Drupal Consultant

Snippets

Apache Solr on Ubuntu 10.04 running on Jetty

Submitted by ivan on Fri, 25/06/2010 - 21:02

Here are my notes on how to setup Apache Solr for a Drupal site on Linode hosting.

Prepare

Make sure you are up to date.

apt-get update
apt-get upgrade --show-upgraded

Set your host name.[^1]

echo "awesomeserver" > /etc/hostname
hostname -F /etc/hostname

Install Java

You must install Java.

apt-get install openjdk-6-jdk

Install Apache Solr

Go to src director.

cd /usr/local/src

Download Solr.

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Set taxonomy option by code

Submitted by ivan on Sun, 14/02/2010 - 16:44

You'll need to create a custom module and use the hook_form_alter() function.

function example_form_alter(&$form, $form_state, $form_id) {
  $form['taxonomy'][2]['#default_value'] = array(0 => $term->tid);
}

Please note that the $form['taxonomy'][2]['#default_value'] is the vocabulary id.

Change select options within a nodereference

Submitted by ivan on Sun, 14/02/2010 - 16:34

First you'll have to make use of hook_form_alter() function.

function example_form_alter(&$form, $form_state, $form_id) {
  $form['field_example_reference']['#pre_render'] = array('example_change_node_reference');
}

Now the node reference will look for a example_change_node_reference() function which will return an array of options.

function example_change_node_reference($element) {
      $element['nid']['nid']['#options'] = array($node->nid => $node->title);
  return $element;
 
}

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How to load a theme region

Submitted by ivan on Sun, 06/12/2009 - 18:00

How to load a theme region within code:

print theme('blocks', 'example_node');

How to load comments anywhere within a template

Submitted by ivan on Sun, 06/12/2009 - 17:58

Use the following code to load the comment anywhere:

    if (function_exists('comment_render') && $node->comment) {
       print comment_render($node, $node->cid);
       $node->comment = NULL;
    }

How to just load the exposed views filter

Submitted by ivan on Sun, 06/12/2009 - 17:55

Example of how to load just the exposed views filter:

      $view = views_get_view('example_views');
      if($view){
        $view->set_display('page_1');
        $view->init_handlers();
        $form_state = array(
          'view' => $view,
          'display' => $view->display_handler->display,
          'method' => 'get',
          'rerender' => TRUE,
          'no_redirect' => TRUE,
        );
        $output = drupal_build_form('views_exposed_form', $form_state);
      }else{

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Embedding views

Submitted by ivan on Sun, 06/12/2009 - 17:53

Example of how to embed a view using views:

print views_embed_view('example_views', 'block_1', $arg)

Using theme_imagecache

Submitted by root on Sun, 06/12/2009 - 17:50

How to use imagecache in templates:

theme('imagecache', $preset, $image, $alt);

Using hook_theme

Submitted by ivan on Sun, 06/12/2009 - 17:08

Example of using hook_theme.

/**
 * Implementation of hook_theme().
 */
function example_theme() {
  return array(
    'example_taxonomy' => array(
      'template' => 'example-taxonomy',
      'arguments' => array('node' => NULL, 'options' => NULL),
    ),
    'example_taxonomy_terms' => array(
      'arguments' => array('voc' => NULL, 'node' => NULL, 'options' => NULL),
    ),
    'example_front_page' => array(
      'template' => 'example-front-page',
      'arguments' => array(),
    ),

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Creating menus with hook_menu

Submitted by ivan on Wed, 25/11/2009 - 20:47

Example of using hook_menu.

1. Create a empty page with no menu item.

function example_menu() {
  $items['page/page'] = array(
    'page callback' => 'example_page',
    'access arguments' => array('access content'),
    'type' => MENU_CALLBACK
    );
  return $items;
}
 
function example_page() {
  return 'example page';
}

2. Create admin page.

function example_menu() {
  $items['admin/settings/example'] = array(
    'title' => 'Example config',

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