[App Service] Fix #29512: az webapp config backup update: Fix str object has no attribute name (#30986)

Author: seligj95

src/azure-cli/azure/cli/command_modules/appservice/_params.py

@@ -631,7 +631,7 @@ def load_arguments(self, _):
     with self.argument_context('webapp config backup') as c:
         c.argument('storage_account_url', help='URL with SAS token to the blob storage container',
                    options_list=['--container-url'])
-        c.argument('webapp_name', help='The name of the web app',
+        c.argument('webapp_name', help='The name of the web app', options_list=['--webapp-name', '-n'],
                    local_context_attribute=LocalContextAttribute(name='web_name', actions=[LocalContextAction.GET]))
         c.argument('db_name', help='Name of the database in the backup', arg_group='Database')
         c.argument('db_connection_string', help='Connection string for the database in the backup',

src/azure-cli/azure/cli/command_modules/appservice/custom.py

@@ -3311,10 +3311,10 @@ def update_backup_schedule(cmd, resource_group_name, webapp_name, storage_accoun
 
     db_setting = _create_db_setting(cmd, db_name, db_type=db_type, db_connection_string=db_connection_string)
 
-    backup_schedule = BackupSchedule(frequency_interval=frequency_num, frequency_unit=frequency_unit.name,
+    backup_schedule = BackupSchedule(frequency_interval=frequency_num, frequency_unit=frequency_unit,
                                      keep_at_least_one_backup=keep_at_least_one_backup,
                                      retention_period_in_days=retention_period_in_days)
-    backup_request = BackupRequest(backup_request_name=backup_name, backup_schedule=backup_schedule,
+    backup_request = BackupRequest(backup_name=backup_name, backup_schedule=backup_schedule,
                                    enabled=True, storage_account_url=storage_account_url,
                                    databases=db_setting)
     return _generic_site_operation(cmd.cli_ctx, resource_group_name, webapp_name, 'update_backup_configuration',