Develop the undo button on QGIS, using the audit strategy on PostgreSQL.

[xtorret]

As Giswater works in a hybrid environment (PostgreSQL and QGIS) DB transactions need to be managed with the goal to enable revoke instruccion and undo capabilities.
On QGIS side, the goal is to develop a button with log of changes will be undone (including grafics for geometries)
On DB side, the approach is to develop complex audit in order to register all changes into database enabling restore from some point when undo button is clicked