Question

I created a form in Drupal 7 and want to use AJAX. I added this to the submit button array:

"#ajax" => array(
  "callback" => "my_callback",
  "wrapper" => "details-container",
  "effect" => "fade"
)

This works but the whole validation function is ignored. How can I validate the form before my_callback() is called? And how can I display the status or error messages on a AJAX form?

Answer 1

Ok, I figure it out. Apparently you should return an array on your ajax callback function, not just a text message…

Something like this:

return array("#markup" => "<div id='wrapper'></div>");