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<?php
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// $Id: sphinxsearch.taxonomy.inc,v 1.1.2.4 2008/09/03 01:38:55 markuspetrux Exp $
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/**
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* @file
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* Common taxonomy related functions for the Sphinx search module.
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*/
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/**
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* Obtain list of enabled vocabularies.
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*
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* Each vocabulary will be indexed on a separate multi-valued field.
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*
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* @return array
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* list of enabled vocabularies.
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*/
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function sphinxsearch_get_enabled_vocabularies() {
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static $vocabularies;
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if (!isset($vocabularies)) {
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$vocabularies = array();
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if (module_exists('taxonomy')) {
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foreach(taxonomy_get_vocabularies() as $vocabulary) {
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if (variable_get('sphinxsearch_include_vocabulary_'. $vocabulary->vid, 0)) {
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$vocabularies[(int)$vocabulary->vid] = $vocabulary;
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}
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}
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}
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}
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return $vocabularies;
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}
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/**
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* Encode terms hash into a comma separated list.
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*
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* @param array $terms
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* Hash of terms.
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* @param string $separator
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* Terms separator. Defaults to ', '.
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* @return string
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* Comma separated list of terms.
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*/
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function sphinxsearch_taxonomy_encode_typed_terms($terms, $separator = ', ') {
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$typed_terms = array();
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foreach ($terms as $tid => $term) {
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// Commas and quotes in terms are special cases, so encode 'em.
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if (strpos($term->name, ',') !== FALSE || strpos($term->name, '"') !== FALSE) {
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$term->name = '"'. str_replace('"', '""', $term->name) .'"';
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}
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$typed_terms[] = $term->name;
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}
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return implode($separator, $typed_terms);
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}
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/**
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* Decode a comma separated list of strings into hash of terms.
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* @see taxonomy_node_save()
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*
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* @param int $vid
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* Vocabulary identifier related to terms.
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* @param string $typed_terms
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* Comma separated list of terms.
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* @return array
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* Hash of terms. Note that a string of not found typed terms is stored as tid -1.
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*/
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function sphinxsearch_taxonomy_decode_typed_terms($vid, $typed_terms) {
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$terms = array();
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$regexp = '%(?:^|,\ *)("(?>[^"]*)(?>""[^"]* )*"|(?: [^",]*))%x';
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preg_match_all($regexp, $typed_terms, $matches);
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$typed_terms = array_unique($matches[1]);
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foreach ($typed_terms as $typed_term) {
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$typed_term = trim(str_replace('""', '"', preg_replace('#^"(.*)"$#', '\1', $typed_term)));
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if (!empty($typed_term)) {
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$possibilities = taxonomy_get_term_by_name($typed_term);
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$term = NULL;
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foreach ($possibilities as $possibility) {
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if ($possibility->vid == $vid) {
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$term = $possibility;
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}
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}
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if ($term) {
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$terms[$term->tid] = $term;
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}
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else {
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// Store typed terms that we haven't found in a particular item with tid = -1,
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// so caller has the chance to notify the user about it.
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if (!isset($terms[-1])) {
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$terms[-1] = array();
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}
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$terms[-1][] = $typed_term;
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}
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}
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}
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if (isset($terms[-1])) {
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$terms[-1] = implode(', ', $terms[-1]);
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}
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return $terms;
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}
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/**
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* Get term data for the given tids.
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*
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* @param int $vid
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* Vocabulary identifier related to terms.
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* @param array $tids
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* List of tids.
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* @return array
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* Hash of terms. Note that a string of not found tids is stored as tid -1.
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*/
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function sphinxsearch_taxonomy_get_terms($vid, $tids) {
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$terms = array();
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if (!empty($tids)) {
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$query_args = array_merge(array($vid), $tids);
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$query_sql = 'SELECT t.* FROM {term_data} t WHERE t.vid = %d AND t.tid ';
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if (count($tids) == 1) {
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$query_sql .= '= %d';
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}
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else {
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$query_sql .= 'IN ('. db_placeholders($tids) .')';
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}
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$result = db_query(db_rewrite_sql($query_sql, 't', 'tid'), $query_args);
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while ($term = db_fetch_object($result)) {
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$terms[$term->tid] = $term;
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}
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$diff = array_diff($tids, array_keys($terms));
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if (!empty($diff)) {
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$terms[-1] = implode(', ', $diff);
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}
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}
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return $terms;
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}
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/**
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* Build tagadelic items for the given options.
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* Tagadelic block (weighted tags cloud).
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*
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* @param array $build_options
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* array(
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* 'type' string Grouping type: 'author', 'taxonomy', 'types'.
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* 'vid' int Vocabulary ID when grouping type is 'taxonomy'.
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* 'count' int Number of tags to render.
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* 'levels' int Amount of tag-sizes.
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* 'sortmode' string Sort order options.
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* 'request_options' array Requested search options (optional).
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* '_faceted_data' boolean TRUE when used from sphinxsearch_faceted_build_data().
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* )
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*
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* @return array
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* Hash of tagadelic items.
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*/
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function sphinxsearch_tagadelic_build_data($build_options) {
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// Check options.
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if (!isset($build_options['count']) || !is_numeric($build_options['count'])) {
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$build_options['count'] = 20;
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}
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if (!isset($build_options['levels']) || !is_numeric($build_options['levels'])) {
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$build_options['levels'] = 10;
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}
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if (!isset($build_options['sortmode'])) {
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$build_options['sortmode'] = 'title,asc';
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}
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if (!isset($build_options['request_options']) || !is_array($build_options['request_options'])) {
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$build_options['request_options'] = array();
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}
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// Build search options structure.
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$search_options = sphinxsearch_parse_request($build_options['request_options']);
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$search_filters = array();
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if ($build_options['type'] == 'author') {
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if (!empty($search_options['filters']['author'])) {
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$author = new stdClass();
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$author->uid = $search_options['filters']['author']['uid'];
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$author->name = $search_options['filters']['author']['name'];
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$search_filters[$author->uid] = $author;
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}
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$build_options['group_by_field'] = 'uid';
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}
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else if ($build_options['type'] == 'types') {
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if (!isset($search_options['filters']['types'])) {
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$search_options['filters']['types'] = array();
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}
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if (!empty($search_options['filters']['types'])) {
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foreach ($search_options['filters']['types'] as $type) {
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$node_type = new stdClass();
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$node_type->type = $type;
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$node_type->name = node_get_types('name', $type);
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$search_filters[$node_type->type] = $node_type;
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}
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}
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$build_options['group_by_field'] = 'nodetype';
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}
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else if ($build_options['type'] == 'taxonomy') {
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$vid = (int)$build_options['vid'];
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if (!isset($search_options['filters']['taxonomy'])) {
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$search_options['filters']['taxonomy'] = array($vid => array());
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}
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else if (!isset($search_options['filters']['taxonomy'][$vid])) {
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$search_options['filters']['taxonomy'][$vid] = array();
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}
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$search_filters = $search_options['filters']['taxonomy'][$vid];
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$build_options['group_by_field'] = 'terms'. $vid;
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}
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else {
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return FALSE;
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}
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// Results count should include number of items specified in filters.
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$count = (int)$build_options['count'] + count($search_filters);
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// Execute a GroupBy query based on current search options.
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$search_results = sphinxsearch_execute_query(array_merge($search_options, array(
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'results_per_page' => $count,
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'group_by' => $build_options['group_by_field'],
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)));
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if ($search_results['total_available'] <= 0 && empty($build_options['_faceted_data'])) {
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return FALSE;
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}
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// Remove filtered items from results.
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$generic_groups = array();
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foreach ($search_results['groups'] as $tid => $group_info) {
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if (!isset($search_filters[$tid])) {
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$generic_groups[$tid] = $group_info;
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}
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}
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if (count($generic_groups) <= 1 && empty($build_options['_faceted_data'])) {
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return FALSE;
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}
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unset($search_results);
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// Compute filtered items list in user supplied order.
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$filtered_items = array();
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foreach ($search_filters as $tid => $item) {
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if (!isset($generic_groups[$tid])) {
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$filtered_items[$tid] = $item;
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}
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}
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// Transform search results into tagadelic items.
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$generic_terms = array();
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if (!empty($generic_groups)) {
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if ($build_options['type'] == 'author') {
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$uids = array_keys($generic_groups);
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$sql = 'SELECT uid, name FROM {users} WHERE uid ';
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if (count($uids) == 1) {
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$sql .= '= %d';
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}
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else {
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$sql .= 'IN ('. db_placeholders($uids) .')';
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}
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$result = db_query($sql, $uids);
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while ($row = db_fetch_object($result)) {
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$generic_terms[$row->uid] = $row;
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}
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}
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else if ($build_options['type'] == 'types') {
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foreach (array_keys($generic_groups) as $type) {
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$node_type = new stdClass();
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$node_type->type = $type;
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$node_type->name = node_get_types('name', $type);
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$generic_terms[$node_type->type] = $node_type;
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}
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}
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else if ($build_options['type'] == 'taxonomy') {
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$generic_terms = sphinxsearch_taxonomy_get_terms($vid, array_keys($generic_groups));
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}
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}
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// Find minimum and maximum log-count. Algorithm based on tagadelic.module.
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$tags = array();
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$min = 1e9;
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$max = -1e9;
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foreach ($generic_groups as $tid => $group_info) {
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if (isset($generic_terms[$tid])) {
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$tag = $generic_terms[$tid];
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$tag->tagadelic_items = $group_info['count'];
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$tag->tagadelic_count = log($group_info['count']);
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$min = min($min, $tag->tagadelic_count);
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$max = max($max, $tag->tagadelic_count);
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$tags[$tid] = $tag;
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}
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}
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if (empty($tags) && empty($build_options['_faceted_data'])) {
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return FALSE;
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}
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unset($generic_groups, $generic_terms);
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// Note: we need to ensure the range is slightly too large to make sure even
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// the largest element is rounded down.
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$range = max(.01, $max - $min) * 1.0001;
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foreach ($tags as $tid => $tag) {
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$tags[$tid]->tagadelic_weight = 1 + floor((int)$build_options['levels'] * ($tag->tagadelic_count - $min) / $range);
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// Compute faceted search path/query string for each tag.
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if (!empty($build_options['linkto']) && $build_options['linkto'] == 'search') {
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$faceted_search_options = $search_options;
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if ($build_options['type'] == 'author') {
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$faceted_search_options['filters']['author'] = array('uid' => $tag->uid, 'name' => $tag->name);
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}
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else if ($build_options['type'] == 'types') {
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$faceted_search_options['filters']['types'][] = $tag->type;
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}
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else if ($build_options['type'] == 'taxonomy') {
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$vid = $build_options['vid'];
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if (!isset($faceted_search_options['filters']['taxonomy'][$vid][$tid])) {
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$faceted_search_options['filters']['taxonomy'][$vid][$tid] = $tag;
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}
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}
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$tags[$tid]->faceted_path = sphinxsearch_get_search_path();
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$tags[$tid]->faceted_query = sphinxsearch_get_query_string($faceted_search_options);
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}
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}
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// Sort tags.
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list($sort_by, $sort_order) = explode(',', $build_options['sortmode']);
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switch ($sort_by) {
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case 'title':
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usort($tags, create_function('$a,$b', 'return strnatcasecmp($a->name, $b->name);'));
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break;
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case 'weight':
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usort($tags, create_function('$a,$b', 'return $a->tagadelic_weight > $b->tagadelic_weight;'));
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break;
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case 'random':
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shuffle($tags);
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break;
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}
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if ($sort_order == 'desc') {
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$tags = array_reverse($tags, TRUE);
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}
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// Additional faceted search processing (internal use only).
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// @see sphinxsearch_faceted_block()
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if (!empty($build_options['_faceted_data'])) {
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// Return weighted tags, filtered items and search options.
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return array($tags, $filtered_items, $search_options);
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}
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return $tags;
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}
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/**
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* Menu callback; Tagadelic page (weighted tags cloud).
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*
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* @param string $vids
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*/
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function sphinxsearch_tagadelic_page($vids = NULL) {
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$vocabularies = sphinxsearch_get_enabled_vocabularies();
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| 347 |
if (!isset($vids)) {
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$vids = array_keys($vocabularies);
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}
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else {
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$vids = array_filter(array_map('intval', array_map('trim', explode(',', $vids))));
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$vids = array_intersect(array_keys($vocabularies), array_unique($vids));
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}
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$blocks = array();
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foreach ($vids as $vid) {
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$tags = sphinxsearch_tagadelic_build_data(array(
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'type' => 'taxonomy', 'vid' => $vid,
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'count' => (int)variable_get('sphinxsearch_page_tagadelic_tags', 100),
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| 359 |
'levels' => (int)variable_get('sphinxsearch_page_tagadelic_levels', 10),
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| 360 |
'sortmode' => variable_get('sphinxsearch_page_tagadelic_sortmode', 'title,asc'),
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| 361 |
'linkto' => variable_get('sphinxsearch_page_tagadelic_linkto', 'taxonomy'),
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));
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| 363 |
if (!empty($tags)) {
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| 364 |
$blocks[$vid] = array(
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| 365 |
'vocabulary' => $vocabularies[$vid],
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| 366 |
'content' => theme('sphinxsearch_tagadelic_block', $tags),
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);
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| 368 |
}
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| 369 |
}
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| 370 |
if (empty($blocks)) {
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| 371 |
drupal_not_found();
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return;
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| 373 |
}
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| 374 |
return theme('sphinxsearch_tagadelic_page', $blocks);
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| 375 |
}
|
| 376 |
|
| 377 |
/**
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| 378 |
* Build faceted items for the given options.
|
| 379 |
*
|
| 380 |
* @param array $build_options
|
| 381 |
* array(
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| 382 |
* 'count' int Number of tags to render per facet.
|
| 383 |
* 'levels' int Amount of tag-sizes.
|
| 384 |
* 'sortmode' string Sort order options.
|
| 385 |
* 'request_options' array Requested search options (optional).
|
| 386 |
* )
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| 387 |
*
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| 388 |
* @return array
|
| 389 |
* List of facets.
|
| 390 |
*/
|
| 391 |
function sphinxsearch_faceted_build_data($build_options) {
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| 392 |
// Check options.
|
| 393 |
if (!isset($build_options['count']) || !is_numeric($build_options['count'])) {
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| 394 |
$build_options['count'] = 20;
|
| 395 |
}
|
| 396 |
if (!isset($build_options['levels']) || !is_numeric($build_options['levels'])) {
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| 397 |
$build_options['levels'] = 10;
|
| 398 |
}
|
| 399 |
if (!isset($build_options['sortmode'])) {
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| 400 |
$build_options['sortmode'] = 'title,asc';
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| 401 |
}
|
| 402 |
if (!isset($build_options['request_options']) || !is_array($build_options['request_options'])) {
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| 403 |
$build_options['request_options'] = $_GET;
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| 404 |
}
|
| 405 |
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| 406 |
// Append faceted search options.
|
| 407 |
$build_options['linkto'] = 'search';
|
| 408 |
$build_options['_faceted_data'] = TRUE;
|
| 409 |
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| 410 |
$faceted_blocks = array();
|
| 411 |
|
| 412 |
// Build facets by taxonomy.
|
| 413 |
foreach (sphinxsearch_get_enabled_vocabularies() as $vid => $vocabulary) {
|
| 414 |
list($tags, $filtered_items, $search_options) = sphinxsearch_tagadelic_build_data(array_merge($build_options, array(
|
| 415 |
'type' => 'taxonomy',
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| 416 |
'vid' => $vid,
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)));
|
| 418 |
$faceted_blocks[] = array(
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| 419 |
'type' => 'taxonomy', 'vid' => $vid,
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| 420 |
'title' => $vocabulary->name,
|
| 421 |
'tags' => $tags,
|
| 422 |
'filtered_items' => $filtered_items,
|
| 423 |
'search_options' => $search_options,
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| 424 |
);
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| 425 |
}
|
| 426 |
|
| 427 |
// Build facets by node type.
|
| 428 |
list($tags, $filtered_items, $search_options) = sphinxsearch_tagadelic_build_data(array_merge($build_options, array(
|
| 429 |
'type' => 'types',
|
| 430 |
)));
|
| 431 |
$faceted_blocks[] = array(
|
| 432 |
'type' => 'types',
|
| 433 |
'title' => t('Content type'),
|
| 434 |
'tags' => $tags,
|
| 435 |
'filtered_items' => $filtered_items,
|
| 436 |
'search_options' => $search_options,
|
| 437 |
);
|
| 438 |
|
| 439 |
// Build facets by author.
|
| 440 |
list($tags, $filtered_items, $search_options) = sphinxsearch_tagadelic_build_data(array_merge($build_options, array(
|
| 441 |
'type' => 'author',
|
| 442 |
)));
|
| 443 |
$faceted_blocks[] = array(
|
| 444 |
'type' => 'author',
|
| 445 |
'title' => t('Author'),
|
| 446 |
'tags' => $tags,
|
| 447 |
'filtered_items' => $filtered_items,
|
| 448 |
'search_options' => $search_options,
|
| 449 |
);
|
| 450 |
|
| 451 |
$facets = array();
|
| 452 |
foreach ($faceted_blocks as $facet_data) {
|
| 453 |
if (empty($facet_data['tags']) && empty($facet_data['filtered_items'])) {
|
| 454 |
continue;
|
| 455 |
}
|
| 456 |
|
| 457 |
$facet = new stdClass();
|
| 458 |
$facet->type = $facet_data['type'];
|
| 459 |
$facet->title = $facet_data['title'];
|
| 460 |
$facet->tags = $facet_data['tags'];
|
| 461 |
|
| 462 |
// Compute search path/query string for facet filters.
|
| 463 |
if (!empty($facet_data['filtered_items'])) {
|
| 464 |
$reversed_terms = array_reverse($facet_data['filtered_items'], TRUE);
|
| 465 |
$remaining_terms = $facet_data['filtered_items'];
|
| 466 |
foreach ($reversed_terms as $tid => $term) {
|
| 467 |
$faceted_search_options = $facet_data['search_options'];
|
| 468 |
if ($facet_data['type'] == 'author') {
|
| 469 |
unset($faceted_search_options['filters']['author']);
|
| 470 |
}
|
| 471 |
else if ($facet_data['type'] == 'types') {
|
| 472 |
$faceted_search_options['filters']['types'] = array_keys($remaining_terms);
|
| 473 |
}
|
| 474 |
else if ($facet_data['type'] == 'taxonomy') {
|
| 475 |
$faceted_search_options['filters']['taxonomy'][$facet_data['vid']] = $remaining_terms;
|
| 476 |
}
|
| 477 |
$facet_data['filtered_items'][$tid]->faceted_path = sphinxsearch_get_search_path();
|
| 478 |
$facet_data['filtered_items'][$tid]->faceted_query = sphinxsearch_get_query_string($faceted_search_options);
|
| 479 |
unset($remaining_terms[$tid]);
|
| 480 |
}
|
| 481 |
|
| 482 |
$faceted_search_options = $facet_data['search_options'];
|
| 483 |
if ($facet_data['type'] == 'author') {
|
| 484 |
unset($faceted_search_options['filters']['author']);
|
| 485 |
}
|
| 486 |
else if ($facet_data['type'] == 'types') {
|
| 487 |
unset($faceted_search_options['filters']['types']);
|
| 488 |
}
|
| 489 |
else if ($facet_data['type'] == 'taxonomy') {
|
| 490 |
unset($faceted_search_options['filters']['taxonomy'][$facet_data['vid']]);
|
| 491 |
}
|
| 492 |
$facet->path = sphinxsearch_get_search_path();
|
| 493 |
$facet->query = sphinxsearch_get_query_string($faceted_search_options);
|
| 494 |
$facet->terms = $facet_data['filtered_items'];
|
| 495 |
}
|
| 496 |
|
| 497 |
$facets[] = $facet;
|
| 498 |
}
|
| 499 |
return $facets;
|
| 500 |
}
|
| 501 |
|
| 502 |
/**
|
| 503 |
* Render faceted search block for the given facets.
|
| 504 |
*
|
| 505 |
* @param array $facets
|
| 506 |
*
|
| 507 |
* @ingroup themeable
|
| 508 |
*/
|
| 509 |
function theme_sphinxsearch_faceted_block($facets) {
|
| 510 |
$output = '';
|
| 511 |
|
| 512 |
// Build superset section.
|
| 513 |
$superset = array();
|
| 514 |
foreach ($facets as $facet) {
|
| 515 |
if (!empty($facet->terms)) {
|
| 516 |
$links = array();
|
| 517 |
$last_term = array_pop($facet->terms);
|
| 518 |
foreach ($facet->terms as $tid => $term) {
|
| 519 |
$url = url($term->faceted_path, array('query' => $term->faceted_query));
|
| 520 |
$link = '<span><a href="'. $url .'">'. check_plain($term->name) .'</a></span>';
|
| 521 |
$links[] = $link;
|
| 522 |
}
|
| 523 |
$links[] = '<span class="faceted-superset-youarehere">'. check_plain($last_term->name) .'</span>';
|
| 524 |
if (!empty($links)) {
|
| 525 |
$url = url($facet->path, array('query' => $facet->query));
|
| 526 |
$link = '<span><a href="'. $url .'">'. t('All') .'</a></span>';
|
| 527 |
$superset[] = '<div><strong>'. check_plain($facet->title) .':</strong> '. implode(' › ', array_merge(array($link), $links)) .'</div>';
|
| 528 |
}
|
| 529 |
}
|
| 530 |
}
|
| 531 |
if (!empty($superset)) {
|
| 532 |
$output .= '<div class="faceted-superset"><h2>'. t('You are here') .':</h2><div class="faceted-superset-lists">'. theme('item_list', $superset) .'</div></div>';
|
| 533 |
}
|
| 534 |
|
| 535 |
// Build refine search by terms section.
|
| 536 |
foreach ($facets as $facet) {
|
| 537 |
if (!empty($facet->tags)) {
|
| 538 |
$facet_tags = theme('sphinxsearch_tagadelic_block', $facet->tags);
|
| 539 |
if (!empty($facet_tags)) {
|
| 540 |
$output .= '<div class="faceted-vocabulary"><h2>'. t('Refine search by: @vocabulary', array('@vocabulary' => $facet->title)) .'</h2>'. $facet_tags .'</div>' ."\n";
|
| 541 |
}
|
| 542 |
}
|
| 543 |
}
|
| 544 |
|
| 545 |
if (empty($output)) {
|
| 546 |
return '';
|
| 547 |
}
|
| 548 |
return '<div class="faceted-wrapper">'. $output .'</div>';
|
| 549 |
}
|
| 550 |
|
| 551 |
/**
|
| 552 |
* Render tagadelic block for the given tags.
|
| 553 |
*
|
| 554 |
* @param array $tags
|
| 555 |
*
|
| 556 |
* @ingroup themeable
|
| 557 |
*/
|
| 558 |
function theme_sphinxsearch_tagadelic_block($tags) {
|
| 559 |
$output = '';
|
| 560 |
|
| 561 |
foreach ($tags as $tag) {
|
| 562 |
// Note: we don't use l() because it may append class="active".
|
| 563 |
$attributes = array('class' => 'tagadelic-level'. $tag->tagadelic_weight, 'rel' => (!empty($tag->faceted_path) ? 'nofollow' : 'tag'));
|
| 564 |
if (!empty($tag->tagadelic_items)) {
|
| 565 |
$attributes['title'] = $tag->name .' ('. $tag->tagadelic_items .')';
|
| 566 |
}
|
| 567 |
$url = (!empty($tag->faceted_path) ? url($tag->faceted_path, array('query' => $tag->faceted_query)) : url(taxonomy_term_path($tag)));
|
| 568 |
$output .= '<a href="'. $url .'"'. drupal_attributes($attributes) .'>'. check_plain($tag->name) .'</a>' ."\n";
|
| 569 |
}
|
| 570 |
|
| 571 |
if (empty($output)) {
|
| 572 |
return '';
|
| 573 |
}
|
| 574 |
return '<div class="tagadelic-wrapper">'. $output .'</div>';
|
| 575 |
}
|
| 576 |
|
| 577 |
/**
|
| 578 |
* Render more link for tagadelic block.
|
| 579 |
*
|
| 580 |
* @param int $vid
|
| 581 |
*
|
| 582 |
* @ingroup themeable
|
| 583 |
*/
|
| 584 |
function theme_sphinxsearch_tagadelic_more($vid) {
|
| 585 |
return '<div class="more-link">'. l(t('more'), 'tagadelic/'. $vid) .'</div>';
|
| 586 |
}
|
| 587 |
|
| 588 |
/**
|
| 589 |
* Render tagadelic page for the given blocks.
|
| 590 |
*
|
| 591 |
* @param array $blocks
|
| 592 |
* Hash of blocks per vocabulary. Elements:
|
| 593 |
* - vocabulary: object
|
| 594 |
* - content: Tagadelic block content in HTML format.
|
| 595 |
*
|
| 596 |
* @ingroup themeable
|
| 597 |
*/
|
| 598 |
function theme_sphinxsearch_tagadelic_page($blocks) {
|
| 599 |
$output = '';
|
| 600 |
$blocks_count = count($blocks);
|
| 601 |
foreach ($blocks as $vid => $block) {
|
| 602 |
$output .= '<div class="tagadelic-page-block">';
|
| 603 |
if ($blocks_count == 1) {
|
| 604 |
drupal_set_title(t('Tags in @vocabulary', array('@vocabulary' => $block['vocabulary']->name)));
|
| 605 |
}
|
| 606 |
else {
|
| 607 |
$output .= '<h2>'. check_plain($block['vocabulary']->name) .'</h2>';
|
| 608 |
}
|
| 609 |
$output .= $block['content'] .'</div>';
|
| 610 |
}
|
| 611 |
return $output;
|
| 612 |
}
|
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