Remove Preview button in custom node

hi nasium,

I don't know if you're still interested in this - I found your post because I was looking for the same thing and found it from here: http://drupal.org/node/62319

First I was a bit scared of going for my (first) own 'module' - but it is really not that dramatic.. For drupal 5.x you just need the .module and the .info file and throw the function (as descriped on http://drupal.org/node/62319) in that .module-file and that's basically it..

I added a form_id-check to control which form has a preview button and which form not.. - ..the 'echo' is there to find out what form_id I have on a specific page - here's my code for hiding the preview button from the comments and from mycontenttype:

function mymodulename_form_alter($form_id, &$form) {

// echo("form_id".$form_id);

if(($form_id=="mycontenttype_node_form")||($form_id=="comment_form")) {
  unset ($form['preview']);
}
}

..hope it helps..

greetings, t..

___________________________
my pictures: www.bilderbook.org

// $Id:

/**
* Implementation of hook_menu
*
* For settings page
*/
function nopreview_menu($may_cache) {
  $items = array();
  if ($may_cache) {
    $items[] = array(
      'path' => 'admin/settings/nopreview',
      'access' => user_access('administer site configuration'),
      'title' => t('Hide Preview Buttons'),
      'description' => t('Hide Preview Buttons by content type.'),
      'callback' => 'drupal_get_form',
      'callback arguments' => array('nopreview_settings_form'),
      'type' => MENU_NORMAL_ITEM,
    );
  }
  return $items;
}

/**
* Form function for settings
*/

function nopreview_settings_form() {
  $options = array('yes','no');
  $node_types = node_get_types('names');
  $node_previews = variable_get('nopreview_node_types', array());
  $form['description'] = array(
    '#tyoe' => 'markup',
    '#weight' => '-100',
    '#value' => t('Use these settings to configure which content types to hide the preview button for'),
  );
  $form['nopreview_node_types'] = array(
      '#tree' => TRUE,
      '#type' => 'fieldset',
      '#collapsible' => TRUE,
      '#collapsed' => FALSE,
      '#title' => t('Preview button by node type'),
  );
  foreach ($node_types as $key => $value) {
    $form['nopreview_node_types'][$key] = array(
      '#type' => 'select',
      '#title' => t('Show Preview button for'). " $value",
      '#default_value' => $node_previews[$key],
      '#options' => $options,
    );
  }
  
  return system_settings_form($form);
}

/**
* Hide the buttons
*/
function nopreview_form_alter($form_id, &$form) {

  $nopreviews = variable_get('nopreview_node_types', array());

  if ($nopreviews[$form['type']['#value']] == 1) {
    unset ($form['preview']);
  }
}

Hiding PREVIEW button for one specific page with css: http://drupal.org/node/194890#comment-1161353

---

How to contribute to Drupal.

nopreview.module

<?php

// $Id:

/**
* Implementation of hook_menu
*
* For settings page
*/
function nopreview_menu() {
    $items = array();
    $items['admin/settings/nopreview'] = array(
      'title' => 'Hide Preview Buttons',
      'description' => 'Hide Preview Buttons by content type.',
      'page callback' => 'drupal_get_form',
      'page arguments' => array('nopreview_settings_form'),
      'access arguments' => array('administer imageapi'),
    );
  return $items;
}

/**
* Form function for settings
*/

function nopreview_settings_form() {
  $options = array('yes','no');
  $node_types = node_get_types('names');
  $node_previews = variable_get('nopreview_node_types', array());
  $form['description'] = array(
    '#tyoe' => 'markup',
    '#weight' => '-100',
    '#value' => t('Use these settings to configure which content types to hide the preview button for'),
  );
  $form['nopreview_node_types'] = array(
      '#tree' => TRUE,
      '#type' => 'fieldset',
      '#collapsible' => TRUE,
      '#collapsed' => FALSE,
      '#title' => t('Preview button by node type'),
  );
  foreach ($node_types as $key => $value) {
    $form['nopreview_node_types'][$key] = array(
      '#type' => 'select',
      '#title' => t('Show Preview button for'). " $value",
      '#default_value' => $node_previews[$key],
      '#options' => $options,
    );
  }
 
  return system_settings_form($form);
}

/**
* Hide the buttons
*/
function nopreview_form_alter(&$form, $form_state, $form_id) {

  $nopreviews = variable_get('nopreview_node_types', array());

  if ($nopreviews[$form['type']['#value']] == 1) {
    unset($form['buttons']['preview']);
  }
}
?>

nopreview.info

name = No-Preview Button
description = Remove preview button (especially for courses)
package = Other
core = 6.x

version = "6.x-1.0"
core = "6.x"
project = "No-Preview Button"

could the proposed solution(s) find its way into contributed modules?

Just for the record:
http://drupal.org/project/preview

then go to "Post Settings" and there you can globally disable the preview button.

guys, just give it an access = 0 to almost anything you want to hide in the form..
this is something that I've been using for a long time now and it's better than unset because sometime doing unset breaks down the form.. once I've tried to hide the path and menu items (collapsible) by unsettling them and the nodes would not appear in proper places.. but hiding is not an extreme solution as unsettling, because everything is still there, you just choose to hide it in the form that the user is previewing.

example - Hiding the preview button.

ModuleName_form_alter(&$form, &$form_state, $form_id) {
$form['preview']['#access'] = 0;
}

Remeber that that first you have to put preview settings optional.. it's not wise to hide something that is required.. you can put preview optionally by going to the content type settings (under edit)

hope this helps..
take care..

Folks,

In Drupal 7, unset ($form['preview']); does not un-set the preview button.
The following does not work either:
unset ($form['preview']);
unset($form['buttons']['preview']);
$form['preview']['#access'] = 0;
$form['preview'] = null;
And yes, I did enable my module, and the naming conventions are correct. I cleared the cache every time I made a change to the module.

Does anyone know why this little tiny thing is so difficult in version 7? And more importantly, how to get it to work?

Thanks

p.s. I installed and enabled the "preview" module, and it doesn't work either! (http://drupal.org/project/preview)

In response to Jag339, the correct way to do this for Drupal 7, through hook_form_alter, in a custom module, is:

unset($form['actions']['preview']);

using ['buttons'] does not work.

Matt