Migrate from dyn_join_with to selectinload

src/gisaf/models/map_bases.py

@@ -1,6 +1,6 @@
 from typing import Any
 
-from sqlmodel import Field, String, JSON, Column
+from sqlmodel import Field, String, JSON, Relationship
 
 from gisaf.models.models_base import Model
 from gisaf.models.metadata import gisaf_map
@@ -51,13 +51,21 @@ class BaseMapLayer(Model):
 
     id: int | None = Field(primary_key=True, default=None)
     base_map_id: int = Field(foreign_key='base_map.id', index=True)
+    ## Subclasses must include:
+    # base_map: BaseMap = Relationship()
     store: str = Field(sa_type=String(100))
 
     @classmethod
-    def dyn_join_with(cls):
-        return {
-            'base_map': BaseMap,
-        }
+    def selectinload(cls):
+        return [
+            cls.base_map
+        ]
+
+    # @classmethod
+    # def dyn_join_with(cls):
+    #     return {
+    #         'base_map': BaseMap,
+    #     }
 
     def __repr__(self):
         return f"<models.BaseMapLayer {self.store or '':s}>"