fix alembic configuration

backend/alembic.ini

@@ -1,4 +1,4 @@
 [alembic]
 # ... other settings ...
-sqlalchemy.url = driver://user:pass@localhost/dummy
+sqlalchemy.url = postgresql://admin:[email protected]:5432/db
 script_location = alembic

backend/alembic/env.py

@@ -7,23 +7,43 @@
 sys.path.append(os.path.dirname(os.path.dirname(os.path.abspath(__file__))))
 
 from models.base import Base  # noqa: E402
+from settings import APP_ENV, DATABASE_URL  # noqa: E402
 
 
 def run_migrations_online():
     connectable = context.config.attributes.get("connection")
 
     # For app database
     if connectable is None:
-        db_url = context.get_x_argument(as_dictionary=True).get("db", None)
-        if db_url:
-            connectable = engine_from_config(
-                context.config.get_section(context.config.config_ini_section),
-                prefix="sqlalchemy.",
-                poolclass=pool.NullPool,
-                url=db_url,
-            )
-            # Run migrations for app database
-            with connectable.connect() as connection:
-                context.configure(connection=connection, target_metadata=Base)
-                with context.begin_transaction():
-                    context.run_migrations()
+        if APP_ENV == "dev":
+            db_url = "postgresql://admin:[email protected]:5432/db"
+        else:
+            db_url = DATABASE_URL
+        connectable = engine_from_config(
+            context.config.get_section(context.config.config_ini_section),
+            prefix="sqlalchemy.",
+            poolclass=pool.NullPool,
+            url=db_url,
+        )
+        # Run migrations for app database
+        with connectable.connect() as connection:
+            context.configure(connection=connection, target_metadata=Base)
+            with context.begin_transaction():
+                context.run_migrations()
+
+
+def run_migrations_offline():
+    context.configure(url=DATABASE_URL)
+
+    with context.begin_transaction():
+        context.run_migrations()
+
+
+def run_migrations():
+    if context.is_offline_mode():
+        run_migrations_offline()
+    else:
+        run_migrations_online()
+
+
+run_migrations()