Fix scheduler

backend/server/adventures/scheduler.py

@@ -1,11 +1,12 @@
-# scheduler.py
-
 import logging
 from apscheduler.schedulers.background import BackgroundScheduler
 from django_apscheduler.jobstores import DjangoJobStore
 from django_apscheduler import util
 from django.conf import settings
 from django.core.management import call_command
+from django.db import connections
+from django.db.utils import OperationalError
+import time
 
 logger = logging.getLogger(__name__)
 
@@ -17,11 +18,31 @@ def run_worldtravel_seed():
     except Exception as e:
         logger.error(f"Error in worldtravel-seed job: {str(e)}")
 
+def database_ready():
+    db_conn = connections['default']
+    try:
+        db_conn.cursor()
+    except OperationalError:
+        return False
+    else:
+        return True
+
 @util.close_old_connections
 def start_scheduler():
     scheduler = BackgroundScheduler(timezone=settings.TIME_ZONE)
     scheduler.add_jobstore(DjangoJobStore(), "default")
 
+    # Wait for the database to be ready
+    retry_count = 0
+    max_retries = 2  # Set to 2 attempts
+    while not database_ready():
+        if retry_count >= max_retries:
+            logger.error("Database not available after 2 attempts. Scheduler not started.")
+            return None
+        logger.info("Database not ready. Waiting before retry...")
+        time.sleep(2)  # Wait for 2 seconds before retrying
+        retry_count += 1
+
     scheduler.add_job(
         run_worldtravel_seed,
         trigger="interval",