diff options
Diffstat (limited to 'include/functions_search.inc.php')
| -rw-r--r-- | include/functions_search.inc.php | 136 |
1 files changed, 78 insertions, 58 deletions
diff --git a/include/functions_search.inc.php b/include/functions_search.inc.php index 24b676e1f..1f7469021 100644 --- a/include/functions_search.inc.php +++ b/include/functions_search.inc.php @@ -2,9 +2,8 @@ // +-----------------------------------------------------------------------+ // | PhpWebGallery - a PHP based picture gallery | // | Copyright (C) 2002-2003 Pierrick LE GALL - pierrick@phpwebgallery.net | -// | Copyright (C) 2003-2006 PhpWebGallery Team - http://phpwebgallery.net | +// | Copyright (C) 2003-2007 PhpWebGallery Team - http://phpwebgallery.net | // +-----------------------------------------------------------------------+ -// | branch : BSF (Best So Far) // | file : $Id$ // | last update : $Date$ // | last modifier : $Author$ @@ -301,40 +300,18 @@ function get_qsearch_like_clause($q, $field) */ function get_quick_search_results($q) { - global $user, $page, $filter; + global $page; $search_results = array(); - - // first search tag names corresponding to the query $q. we could also search - // tags later during the big join, but for the sake of the performance and - // because tags have only a simple name we do it separately - $q_like_clause = get_qsearch_like_clause($q, 'CONVERT(name, CHAR)' ); - $by_tag_weights=array(); - if (!empty($q_like_clause)) + $q = trim($q); + if (empty($q)) { - $query = ' -SELECT id - FROM '.TAGS_TABLE.' - WHERE '.$q_like_clause; - $tag_ids = array_from_query( $query, 'id'); - if (!empty($tag_ids)) - { // we got some tags - $query = ' -SELECT image_id, COUNT(tag_id) AS q - FROM '.IMAGE_TAG_TABLE.' - WHERE tag_id IN ('.implode(',',$tag_ids).') - GROUP BY image_id'; - $result = pwg_query($query); - while ($row = mysql_fetch_assoc($result)) - { // weight is important when sorting images by relevance - $by_tag_weights[(int)$row['image_id']] = $row['q']; - } - } + $search_results['items'] = array(); + return $search_results; } - // prepare the big join on images, comments and categories $query = ' SELECT - i.id, i.file, CAST( CONCAT_WS(" ", + i.id, CAST( CONCAT_WS(" ", IFNULL(i.name,""), IFNULL(i.comment,""), IFNULL(GROUP_CONCAT(DISTINCT co.content),""), @@ -356,7 +333,7 @@ FROM ( ( 'forbidden_categories' => 'category_id', 'visible_categories' => 'category_id', - 'visible_images' => 'ic.image_id' + 'visible_images' => 'i.id' ), 'WHERE' ).' @@ -365,35 +342,75 @@ GROUP BY i.id'; $query = 'SELECT id, MATCH(ft) AGAINST( "'.$q.'" IN BOOLEAN MODE) AS q FROM ('.$query.') AS Y WHERE MATCH(ft) AGAINST( "'.$q.'" IN BOOLEAN MODE)'; - //also inlcude the file name (but avoid full text which is slower because - //the filename in pwg doesn't have spaces so full text is meaningless anyway) - $q_like_clause = get_qsearch_like_clause($q, 'file' ); - if (! empty($q_like_clause) ) - { - $query .= ' OR '.$q_like_clause; - } - $by_weights=array(); $result = pwg_query($query); while ($row = mysql_fetch_array($result)) - { - $by_weights[(int)$row['id']] = $row['q'] ? $row['q'] : 0; + { // weight is important when sorting images by relevance + if ($row['q']) + { + $by_weights[(int)$row['id']] = 2*$row['q']; + } } - // finally merge the results (tags and big join) sorted by "relevance" - foreach ( $by_weights as $image=>$w ) + $permissions_checked = true; + // now search the file name separately (not done in full text because slower + // and the filename in pwg doesn't have spaces so full text is meaningless ) + $q_like_clause = get_qsearch_like_clause($q, 'file' ); + if (!empty($q_like_clause)) { - $by_tag_weights[$image] = 2*$w+ (isset($by_tag_weights[$image])?$by_tag_weights[$image]:0); + $query = ' +SELECT id + FROM '.IMAGES_TABLE.' + WHERE '.$q_like_clause. + get_sql_condition_FandF + ( + array + ( + 'visible_images' => 'id' + ), + 'AND' + ); + $result = pwg_query($query); + while ($row = mysql_fetch_assoc($result)) + { // weight is important when sorting images by relevance + $id=(int)$row['id']; + @$by_weights[$id] += 2; + $permissions_checked = false; + } } - //at this point, found images might contain images not allowed for the user - if ( empty($by_tag_weights) or isset($page['super_order_by']) ) + // now search tag names corresponding to the query $q. we could have searched + // tags earlier during the big join, but for the sake of the performance and + // because tags have only a simple name we do it separately + $q_like_clause = get_qsearch_like_clause($q, 'CONVERT(name, CHAR)' ); + if (!empty($q_like_clause)) { - // no aditionnal query here for permissions (will be done by section_init - // while sorting items as the user requested it) - $search_results['items'] = array_keys($by_tag_weights); + $query = ' +SELECT id + FROM '.TAGS_TABLE.' + WHERE '.$q_like_clause; + $tag_ids = array_from_query( $query, 'id'); + if (!empty($tag_ids)) + { // we got some tags + $query = ' +SELECT image_id, COUNT(tag_id) AS q + FROM '.IMAGE_TAG_TABLE.' + WHERE tag_id IN ('.implode(',',$tag_ids).') + 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['q']; + $permissions_checked = false; + } + } } - else + + //at this point, found images might contain images not allowed for the user + if ( !$permissions_checked + and !empty($by_weights) + and !isset($page['super_order_by']) ) { // before returning the result "as is", make sure the user has the // permissions for every item @@ -401,25 +418,28 @@ WHERE MATCH(ft) AGAINST( "'.$q.'" IN BOOLEAN MODE)'; SELECT DISTINCT(id) FROM '.IMAGES_TABLE.' INNER JOIN '.IMAGE_CATEGORY_TABLE.' AS ic ON id = ic.image_id - WHERE id IN ('.implode(',', array_keys($by_tag_weights) ).') + WHERE id IN ('.implode(',', array_keys($by_weights) ).') '.get_sql_condition_FandF ( array ( 'forbidden_categories' => 'category_id', 'visible_categories' => 'category_id', - 'visible_images' => 'ic.image_id' + 'visible_images' => 'id' ), 'AND' ); $allowed_image_ids = array_from_query( $query, 'id'); - $by_tag_weights = array_intersect_key($by_tag_weights, array_flip($allowed_image_ids)); - arsort($by_tag_weights, SORT_NUMERIC); - $search_results = array( - 'items'=>array_keys($by_tag_weights), - 'as_is'=>1 - ); + $by_weights = array_intersect_key($by_weights, array_flip($allowed_image_ids)); + $permissions_checked = true; + } + arsort($by_weights, SORT_NUMERIC); + if ( $permissions_checked ) + { + $search_results['as_is']=1; } + + $search_results['items'] = array_keys($by_weights); return $search_results; } |