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<?php
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// $Id: term_popular.module,v 1.3 2006/05/13 20:40:56 frjo Exp $
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/**
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* @file
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* Original author: fajerstarter
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* From http://drupal.org/node/22036
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* Modified by Fredrik Jonsson fredrik at combonet dot se
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* Display a page with weighted tag cloud (as seen on Flickr and Technocrati).
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*/
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/**
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* Implementation of hook_help().
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*/
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function term_popular_help($section) {
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switch ($section) {
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case 'admin/modules#description':
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return t('Display a page with weighted tag cloud with your categories (as seen on Flickr and Technocrati).');
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break;
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case 'term_popular':
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return '<p>'. variable_get('term_popular_message', '') .'</p>';
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break;
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}
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}
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/**
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* Implementation of hook_settings().
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*/
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function term_popular_settings() {
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$form['term_popular_message'] = array(
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'#type' => 'textarea',
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'#title' => t('Popular categories message'),
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'#default_value' => variable_get('term_popular_message', ''),
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'#cols' => 60,
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'#rows' => 5,
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'#description' => t('Define a message to be displayed above the popular categories.'),
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);
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$vocab_options = array();
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foreach (taxonomy_get_vocabularies() as $vocabulary) {
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$vocab_options[$vocabulary->vid] = $vocabulary->name;
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}
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$form['term_popular_show_vocabularies'] = array(
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'#type' => 'checkboxes',
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'#title' => t('Select which vocabularies to be included on the page'),
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'#default_value' => variable_get('term_popular_show_vocabularies', array()),
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'#options' => $vocab_options,
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);
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$form['term_popular_max_terms'] = array(
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'#type' => 'textfield',
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'#title' => t('Maximum number of terms'),
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'#default_value' => variable_get('term_popular_max_terms', 100),
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'#size' => 4,
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'#maxlength' => 5,
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'#description' => t('Specify how many subcategories should be included on the categorie page. Enter "all" to include all subcategories or "0" to include no subcategories.'),
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);
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return $form;
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}
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/**
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* Implementation of hook_menu().
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*/
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function term_popular_menu($may_cache) {
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$items = array();
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if ($may_cache) {
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$items[] = array(
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'path' => 'term_popular',
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'title' => t('popular categories'),
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'callback' => 'term_popular_page',
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'access' => user_access('access content'),
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'type' => MENU_SUGGESTED_ITEM
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);
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}
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return $items;
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}
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/**
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* Return a list of popular terms in HTML.
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*/
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function term_popular_list($text_scale = 3) {
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$vocabulary_fields = variable_get('term_popular_show_vocabularies', array());
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$max = variable_get('term_popular_max_terms', 100);
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if ($vocabulary_fields != NULL && $max != NULL) {
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$result = db_query('SELECT * FROM {term_data} WHERE vid IN (%s)', implode(', ', $vocabulary_fields));
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while ($term = db_fetch_object($result)) {
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$term_names[$term->tid] = $term->name;
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$popularity[$term->tid] = taxonomy_term_count_nodes($term->tid) ;
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}
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arsort($popularity);
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$popularity_temp = $popularity;
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$most_popular = (array_shift($popularity_temp));
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natcasesort($term_names);
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$i = 1;
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while (list($key, $val) = each($term_names) and $i <= $max) {
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if ($popularity[$key] > 0) {
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$output .= '<span style="font-size: '. round(($popularity[$key] / $most_popular * $text_scale) + 1, 1) . 'em">' . l( $val, 'taxonomy/term/'. $key .'/all') . '</span>' . "\n";
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$i++;
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}
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}
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return $output;
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}
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}
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/**
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* Theme Popular Terms page
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*/
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function term_popular_page() {
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$text_scale = 3;
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$output = '<div class="box term_popular">';
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$output .= term_popular_list($text_scale);
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$output .= '</div>';
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print theme('page', $output);
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}
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/**
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* Implementation of hook_block().
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*
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* Generates a block with Popular Terms.
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*/
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function term_popular_block($op = 'list', $delta = 0) {
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if ($op == 'list') {
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$blocks[0]['info'] = t('Popular categories');
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return $blocks;
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}
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else if ($op == 'view') {
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if (user_access('access content')) {
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$text_scale = 2;
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$output = term_popular_list($text_scale);
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$output .= '<div class="more-link">'. l(t('more'), 'term_popular') .'</div>';
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$block['subject'] = t('Popular categories');
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$block['content'] = $output;
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}
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return $block;
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}
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}
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?>
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