Fix MongoDB database boolean check - use 'is None' instead of truthiness

app/database.py

@@ -76,7 +76,7 @@ def log_api_call(
     """
     try:
         db = get_database()
-        if not db:
+        if db is None:
             logger.warning("MongoDB not available, skipping API log")
             return False
         
@@ -125,7 +125,7 @@ def log_image_upload(
     """
     try:
         db = get_database()
-        if not db:
+        if db is None:
             logger.warning("MongoDB not available, skipping upload log")
             return False
         
@@ -174,7 +174,7 @@ def log_colorization(
     """
     try:
         db = get_database()
-        if not db:
+        if db is None:
             logger.warning("MongoDB not available, skipping colorization log")
             return False
         

app/main.py

@@ -77,7 +77,7 @@ async def startup_event():
     """Initialize MongoDB on startup"""
     try:
         db = get_database()
-        if db:
+        if db is not None:
             print("✅ MongoDB initialized successfully!")
     except Exception as e:
         print(f"⚠️ MongoDB initialization failed: {e}")

app/main_fastai.py

@@ -110,7 +110,7 @@ async def startup_event():
     # Initialize MongoDB
     try:
         db = get_database()
-        if db:
+        if db is not None:
             logger.info("✅ MongoDB initialized successfully!")
     except Exception as e:
         logger.warning("⚠️ MongoDB initialization failed: %s", str(e))

app/main_sdxl.py

@@ -188,7 +188,7 @@ async def startup_event():
     # Initialize MongoDB
     try:
         db = get_database()
-        if db:
+        if db is not None:
             logger.info("✅ MongoDB initialized successfully!")
     except Exception as e:
         logger.warning("⚠️ MongoDB initialization failed: %s", str(e))