Migrate location recorder and refine db config

alembic/env.py

@@ -4,6 +4,7 @@ from alembic import context
 from sqlalchemy import engine_from_config, pool
 
 from app.config import get_settings
+from app.models import Location  # noqa: F401
 from app.models.base import Base
 
 config = context.config
@@ -12,7 +13,9 @@ if config.config_file_name is not None:
     fileConfig(config.config_file_name)
 
 settings = get_settings()
-config.set_main_option("sqlalchemy.url", settings.database_url)
+configured_url = config.get_main_option("sqlalchemy.url")
+if not configured_url or configured_url == "sqlite:///./data/locationRecorder.db":
+    config.set_main_option("sqlalchemy.url", settings.location_database_url)
 
 target_metadata = Base.metadata
 
@@ -43,4 +46,3 @@ if context.is_offline_mode():
     run_migrations_offline()
 else:
     run_migrations_online()
-