Nuevos cambios en el servidor

backend/migrations/env.py

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+from logging.config import fileConfig
+import os
+from sqlalchemy import create_engine, pool
+from sqlalchemy.ext.asyncio import AsyncEngine, create_async_engine
+from sqlalchemy.engine import engine_from_config
+from alembic import context
+import asyncio
+
+# Import Base and all models
+from app.core.database import Base
+from app.models import tenant  # Import all models explicitly
+
+# Alembic Config object
+config = context.config
+
+# Logging configuration
+if config.config_file_name:
+    fileConfig(config.config_file_name)
+
+# Get DATABASE_URL and convert to synchronous
+DATABASE_URL = os.getenv("DATABASE_URL")
+if not DATABASE_URL:
+    raise RuntimeError("DATABASE_URL environment variable is not set")
+
+SYNC_DATABASE_URL = DATABASE_URL.replace("+asyncpg", "")
+
+# Metadata for autogenerate
+target_metadata = Base.metadata
+
+
+def run_migrations_offline():
+    """
+    Run migrations in 'offline' mode.
+    """
+    context.configure(
+        url=SYNC_DATABASE_URL,
+        target_metadata=target_metadata,
+        literal_binds=True,
+        dialect_opts={"paramstyle": "named"},
+    )
+
+    with context.begin_transaction():
+        context.run_migrations()
+
+
+async def run_migrations_online():
+    """
+    Run migrations in 'online' mode.
+    """
+    # Fetch the URL from Alembic configuration
+    alembic_config = config.get_section(config.config_ini_section)
+    alembic_config["sqlalchemy.url"] = DATABASE_URL  # Use async URL
+
+    connectable: AsyncEngine = create_async_engine(
+        DATABASE_URL,
+        poolclass=pool.NullPool,
+    )
+
+    async with connectable.connect() as connection:
+        await connection.run_sync(
+            lambda sync_connection: context.configure(
+                connection=sync_connection, target_metadata=target_metadata,
+                compare_type=True  # Ensure column types are compared
+            )
+        )
+        await connection.run_sync(context.run_migrations())
+
+    asyncio.run(do_run_migrations())
+
+
+if context.is_offline_mode():
+    run_migrations_offline()
+else:
+    run_migrations_online()