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cache notice counts in utility table

This commit is contained in:
Evan Prodromou 2010-05-31 07:50:10 -07:00
parent 271d7dd850
commit d78dfd627e
1 changed files with 162 additions and 0 deletions
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162
plugins/Sitemap/Sitemap_notice_count.php
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@ -122,4 +122,166 @@ class Sitemap_notice_count extends Memcached_DataObject
{
return $this->keys();
}
static function getAll()
{
$noticeCounts = self::cacheGet('sitemap:notice:counts');
if ($noticeCounts === false) {
$snc = new Sitemap_notice_count();
$snc->orderBy('notice_date DESC');
// Fetch the first one to check up-to-date-itude
$n = $snc->find(true);
$today = self::today();
$noticeCounts = array();
if (!$n) { // No counts saved yet
$noticeCounts = self::initializeCounts();
} else if ($snc->notice_date < $today) { // There are counts but not up to today
$noticeCounts = self::fillInCounts($snc->notice_date);
} else if ($snc->notice_date == $today) { // Refresh today's
$noticeCounts[$today] = self::updateToday();
}
// starts with second-to-last date
while ($snc->fetch()) {
$noticeCounts[$snc->notice_date] = $snc->notice_count;
}
self::cacheSet('sitemap:notice:counts', $noticeCounts);
}
return $noticeCounts;
}
static function initializeCounts()
{
$firstDate = self::getFirstDate(); // awww
$today = self::today();
$counts = array();
for ($d = $firstDate; $d <= $today; $d = self::incrementDay($d)) {
$n = self::getCount($d);
self::insertCount($d, $n);
$counts[$d] = $n;
}
return $counts;
}
static function fillInCounts($lastDate)
{
$today = self::today();
$counts = array();
$n = self::getCount($lastDate);
self::updateCount($lastDate, $n);
$counts[$lastDate] = $n;
for ($d = self::incrementDay($lastDate); $d <= $today; $d = self::incrementDay($d)) {
$n = self::getCount($d);
self::insertCount($d, $n);
}
return $counts;
}
static function updateToday()
{
$today = self::today();
$n = self::getCount($today);
self::updateCount($today, $n);
return $n;
}
static function getCount($d)
{
$notice = new Notice();
$notice->whereAdd('created BETWEEN "'.$d.' 00:00:00" AND "'.self::incrementDay($d).' 00:00:00"');
$n = $notice->count();
return $n;
}
static function insertCount($d, $n)
{
$snc = new Sitemap_notice_count();
$snc->notice_date = DB_DataObject_Cast::date($d);
$snc->notice_count = $n;
$snc->created = common_sql_now();
$snc->modified = $snc->created;
if (!$snc->insert()) {
common_log(LOG_WARNING, "Could not save user counts for '$d'");
}
}
static function updateCount($d, $n)
{
$snc = Sitemap_notice_count::staticGet('notice_date', DB_DataObject_Cast::date($d));
if (empty($snc)) {
throw new Exception("No such registration date: $d");
}
$orig = clone($snc);
$snc->notice_date = DB_DataObject_Cast::date($d);
$snc->notice_count = $n;
$snc->created = common_sql_now();
$snc->modified = $snc->created;
if (!$snc->update($orig)) {
common_log(LOG_WARNING, "Could not save user counts for '$d'");
}
}
static function incrementDay($d)
{
$dt = self::dateStrToInt($d);
return self::dateIntToStr($dt + 24 * 60 * 60);
}
static function dateStrToInt($d)
{
return strtotime($d.' 00:00:00');
}
static function dateIntToStr($dt)
{
return date('Y-m-d', $dt);
}
static function getFirstDate()
{
$n = new Notice();
$n->selectAdd();
$n->selectAdd('date(min(created)) as first_date');
if ($n->find(true)) {
return $n->first_date;
} else {
// Is this right?
return self::dateIntToStr(time());
}
}
static function today()
{
return self::dateIntToStr(time());
}
}