PostgreSQL + async refactoring, WebSocket server, Redis caching, minified assets

migrate_db.py

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+"""
+Миграция данных из SQLite в PostgreSQL.
+Запуск: python migrate_db.py
+Требует настроенного PostgreSQL (см. database.py)
+"""
+import sys
+from pathlib import Path
+sys.path.insert(0, str(Path(__file__).parent))
+
+from sqlalchemy import create_engine, text
+from sqlalchemy.orm import sessionmaker
+from database import DATABASE_URL, ASYNC_DATABASE_URL, Base, User, InventoryItem, CaseOpening, Contract
+from database import Achievement, UserAchievement, ActivityFeed, UserRPU, UpgradeRPU, Upgrade, PromoCode, TransactionLog
+
+# Sync SQLite source
+SOURCE_URL = DATABASE_URL
+# Sync PostgreSQL target (derive from async URL)
+TARGET_URL = ASYNC_DATABASE_URL.replace("+asyncpg", "").replace("+aiosqlite", "")
+
+if "sqlite" in SOURCE_URL:
+    print(f"Source: {SOURCE_URL}")
+    print(f"Target: {TARGET_URL}")
+    print("---")
+else:
+    print("Source already PostgreSQL — nothing to migrate.")
+    sys.exit(0)
+
+source_engine = create_engine(SOURCE_URL)
+target_engine = create_engine(TARGET_URL, pool_pre_ping=True)
+
+SourceSession = sessionmaker(bind=source_engine)
+TargetSession = sessionmaker(bind=target_engine)
+
+def migrate_table(model, target_session):
+    """Copies all rows from source model to target model"""
+    source_session = SourceSession()
+    try:
+        rows = source_session.query(model).all()
+        if not rows:
+            return 0
+        count = 0
+        for row in rows:
+            # Detach from source session
+            source_session.expunge(row)
+            target_session.merge(row)
+            count += 1
+        target_session.commit()
+        return count
+    except Exception as e:
+        target_session.rollback()
+        print(f"  ERROR: {e}")
+        return 0
+    finally:
+        source_session.close()
+
+def main():
+    print("Creating target tables...")
+    Base.metadata.create_all(bind=target_engine)
+    
+    target_session = TargetSession()
+    models = [
+        (User, "users"),
+        (UserRPU, "user_rpu"),
+        (UpgradeRPU, "upgrade_rpu"),
+        (InventoryItem, "inventory_items"),
+        (CaseOpening, "case_openings"),
+        (Contract, "contracts"),
+        (Achievement, "achievements"),
+        (UserAchievement, "user_achievements"),
+        (ActivityFeed, "activity_feed"),
+        (Upgrade, "upgrades"),
+        (PromoCode, "promo_codes"),
+        (TransactionLog, "transaction_log"),
+    ]
+    
+    for model, name in models:
+        print(f"Migrating {name}... ", end="", flush=True)
+        count = migrate_table(model, target_session)
+        print(f"{count} rows")
+    
+    target_session.close()
+    print("\nMigration complete! Set ASYNC_DATABASE_URL to the PostgreSQL URL to use it.")
+
+if __name__ == "__main__":
+    main()