I'm developing a QGIS plugin along with PostGIS and I'm facing some problems with labeling. This plugin creates several layers and tables. Some of these layers are views (labeling layers), so if I edit the one fo the source layer the view changes and then the label. I explain more detailed:
I have the following:
- One layer. Let's call it layer1.
- One none spatial table. Let's call it table1.
- One spatial view from these other two layers layer1 and table1 meant for labeling. Let's call it labelView1.
The point is this, when I edit table1 adding a new element linked by a foreign key with layer1. The label position in labelView1 changes into a messy thing. The Style of labelView1 is the following:
- Symbol is a geometry generator. Since I want to create callouts from label to the geometry, wich is a point.
- The position of the label is saved on project. In the qgd file.
I have seen this behaviour in Windows10 and in Ubuntu. The QGIS version is 3.4, but I tried to move to the new 3.10 version of QGIS, with the callouts new feature, but is the same result.
As well I tried to reproduce it in a much simple way, but without succed, that's why I want to share a link with a GIF file showing this issue:
I've done the same but without fixed position,and the labels don't move, but the geometry_generator does.
Is there any way to prevent it if this is a bug?
