<?php
/**
- * Efficient paging for SQL queries.
- *
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* @file
* @ingroup Pager
*/
+use Wikimedia\Timestamp\TimestampException;
/**
- * IndexPager with a formatted navigation bar
+ * Efficient paging for SQL queries.
+ * IndexPager with a formatted navigation bar.
* @ingroup Pager
*/
abstract class ReverseChronologicalPager extends IndexPager {
public $mDefaultDirection = IndexPager::DIR_DESCENDING;
public $mYear;
public $mMonth;
+ public $mDay;
- function getNavigationBar() {
+ public function getNavigationBar() {
if ( !$this->isNavigationBarShown() ) {
return '';
}
return $this->mNavigationBar;
}
- function getDateCond( $year, $month ) {
- $year = intval( $year );
- $month = intval( $month );
+ /**
+ * Set and return the mOffset timestamp such that we can get all revisions with
+ * a timestamp up to the specified parameters.
+ *
+ * @param int $year Year up to which we want revisions
+ * @param int $month Month up to which we want revisions
+ * @param int $day [optional] Day up to which we want revisions. Default is end of month.
+ * @return string|null Timestamp or null if year and month are false/invalid
+ */
+ public function getDateCond( $year, $month, $day = -1 ) {
+ $year = (int)$year;
+ $month = (int)$month;
+ $day = (int)$day;
+
+ // Basic validity checks for year and month
+ // If year and month are invalid, don't update the mOffset
+ if ( $year <= 0 && ( $month <= 0 || $month >= 13 ) ) {
+ return null;
+ }
- // Basic validity checks
- $this->mYear = $year > 0 ? $year : false;
- $this->mMonth = ( $month > 0 && $month < 13 ) ? $month : false;
+ // Treat the given time in the wiki timezone and get a UTC timestamp for the database lookup
+ $timestamp = self::getOffsetDate( $year, $month, $day );
+ $timestamp->setTimezone( $this->getConfig()->get( 'Localtimezone' ) );
- // Given an optional year and month, we need to generate a timestamp
- // to use as "WHERE rev_timestamp <= result"
- // Examples: year = 2006 equals < 20070101 (+000000)
- // year=2005, month=1 equals < 20050201
- // year=2005, month=12 equals < 20060101
- if ( !$this->mYear && !$this->mMonth ) {
- return;
+ try {
+ $this->mYear = (int)$timestamp->format( 'Y' );
+ $this->mMonth = (int)$timestamp->format( 'm' );
+ $this->mDay = (int)$timestamp->format( 'd' );
+ $this->mOffset = $this->mDb->timestamp( $timestamp->getTimestamp() );
+ } catch ( TimestampException $e ) {
+ // Invalid user provided timestamp (T149257)
+ return null;
}
- if ( $this->mYear ) {
- $year = $this->mYear;
- } else {
+ return $this->mOffset;
+ }
+
+ /**
+ * Core logic of determining the mOffset timestamp such that we can get all items with
+ * a timestamp up to the specified parameters. Given parameters for a day up to which to get
+ * items, this function finds the timestamp of the day just after the end of the range for use
+ * in an database strict inequality filter.
+ *
+ * This is separate from getDateCond so we can use this logic in other places, such as in
+ * RangeChronologicalPager, where this function is used to convert year/month/day filter options
+ * into a timestamp.
+ *
+ * @param int $year Year up to which we want revisions
+ * @param int $month Month up to which we want revisions
+ * @param int $day [optional] Day up to which we want revisions. Default is end of month.
+ * @return MWTimestamp Timestamp or null if year and month are false/invalid
+ */
+ public static function getOffsetDate( $year, $month, $day = -1 ) {
+ // Given an optional year, month, and day, we need to generate a timestamp
+ // to use as "WHERE rev_timestamp <= result"
+ // Examples: year = 2006 equals < 20070101 (+000000)
+ // year=2005, month=1 equals < 20050201
+ // year=2005, month=12 equals < 20060101
+ // year=2005, month=12, day=5 equals < 20051206
+ if ( $year <= 0 ) {
// If no year given, assume the current one
$timestamp = MWTimestamp::getInstance();
$year = $timestamp->format( 'Y' );
// If this month hasn't happened yet this year, go back to last year's month
- if ( $this->mMonth > $timestamp->format( 'n' ) ) {
+ if ( $month > $timestamp->format( 'n' ) ) {
$year--;
}
}
- if ( $this->mMonth ) {
- $month = $this->mMonth + 1;
- // For December, we want January 1 of the next year
+ if ( $month && $month > 0 && $month < 13 ) {
+ // Day validity check after we have month and year checked
+ $day = checkdate( $month, $day, $year ) ? $day : false;
+
+ if ( $day && $day > 0 ) {
+ // If we have a day, we want up to the day immediately afterward
+ $day++;
+
+ // Did we overflow the current month?
+ if ( !checkdate( $month, $day, $year ) ) {
+ $day = 1;
+ $month++;
+ }
+ } else {
+ // If no day, assume beginning of next month
+ $day = 1;
+ $month++;
+ }
+
+ // Did we overflow the current year?
if ( $month > 12 ) {
$month = 1;
$year++;
}
+
} else {
// No month implies we want up to the end of the year in question
$month = 1;
+ $day = 1;
$year++;
}
$year = 2032;
}
- $ymd = (int)sprintf( "%04d%02d01", $year, $month );
+ $ymd = (int)sprintf( "%04d%02d%02d", $year, $month, $day );
if ( $ymd > 20320101 ) {
$ymd = 20320101;
}
- // Treat the given time in the wiki timezone and get a UTC timestamp for the database lookup
- $timestamp = MWTimestamp::getInstance( "${ymd}000000" );
- $timestamp->setTimezone( $this->getConfig()->get( 'Localtimezone' ) );
-
- $this->mOffset = $this->mDb->timestamp( $timestamp->getTimestamp() );
+ return MWTimestamp::getInstance( "${ymd}000000" );
}
}
dépôts / lhc / web / wiklou.git / blobdiff