Access attachment from WebDAV Storage

[m-kuhn]

Discussed in https://github.com/opengisch/QField/discussions/2707

^{Originally posted by soester April 6, 2022} We have a large collection of photos from previous field work. It would be great if we could access those photos in the field, without copying them to the tablets.

If configuring the Widget Type 'Attachment' with the 'WebDAV Storage' option in QGIS, it is possible to display attachments from WebDAV storage in the Attribute Form (eg. pictures). But when creating an offline project, QField is unable to display these attachments. I think this is because the Authentication-Database is not available in QField. I didn't manage to store the credentials in the Qgis Project File itself (Don't know if this is an Issue on QGIS side).

Should the 'WebDAV Storage' option for attachments work in QField? Or is this not implemented?

[gioman]

Supporting QGIS attachment fields with webdav would be a great addiction to QField also for directly sending files to a server, as the workflow (i.e.export project folder to a nextcloud folder) to workaround google security policies is a real pain.

[gioman]

I may have some people interested in having webdav support in attachment fields in qfield, if you want let me know how much would be the "damage" :) and I'll see if a shared effort can be organized.

[mygiano]

for now is it required internet to save a photo from the field?? (if I set Attachment type to Webdav).