By Tengu on

Hello masters :)

I hope someone from you can help me a little bit.

I have a multistep form with AHAH enhanced elements (with AHAH Helper). All runs fine.

Now I have to insert a new form element (a select) with AHAH. This is no problem, I render the new form element with drupal_render in the form definition directly in the output of the wrapper-div and build the form element before.

This new element have AHAH functionality too and THIS doesn't function. There is no reaction when I click in the select.

Can you help me please with a hint? Forget I something?

Thank you
Tengu

⋅ Categories: Drupal 6.x

Comments

yuriy.babenko’s picture

yuriy.babenko commented

Hi Tengu,

"Hierarchal AHAH elements" (AHAH elements creating other AHAH elements) are tricky business. I've done this before, but not recently so I can't give you any suggestions off the top of my head. I remember I had issues with missing entries in Drupal.settings JavaScript variables for AHAH elements that were also created through AHAH.

Have you seen the Conditional Fields module? It's a really handy tool for showing/hiding CCK fields based on the values of other fields. It might provide the functionality you're looking for.

---
Yuriy Babenko | Technical Consultant & Senior Developer
http://yuriybabenko.com

jaypan’s picture

jaypan
Location Victoria, BC
commented

In my AHAH callback function, this works for me:

// main bulk of callback function not shown
$output = drupal_render($changed_elements);
// this next section does the magic
$javascript = drupal_add_js(NULL, NULL);
if(isset($javascript['setting']))
{
	$output .= '<script type="text/javascript">jQuery.extend(Drupal.settings, '. drupal_to_js(call_user_func_array('array_merge_recursive', $javascript['setting'])) .');</script>';
}
print drupal_to_js(array('data' => $output, 'status' => true));

Contact me to contract me for D7 -> D10/11 migrations.

levacjeep’s picture

levacjeep commented

This has save me a bunch of headaches, been trying to solve this for the longest time.

Tengu’s picture

Tengu commented

Unfortunately the Conditional Fields module is not an option for me. The thingy with the drupal settings I remberered, yes. But I didn't find it in the net anymore :-(

I solved it now with hook_form_FORM_ID_alter. I define the new AHAH enhanced form element in this hook directly in the wrapper from the previous AHAH wrapper. A manual rendering isn't necessary then. So it's all fine. Surely not the smartest solution but it functions :)

Thanks :)