smashed updated

alembic/env.py

@@ -1,3 +1,4 @@
+import os
 from logging.config import fileConfig
 
 from sqlalchemy import engine_from_config
@@ -7,6 +8,10 @@ from alembic import context
 
 config = context.config
 
+database_url = os.environ.get("DATABASE_URL")
+if database_url:
+    config.set_main_option("sqlalchemy.url", database_url)
+
 if config.config_file_name is not None:
     fileConfig(config.config_file_name)