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-rw-r--r--BSF/include/functions_search.inc.php560
1 files changed, 0 insertions, 560 deletions
diff --git a/BSF/include/functions_search.inc.php b/BSF/include/functions_search.inc.php
deleted file mode 100644
index 7069bd5c9..000000000
--- a/BSF/include/functions_search.inc.php
+++ /dev/null
@@ -1,560 +0,0 @@
-<?php
-// +-----------------------------------------------------------------------+
-// | Piwigo - a PHP based picture gallery |
-// +-----------------------------------------------------------------------+
-// | Copyright(C) 2008 Piwigo Team http://piwigo.org |
-// | Copyright(C) 2003-2008 PhpWebGallery Team http://phpwebgallery.net |
-// | Copyright(C) 2002-2003 Pierrick LE GALL http://le-gall.net/pierrick |
-// +-----------------------------------------------------------------------+
-// | This program is free software; you can redistribute it and/or modify |
-// | it under the terms of the GNU General Public License as published by |
-// | the Free Software Foundation |
-// | |
-// | This program is distributed in the hope that it will be useful, but |
-// | WITHOUT ANY WARRANTY; without even the implied warranty of |
-// | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
-// | General Public License for more details. |
-// | |
-// | You should have received a copy of the GNU General Public License |
-// | along with this program; if not, write to the Free Software |
-// | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, |
-// | USA. |
-// +-----------------------------------------------------------------------+
-
-
-/**
- * returns search rules stored into a serialized array in "search"
- * table. Each search rules set is numericaly identified.
- *
- * @param int search_id
- * @return array
- */
-function get_search_array($search_id)
-{
- if (!is_numeric($search_id))
- {
- die('Search id must be an integer');
- }
-
- $query = '
-SELECT rules
- FROM '.SEARCH_TABLE.'
- WHERE id = '.$search_id.'
-;';
- list($serialized_rules) = mysql_fetch_row(pwg_query($query));
-
- return unserialize($serialized_rules);
-}
-
-/**
- * returns the SQL clause from a search identifier
- *
- * Search rules are stored in search table as a serialized array. This array
- * need to be transformed into an SQL clause to be used in queries.
- *
- * @param array search
- * @return string
- */
-function get_sql_search_clause($search)
-{
- // SQL where clauses are stored in $clauses array during query
- // construction
- $clauses = array();
-
- foreach (array('file','name','comment','author') as $textfield)
- {
- if (isset($search['fields'][$textfield]))
- {
- $local_clauses = array();
- foreach ($search['fields'][$textfield]['words'] as $word)
- {
- array_push($local_clauses, $textfield." LIKE '%".$word."%'");
- }
-
- // adds brackets around where clauses
- $local_clauses = prepend_append_array_items($local_clauses, '(', ')');
-
- array_push(
- $clauses,
- implode(
- ' '.$search['fields'][$textfield]['mode'].' ',
- $local_clauses
- )
- );
- }
- }
-
- if (isset($search['fields']['allwords']))
- {
- $fields = array('file', 'name', 'comment', 'author');
- // in the OR mode, request bust be :
- // ((field1 LIKE '%word1%' OR field2 LIKE '%word1%')
- // OR (field1 LIKE '%word2%' OR field2 LIKE '%word2%'))
- //
- // in the AND mode :
- // ((field1 LIKE '%word1%' OR field2 LIKE '%word1%')
- // AND (field1 LIKE '%word2%' OR field2 LIKE '%word2%'))
- $word_clauses = array();
- foreach ($search['fields']['allwords']['words'] as $word)
- {
- $field_clauses = array();
- foreach ($fields as $field)
- {
- array_push($field_clauses, $field." LIKE '%".$word."%'");
- }
- // adds brackets around where clauses
- array_push(
- $word_clauses,
- implode(
- "\n OR ",
- $field_clauses
- )
- );
- }
-
- array_walk(
- $word_clauses,
- create_function('&$s','$s="(".$s.")";')
- );
-
- array_push(
- $clauses,
- "\n ".
- implode(
- "\n ".
- $search['fields']['allwords']['mode'].
- "\n ",
- $word_clauses
- )
- );
- }
-
- foreach (array('date_available', 'date_creation') as $datefield)
- {
- if (isset($search['fields'][$datefield]))
- {
- array_push(
- $clauses,
- $datefield." = '".$search['fields'][$datefield]['date']."'"
- );
- }
-
- foreach (array('after','before') as $suffix)
- {
- $key = $datefield.'-'.$suffix;
-
- if (isset($search['fields'][$key]))
- {
- array_push(
- $clauses,
-
- $datefield.
- ($suffix == 'after' ? ' >' : ' <').
- ($search['fields'][$key]['inc'] ? '=' : '').
- " '".$search['fields'][$key]['date']."'"
-
- );
- }
- }
- }
-
- if (isset($search['fields']['cat']))
- {
- if ($search['fields']['cat']['sub_inc'])
- {
- // searching all the categories id of sub-categories
- $cat_ids = get_subcat_ids($search['fields']['cat']['words']);
- }
- else
- {
- $cat_ids = $search['fields']['cat']['words'];
- }
-
- $local_clause = 'category_id IN ('.implode(',', $cat_ids).')';
- array_push($clauses, $local_clause);
- }
-
- // adds brackets around where clauses
- $clauses = prepend_append_array_items($clauses, '(', ')');
-
- $where_separator =
- implode(
- "\n ".$search['mode'].' ',
- $clauses
- );
-
- $search_clause = $where_separator;
-
- return $search_clause;
-}
-
-/**
- * returns the list of items corresponding to the advanced search array
- *
- * @param array search
- * @return array
- */
-function get_regular_search_results($search)
-{
- $items = array();
-
- $search_clause = get_sql_search_clause($search);
-
- if (!empty($search_clause))
- {
- $query = '
-SELECT DISTINCT(id)
- FROM '.IMAGES_TABLE.'
- INNER JOIN '.IMAGE_CATEGORY_TABLE.' AS ic ON id = ic.image_id
- WHERE '.$search_clause.'
-;';
- $items = array_from_query($query, 'id');
- }
-
- if (isset($search['fields']['tags']))
- {
- $tag_items = get_image_ids_for_tags(
- $search['fields']['tags']['words'],
- $search['fields']['tags']['mode']
- );
-
- switch ($search['mode'])
- {
- case 'AND':
- {
- if (empty($search_clause))
- {
- $items = $tag_items;
- }
- else
- {
- $items = array_intersect($items, $tag_items);
- }
- break;
- }
- case 'OR':
- {
- $items = array_unique(
- array_merge(
- $items,
- $tag_items
- )
- );
- break;
- }
- }
- }
-
- return $items;
-}
-
-/**
- * returns the LIKE sql clause corresponding to the quick search query $q
- * and the field $field. example q='john bill', field='file' will return
- * file LIKE '%john%' OR file LIKE '%bill%'. Special characters for MySql full
- * text search (+,<,>,~) are omitted. The query can contain a phrase:
- * 'Pierre "New York"' will return LIKE '%Pierre%' OR LIKE '%New York%'.
- * @param string q
- * @param string field
- * @return string
- */
-function get_qsearch_like_clause($q, $field)
-{
- $q = stripslashes($q);
- $tokens = array();
- $token_modifiers = array();
- $crt_token = "";
- $crt_token_modifier = "";
- $state = 0;
-
- for ($i=0; $i<strlen($q); $i++)
- {
- $ch = $q[$i];
- switch ($state)
- {
- case 0:
- if ($ch=='"')
- {
- if (strlen($crt_token))
- {
- $tokens[] = $crt_token;
- $token_modifiers[] = $crt_token_modifier;
- $crt_token = "";
- $crt_token_modifier = "";
- }
- $state=1;
- }
- elseif ( $ch=='*' )
- { // wild card
- $crt_token .= '%';
- }
- elseif ( strcspn($ch, '+-><~')==0 )
- { //special full text modifier
- if (strlen($crt_token))
- {
- $tokens[] = $crt_token;
- $token_modifiers[] = $crt_token_modifier;
- $crt_token = "";
- $crt_token_modifier = "";
- }
- $crt_token_modifier .= $ch;
- }
- elseif (preg_match('/[\s,.;!\?]+/', $ch))
- { // white space
- if (strlen($crt_token))
- {
- $tokens[] = $crt_token;
- $token_modifiers[] = $crt_token_modifier;
- $crt_token = "";
- $crt_token_modifier = "";
- }
- }
- else
- {
- $crt_token .= $ch;
- }
- break;
- case 1: // qualified with quotes
- switch ($ch)
- {
- case '"':
- $tokens[] = $crt_token;
- $token_modifiers[] = $crt_token_modifier;
- $crt_token = "";
- $crt_token_modifier = "";
- $state=0;
- break;
- default:
- $crt_token .= $ch;
- }
- break;
- }
- }
- if (strlen($crt_token))
- {
- $tokens[] = $crt_token;
- $token_modifiers[] = $crt_token_modifier;
- }
-
- $clauses = array();
- for ($i=0; $i<count($tokens); $i++)
- {
- $tokens[$i] = trim($tokens[$i], '%');
- if (strstr($token_modifiers[$i], '-')!==false)
- continue;
- if ( strlen($tokens[$i])==0)
- continue;
- $clauses[] = $field.' LIKE "%'.addslashes($tokens[$i]).'%"';
- }
-
- return count($clauses) ? '('.implode(' OR ', $clauses).')' : null;
-}
-
-
-/**
- * returns the search results corresponding to a quick/query search.
- * A quick/query search returns many items (search is not strict), but results
- * are sorted by relevance unless $page['super_order_by'] is set. Returns:
- * array (
- * 'items' => array(85,68,79...)
- * 'as_is' => 1 (indicates the caller that items are ordered and permissions checked
- * 'qs' => array(
- * 'matching_tags' => array of matching tags
- * 'matching_cats' => array of matching categories
- * 'matching_cats_no_images' =>array(99) - matching categories without images
- * ))
- *
- * @param string q
- * @param string images_where optional aditional restriction on images table
- * @return array
- */
-function get_quick_search_results($q, $images_where='')
-{
- global $page;
- $search_results =
- array(
- 'items' => array(),
- 'as_is' => 1,
- 'qs' => array('q'=>stripslashes($q)),
- );
- $q = trim($q);
- if (empty($q))
- {
- return $search_results;
- }
- $q_like_field = '@@__db_field__@@'; //something never in a search
- $q_like_clause = get_qsearch_like_clause($q, $q_like_field );
-
-
- // Step 1 - first we find matches in #images table ===========================
- $where_clauses='MATCH(i.name, i.comment) AGAINST( "'.$q.'" IN BOOLEAN MODE)';
- if (!empty($q_like_clause))
- {
- $where_clauses .= '
- OR '. str_replace($q_like_field, 'file', $q_like_clause);
- $where_clauses = '('.$where_clauses.')';
- }
- $where_clauses = array($where_clauses);
- if (!empty($images_where))
- {
- $where_clauses[]='('.$images_where.')';
- }
- $where_clauses[] .= get_sql_condition_FandF
- (
- array( 'visible_images' => 'i.id' ), null, true
- );
- $query = '
-SELECT i.id,
- MATCH(i.name, i.comment) AGAINST( "'.$q.'" IN BOOLEAN MODE) AS weight
- FROM '.IMAGES_TABLE.' i
- WHERE '.implode("\n AND ", $where_clauses);
-
- $by_weights=array();
- $result = pwg_query($query);
- while ($row = mysql_fetch_array($result))
- { // weight is important when sorting images by relevance
- if ($row['weight'])
- {
- $by_weights[(int)$row['id']] = 2*$row['weight'];
- }
- else
- {//full text does not match but file name match
- $by_weights[(int)$row['id']] = 2;
- }
- }
-
-
- // Step 2 - search tags corresponding to the query $q ========================
- if (!empty($q_like_clause))
- { // search name and url name (without accents)
- $query = '
-SELECT id, name, url_name
- FROM '.TAGS_TABLE.'
- WHERE ('.str_replace($q_like_field, 'CONVERT(name, CHAR)', $q_like_clause).'
- OR '.str_replace($q_like_field, 'url_name', $q_like_clause).')';
- $tags = hash_from_query($query, 'id');
- if ( !empty($tags) )
- { // we got some tags; get the images
- $search_results['qs']['matching_tags']=$tags;
- $query = '
-SELECT image_id, COUNT(tag_id) AS weight
- FROM '.IMAGE_TAG_TABLE.'
- WHERE tag_id IN ('.implode(',',array_keys($tags)).')
- GROUP BY image_id';
- $result = pwg_query($query);
- while ($row = mysql_fetch_assoc($result))
- { // weight is important when sorting images by relevance
- $image_id=(int)$row['image_id'];
- @$by_weights[$image_id] += $row['weight'];
- }
- }
- }
-
-
- // Step 3 - search categories corresponding to the query $q ==================
- global $user;
- $query = '
-SELECT id, name, permalink, nb_images
- FROM '.CATEGORIES_TABLE.'
- INNER JOIN '.USER_CACHE_CATEGORIES_TABLE.' ON id=cat_id
- WHERE user_id='.$user['id'].'
- AND MATCH(name, comment) AGAINST( "'.$q.'" IN BOOLEAN MODE)'.
- get_sql_condition_FandF (
- array( 'visible_categories' => 'cat_id' ), "\n AND"
- );
- $result = pwg_query($query);
- while ($row = mysql_fetch_assoc($result))
- { // weight is important when sorting images by relevance
- if ($row['nb_images']==0)
- {
- $search_results['qs']['matching_cats_no_images'][] = $row;
- }
- else
- {
- $search_results['qs']['matching_cats'][$row['id']] = $row;
- }
- }
-
- if ( empty($by_weights) and empty($search_results['qs']['matching_cats']) )
- {
- return $search_results;
- }
-
- // Step 4 - now we have $by_weights ( array image id => weight ) that need
- // permission checks and/or matching categories to get images from
- $where_clauses = array();
- if ( !empty($by_weights) )
- {
- $where_clauses[]='i.id IN ('
- . implode(',', array_keys($by_weights)) . ')';
- }
- if ( !empty($search_results['qs']['matching_cats']) )
- {
- $where_clauses[]='category_id IN ('.
- implode(',',array_keys($search_results['qs']['matching_cats'])).')';
- }
- $where_clauses = array( '('.implode("\n OR ",$where_clauses).')' );
- if (!empty($images_where))
- {
- $where_clauses[]='('.$images_where.')';
- }
- $where_clauses[] = get_sql_condition_FandF(
- array
- (
- 'forbidden_categories' => 'category_id',
- 'visible_categories' => 'category_id',
- 'visible_images' => 'i.id'
- ),
- null,true
- );
-
- global $conf;
- $query = '
-SELECT DISTINCT(id)
- FROM '.IMAGES_TABLE.' i
- INNER JOIN '.IMAGE_CATEGORY_TABLE.' AS ic ON id = ic.image_id
- WHERE '.implode("\n AND ", $where_clauses)."\n".
- $conf['order_by'];
-
- $allowed_images = array_from_query( $query, 'id');
-
- if ( isset($page['super_order_by']) or empty($by_weights) )
- {
- $search_results['items'] = $allowed_images;
- return $search_results;
- }
-
- $allowed_images = array_flip( $allowed_images );
- $divisor = 5.0 * count($allowed_images);
- foreach ($allowed_images as $id=>$rank )
- {
- $weight = isset($by_weights[$id]) ? $by_weights[$id] : 1;
- $weight -= $rank/$divisor;
- $allowed_images[$id] = $weight;
- }
- arsort($allowed_images, SORT_NUMERIC);
- $search_results['items'] = array_keys($allowed_images);
- return $search_results;
-}
-
-/**
- * returns an array of 'items' corresponding to the search id
- *
- * @param int search id
- * @param string images_where optional aditional restriction on images table
- * @return array
- */
-function get_search_results($search_id, $images_where='')
-{
- $search = get_search_array($search_id);
- if ( !isset($search['q']) )
- {
- $result['items'] = get_regular_search_results($search);
- return $result;
- }
- else
- {
- return get_quick_search_results($search['q'], $images_where);
- }
-}
-?> \ No newline at end of file
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-07 21:41:42 +0000