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-rw-r--r--mod/search/start.php133
1 files changed, 76 insertions, 57 deletions
diff --git a/mod/search/start.php b/mod/search/start.php
index 3467420b7..8a112a3a3 100644
--- a/mod/search/start.php
+++ b/mod/search/start.php
@@ -1,45 +1,41 @@
<?php
/**
- * Elgg core search.
+ * Elgg search plugin
*
- * @package Elgg
- * @subpackage Core
- * @author Curverider Ltd <info@elgg.com>, The MITRE Corporation <http://www.mitre.org>
- * @link http://elgg.org/
*/
+elgg_register_event_handler('init','system','search_init');
+
/**
- * Initialise search helper functions.
- *
+ * Initialize search plugin
*/
function search_init() {
global $CONFIG;
require_once 'search_hooks.php';
// page handler for search actions and results
- register_page_handler('search','search_page_handler');
+ elgg_register_page_handler('search', 'search_page_handler');
// register some default search hooks
- register_plugin_hook('search', 'object', 'search_objects_hook');
- register_plugin_hook('search', 'user', 'search_users_hook');
-
- // @todo pull this out into groups
- register_plugin_hook('search', 'group', 'search_groups_hook');
+ elgg_register_plugin_hook_handler('search', 'object', 'search_objects_hook');
+ elgg_register_plugin_hook_handler('search', 'user', 'search_users_hook');
+ elgg_register_plugin_hook_handler('search', 'group', 'search_groups_hook');
// tags and comments are a bit different.
// register a search types and a hooks for them.
- register_plugin_hook('search_types', 'get_types', 'search_custom_types_tags_hook');
- register_plugin_hook('search', 'tags', 'search_tags_hook');
+ elgg_register_plugin_hook_handler('search_types', 'get_types', 'search_custom_types_tags_hook');
+ elgg_register_plugin_hook_handler('search', 'tags', 'search_tags_hook');
- register_plugin_hook('search_types', 'get_types', 'search_custom_types_comments_hook');
- register_plugin_hook('search', 'comments', 'search_comments_hook');
+ elgg_register_plugin_hook_handler('search_types', 'get_types', 'search_custom_types_comments_hook');
+ elgg_register_plugin_hook_handler('search', 'comments', 'search_comments_hook');
// get server min and max allowed chars for ft searching
$CONFIG->search_info = array();
// can't use get_data() here because some servers don't have these globals set,
// which throws a db exception.
- $r = mysql_query('SELECT @@ft_min_word_len as min, @@ft_max_word_len as max');
+ $dblink = get_db_link('read');
+ $r = mysql_query('SELECT @@ft_min_word_len as min, @@ft_max_word_len as max', $dblink);
if ($r && ($word_lens = mysql_fetch_assoc($r))) {
$CONFIG->search_info['min_chars'] = $word_lens['min'];
$CONFIG->search_info['max_chars'] = $word_lens['max'];
@@ -50,19 +46,19 @@ function search_init() {
}
// add in CSS for search elements
- elgg_extend_view('css', 'search/css');
+ elgg_extend_view('css/elgg', 'search/css');
// extend view for elgg topbar search box
- elgg_extend_view('header/extend', 'search/search_box');
+ elgg_extend_view('page/elements/header', 'search/header');
}
/**
* Page handler for search
*
- * @param array $page Page elements from pain page handler
+ * @param array $page Page elements from core page handler
+ * @return bool
*/
function search_page_handler($page) {
- global $CONFIG;
// if there is no q set, we're being called from a legacy installation
// it expects a search by tags.
@@ -73,26 +69,34 @@ function search_page_handler($page) {
//set_input('search_type', 'tags');
}
- include_once('index.php');
+ $base_dir = elgg_get_plugins_path() . 'search/pages/search';
+
+ include_once("$base_dir/index.php");
+ return true;
}
/**
* Return a string with highlighted matched queries and relevant context
- * Determins context based upon occurance and distance of words with each other.
+ * Determines context based upon occurance and distance of words with each other.
*
* @param string $haystack
* @param string $query
* @param int $min_match_context = 30
* @param int $max_length = 300
+ * @param bool $tag_match Search is for tags. Don't ignore words.
* @return string
*/
-function search_get_highlighted_relevant_substrings($haystack, $query, $min_match_context = 30, $max_length = 300) {
- global $CONFIG;
+function search_get_highlighted_relevant_substrings($haystack, $query, $min_match_context = 30, $max_length = 300, $tag_match = false) {
+
$haystack = strip_tags($haystack);
$haystack_length = elgg_strlen($haystack);
$haystack_lc = elgg_strtolower($haystack);
- $words = search_remove_ignored_words($query, 'array');
+ if (!$tag_match) {
+ $words = search_remove_ignored_words($query, 'array');
+ } else {
+ $words = array();
+ }
// if haystack < $max_length return the entire haystack w/formatting immediately
if ($haystack_length <= $max_length) {
@@ -108,6 +112,7 @@ function search_get_highlighted_relevant_substrings($haystack, $query, $min_matc
$word = elgg_strtolower($word);
$count = elgg_substr_count($haystack_lc, $word);
$word_len = elgg_strlen($word);
+ $haystack_len = elgg_strlen($haystack_lc);
// find the start positions for the words
if ($count > 1) {
@@ -118,6 +123,10 @@ function search_get_highlighted_relevant_substrings($haystack, $query, $min_matc
$stop = $pos + $word_len + $min_match_context;
$lengths[] = $stop - $start;
$offset += $pos + $word_len;
+
+ if ($offset >= $haystack_len) {
+ break;
+ }
}
} else {
$pos = elgg_strpos($haystack_lc, $word);
@@ -135,7 +144,7 @@ function search_get_highlighted_relevant_substrings($haystack, $query, $min_matc
$total_length = array_sum($offsets);
$add_length = 0;
- if ($total_length < $max_length) {
+ if ($total_length < $max_length && $offsets) {
$add_length = floor((($max_length - $total_length) / count($offsets)) / 2);
$starts = array();
@@ -225,7 +234,7 @@ function search_consolidate_substrings($offsets, $lengths) {
$end_pos = $offset + $length;
// find the next entry that doesn't overlap
- while(array_key_exists($i+1, $offsets) && $end_pos > $offsets[$i+1]) {
+ while (array_key_exists($i+1, $offsets) && $end_pos > $offsets[$i+1]) {
$i++;
if (!array_key_exists($i, $offsets)) {
break;
@@ -254,23 +263,30 @@ function search_highlight_words($words, $string) {
$replace_html = array(
'strong' => rand(10000, 99999),
'class' => rand(10000, 99999),
- 'searchMatch' => rand(10000, 99999),
- 'searchMatchColor' => rand(10000, 99999)
+ 'search-highlight' => rand(10000, 99999),
+ 'search-highlight-color' => rand(10000, 99999)
);
foreach ($words as $word) {
+ // remove any boolean mode operators
+ $word = preg_replace("/([\-\+~])([\w]+)/i", '$2', $word);
+
+ // escape the delimiter and any other regexp special chars
+ $word = preg_quote($word, '/');
+
$search = "/($word)/i";
+ // @todo
// must replace with placeholders in case one of the search terms is
// in the html string.
// later, will replace the placeholders with the actual html.
// Yeah this is hacky. I'm tired.
$strong = $replace_html['strong'];
$class = $replace_html['class'];
- $searchMatch = $replace_html['searchMatch'];
- $searchMatchColor = $replace_html['searchMatchColor'];
+ $highlight = $replace_html['search-highlight'];
+ $color = $replace_html['search-highlight-color'];
- $replace = "<$strong $class=\"$searchMatch $searchMatchColor{$i}\">$1</$strong>";
+ $replace = "<$strong $class=\"$highlight $color{$i}\">$1</$strong>";
$string = preg_replace($search, $replace, $string);
$i++;
}
@@ -295,7 +311,9 @@ function search_remove_ignored_words($query, $format = 'array') {
global $CONFIG;
// don't worry about "s or boolean operators
- $query = str_replace(array('"', '-', '+', '~'), '', stripslashes(strip_tags($query)));
+ //$query = str_replace(array('"', '-', '+', '~'), '', stripslashes(strip_tags($query)));
+ $query = stripslashes(strip_tags($query));
+
$words = explode(' ', $query);
$min_chars = $CONFIG->search_info['min_chars'];
@@ -323,12 +341,12 @@ function search_remove_ignored_words($query, $format = 'array') {
*
* @param array $results
* @param array $params
- * @param string $view_type = listing, entity or listing
+ * @param string $view_type = list, entity or layout
* @return string
*/
function search_get_search_view($params, $view_type) {
switch ($view_type) {
- case 'listing':
+ case 'list':
case 'entity':
case 'layout':
break;
@@ -339,7 +357,7 @@ function search_get_search_view($params, $view_type) {
$view_order = array();
- // check if there's a special search listing view for this type:subtype
+ // check if there's a special search list view for this type:subtype
if (isset($params['type']) && $params['type'] && isset($params['subtype']) && $params['subtype']) {
$view_order[] = "search/{$params['type']}/{$params['subtype']}/$view_type";
}
@@ -354,7 +372,7 @@ function search_get_search_view($params, $view_type) {
$view_order[] = "search/{$params['search_type']}/$view_type";
}
- // finally default to a search listing default
+ // finally default to a search list default
$view_order[] = "search/$view_type";
foreach ($view_order as $view) {
@@ -384,12 +402,8 @@ function search_get_where_sql($table, $fields, $params, $use_fulltext = TRUE) {
$fields[$i] = "$table.$field";
}
}
-
- // if we're not using full text, rewrite the query for bool mode.
- // exploiting a feature(ish) of bool mode where +-word is the same as -word
- if (!$use_fulltext) {
- $query = '+' . str_replace(' ', ' +', $query);
- }
+
+ $where = '';
// if query is shorter than the min for fts words
// it's likely a single acronym or similar
@@ -403,22 +417,30 @@ function search_get_where_sql($table, $fields, $params, $use_fulltext = TRUE) {
$likes_str = implode(' OR ', $likes);
$where = "($likes_str)";
} else {
- // if using advanced or paired "s, switch into boolean mode
- if (!$use_fulltext
- || (isset($params['advanced_search']) && $params['advanced_search'])
- || elgg_substr_count($query, '"') >= 2 ) {
+ // if we're not using full text, rewrite the query for bool mode.
+ // exploiting a feature(ish) of bool mode where +-word is the same as -word
+ if (!$use_fulltext) {
+ $query = '+' . str_replace(' ', ' +', $query);
+ }
+
+ // if using advanced, boolean operators, or paired "s, switch into boolean mode
+ $booleans_used = preg_match("/([\-\+~])([\w]+)/i", $query);
+ $advanced_search = (isset($params['advanced_search']) && $params['advanced_search']);
+ $quotes_used = (elgg_substr_count($query, '"') >= 2);
+
+ if (!$use_fulltext || $booleans_used || $advanced_search || $quotes_used) {
$options = 'IN BOOLEAN MODE';
} else {
// natural language mode is default and this keyword isn't supported in < 5.1
//$options = 'IN NATURAL LANGUAGE MODE';
$options = '';
}
-
+
// if short query, use query expansion.
// @todo doesn't seem to be working well.
- if (elgg_strlen($query) < 5) {
- //$options .= ' WITH QUERY EXPANSION';
- }
+// if (elgg_strlen($query) < 5) {
+// $options .= ' WITH QUERY EXPANSION';
+// }
$query = sanitise_string($query);
$fields_str = implode(',', $fields);
@@ -446,7 +468,7 @@ function search_get_order_by_sql($entities_table, $type_table, $sort, $order) {
default:
case 'relevance':
// default is relevance descending.
- // acending relevancy is silly and complicated.
+ // ascending relevancy is silly and complicated.
$on = '';
break;
case 'created':
@@ -478,6 +500,3 @@ function search_get_order_by_sql($entities_table, $type_table, $sort, $order) {
return $order_by;
}
-/** Register init system event **/
-
-register_elgg_event_handler('init','system','search_init');
generated by cgit v1.2.3 (git 2.39.1) at 2025-11-13 10:49:19 +0000