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Update notice sorting for profile streams; extract more common code to Notice::addSinceId() and Notice::addMaxId()

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This commit is contained in:
Brion Vibber 2010-12-17 13:20:38 -08:00
parent 9e8bbff8ac
commit 4cd3a0756b
2 changed files with 50 additions and 55 deletions
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49
classes/Notice.php
View File

@ -668,15 +668,8 @@ class Notice extends Memcached_DataObject
$notice->whereAdd('is_local !='. Notice::GATEWAY);
}
$since = Notice::whereSinceId($since_id);
if ($since) {
$notice->whereAdd($since);
}
$max = Notice::whereMaxId($max_id);
if ($max) {
$notice->whereAdd($max);
}
Notice::addWhereSinceId($notice, $since_id);
Notice::addWhereMaxId($notice, $max_id);
$ids = array();
@ -2027,6 +2020,25 @@ class Notice extends Memcached_DataObject
return false;
}
/**
* Build an SQL 'where' fragment for timestamp-based sorting from a since_id
* parameter, matching notices posted after the given one (exclusive), and
* if necessary add it to the data object's query.
*
* @param DB_DataObject $obj
* @param int $id
* @param string $idField
* @param string $createdField
* @return mixed string or false if no match
*/
public static function addWhereSinceId(DB_DataObject $obj, $id, $idField='id', $createdField='created')
{
$since = self::whereSinceId($id);
if ($since) {
$obj->whereAdd($since);
}
}
/**
* Build an SQL 'where' fragment for timestamp-based sorting from a max_id
* parameter, matching notices posted before the given one (inclusive).
@ -2046,4 +2058,23 @@ class Notice extends Memcached_DataObject
}
return false;
}
/**
* Build an SQL 'where' fragment for timestamp-based sorting from a max_id
* parameter, matching notices posted before the given one (inclusive), and
* if necessary add it to the data object's query.
*
* @param DB_DataObject $obj
* @param int $id
* @param string $idField
* @param string $createdField
* @return mixed string or false if no match
*/
public static function addWhereMaxId(DB_DataObject $obj, $id, $idField='id', $createdField='created')
{
$max = self::whereMaxId($id);
if ($max) {
$obj->whereAdd($max);
}
}
}

42
classes/Profile.php
View File

@ -252,57 +252,21 @@ class Profile extends Memcached_DataObject
{
$notice = new Notice();
// Temporary hack until notice_profile_id_idx is updated
// to (profile_id, id) instead of (profile_id, created, id).
// It's been falling back to PRIMARY instead, which is really
// very inefficient for a profile that hasn't posted in a few
// months. Even though forcing the index will cause a filesort,
// it's usually going to be better.
if (common_config('db', 'type') == 'mysql') {
$index = '';
$query =
"select id from notice force index (notice_profile_id_idx) ".
"where profile_id=" . $notice->escape($this->id);
if ($since_id != 0) {
$query .= " and id > $since_id";
}
if ($max_id != 0) {
$query .= " and id <= $max_id";
}
$query .= ' order by id DESC';
if (!is_null($offset)) {
$query .= " LIMIT $limit OFFSET $offset";
}
$notice->query($query);
} else {
$index = '';
$notice->profile_id = $this->id;
$notice->selectAdd();
$notice->selectAdd('id');
if ($since_id != 0) {
$notice->whereAdd('id > ' . $since_id);
}
Notice::addWhereSinceId($notice, $since_id);
Notice::addWhereMaxId($notice, $max_id);
if ($max_id != 0) {
$notice->whereAdd('id <= ' . $max_id);
}
$notice->orderBy('id DESC');
$notice->orderBy('created DESC, id DESC');
if (!is_null($offset)) {
$notice->limit($offset, $limit);
}
$notice->find();
}
$ids = array();