QGIS » QGIS Application

Just ran into this nasty bug today, on Mac with recent master build of 5e28220. Makes simple editing seem destructive. Attached are photos showing the features disappearing during editing.

Provider: Spatialite
Layer type: Point
Map tool: Move feature (moved feature with 'trailhead' symbol)

Not sure if it is related, but after about 5 minutes of editing, and upon clicking 'Save edits' button, the associated CPU spins up to 100% and it takes a long time to save the edits, about 1-3 minutes. If I don't quit the app, the wait for saving or toggling editing gets even longer.

Same problem here with PostGIS provider on GNU/Linux.

Fixed in changeset 4164d6ed0b8498f3e3e45cfa40b639674c8c5074.

Nathan Woodrow wrote:

The PostGIS and spatialite driver are yet to be done.

so better tag this as "in progress"?

All the other providers are done now.

I reopen this bug because it seems that editing is still affected by the seriouos problems already described. I performed some editing tasks, on a new created polygon shape: add new features, delete features and cut existing ones. After saving some features disappear and other are duplicated getting the attribute of the disappeared ones. This problem occurs with high frequency but is not systematic, so I can reproduce it, but not every time I perform an editing operation. It happens after saving, so it corrupts the shape permanently.
Tested on win7 with last master.

Alessandro, can you do some more testing for us using a new version of master. I can't replicate any data loss or incorrect behavior. There was some issues with the split tools that have been fixed recently so I think this might have been caused by them.

I'm going to close this for now. Reopen if you still see the issue and can reproduce it for us.

It seems that the problems with editing still persist. I have made some tests, and found a bug, reproducible almost every time you make the following actions:
- start editing the shape
- draw a feature, delete one feature, add another one;

save: after saving a feature disappear, and another has been duplicated with the attribute of the disappeared feature.
I attached the shape and project used in test.
Other tools (split, merge, merge attribute) seems to work as expected.
I hope it will help to get rid of this bug,

• create polygon #32
• delete polygon #0
• create polygon #33
• save edits

polygons #25 and #33 disappear and polygons #23 and #28 are duplicated. The error may occur after a variable number of attemps. I think that the problem arises when the command "delete feature" is used after or before a command that create a new feature during. As you can se I work in windows 7. Reopen the ticket if you can replicate it.

I'm here if you have other requests, bye

Alessandro Ciali wrote:

Hi giovanni,
I made an orrible video, but I hope enough to show the problem. I summarize the actions:

• create polygon #32
• delete polygon #0
• create polygon #33
• save edits

Hi Alessandro, I'm finally able to replicate it.

Hi Alessandro, I'm finally able to replicate it.

attached screenshots before and after.

If you will use the project attached by Alessandro please ignore the missing layer error, and be sure to enable the "avoid intersection" option in the snapping dialog. Put also some transparency to the layer.

https://issues.qgis.org/attachments/6000/test19edit.zip

Fixed in changeset 810c11bb60a4c7d9959778159ce10af2effd9458.

Hi all, apologies for reopening if this isn't the best way of raising this.

I've just posted this problem on gis.stackexchange here, after having a similar problem here, and I think they're related to this bug.

In brief: in QGis master, csv files (and polygons e.g. voronoi built off them?) disappear when styles other than 'single symbol' are selected. A blank-named column field is present at the end of the list of candidate columns upon which to base the style.
In DuFour, neither of these problems are present.

Thanks. Let me know if this is unrelated to the internal workings of this page's bug and i'll open a new bug report for it.

Simon

Simon Dedman wrote:

Hi all, apologies for reopening if this isn't the best way of raising this.

I've just posted this problem on gis.stackexchange here, after having a similar problem here, and I think they're related to this bug.

In brief: in QGis master, csv files (and polygons e.g. voronoi built off them?) disappear when styles other than 'single symbol' are selected. A blank-named column field is present at the end of the list of candidate columns upon which to base the style.
In DuFour, neither of these problems are present.

Thanks. Let me know if this is unrelated to the internal workings of this page's bug and i'll open a new bug report for it.

Simon

I can't see how the issue you describe is related to the description of this ticket. Please file a new ticket with a proper (resumed) description, and steps/data to replicate. Thanks!