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<?php
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// $Id: taxonomy_dhtml.module,v 1.68 2008/12/11 15:44:07 darthclue Exp $
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/**
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* Implementation of hook_theme()
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*/
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function taxonomy_dhtml_theme() {
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return array(
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'taxonomy_dhtml_admin' => array(
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'arguments' => array('form' => array()),
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),
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);
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}
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/**
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* Implementation of hook_block()
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*/
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function taxonomy_dhtml_block($op = "list", $delta = 0) {
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if($op == "list") {
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$vocabularies = taxonomy_dhtml_get_vocabularies(TRUE);
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foreach ($vocabularies as $vocabulary) {
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$blocks[$vocabulary->vid]["info"] = 'Taxonomy DHTML: '. $vocabulary->name;
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}
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return $blocks;
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}
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elseif ($op == 'view') {
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if (user_access("access content")) {
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$vocabularies = taxonomy_dhtml_get_vocabularies(TRUE);
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$block["subject"]= t($vocabularies[$delta]->name);
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$block["content"]= menu_tree_output(taxonomy_dhtml_vocab_vert($vocabularies[$delta]->vid));
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return $block;
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}
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}
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}
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/**
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* TODO: Review comments from the original code ...
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* TODO: recipe.module and node_aggregator did use $type to filter results to their own node type. no longer supported (but should be)
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*/
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function taxonomy_dhtml_vocab_vert($vocabulary_id, $op = NULL) {
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$tree = taxonomy_get_tree($vocabulary_id);
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$taxonomy_menu = array();
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foreach ($tree as $term) {
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if ($term->parents[0]==0) {
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$taxonomy_menu[$term->name] = taxonomy_dhtml_process_term($term,taxonomy_dhtml_get_depth($term->vid));
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}
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}
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return $taxonomy_menu;
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}
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/**
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* Retrieve term data recursively
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*
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* @param term
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* The term to process. Expected structure is a single term from the array returned by taxonomy_get_tree.
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*
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* @param depth
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* The depth at which we are processing. We stop recursion if this is zero.
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*/
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function taxonomy_dhtml_process_term($term, $depth) {
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switch ($depth) {
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case 0:
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$url = "taxonomy/term/$term->tid";
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break;
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case 10:
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$url = "taxonomy/term/$term->tid/all";
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break;
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default:
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$url = "taxonomy/term/$term->tid/$depth";
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}
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$count = taxonomy_dhtml_term_count_nodes($term, $depth);
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$out = '';
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if ($count) {
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$out .= " ($count)";
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}
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$taxonomy_menu = array('link' => array('href' => $url, 'title' => $term->name . $out, 'expanded' => 1));
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if ($depth>0) {
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if ($tree = taxonomy_get_children($term->tid,$term->vid)) {
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$taxonomy_menu['below'] = array();
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foreach ($tree as $child) {
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$taxonomy_menu['below'][$child->name] = taxonomy_dhtml_process_term($child, $depth-1);
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}
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}
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}
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return $taxonomy_menu;
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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 taxonomy_dhtml_menu() {
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global $user;
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$items['admin/settings/taxonomy_dhtml'] = array(
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'title' => 'Taxonomy DHTML',
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'description' => t('Manage settings for taxonomy DHTML.'),
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'page callback' => 'drupal_get_form',
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'page arguments' => array('taxonomy_dhtml_admin'),
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'access arguments' => array('administer taxonomy'),
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'file' => 'taxonomy_dhtml.admin.inc',
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);
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return $items;
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}
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/**
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* Implementation of hook_help().
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*/
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function taxonomy_dhtml_help($path, $arg) {
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switch ($path) {
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case 'admin/modules#description':
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return '<p>'. t("A user interface for taxonomy featuring a collapsible list.") .'</p>';
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case 'admin/help#taxonomy_dhtml':
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case 'admin/settings/taxonomy_dhtml':
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$output = '<p>';
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$output .= "This module provides a DHTML representation of this site's taxonomy. ". l("Blocks", "admin/build/block"). " are also provided for each vocabulary.";
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return $output;
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}
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}
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/**
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* Return the number of items (noi) to display for the provided vocabulary id.
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*
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* @param vid
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* The vocabulary id to get noi data for.
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*/
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function taxonomy_dhtml_get_noi($vid) {
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$noi_return = 25;
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$result = db_query("SELECT v.vid, v.noi FROM {taxonomy_dhtml} v WHERE v.vid = '%s'", $vid);
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while ($noi_row = db_fetch_object($result)) {
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$noi_return = $noi_row->noi;
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}
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return $noi_return;
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}
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/**
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* Rewrite of taxonomy_get_vocabularies to allow us to pull in additional information from the taxonomy_dhtml table.
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*
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* @param exposed
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* If TRUE, we only return vocabularies that are set for exposure with a number of items to display greater than 0.
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*/
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function taxonomy_dhtml_get_vocabularies($exposed = FALSE) {
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if ($exposed) {
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$result = db_query(db_rewrite_sql('SELECT v.*, t.noi, t.depth, t.expblock FROM {vocabulary} v LEFT JOIN {taxonomy_dhtml} t ON v.vid = t.vid WHERE t.expblock=1 AND t.noi>0 ORDER BY v.weight, v.name', 'v', 'vid'));
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}
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else {
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$result = db_query(db_rewrite_sql('SELECT v.*, t.noi, t.depth, t.expblock FROM {vocabulary} v LEFT JOIN {taxonomy_dhtml} t ON v.vid = t.vid ORDER BY v.weight, v.name', 'v', 'vid'));
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}
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$vocabularies = array();
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$node_types = array();
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while ($voc = db_fetch_object($result)) {
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$vocabularies[$voc->vid] = $voc;
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}
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return $vocabularies;
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}
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/**
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* Retrieve term count recursively
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* Rewrite of taxonomy_term_count_nodes to allow us to eliminate children from the count.
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*
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* @param term
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* The term to process. Expected structure is a single term from the array returned by taxonomy_get_tree.
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*
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* @param depth
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* The depth at which we are processing. We stop recursion if this is zero.
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*/
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function taxonomy_dhtml_term_count_nodes($term, $depth) {
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$count = 0;
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$result = db_query(db_rewrite_sql('SELECT t.tid, COUNT(n.nid) AS c FROM {term_node} t INNER JOIN {node} n ON t.vid = n.vid WHERE n.status = 1 AND t.tid = %d GROUP BY t.tid'), $term->tid);
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while ($terms = db_fetch_object($result)) {
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$count = $terms->c;
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}
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if ($depth>0) {
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$tree = taxonomy_get_children($term->tid,$term->vid);
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foreach ($tree as $child) {
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$count += taxonomy_dhtml_term_count_nodes($child, $depth-1);
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}
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}
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return $count;
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}
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/**
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* Retrieve the depth for a specific vocab.
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*
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* @param vid
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* The vocabulary id to return the depth for.
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*/
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function taxonomy_dhtml_get_depth($vid) {
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$result = db_query('SELECT t.depth FROM {taxonomy_dhtml} t WHERE t.vid = %d', $vid);
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$voc = db_fetch_object($result);
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return $voc->depth;
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}
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