3a34d7e4ea
Only show local public notices in sitemap. Only do counts for them in the sitemap index, and only show them in the notice sitemap.
289 lines
7.9 KiB
PHP
289 lines
7.9 KiB
PHP
<?php
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/**
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* Data class for counting notice postings by date
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*
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* PHP version 5
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*
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* @category Data
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* @package StatusNet
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* @author Evan Prodromou <evan@status.net>
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* @license http://www.fsf.org/licensing/licenses/agpl.html AGPLv3
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* @link http://status.net/
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*
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* StatusNet - the distributed open-source microblogging tool
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* Copyright (C) 2010, StatusNet, Inc.
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Affero General Public License for more details.
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*
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* You should have received a copy of the GNU Affero General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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if (!defined('STATUSNET')) {
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exit(1);
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}
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require_once INSTALLDIR . '/classes/Memcached_DataObject.php';
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/**
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* Data class for counting notices by date
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*
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* We make a separate sitemap for each notice posted by date.
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* To save ourselves some (not inconsiderable) processing effort,
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* we cache this data in the sitemap_notice_count table. Each
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* row represents a day since the site has been started, with a count
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* of notices posted on that day. Since, after the end of the day,
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* this number doesn't change, it's a good candidate for persistent caching.
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*
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* @category Data
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* @package StatusNet
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* @author Evan Prodromou <evan@status.net>
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* @license http://www.fsf.org/licensing/licenses/agpl.html AGPLv3
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* @link http://status.net/
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*
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* @see DB_DataObject
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*/
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class Sitemap_notice_count extends Memcached_DataObject
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{
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public $__table = 'sitemap_notice_count'; // table name
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public $notice_date; // date primary_key not_null
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public $notice_count; // int(4)
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public $created;
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public $modified;
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/**
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* Get an instance by key
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*
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* This is a utility method to get a single instance with a given key value.
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*
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* @param string $k Key to use to lookup (usually 'notice_id' for this class)
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* @param mixed $v Value to lookup
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*
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* @return Sitemap_notice_count object found, or null for no hits
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*
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*/
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function staticGet($k, $v=null)
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{
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return Memcached_DataObject::staticGet('Sitemap_notice_count', $k, $v);
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}
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/**
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* return table definition for DB_DataObject
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*
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* DB_DataObject needs to know something about the table to manipulate
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* instances. This method provides all the DB_DataObject needs to know.
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*
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* @return array array of column definitions
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*/
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function table()
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{
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return array('notice_date' => DB_DATAOBJECT_DATE + DB_DATAOBJECT_NOTNULL,
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'notice_count' => DB_DATAOBJECT_INT,
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'created' => DB_DATAOBJECT_STR + DB_DATAOBJECT_DATE + DB_DATAOBJECT_TIME + DB_DATAOBJECT_NOTNULL,
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'modified' => DB_DATAOBJECT_STR + DB_DATAOBJECT_DATE + DB_DATAOBJECT_TIME + DB_DATAOBJECT_NOTNULL);
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}
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/**
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* return key definitions for DB_DataObject
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*
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* DB_DataObject needs to know about keys that the table has; this function
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* defines them.
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*
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* @return array key definitions
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*/
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function keys()
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{
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return array('notice_date' => 'K');
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}
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/**
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* return key definitions for Memcached_DataObject
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*
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* Our caching system uses the same key definitions, but uses a different
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* method to get them.
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*
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* @return array key definitions
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*/
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function keyTypes()
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{
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return $this->keys();
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}
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static function getAll()
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{
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$noticeCounts = self::cacheGet('sitemap:notice:counts');
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if ($noticeCounts === false) {
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$snc = new Sitemap_notice_count();
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$snc->orderBy('notice_date DESC');
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// Fetch the first one to check up-to-date-itude
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$n = $snc->find(true);
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$today = self::today();
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$noticeCounts = array();
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if (!$n) { // No counts saved yet
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$noticeCounts = self::initializeCounts();
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} else if ($snc->notice_date < $today) { // There are counts but not up to today
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$noticeCounts = self::fillInCounts($snc->notice_date);
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} else if ($snc->notice_date == $today) { // Refresh today's
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$noticeCounts[$today] = self::updateToday();
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}
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// starts with second-to-last date
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while ($snc->fetch()) {
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$noticeCounts[$snc->notice_date] = $snc->notice_count;
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}
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self::cacheSet('sitemap:notice:counts', $noticeCounts);
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}
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return $noticeCounts;
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}
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static function initializeCounts()
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{
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$firstDate = self::getFirstDate(); // awww
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$today = self::today();
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$counts = array();
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for ($d = $firstDate; $d <= $today; $d = self::incrementDay($d)) {
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$n = self::getCount($d);
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self::insertCount($d, $n);
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$counts[$d] = $n;
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}
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return $counts;
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}
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static function fillInCounts($lastDate)
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{
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$today = self::today();
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$counts = array();
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$n = self::getCount($lastDate);
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self::updateCount($lastDate, $n);
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$counts[$lastDate] = $n;
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for ($d = self::incrementDay($lastDate); $d <= $today; $d = self::incrementDay($d)) {
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$n = self::getCount($d);
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self::insertCount($d, $n);
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}
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return $counts;
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}
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static function updateToday()
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{
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$today = self::today();
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$n = self::getCount($today);
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self::updateCount($today, $n);
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return $n;
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}
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static function getCount($d)
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{
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$notice = new Notice();
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$notice->whereAdd('created BETWEEN "'.$d.' 00:00:00" AND "'.self::incrementDay($d).' 00:00:00"');
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$notice->whereAdd('is_local = ' . Notice::LOCAL_PUBLIC);
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$n = $notice->count();
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return $n;
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}
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static function insertCount($d, $n)
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{
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$snc = new Sitemap_notice_count();
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$snc->notice_date = DB_DataObject_Cast::date($d);
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$snc->notice_count = $n;
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$snc->created = common_sql_now();
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$snc->modified = $snc->created;
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if (!$snc->insert()) {
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common_log(LOG_WARNING, "Could not save user counts for '$d'");
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}
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}
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static function updateCount($d, $n)
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{
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$snc = Sitemap_notice_count::staticGet('notice_date', DB_DataObject_Cast::date($d));
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if (empty($snc)) {
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throw new Exception("No such registration date: $d");
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}
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$orig = clone($snc);
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$snc->notice_date = DB_DataObject_Cast::date($d);
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$snc->notice_count = $n;
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$snc->created = common_sql_now();
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$snc->modified = $snc->created;
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if (!$snc->update($orig)) {
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common_log(LOG_WARNING, "Could not save user counts for '$d'");
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}
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}
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static function incrementDay($d)
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{
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$dt = self::dateStrToInt($d);
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return self::dateIntToStr($dt + 24 * 60 * 60);
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}
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static function dateStrToInt($d)
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{
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return strtotime($d.' 00:00:00');
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}
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static function dateIntToStr($dt)
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{
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return date('Y-m-d', $dt);
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}
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static function getFirstDate()
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{
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$n = new Notice();
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$n->selectAdd();
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$n->selectAdd('date(min(created)) as first_date');
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if ($n->find(true)) {
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return $n->first_date;
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} else {
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// Is this right?
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return self::dateIntToStr(time());
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}
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}
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static function today()
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{
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return self::dateIntToStr(time());
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}
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}
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