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document EGroupware timestamps and remove own __toString() method to be able to compare objects

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This commit is contained in:
Ralf Becker 2021-01-22 15:18:10 +02:00 committed by Hadi Nategh
parent 362b74e669
commit 7960831180
2 changed files with 10 additions and 12 deletions
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20
api/src/DateTime.php
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@ -42,6 +42,13 @@ use DateInterval;
* The constructor itself throws an \Exception in that case (to be precise it does not handle the one thrown by DateTime constructor).
* Static methods server2user, user2server and to return NULL, if given time could not be parsed.
*
* Please note: EGroupware historically uses timestamps, which are NOT in UTC!
* -----------
* So in general the following thre are NOT the same value:
* a) (new Api\DateTime($time))->getTimestamp() - regular timestamp in UTC like time()
* b) (new Api\DateTime($time))->format('ts') - EGroupware timestamp in user-timezone, UI and BO objects
* c) Api\DateTime($time)::user2server('ts') - EGroupware timestamp in server-timezone, SO / integer in database
*
* @link http://www.php.net/manual/en/class.datetime.php
* @link http://www.php.net/manual/en/class.datetimezone.php
*/
@ -348,7 +355,8 @@ class DateTime extends \DateTime
case 'ts':
// ToDo: Check if PHP5.3 getTimestamp does the same, or always returns UTC timestamp
return mktime(parent::format('H'),parent::format('i'),parent::format('s'),parent::format('m'),parent::format('d'),parent::format('Y'));
case 'utc': // alias for "U" / timestamp in UTC
return $this->getTimestamp();
case 'object':
case 'datetime':
case 'egw_time':
@ -382,16 +390,6 @@ class DateTime extends \DateTime
return parent::format($type);
}
/**
* Cast object to string
*
* @return string eg. "Wednesday, 2009-11-11 11:11:11 (Europe/Berlin)"
*/
public function __toString()
{
return $this->format('l, '.self::DATABASE).' ('.$this->getTimezone()->getName().')';
}
/**
* Convert a server time into a user time
*

2
api/src/Etemplate/Widget/Date.php
View File

@ -122,7 +122,7 @@ class Date extends Transformer
if($date)
{
// postfix date-string with "Z" so javascript doesn't add/subtract anything
$value = $date->format('Y-m-d\TH:i:s\Z');
$value = $date->format(Api\DateTime::ET2);
}
return $value;
}