[+] improve alembic

deps/test-task-2025-06-30-v1/python/online/fxreader/pr34/test_task_2025_06_30_v1/tickers/alembic/env.py

@@ -18,7 +18,10 @@ if config.config_file_name is not None:
 # for 'autogenerate' support
 # from myapp import mymodel
 # target_metadata = mymodel.Base.metadata
-target_metadata = None
+# target_metadata = None
+from online.fxreader.pr34.test_task_2025_06_30_v1.tickers.settings import Settings
+from online.fxreader.pr34.test_task_2025_06_30_v1.tickers.models import Base
+target_metadata = Base.metadata
 
 # other values from the config, defined by the needs of env.py,
 # can be acquired:
@@ -27,7 +30,6 @@ target_metadata = None
 
 
 def run_migrations_offline() -> None:
-    from online.fxreader.pr34.test_task_2025_06_30_v1.tickers.settings import Settings
 
     """Run migrations in 'offline' mode.
 
@@ -61,10 +63,16 @@ def run_migrations_online() -> None:
     and associate a connection with the context.
 
     """
+
+    url = Settings.singleton().db_url
+
     connectable = engine_from_config(
-        config.get_section(config.config_ini_section, {}),
+        config.get_section(
+            config.config_ini_section, {}
+        ),
         prefix="sqlalchemy.",
         poolclass=pool.NullPool,
+        url=url,
     )
 
     with connectable.connect() as connection: