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Update sorting for user tagged timelines (indexing was bad before and remains bad -- we need some DB changes to make this one nice)

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This commit is contained in:
Brion Vibber 2010-12-17 13:45:40 -08:00
parent 4cd3a0756b
commit 4adf551f9f
1 changed files with 10 additions and 7 deletions
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17
classes/Profile.php
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@ -215,26 +215,29 @@ class Profile extends Memcached_DataObject
function _streamTaggedDirect($tag, $offset, $limit, $since_id, $max_id)
{
// XXX It would be nice to do this without a join
// (necessary to do it efficiently on accounts with long history)
$notice = new Notice();
$query =
"select id from notice join notice_tag on id=notice_id where tag='".
$notice->escape($tag) .
"' and profile_id=" . $notice->escape($this->id);
"' and profile_id=" . intval($this->id);
if ($since_id != 0) {
$query .= " and id > $since_id";
$since = Notice::whereSinceId($since_id, 'id', 'notice.created');
if ($since) {
$query .= " and ($since)";
}
if ($max_id != 0) {
$query .= " and id <= $max_id";
$max = Notice::whereMaxId($max_id, 'id', 'notice.created');
if ($max) {
$query .= " and ($max)";
}
$query .= ' order by id DESC';
$query .= ' order by notice.created DESC, id DESC';
if (!is_null($offset)) {
$query .= " LIMIT $limit OFFSET $offset";
$query .= " LIMIT " . intval($limit) . " OFFSET " . intval($offset);
}
$notice->query($query);