[development] Set the CCK field value the the node is created

Chris Johnson cxjohnson at gmail.com
Mon Jun 22 20:05:13 UTC 2009

I've struggled with doing this, too.  I updated some of the CCK
developer documentation on drupal.org to Drupal 6 as I went along
figuring things out, but obviously only hit minor bits and pieces.

You can look at the source for the moodle module
(http://drupal.org/project/moodle) in the moodle.cckfield.inc file for
the development code I was last working on to do this a few months
ago.  It is a very hacked up copy of the computed field code, if I
remember correctly.

Please, please! -- if anyone figures out any pieces of how CCK works
in Drupal 6 -- add documentation below the top-level page at
http://drupal.org/node/101742 .

The only 2 people who know how it really works are the  maintainers,
and they're busy working on Drupal 7.


On Mon, Jun 22, 2009 at 12:05 PM, David Hautbois<david.hautbois at free.fr> wrote:
> I've done this using the CCK Computed Field.
> But I would like to learn more about CCK fields development.
> And my company give some time to do this...
> Thanks.
> David
> Brian Vuyk wrote:
>> Is it something that could be done using a CCK Computed Field? It allows
>> the field to be populated using PHP, and had the contents of the other
>> fields available to it.
>> Might be a little simpler than doing something in a module. Unless, of
>> course, you don't want it's function accessible from the frontend.
>> Brian
>> On 06/22/2009 12:44 PM, David Hautbois wrote:
>>> Hi
>>> I'm developping a custom CCK field for Drupal 6.
>>> I'm don't want the user set the value himself. So, this field has no
>>> widget.
>>> I'm looking for how to set the value when the node is saved. (the value
>>> is set when the node is created et not updated)
>>> In hook_field, I tried to use 'presave' ou 'validate' for $op, but I've
>>> some problems to work with it :
>>> - 'presave' seems to be called when the node is displayed...
>>> - when the node is created, the field has no value ($items[0]['value']
>>> does not exists)
>>> - ...
>>> I 've look in some others CCK fields, but no one work like this.
>>> I copied the text_field CCK field, renamed all 'text_field' references,
>>> simplified it and removed the widget.
>>> Can someone help me or point me to a good web page ? (not the CCK dev
>>> documentation !, I read it many times!)
>>> Thanks.
>>> David
>> --
>> *Brian Vuyk*
>> Web Design & Development
>> T: 613-534-2916
>> Skype: brianvuyk
>> brian at brianvuyk.com | http://www.brianvuyk.com

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