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Is there a workflow to backup Collector while in offline mode?

NathanEnge

Hi folks

We have the need to use Collector in offline mode for at least a week during field season. Although our devices are charged regularily and have access to be connected to our mobile workstations, there is still no wifi or cell ranges to sync to AGO.

In order to mitigate the risk of losing collected data on devices due to hardware failure, is there a workflow where the data can be backed up through iTunes or the file system (for android).

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dougbrowning

This would be connecting to a computer though.

Has anyone done this totally offline? My idea is to use a USB stick plugged into the tablet. I am ordering some to test but have not got them yet.

thanks

JosephMcGehan

.. I'd like to use py to automate the above. I'd like to back up all runtime geodatabase, then programaticllay replicate changes against a local master, and pass the runtime geodatabase back.

zkovacs

Hi Nathan

The workflow is fairly similar, although you need to retrieve the content in a different way, since there are restircitions on iOS devices.

1. Using iTunes:

Click on Apps and browse to the bottom of the screen where there is a list of your installed apps which content you can manage from iTunes. Select 'Collector' to see the documents list and then click on the folder with the AGOL username you want to save/backup. Select 'Save' to copy that folder to your PC.

Depending on the size of the folder (attachments, etc), it might take a while to copy.

2. Use a 3rd party app like iExplorer, iFunBox, etc to get access to the file system and only grab the folder/data you need.

Hope this helps.

NathanEnge

Thanks zoltan

do you know if there is a similar workflow in the iOS? iTunes doesn't give access to the file structure, nor does just browsing to the device.

May have to use something like iFile?

zkovacs

Nathan

You can find the collected offline data in the ../ArcGIS_Collector/offline_data/ folder on your Android phone. If you have only one survey downloaded for offline use to the device, it's easy to find the subfolder as there will only be one. Project folders are named with a unique id (not sure, but this might be the replica ID generated by the API) instead of a readable name. When you found the project folder in question, there will be a number of runtime GDB files with the extension of ".geodatabase" (depending on the number of FS used). Simply copy the whole folder to back it up (the process should be similar on iOS). You can turn the runtime GDBs in to file GDBs by using the 'Copy Runtime Geodatabase to File Geodatabase' tool in ArcGIS (at least in 10.3).

(Alternative workflow here.)

I hope this helps.

Zoltan

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