change wait_for_db file

app1/management/commands/wait_for_db.py

@@ -12,17 +12,19 @@ from django.core.management.base import BaseCommand
 
 class Command(BaseCommand):
     """ Django wait for DB"""
-    self.stdout.write('Waiting for Database ...')
-    db_up = False
-    while db_up is False:
-        try:
-            self.check(database=['default'])
-            db_up = True
-        except (Psycopg2OpError, OperationalError):
-            self.stdout.write('Database unavailable, waiting 1 sec...')
-            time.sleep(1)
+
+    def handle(self, *args, **options):
+        self.stdout.write('Waiting for Database ...')
+        db_up = False
+        while db_up is False:
+            try:
+                self.check(database=['default'])
+                db_up = True
+            except (Psycopg2OpError, OperationalError):
+                self.stdout.write('Database unavailable, waiting 1 sec...')
+                time.sleep(1)
     
-    self.stdout.write(self.style.SUCCESS('database ready !!'))
+        self.stdout.write(self.style.SUCCESS('database ready !!'))