add admin user depart records

db/migrate/20210204114641_create_admin_departs.rb

@@ -12,7 +12,7 @@ class CreateAdminDeparts < ActiveRecord::Migration
       t.column :remark, :string,:limit => 256
       t.timestamps
     end
-    add_index :admin_departs, :room_id
+    add_index :admin_departs, :admin_user_id
   end
 
   def down