Add service model, route, and logic

app/logic/service_logic.py

@@ -0,0 +1,43 @@
+from app.database import (
+    add_to_database,
+    delete_from_database_where,
+    get_from_database,
+    get_from_database_where_id,
+    update_database_where,
+)
+from app.models.service import Service
+
+
+def get_all():
+    return get_from_database(Service)
+
+
+def get_by_id(service_id: int):
+    return get_from_database_where_id(Service, service_id)
+
+
+def create(service: Service):
+    add_to_database(service)
+    return service
+
+
+def update(
+    service_id: int,
+    update_attribute: str,
+    new_value: int | str | None,
+):
+    return update_database_where(
+        Service,
+        Service.id,
+        service_id,
+        update_attribute,
+        new_value,
+    )
+
+
+def delete(service_id: int):
+    return delete_from_database_where(
+        Service,
+        Service.id,
+        service_id,
+    )