Feature Not Saved after edit it ( Last Update )

[abdullamuthana]

Describe the issue

if there is any feature on the map then i want to edit the feature after that the edit i have done not save

Observed behavior

When i try to edit any feature on the map it said Changes Saved but it's not saved

Screenshots and GIFs

Already Added

[Please also attach additional files if a

specific project/dataset is useful to investigate the problem.]

Desktop (please complete the following information)

Qfield Last Update

Mobile (please complete the following information)

• Device: [iPhone13 pro max]
• OS: [Android 11]
• QField version: 3.0.4 - Amazonia

Additional information

• Problem started happening recently, didn't happen in an older version of QField: Yes
• Problem can be reliably reproduced, doesn't happen randomly: Yes
• Problem happens with all files and projects, not only some files or projects: Yes All

[nirvn]

@abdullamuthana , can you share a sample project? I'm unable to replicate with the sample bees project shipped with QField.

[abdullamuthana]

test.zip
Sure you can use this one and try to edit something in PO layer

@abdullamuthana , can you share a sample project? I'm unable to replicate with the sample bees project shipped with QField.

[nirvn]

@abdullamuthana , thanks this is helpful.

Turns out that the problem has to do with your geopackage structure. For some reason, your feature ID column in your layers are name-less, i.e.:

This results in QGIS/gdal not being able to add the feature ID column when sorting features. In QField 3.0, we now sort feature lists, which means in your case that editing sorted features results in a missing ID needed to save the edits.

My suggestion is to simply edit your geopackage and name the fid columns "fid" (you can do that easily using the open source sqlite browser application) That fixes the situation.

You could also file an issue upstream in QGIS, but in this case I think name-less columns is the problem, not QGIS :)

[abdullamuthana]

@abdullamuthana , thanks this is helpful.

Turns out that the problem has to do with your geopackage structure. For some reason, your feature ID column in your layers are name-less, i.e.:

This results in QGIS/gdal not being able to add the feature ID column when sorting features. In QField 3.0, we now sort feature lists, which means in your case that editing sorted features results in a missing ID needed to save the edits.

My suggestion is to simply edit your geopackage and name the fid columns "fid" (you can do that easily using the open source sqlite browser application) That fixes the situation.

You could also file an issue upstream in QGIS, but in this case I think name-less columns is the problem, not QGIS :)

You mean the issue happen because the id column is NULL ?

[nirvn]

@abdullamuthana , no, I mean the issue is happening because your fid index column has an empty name (i.e. the "" INTEGER NOT NULL line).

[abdullamuthana]

but why the same project file was working without any problem before the update ?

[abdullamuthana]

I got ur idea you mean this is because the first column show as - which mean no name

[nirvn]

@abdullamuthana , prior to QField 3.0, we were not sorting feature lists (eg the list you get when identifying features through tapping on the screen).

Your malformed geopackage leads to the loss of feature ID when sorting features. It is replicable in QGIS too. I'm surprised the geopackage worked at all considering the empty attribute name used for the indexed ID.

[nirvn]

@abdullamuthana , exactly 💯

[abdullamuthana]

Ok let me try to do name for it

[abdullamuthana]

Why i can't do a name for it inside DB Manager of Qgis ?

[nirvn]

@abdullamuthana , empty column names have got to break quite a few assumptions in QGIS.

I was able to rename the column using SQLite Browser.

[abdullamuthana]

I have downloaded DB Browser SQLite would you please guide me ?

[abdullamuthana]

nvr mind i have figure out

[abdullamuthana]

The Issue has been fixed after creating a name for it
Many Thanks

[nirvn]

@abdullamuthana , great, thanks for confirming. Happy field mapping!