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Grid of terms in a block

Posted Tue, 09/02/2010 - 7:13pm by DrupalD
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This CodeLet show how to display terms in a vocabulary as block. The CodeLet will display the terms, along with term icon, if taxonomy image module is installed, in a grid of 4X4. The block is configurable. You can select which vocabulary to show the terms from. Its quite attractive and can be used on front page.

<?php
//$Id$


/**
* @file
*
* Display taxonomy tree in a block
*
* @author Drupal Developer
*/


/**
* Implementation of hook_block
*
* @param $op
* @param $delta
* @param $edit
* @return unknown_type
* @author Drupal Developer
*/
function browse_info_block($op = 'list', $delta = 0, $edit = array()) {
    switch ($op) {
        case 'list':
            $blocks[1] = array(
        'info' => t("Browse information by category"),
              'status' => 1,
              'region' => 'content',
              'weight' => 0,
            );
          
            return $blocks;
        case 'configure':
            $am__vocabulary = _get_vocabulary();
            $am__imagecache = _get_imagecache();
          
            $form['browse_vocabulary'] = array(
              '#type' => 'select',
              '#title' => t("Vocabulary"),
              '#options' => $am__vocabulary,
              '#default_value' => variable_get('browse_vocabulary_id', ''),
            );
            $form['imagecahce'] = array(
              '#type' => 'select',
              '#title' => t("Image size"),
              '#options' => $am__imagecache,
              '#default_value' => variable_get('imagecache_size', ''),
            );
            $form['image_size'] = array(
              '#type' => 'textfield',
              '#title' => t("Image size"),
              '#size' => 30,
              '#description' => t("Provide image size in WXH format.
                This value will be ignored if a size already selected from above ImageCache presets."),
              '#default_value' => variable_get('image_size', ''),
            );
            return $form;
        case 'save':
            switch ($delta) {
                case 1:
                    variable_set('browse_vocabulary_id', $edit['browse_vocabulary']);
                    variable_set('imagecache_size', $edit['imagecahce']);
                    variable_set('image_size', $edit['image_size']);
                    break;
            }
            break;  
        case 'view':
            switch ($delta) {
                case 1:
                    $block = array('subject' => t("Browse information by category"), 'content' => get_category_tree());
                    break;
            }
            return $block;
    }
}



/**
* get_category_tree
*
* Return the tree stucture
*
* @return unknown_type
* @author Drupal Developer
*/
function get_category_tree() {
    global $conf;
    $sn__vid = variable_get("browse_vocabulary_id", '');
    $am__term_tree = array();
    if (!$sn__vid) {
        drupal_set_message("You need to select a vocabulary for the block.");
    }
    else {
        $am__tree = taxonomy_get_tree($sn__vid, $parent = 0, $depth = -1, $max_depth = 2);
        foreach ($am__tree as $om__term) {
            if ($om__term->parents[0]) {
               $am__term_tree[$om__term->parents[0]][] = $om__term->tid;  
            }
        }
        $ss__imagecache = variable_get('imagecache_size', '');
    $ss__image_size = variable_get('image_size', '');
    if (empty($ss__imagecache)) {
        list($width, $height) = explode("X", $ss__image_size, -1);
        $am__attribute = array('width' => $width, 'height' => $height);
    }
      
        $output .= "<div style='clear:both;width:100%;'>
          <div style='float:left;width:100px;padding:3px;border:1px solid #DDD;margin:0px 8px 5px 0px;'>";
        $i = 0;
        $k = 1;
        foreach ($am__term_tree as $key => $an__child) {
      $j = 0;
            if($key) {
                if ($i == 4) {
                    $output .= ($key ? "</div></div><div style='clear:both;width:100%;'>
                      <div style='float:left;width:100px;padding:3px;
                      border:1px solid #DDD;margin:0px 8px 5px 0px;'>" : NULL);
                    $i = 0;
                }
        unset($om__term);
        $ss__image = db_result(db_query("SELECT path FROM {term_image} WHERE tid = %d", $key));
        $om__term = taxonomy_get_term($key);
        if ($ss__imagecache) {
          $ss__imagcache_name = db_result(db_query("SELECT presetname FROM
            {imagecache_preset} WHERE presetid = %d", $ss__imagecache));

          $output .= "<div>". theme('imagecache', $ss__imagcache_name,
            variable_get('taxonomy_image_path', 'category_pictures') ."/". $ss__image) ."</div>";
        }
        else {
          $output .= "<div>". theme('image',
            variable_get('taxonomy_image_path', 'category_pictures')
            ."/". $ss__image, '', $am__attribute, FALSE) ."</div>";
        }
        $i++;
        $output .= "<div><h4>". l($om__term->name,
          drupal_get_path_alias("taxonomy/term/". $om__term->tid)) ."</h4></div>";
        $output .= "<ul style='list-style:none;'>";
        foreach ($an__child as $value) {
          if ($j == 3) {
           $output .= "</ul><div style='text-align:right;width:100px;
             margin-bottom:10px;font-size:11px;padding: 0px 10px 0px 0px;'>".
             l(t("More") ."...", drupal_get_path_alias("taxonomy/term/".
             $om__term->tid)) ."</div>";
           break;
          }
          else {
            $om__child_term = taxonomy_get_term($value);
            $output .= "<li style='font-size:11px;border-bottom:1px solid #EEE;'>". l($om__child_term->name, "");
          }
?>

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Comments

joshi's picture
by joshi - 29/11/2010 - 1:06pm
5

Though this CodeLet is incomplete, its worth using it.
Its quite easy to extend this CodeLet and make it ready to use.
Thanks for publishing such a very useful CodeLet here.

Regards.

[url=http://joshics.in]JoshicsIN[/url]

DrupalD's picture
by DrupalD - 28/11/2010 - 5:45pm
5

Please note that this code is impcomplete.
This code will be updated soon.

Thank you.

[url=http://twitter.com/DrupalD][i]Drupa Developer - A Comprehensive Guild to Drupal Developersl[/i][/url]

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