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Drupal cheat sheet

This will make you happy again.
Drupal cheat sheet

Over the years, we compiled quite a bit of source code bits in our blog. This is the result! If you are a developer, you'll love. If you are not a developer - let's call em *geeks*.

Links

http://api.drupal.org
http://api.drupal.org/api/drupal/developer--topics--forms_api_reference....
http://api.drupal.org/api/drupal/developer--topics--forms_api_reference....

Snippets

Manually set path auto paths - in nodeapi op=update, insert

 

<!--?php
if(module_exists('pathauto')) {
  _pathauto_include();
  $origPath = 'node/' . $node--->nid; $terms = taxonomy_node_get_terms_by_vocabulary($node, 1); $term = array_shift($terms); $title = str_replace('ä', 'ae', $node-&gt;title); $title = str_replace('ü', 'ue', $title); $title = str_replace('ö', 'oe', $title); $title = str_replace('!', '', $title); $pathAlias = pathauto_cleanstring(str_replace('&gt;', '', $term-&gt;name), true) . '/' . pathauto_cleanstring($title, true); path_set_alias($origPath, $pathAlias, null); } ?&gt;

 

Image Cache Usage

<?php
print theme('imagecache', $preset, $image['filepath'], $alt, $title,  $attributes); 
?>

Manually load a bunch of nodes with SQL

<?php
$nodes = array();
$sql = "SELECT nid FROM content_type_event";
$result = db_query($sql);
while ($result && ($object = db_fetch_object($result))) {
    $nodes[] = node_load($object->nid);
}
?>

Manually load a menu

<?php
$menu_global = menu_navigation_links("secondary-links", 0);
$menu1 = menu_navigation_links("primary-links", 0);
print theme('links', $menu1, array('class' => 'links_primary-links'));
?>

Add a javascript

<?php
drupal_add_js(drupal_get_path('theme', 'garland').'/custom.js');
?>

Get the nice url alias from raw path

<?php
drupal_get_path_alias('/node/'.$node->nid, $language->language)
?>

Manually filter text

<?php
$output_blogentry .= _filter_url(_filter_autop(($node->field_blog_content[0]['value'])), 2).'
?>

Programmatically output CCK node form

<?php
$node = new stdClass();
$node->type = 'blog';
$node->uid = $user->uid;
$node->name = $user->name; // Important!
module_load_include('inc', 'node', 'node.pages');
$output .= drupal_get_form('blog_node_form', $node);
?>

Form alter example

<?php
function custom_form_alter(&$form, $form_state, $form_id) {
    switch ($form_id) {
        case "search_form" :
            //debug($form);
            unset($form['title']); // unset the title
            break;
    }
}
?>

Node Api Example

<?php
function hook_nodeapi(&$node, $op, $a3 = NULL, $a4 = NULL) {
  switch ($op) {
    case 'presave':
      if ($node->nid && $node->moderate) {
        // Reset votes when node is updated:
        $node->score = 0;
        $node->users = '';
        $node->votes = 0;
      }
      break;
    case 'insert':
    case 'update':
      if ($node->moderate && user_access('access submission queue')) {
        drupal_set_message(t('The post is queued for approval'));
      }
      elseif ($node->moderate) {
        drupal_set_message(t('The post is queued for approval. The editors will decide whether it should be published.'));
      }
      break;
    case 'view':
      $node->content['my_additional_field'] = array(
        '#value' => theme('mymodule_my_additional_field', $additional_field),
        '#weight' => 10,
      );
      break;
  }
}
?>

Additional documentation: https://api.drupal.org/api/drupal/developer%21hooks%21core.php/function/...

 

Views programmatically Drupal 6

<?php
views_include('view');
$view = view::load('newsticker');
$view->execute();
return print_r($view->result, true);
?>

or

<?php
$output .= views_embed_view('viewname', 'default', $user->uid);
?>

http://groups.drupal.org/node/10129 page template depending on parameters

<?php
function custom_preprocess_page(&$vars) {
  if (arg(0)=='reservation') {
    $vars['template_files'] = array('page-iframe');
  }
 
  if (arg(0)=='ajax') {
    $vars['template_files'] = array('page-ajax');
  }
}
?>

http://api.drupal.org/api/function/template_preprocess_page/6 http://drupal.org/node/249726 form _validate _submit functions Drupal 6

<?php
drupal_get_form(myname_form, $my_param1, $my_param2);
function myname_form($form_state, $my_param1, $my_param2) {
}
function myname_form_validate($form, &$form_state) {
}
function myname_form_submit($form, &$form_state) {
}
?>

Drupal 5

<?php
drupal_get_form(myname_form);
function myname_form() {
}
function myname_form_validate($form_id, $form_values) {
}
function myname_form_submit($form_id, $form_values) {
}
?>

create node programmatically Drupal 6

<?php
$reservation = new StdClass();
$reservation->type = 'reservation';
$reservation->field_reservation_tickets[0]['value'] = $form_state['values']['anzahl_tickets'];
$reservation->field_reservation_email[0]['value'] = $form_state['values']['email'];
$reservation->field_reservation_telefon[0]['value'] = $form_state['values']['telefon'];
$reservation->field_reservation_veranstaltung[0]['nid'] = $form_state['values']['veranstaltung_nid'];
$reservation->field_reservation_vorname[0]['value'] = $form_state['values']['vorname'];
$reservation->title = $form_state['values']['name'];
$reservation->taxonomy = array($form_state['values']['tickettyp'], array_shift(taxonomy_node_get_terms_by_vocabulary($veranstaltung, 1)));

node_save($reservation);
?>

http://drupal.org/node/408540

 

Drupal 5

<?php
$reservation = new StdClass();
$reservation->type = 'reservation';
$reservation->field_reservation_tickets[0]['value'] = $form_state['values']['anzahl_tickets'];
$reservation->field_reservation_email[0]['value'] = $form_state['values']['email'];
$reservation->field_reservation_telefon[0]['value'] = $form_state['values']['telefon'];
$reservation->field_reservation_veranstaltung[0]['nid'] = $form_state['values']['veranstaltung_nid'];
$reservation->field_reservation_vorname[0]['value'] = $form_state['values']['vorname'];
$reservation->title = $form_state['values']['name'];
$reservation->taxonomy = array($form_state['values']['tickettyp'], array_shift(taxonomy_node_get_terms_by_vocabulary($veranstaltung, 1)));

node_submit($reservation); // This step is needed only in Drupal 5, not in Drupal 6.
node_save($reservation);
?>

Basic Drupal 6 Form

<?php
function woof_form($title, $body) {
  $form['wooftitle'] = array(
    '#type'=> 'textfield',
    '#title' => t('Woof'),
    '#default_value' => $title,
    '#required' => TRUE,
  );
 
  $form['woofbody'] = array(
    '#type'=> 'textarea',
    '#rows' => '20',
    '#title' => t('Woof'),
    '#default_value' => $body,
    '#required' => TRUE,
  );
 
  $form['submit'] = array(
    '#type'=> 'submit',
    '#title' => t('Speichern'),
    '#default_value' => 'Speichern',
    '#required' => TRUE,
  );
  return $form;
}
?>

Form alter

<?php
function fflyr_form_alter(&$form, $form_state, $form_id) {
    if ($form_id == 'flyer_node_form') {
        unset($form['buttons']['preview']);
        unset($form['body_field']['format']);
        unset($form['body_field']['teaser_include']);
    }   
}
?>

<?php
taxonomy_node_get_terms_by_vocabulary();
taxonomy_node_get_terms();
?>

render a block

<?php
$block = module_invoke('block', 'block', 'view', $block_id);
print $block['content'];
?>

Handling ISO date with MySQL

<?php
$where[] = " DATE_FORMAT(STR_TO_DATE(field_date_value , '%%Y-%%m-%%dT%%H:%%i:%%s'), '%%Y-%%m-%%d') = '".date('Y-m-d')."' ";
?>

Populate CCK Node Reference Field and hide it Drupal 6

<?php
function yourmodule_form_alter(&$form, $form_state, $form_id) {
   $form['#after_build'][] = 'yourmodule_after_build';
}

function yourmodule_after_build($form, &$form_state) {
   switch ($form['form_id']['#value']) {
     case 'your_form':
        $form['field_event_portal_nid']['nid']['nid']['#value'] = (int) arg(3);
        $form['field_event_portal_nid']['#access']  = false;
        break;
    }
  return $form;
}
?>

Drupal 6

<?php
user_is_logged_in();
?>

useful in hook_menu

<?php
$items['dashboard/overview'] = array(
  'title' => t('My Dashboard'),
  'page callback' => 'page_dashboard',
  'access callback' => 'user_is_logged_in',
);
?>

CCK Checkbox PHP Code with correct Label display

<?php
return array(0=>'Image as Popup', 1=>'Image as Popup');
?>

Date Field for a form Drupal 6

<?php
$date = '2008-12-31';  // Provide a default date in the format YYYY-MM-DD HH:MM:SS.

// Provide a format using regular PHP format parts (see documentation on php.net).
// If you're using a date_select, the format will control the order of the date parts in the selector,
// rearrange them any way you like. Parts left out of the format will not be displayed to the user.
$format = 'm/d/Y';

$form['my_date_field'] = array(
'#type' => 'date_text', // types 'date_popup', 'date_select', 'date_text' and 'date_timezone' are supported. See .inc file.
'#title' => t('Select a date'),
'#default_value' => $date,
'#date_format' => $format,
'#date_label_position' => 'within', //  'above', 'within' or 'none', default is 'above'
'#date_timezone' => 'America/Los Angeles', // Optional, if your date has a timezone other than the site timezone.
'#date_increment' => 15, // Optional, used by the date_select and date_popup elements to increment minutes and seconds.
'#date_year_range' => '-3:+3' // Optional, used to set the year range (back 3 years and forward 3 years is the default).
);
?>

http://drupal.org/node/290758 Avoid wrong count query on theme_pager. remove newlines and whitespaces before using pager_query

<?php
$sql = str_replace(array("\n", "\r", "\t"), ' ', $sql);
$result = pager_query($sql);
?>

Preserve Menu context

<?php
$item = menu_get_item();
if ($item) {
  $item['href'] = 'job-vacancies'; //Menueintrag (Pfad) unter dem der Node angezeigt werden soll
  menu_set_item(NULL, $item);
}
?>

pragmatically change user form

<?php
function custom_theme(){
  $register['user_profile_form'] = array(
               'arguments' => array('form' => NULL),
               //'template' => 'user-profile-form',
           );
     
  return $register;
}

function custom_user_profile_form($form) {
  $output = theme_part(t('Benutzer erfassen/bearbeiten'), drupal_render($form)); 
  return $output;
}
?>

how to change nodereference options title or value or whatever

<?php
function custompresseberichte_form_alter(&$form, $form_state, $form_id) {
  if ($form_id == 'pressebericht_node_form') {
    $form['field_pb_standorte_rel']['#pre_render'] = array('custompresseberichte_form_pre_render');
    $form['field_pb_standorte_rel']['#post_render'] = array('custompresseberichte_form_post_render');
  }
}

function custompresseberichte_form_pre_render($form) {
  if (is_array($form['nid']['nid'])) {
    foreach($form['nid']['nid'] as $key => $value) {
      if (is_numeric($key)) {
        $node = node_load($key);
        $form['nid']['nid'][$key]['#title'] = $node->title .' - '.$node->field_standort_bezeichnung[0]['value'];
      }
    }
  }
  return $form;
}

function custompresseberichte_form_post_render($content, $element) {
  return $content;
}
?>

http://drupal.org/node/339730 Enable attachments (upload module) in your custom form.

<?php
function MY_MODULE_my_form_node_form($form_state, $node) { //important that your $form_id ends with 'node_form'
  $form = array();

  //add node values to the form
  $form['#node'] = $node;
  $form['type'] = array('#value'=>'MY_MODULE_my_form');

  $form['my_textfield'] = array(
    '#type' => 'textfield',
    '#title' => t('textfield'),
    '#default_value' => $node->field_my_textfield[0]['value'],
    );
 
  $form['#submit'][] = 'upload_node_form_submit';
  $form['#submit'][] = 'MY_MODULE_my_form_node_form_submit';

  return $form;
}

function MY_MODULE_my_form_node_form_submit($form, &$form_state) {
  $nid = (int) $form_state['values']['nid'];
  $node = node_load($nid, NULL, true);
 
  $node->field_my_textfield[0]['value'] = $form_state['values']['my_textfield'];
 
  //add files to the node
  if (is_array($form_state['values']['files'])) {
    foreach($form_state['values']['files'] as $fid => $file) {
      $node->files[$fid] = $file;
    }
  }
  node_save($node);
}
?>

Include required files

<?php
require_once('./'. drupal_get_path('module', 'custommodule') ."/myinclude.inc.php");
?>

Add captcha programmatically to any Drupal form

<?php
$form['my_captcha_element'] = array(
     '#type' => 'captcha',
     '#captcha_type' => 'captcha/Math',
     //'#captcha_type' => 'image_captcha/Image',
     '#suffix' => '</div>'
   );
?>

Imagecache: save preset and actions pragmatically

<?php
$new_preset = array(
 'presetid' => '',
  'presetname' => 'user_pic_xs'
);
$preset = imagecache_preset_save($new_preset);

$action = array(
  'presetid' => $preset['presetid'],
  'actionid' => '',
  'action' => 'imagecache_scale',
  'data' => array(
    'width' => 100,
    'height' => '',
    'upscale' => 0
  )
);
imagecache_action_save($action);

$action = array (
  'presetid' => $preset['presetid'],
  'actionid' => '',
  'action' => 'imagecache_crop',
  'data' => array (
    'width' => 32,
    'height' => 32,
    'xoffset' => 'center',
    'yoffset' => 'center'
  )
);
imagecache_action_save($action);
?>

 

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