The list_example didn't update instantly

[yodalee]

I got one problem that after add/edit/delete an example, the result won't update instantly.
Manually reload the page to see the modification is needed.
This will cause the problem that if user click the delete button, the message won't disappear. The user can press the delete button second time and the website will crash.

[yodalee]

I found that this issue is caused by the way I fetch database, not the template problem.