How can I handle errors in Flask forms?

How can I handle errors in Flask forms?

You can handle errors in Flask forms by using the validate_on_submit() method and checking for errors in the form object.

Can you give me an example of how to implement that?

Sure! You can create a form class and use it in your route. If the form is not valid, you can display the errors.

What if I want to customize the error messages?

You can customize error messages by setting the message attribute in the form field definitions.

Is there a way to display errors on the same page?

Yes, you can render the form with error messages in your template, allowing users to correct their input without losing data.