Question

I would like to have Ajax form in Rails so i’m using form_remote_tag. The field
i would like to submit is email address – how can i use the Rails validations together
with form_remote_tag?

Answer 1

We’re using form_remote_tag with the :update option and paste the whole form into a partial.
Once the form is submitted and validation fails, the partial is being rendered again and all error messages will show up.

This is the workflow:

1. Call “edit” action
2. Display form from a partial, use form_remote_tag with :update option
3. Submit form to “update” action
4. Validate data
5. Validation failed? Display partial again with error messages
6. Validation passed? Display form with some success message