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caching for related tags

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This commit is contained in:
Shish 2012-05-16 06:33:04 +01:00
parent 4cbd00c039
commit 708b117b2a
1 changed files with 43 additions and 37 deletions
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80
ext/tag_list/main.php
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@ -394,46 +394,52 @@ class TagList extends Extension {
global $database;
global $config;
$wild_tags = Tag::explode($search);
// $search_tags = array();
$related_tags = $database->cache->get("related_tags:$search");
$tag_id_array = array();
$tags_ok = true;
foreach($wild_tags as $tag) {
$tag = str_replace("*", "%", $tag);
$tag = str_replace("?", "_", $tag);
$tag_ids = $database->get_col("SELECT id FROM tags WHERE tag LIKE :tag", array("tag"=>$tag));
// $search_tags = array_merge($search_tags,
// $database->get_col("SELECT tag FROM tags WHERE tag LIKE :tag", array("tag"=>$tag)));
$tag_id_array = array_merge($tag_id_array, $tag_ids);
$tags_ok = count($tag_ids) > 0;
if(!$tags_ok) break;
}
$tag_id_list = join(', ', $tag_id_array);
if(empty($related_tags)) {
$wild_tags = Tag::explode($search);
// $search_tags = array();
if($tags_ok) {
$query = "
SELECT t2.tag AS tag, COUNT(it2.image_id) AS calc_count
FROM
image_tags AS it1,
image_tags AS it2,
tags AS t1,
tags AS t2
WHERE
t1.id IN($tag_id_list)
AND it1.image_id=it2.image_id
AND it1.tag_id = t1.id
AND it2.tag_id = t2.id
GROUP BY t2.tag
ORDER BY calc_count
DESC LIMIT :limit
";
$args = array("limit"=>$config->get_int('tag_list_length'));
$related_tags = $database->get_all($query, $args);
if(count($related_tags) > 0) {
$this->theme->display_refine_block($page, $related_tags, $wild_tags);
$tag_id_array = array();
$tags_ok = true;
foreach($wild_tags as $tag) {
$tag = str_replace("*", "%", $tag);
$tag = str_replace("?", "_", $tag);
$tag_ids = $database->get_col("SELECT id FROM tags WHERE tag LIKE :tag", array("tag"=>$tag));
// $search_tags = array_merge($search_tags,
// $database->get_col("SELECT tag FROM tags WHERE tag LIKE :tag", array("tag"=>$tag)));
$tag_id_array = array_merge($tag_id_array, $tag_ids);
$tags_ok = count($tag_ids) > 0;
if(!$tags_ok) break;
}
$tag_id_list = join(', ', $tag_id_array);
if($tags_ok) {
$query = "
SELECT t2.tag AS tag, COUNT(it2.image_id) AS calc_count
FROM
image_tags AS it1,
image_tags AS it2,
tags AS t1,
tags AS t2
WHERE
t1.id IN($tag_id_list)
AND it1.image_id=it2.image_id
AND it1.tag_id = t1.id
AND it2.tag_id = t2.id
GROUP BY t2.tag
ORDER BY calc_count
DESC LIMIT :limit
";
$args = array("limit"=>$config->get_int('tag_list_length'));
$related_tags = $database->get_all($query, $args);
$database->cache->set("related_tags:$search", $related_tags, 60*60);
}
}
if(count($related_tags) > 0) {
$this->theme->display_refine_block($page, $related_tags, $wild_tags);
}
}
// }}}