extension loading failed:"

Vikrant,
At present, the SDK does not support opening geodatabase from bundle in device for those geodatabases created from REST services. (Geodatabase created as "Runtime Content" from ArcMap should work fine) Hence the error. In this case, the geo database has to be in the documents directory.
I've outlined a work around in my previous reply where you can add the geodatabase through iTunes File Sharing. Does that work for you?

Suganya