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Add time-based cutoffs for public tag cloud, favorited lists to speed up those queries.

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Defaulting to only looking at last 90 days of activity, can be adjusted up or down.

$config['tag']['cutoff'] = 86400 * 90;
$config['popular']['cutoff'] = 86400 * 90;

Per-user and per-group tag clouds do not use the cutoff (and it doesn't help with indexing on them).
This commit is contained in:
Brion Vibber 2010-02-04 11:06:01 -08:00
parent 7a7e2162dd
commit 5a1cbdc6f1
6 changed files with 17 additions and 4 deletions
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3
actions/favorited.php
View File

@ -186,10 +186,13 @@ class FavoritedAction extends Action
function showContent()
{
$weightexpr = common_sql_weight('fave.modified', common_config('popular', 'dropoff'));
$cutoff = sprintf("fave.modified > '%s'",
common_sql_date(time() - common_config('popular', 'cutoff')));
$qry = 'SELECT notice.*, '.
$weightexpr . ' as weight ' .
'FROM notice JOIN fave ON notice.id = fave.notice_id ' .
"WHERE $cutoff " .
'GROUP BY id,profile_id,uri,content,rendered,url,created,notice.modified,reply_to,is_local,source,notice.conversation ' .
'ORDER BY weight DESC';

3
actions/publictagcloud.php
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@ -106,7 +106,10 @@ class PublictagcloudAction extends Action
#Add the aggregated columns...
$tags->selectAdd('max(notice_id) as last_notice_id');
$calc = common_sql_weight('created', common_config('tag', 'dropoff'));
$cutoff = sprintf("notice_tag.created > '%s'",
common_sql_date(time() - common_config('tag', 'cutoff')));
$tags->selectAdd($calc . ' as weight');
$tags->addWhere($cutoff);
$tags->groupBy('tag');
$tags->orderBy('weight DESC');

6
lib/default.php
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@ -144,9 +144,11 @@ $default =
'invite' =>
array('enabled' => true),
'tag' =>
array('dropoff' => 864000.0),
array('dropoff' => 864000.0, # controls weighting based on age
'cutoff' => 86400 * 90), # only look at notices posted in last 90 days
'popular' =>
array('dropoff' => 864000.0),
array('dropoff' => 864000.0, # controls weighting based on age
'cutoff' => 86400 * 90), # only look at notices favorited in last 90 days
'daemon' =>
array('piddir' => '/var/run',
'user' => false,

1
lib/grouptagcloudsection.php
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@ -59,6 +59,7 @@ class GroupTagCloudSection extends TagCloudSection
function getTags()
{
$weightexpr = common_sql_weight('notice_tag.created', common_config('tag', 'dropoff'));
// @fixme should we use the cutoff too? Doesn't help with indexing per-group.
$names = $this->group->getAliases();

1
lib/personaltagcloudsection.php
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@ -59,6 +59,7 @@ class PersonalTagCloudSection extends TagCloudSection
function getTags()
{
$weightexpr = common_sql_weight('notice_tag.created', common_config('tag', 'dropoff'));
// @fixme should we use the cutoff too? Doesn't help with indexing per-user.
$qry = 'SELECT notice_tag.tag, '.
$weightexpr . ' as weight ' .

7
lib/popularnoticesection.php
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@ -59,12 +59,15 @@ class PopularNoticeSection extends NoticeSection
}
}
$weightexpr = common_sql_weight('fave.modified', common_config('popular', 'dropoff'));
$cutoff = sprintf("fave.modified > '%s'",
common_sql_date(time() - common_config('popular', 'cutoff')));
$qry = "SELECT notice.*, $weightexpr as weight ";
if(isset($tag)) {
$qry .= 'FROM notice_tag, notice JOIN fave ON notice.id = fave.notice_id ' .
"WHERE notice.id = notice_tag.notice_id and '$tag' = notice_tag.tag";
"WHERE $cutoff and notice.id = notice_tag.notice_id and '$tag' = notice_tag.tag";
} else {
$qry .= 'FROM notice JOIN fave ON notice.id = fave.notice_id';
$qry .= 'FROM notice JOIN fave ON notice.id = fave.notice_id ' .
"WHERE $cutoff";
}
$qry .= ' GROUP BY notice.id,notice.profile_id,notice.content,notice.uri,' .
'notice.rendered,notice.url,notice.created,notice.modified,' .