Populate a field action

hm, this might be a mighty feature - so let's get it right.

* manually entering the field name is bad usability - provide a select box with all available fields. Perhaps with a note that only fields, that are really there in the later given node will work.
* I think this 'append' thing is too dangerous, as CCK doesn't do the handling of 'multiple' itself, but the field modules do. So each module treats this different, e.g. checkboxes and textfields. So probably it's best to leave this out for now.
* Setting the value of the field by simple string won't do it for many fields.
* Setting the value would ideally work like setting the default value in the CCK admin interface - use the native widget or for advanced users have php support. I'd be also ok with php support only. Of course we need to some help there at least like CCK does for the default value setting.

awesome, thanks! The validation of the values is great.

* I've fixed the typo in populate which was all over the patch!
* array_combine is php5 only, we need to make this php4 compatible.

apart from that, it's working great! I've attached the updated patch.

You can create a php4 function for it, as it's quite short:

function array_combine($arr1,$arr2) {
   $out = array();
   foreach($arr1 as $key1 => $value1)    {
    $out[$value1] = $arr2[$key1];
   }
   return $out;
} 

thanks. committed to 5.x-dev :) great!