problems with hook_form_alter()

Question

function heihachi_form_alter(&$form, $form_state, $form_id) {
    if ($form_id == 'ipaper_node_form') {
           unset($form['body']);
        }
}

the code above removed body field in node/add/ipaper. But how can i remove body inside a node? (mysite.com/node/4420 for example).

And 2nd question is: i did print_r($form) inside mymodule.module and now im watching in the page source code and see this:

Array
{

    [#node] => stdClass Object
        (
            [uid] => 1
            [name] => heihachi

i am on the right way if i use this construction to print the name for example: $form['#node'] => ['name'] ?? Guess not.. :) That stdClass Object is confusing me :(

Answer 1

A better approach is to edit the content type settings and omit body altogether.

In Drupal 6, you can do this by going to /admin/content/types/ipaper and leave the "Body field label" empty.

In Drupal 7, go to /#overlay=admin/structure/types/manage/ipaper/fields and delete the Body field.

If you really need to keep old content in the node body, then use hook_nodeapi() with $op == 'view to unset $node->body

Answer 2

The if $form['body'] is where the output is being sourced from, unset should work fine, but as this is form_alter I'm not entirely sure whether the node will already have been rendered by the time it's called.

You'll be able to get to the node name using:

$form['#node']->name

rather than:

$form['#node']['name'] 

which would be what you'd use if it was an array rather than an object

Answer 3

You should implement hook_nodeapi:

function heihachi_nodeapi(&$node, $op, $a3 = NULL, $a4 = NULL) {
  if ($op == 'prepare') {
    unset($node->body);
  }