[development] node not fully loaded in hook_view() when previewing

[larry at garfieldtech.com]

augustin (beginner) wrote:
> Hello,
> 
> In a module with its own node type, the node is not fully loaded when using 
> preview.
> 
> In hook_load(), I return my own extra fields to the node:
> return array('mynodetype' => $extra);
> 
> In hook_view(), $node->mynodetype is set when viewing the node, but not when 
> editing then previewing the same node. Isn't the node loaded as for a normal 
> node view?
> 
> 
> I've searched drupal.org but didn't find anything terribly useful.
> 
> I found this old forum post:
> Philosophy of 'Preview'
> http://drupal.org/node/126750
> 
> And this old core issue, which I had helped reviewing at the time, but which 
> is supposed to be fixed (though it was not said how it was fixed):
> node previews broken by missing hook_submit
> http://drupal.org/node/104047
> 
> 
> Is this a known issue?

Sort of.  Remember that despite being called $node what you get for 
preview and insert/update hooks is NOT a node object.  It's 
$form_state['values'].  Unless you call node_save() yourself from 
soemwhere, in which case it IS a node object.  Thus you need to 
structure your node data and your node form additions to parallel each 
other, or stuff breaks horribly in horrific ways.

This is a known design flaw in the node system.  It royally sucks on 
innumerable levels.  I think the most likely solution in the long run is 
"if it's not a Field, sucks to be you, use Fields".

Not a great solution, but it is what it is.

--Larry Garfield