SL: Add scenario support.

src/Model/SedimentLayer/SedimentLayerList.py

@@ -19,7 +19,7 @@
 from tools import trace, timer
 
 from Model.Except import NotImplementedMethodeError
-from Model.Tools.PamhyrList import PamhyrModelList
+from Model.Tools.PamhyrListExt import PamhyrModelList
 from Model.SedimentLayer.SedimentLayer import SedimentLayer
 
 
@@ -35,11 +35,16 @@ class SedimentLayerList(PamhyrModelList):
         return new
 
     def _db_save(self, execute, data=None):
-        ok = True
+        execute(
+            "DELETE FROM sedimentary_layer" +
+            f"WHERE scenario = {self._status.scenario_id}"
+        )
+        execute(
+            "DELETE FROM sedimentary_layer_layer" +
+            f"WHERE scenario = {self._status.scenario_id}"
+        )
 
-        # Delete previous data
-        execute("DELETE FROM sedimentary_layer")
-        execute("DELETE FROM sedimentary_layer_layer")
+        ok = True
 
         for sl in self._lst:
             ok &= sl._db_save(execute, data)