From: Hypolite Petovan <hypolite@mrpetovan.com>
Date: Sun, 21 Oct 2018 05:53:47 +0000 (-0400)
Subject: Move NULL_DATE from boot.php to DBA::NULL_DATETIME
X-Git-Url: https://git.mxchange.org/?a=commitdiff_plain;h=e511790d629c6057a52a0adb3aca8fc517501a1c;p=friendica.git

Move NULL_DATE from boot.php to DBA::NULL_DATETIME

- Add DBA::NULL_DATE constant
---

diff --git a/boot.php b/boot.php
index 91f62c4b4f..a1154cf756 100644
--- a/boot.php
+++ b/boot.php
@@ -345,11 +345,6 @@ define('SR_SCOPE_ALL',  'all');
 define('SR_SCOPE_TAGS', 'tags');
 /* @}*/
 
-/**
- * Lowest possible date time value
- */
-define('NULL_DATE', '0001-01-01 00:00:00');
-
 // Normally this constant is defined - but not if "pcntl" isn't installed
 if (!defined("SIGTERM")) {
 	define("SIGTERM", 15);
diff --git a/mod/events.php b/mod/events.php
index 7cdeb85f71..81ab79c722 100644
--- a/mod/events.php
+++ b/mod/events.php
@@ -15,9 +15,9 @@ use Friendica\Database\DBA;
 use Friendica\Model\Event;
 use Friendica\Model\Item;
 use Friendica\Model\Profile;
+use Friendica\Module\Login;
 use Friendica\Util\DateTimeFormat;
 use Friendica\Util\Temporal;
-use Friendica\Module\Login;
 
 require_once 'include/items.php';
 
@@ -66,8 +66,8 @@ function events_post(App $a)
 	// The default setting for the `private` field in event_store() is false, so mirror that
 	$private_event = false;
 
-	$start  = NULL_DATE;
-	$finish = NULL_DATE;
+	$start  = DBA::NULL_DATETIME;
+	$finish = DBA::NULL_DATETIME;
 
 	if ($start_text) {
 		$start = $start_text;
@@ -111,7 +111,7 @@ function events_post(App $a)
 		$a->internalRedirect($onerror_path);
 	}
 
-	if (!$summary || ($start === NULL_DATE)) {
+	if (!$summary || ($start === DBA::NULL_DATETIME)) {
 		notice(L10n::t('Event title and start time are required.') . EOL);
 		if (intval($_REQUEST['preview'])) {
 			echo L10n::t('Event title and start time are required.');
diff --git a/mod/profiles.php b/mod/profiles.php
index 734b5f19ee..a4a49ec785 100644
--- a/mod/profiles.php
+++ b/mod/profiles.php
@@ -18,10 +18,10 @@ use Friendica\Database\DBA;
 use Friendica\Model\Contact;
 use Friendica\Model\GContact;
 use Friendica\Model\Profile;
+use Friendica\Module\Login;
 use Friendica\Network\Probe;
 use Friendica\Util\DateTimeFormat;
 use Friendica\Util\Temporal;
-use Friendica\Module\Login;
 
 function profiles_init(App $a) {
 
@@ -252,7 +252,7 @@ function profiles_post(App $a) {
 		$with = ((x($_POST,'with')) ? notags(trim($_POST['with'])) : '');
 
 		if (! strlen($howlong)) {
-			$howlong = NULL_DATE;
+			$howlong = DBA::NULL_DATETIME;
 		} else {
 			$howlong = DateTimeFormat::convert($howlong, 'UTC', date_default_timezone_get());
 		}
@@ -619,7 +619,7 @@ function profiles_content(App $a) {
 			'$gender' => ContactSelector::gender($r[0]['gender']),
 			'$marital' => ['selector' => ContactSelector::maritalStatus($r[0]['marital']), 'value' => $r[0]['marital']],
 			'$with' => ['with', L10n::t("Who: \x28if applicable\x29"), strip_tags($r[0]['with']), L10n::t('Examples: cathy123, Cathy Williams, cathy@example.com')],
-			'$howlong' => ['howlong', L10n::t('Since [date]:'), ($r[0]['howlong'] <= NULL_DATE ? '' : DateTimeFormat::local($r[0]['howlong']))],
+			'$howlong' => ['howlong', L10n::t('Since [date]:'), ($r[0]['howlong'] <= DBA::NULL_DATETIME ? '' : DateTimeFormat::local($r[0]['howlong']))],
 			'$sexual' => ['selector' => ContactSelector::sexualPreference($r[0]['sexual']), 'value' => $r[0]['sexual']],
 			'$about' => ['about', L10n::t('Tell us about yourself...'), $r[0]['about']],
 			'$xmpp' => ['xmpp', L10n::t("XMPP \x28Jabber\x29 address:"), $r[0]['xmpp'], L10n::t("The XMPP address will be propagated to your contacts so that they can follow you.")],
diff --git a/mod/settings.php b/mod/settings.php
index 970c5b7ee4..52c5f42cf0 100644
--- a/mod/settings.php
+++ b/mod/settings.php
@@ -20,11 +20,10 @@ use Friendica\Model\Contact;
 use Friendica\Model\GContact;
 use Friendica\Model\Group;
 use Friendica\Model\User;
+use Friendica\Module\Login;
 use Friendica\Protocol\Email;
 use Friendica\Util\Network;
 use Friendica\Util\Temporal;
-use Friendica\Util\Security;
-use Friendica\Module\Login;
 
 function get_theme_config_file($theme)
 {
@@ -830,7 +829,7 @@ function settings_content(App $a)
 		$mail_pubmail      = ((DBA::isResult($r)) ? $r[0]['pubmail'] : 0);
 		$mail_action       = ((DBA::isResult($r)) ? $r[0]['action'] : 0);
 		$mail_movetofolder = ((DBA::isResult($r)) ? $r[0]['movetofolder'] : '');
-		$mail_chk          = ((DBA::isResult($r)) ? $r[0]['last_check'] : NULL_DATE);
+		$mail_chk          = ((DBA::isResult($r)) ? $r[0]['last_check'] : DBA::NULL_DATETIME);
 
 
 		$tpl = get_markup_template('settings/connectors.tpl');
diff --git a/src/Core/Authentication.php b/src/Core/Authentication.php
index 76d078341f..5371cc91ec 100644
--- a/src/Core/Authentication.php
+++ b/src/Core/Authentication.php
@@ -5,17 +5,17 @@
 
 namespace Friendica\Core;
 
-use Friendica\Core\Addon;
 use Friendica\BaseObject;
+use Friendica\Core\Addon;
 use Friendica\Core\Config;
-use Friendica\Util\DateTimeFormat;
-use Friendica\Database\DBA;
 use Friendica\Core\L10n;
 use Friendica\Core\PConfig;
+use Friendica\Database\DBA;
+use Friendica\Util\DateTimeFormat;
 
 /**
 * Handle Authentification, Session and Cookies
-*/    
+*/
 class Authentication extends BaseObject
 {
 	/**
@@ -81,7 +81,7 @@ class Authentication extends BaseObject
 		$a->user = $user_record;
 
 		if ($interactive) {
-			if ($a->user['login_date'] <= NULL_DATE) {
+			if ($a->user['login_date'] <= DBA::NULL_DATETIME) {
 				$_SESSION['return_path'] = 'profile_photo/new';
 				$a->module = 'profile_photo';
 				info(L10n::t("Welcome ") . $a->user['username'] . EOL);
diff --git a/src/Core/UserImport.php b/src/Core/UserImport.php
index 54f3ec0615..18aabec08a 100644
--- a/src/Core/UserImport.php
+++ b/src/Core/UserImport.php
@@ -180,7 +180,7 @@ class UserImport
 			}
 			if ($contact['uid'] == $olduid && $contact['self'] == '0') {
 				// set contacts 'avatar-date' to NULL_DATE to let worker to update urls
-				$contact["avatar-date"] = NULL_DATE;
+				$contact["avatar-date"] = DBA::NULL_DATETIME;
 
 				switch ($contact['network']) {
 					case Protocol::DFRN:
diff --git a/src/Core/Worker.php b/src/Core/Worker.php
index 723cd809da..a06a11043d 100644
--- a/src/Core/Worker.php
+++ b/src/Core/Worker.php
@@ -4,11 +4,11 @@
  */
 namespace Friendica\Core;
 
+use Friendica\BaseObject;
 use Friendica\Database\DBA;
 use Friendica\Model\Process;
 use Friendica\Util\DateTimeFormat;
 use Friendica\Util\Network;
-use Friendica\BaseObject;
 
 require_once 'include/dba.php';
 
@@ -154,7 +154,7 @@ class Worker
 	private static function totalEntries()
 	{
 		return DBA::count('workerqueue', ["`executed` <= ? AND NOT `done` AND `next_try` < ?",
-			NULL_DATE, DateTimeFormat::utcNow()]);
+			DBA::NULL_DATETIME, DateTimeFormat::utcNow()]);
 	}
 
 	/**
@@ -164,7 +164,7 @@ class Worker
 	 */
 	private static function highestPriority()
 	{
-		$condition = ["`executed` <= ? AND NOT `done` AND `next_try` < ?", NULL_DATE, DateTimeFormat::utcNow()];
+		$condition = ["`executed` <= ? AND NOT `done` AND `next_try` < ?", DBA::NULL_DATETIME, DateTimeFormat::utcNow()];
 		$workerqueue = DBA::selectFirst('workerqueue', ['priority'], $condition, ['order' => ['priority']]);
 		if (DBA::isResult($workerqueue)) {
 			return $workerqueue["priority"];
@@ -183,7 +183,7 @@ class Worker
 	private static function processWithPriorityActive($priority)
 	{
 		$condition = ["`priority` <= ? AND `executed` > ? AND NOT `done` AND `next_try` < ?",
-			$priority, NULL_DATE, DateTimeFormat::utcNow()];
+			$priority, DBA::NULL_DATETIME, DateTimeFormat::utcNow()];
 		return DBA::exists('workerqueue', $condition);
 	}
 
@@ -553,7 +553,7 @@ class Worker
 		$entries = DBA::select(
 			'workerqueue',
 			['id', 'pid', 'executed', 'priority', 'parameter'],
-			['`executed` > ? AND NOT `done` AND `pid` != 0', NULL_DATE],
+			['`executed` > ? AND NOT `done` AND `pid` != 0', DBA::NULL_DATETIME],
 			['order' => ['priority', 'created']]
 		);
 
@@ -561,7 +561,7 @@ class Worker
 			if (!posix_kill($entry["pid"], 0)) {
 				DBA::update(
 					'workerqueue',
-					['executed' => NULL_DATE, 'pid' => 0],
+					['executed' => DBA::NULL_DATETIME, 'pid' => 0],
 					['id' => $entry["id"]]
 				);
 			} else {
@@ -597,7 +597,7 @@ class Worker
 					}
 					DBA::update(
 						'workerqueue',
-						['executed' => NULL_DATE, 'created' => DateTimeFormat::utcNow(), 'priority' => $new_priority, 'pid' => 0],
+						['executed' => DBA::NULL_DATETIME, 'created' => DateTimeFormat::utcNow(), 'priority' => $new_priority, 'pid' => 0],
 						['id' => $entry["id"]]
 					);
 				} else {
@@ -809,7 +809,7 @@ class Worker
 				'workerqueue',
 				['id'],
 				["`executed` <= ? AND `priority` < ? AND NOT `done` AND `next_try` < ?",
-				NULL_DATE, $highest_priority, DateTimeFormat::utcNow()],
+				DBA::NULL_DATETIME, $highest_priority, DateTimeFormat::utcNow()],
 				['limit' => $limit, 'order' => ['priority', 'created']]
 			);
 
@@ -826,7 +826,7 @@ class Worker
 					'workerqueue',
 					['id'],
 					["`executed` <= ? AND `priority` > ? AND NOT `done` AND `next_try` < ?",
-					NULL_DATE, $highest_priority, DateTimeFormat::utcNow()],
+					DBA::NULL_DATETIME, $highest_priority, DateTimeFormat::utcNow()],
 					['limit' => $limit, 'order' => ['priority', 'created']]
 				);
 
@@ -846,7 +846,7 @@ class Worker
 				'workerqueue',
 				['id'],
 				["`executed` <= ? AND NOT `done` AND `next_try` < ?",
-				NULL_DATE, DateTimeFormat::utcNow()],
+				DBA::NULL_DATETIME, DateTimeFormat::utcNow()],
 				['limit' => $limit, 'order' => ['priority', 'created']]
 			);
 
@@ -912,7 +912,7 @@ class Worker
 	{
 		$mypid = getmypid();
 
-		DBA::update('workerqueue', ['executed' => NULL_DATE, 'pid' => 0], ['pid' => $mypid, 'done' => false]);
+		DBA::update('workerqueue', ['executed' => DBA::NULL_DATETIME, 'pid' => 0], ['pid' => $mypid, 'done' => false]);
 	}
 
 	/**
@@ -1147,7 +1147,7 @@ class Worker
 
 		logger('Defer execution ' . $retrial . ' of id ' . $id . ' to ' . $next, LOGGER_DEBUG);
 
-		$fields = ['retrial' => $retrial + 1, 'next_try' => $next, 'executed' => NULL_DATE, 'pid' => 0];
+		$fields = ['retrial' => $retrial + 1, 'next_try' => $next, 'executed' => DBA::NULL_DATETIME, 'pid' => 0];
 		DBA::update('workerqueue', $fields, ['id' => $id]);
 	}
 
diff --git a/src/Database/DBA.php b/src/Database/DBA.php
index 8fd117e5d2..9baf409421 100644
--- a/src/Database/DBA.php
+++ b/src/Database/DBA.php
@@ -24,6 +24,9 @@ require_once 'include/dba.php';
  */
 class DBA
 {
+	const NULL_DATE     = '0001-01-01';
+	const NULL_DATETIME = '0001-01-01 00:00:00';
+
 	public static $connected = false;
 
 	private static $server_info = '';
diff --git a/src/Model/Contact.php b/src/Model/Contact.php
index 1a5c97834a..3524cd4ce1 100644
--- a/src/Model/Contact.php
+++ b/src/Model/Contact.php
@@ -8,7 +8,6 @@ use Friendica\BaseObject;
 use Friendica\Core\Addon;
 use Friendica\Core\Config;
 use Friendica\Core\L10n;
-use Friendica\Core\PConfig;
 use Friendica\Core\Protocol;
 use Friendica\Core\System;
 use Friendica\Core\Worker;
@@ -17,8 +16,8 @@ use Friendica\Model\Profile;
 use Friendica\Network\Probe;
 use Friendica\Object\Image;
 use Friendica\Protocol\ActivityPub;
-use Friendica\Protocol\Diaspora;
 use Friendica\Protocol\DFRN;
+use Friendica\Protocol\Diaspora;
 use Friendica\Protocol\OStatus;
 use Friendica\Protocol\PortableContact;
 use Friendica\Protocol\Salmon;
@@ -594,9 +593,9 @@ class Contact extends BaseObject
 			return;
 		}
 
-		if ($contact['term-date'] <= NULL_DATE) {
+		if ($contact['term-date'] <= DBA::NULL_DATETIME) {
 			DBA::update('contact', ['term-date' => DateTimeFormat::utcNow()], ['id' => $contact['id']]);
-			DBA::update('contact', ['term-date' => DateTimeFormat::utcNow()], ['`nurl` = ? AND `term-date` <= ? AND NOT `self`', normalise_link($contact['url']), NULL_DATE]);
+			DBA::update('contact', ['term-date' => DateTimeFormat::utcNow()], ['`nurl` = ? AND `term-date` <= ? AND NOT `self`', normalise_link($contact['url']), DBA::NULL_DATETIME]);
 		} else {
 			/* @todo
 			 * We really should send a notification to the owner after 2-3 weeks
@@ -629,7 +628,7 @@ class Contact extends BaseObject
 	 */
 	public static function unmarkForArchival(array $contact)
 	{
-		$condition = ['`id` = ? AND (`term-date` > ? OR `archive`)', $contact['id'], NULL_DATE];
+		$condition = ['`id` = ? AND (`term-date` > ? OR `archive`)', $contact['id'], DBA::NULL_DATETIME];
 		$exists = DBA::exists('contact', $condition);
 
 		// We don't need to update, we never marked this contact for archival
@@ -646,7 +645,7 @@ class Contact extends BaseObject
 		}
 
 		// It's a miracle. Our dead contact has inexplicably come back to life.
-		$fields = ['term-date' => NULL_DATE, 'archive' => false];
+		$fields = ['term-date' => DBA::NULL_DATETIME, 'archive' => false];
 		DBA::update('contact', $fields, ['id' => $contact['id']]);
 		DBA::update('contact', $fields, ['nurl' => normalise_link($contact['url'])]);
 
diff --git a/src/Model/Event.php b/src/Model/Event.php
index 452017e69d..e9a4d4b3fd 100644
--- a/src/Model/Event.php
+++ b/src/Model/Event.php
@@ -257,10 +257,10 @@ class Event extends BaseObject
 
 		$event['created']   = DateTimeFormat::utc(defaults($arr, 'created'  , 'now'));
 		$event['edited']    = DateTimeFormat::utc(defaults($arr, 'edited'   , 'now'));
-		$event['start']     = DateTimeFormat::utc(defaults($arr, 'start'    , NULL_DATE));
-		$event['finish']    = DateTimeFormat::utc(defaults($arr, 'finish'   , NULL_DATE));
-		if ($event['finish'] < NULL_DATE) {
-			$event['finish'] = NULL_DATE;
+		$event['start']     = DateTimeFormat::utc(defaults($arr, 'start'    , DBA::NULL_DATETIME));
+		$event['finish']    = DateTimeFormat::utc(defaults($arr, 'finish'   , DBA::NULL_DATETIME));
+		if ($event['finish'] < DBA::NULL_DATETIME) {
+			$event['finish'] = DBA::NULL_DATETIME;
 		}
 		$private = intval(defaults($arr, 'private', 0));
 
diff --git a/src/Model/GContact.php b/src/Model/GContact.php
index 681c1c3709..20e6f0751e 100644
--- a/src/Model/GContact.php
+++ b/src/Model/GContact.php
@@ -176,7 +176,7 @@ class GContact
 			if (!isset($gcontact['network']) && ($gcnt["network"] != Protocol::STATUSNET)) {
 				$gcontact['network'] = $gcnt["network"];
 			}
-			if ($gcontact['updated'] <= NULL_DATE) {
+			if ($gcontact['updated'] <= DBA::NULL_DATETIME) {
 				$gcontact['updated'] = $gcnt["updated"];
 			}
 			if (!isset($gcontact['server_url']) && (normalise_link($gcnt["server_url"]) != normalise_link($gcnt["url"]))) {
@@ -457,7 +457,7 @@ class GContact
 			intval($uid),
 			intval($uid),
 			intval($uid),
-			DBA::escape(NULL_DATE),
+			DBA::NULL_DATETIME,
 			$sql_network,
 			intval($start),
 			intval($limit)
@@ -486,7 +486,7 @@ class GContact
 			intval($uid),
 			intval($uid),
 			intval($uid),
-			DBA::escape(NULL_DATE),
+			DBA::NULL_DATETIME,
 			$sql_network,
 			intval($start),
 			intval($limit)
diff --git a/src/Model/Profile.php b/src/Model/Profile.php
index 4de49022cb..53b98fb625 100644
--- a/src/Model/Profile.php
+++ b/src/Model/Profile.php
@@ -774,7 +774,7 @@ class Profile
 				$profile['marital']['with'] = $a->profile['with'];
 			}
 
-			if (strlen($a->profile['howlong']) && $a->profile['howlong'] >= NULL_DATE) {
+			if (strlen($a->profile['howlong']) && $a->profile['howlong'] >= DBA::NULL_DATETIME) {
 				$profile['howlong'] = Temporal::getRelativeDate($a->profile['howlong'], L10n::t('for %1$d %2$s'));
 			}
 
diff --git a/src/Model/PushSubscriber.php b/src/Model/PushSubscriber.php
index 9680d359d0..e024878a58 100644
--- a/src/Model/PushSubscriber.php
+++ b/src/Model/PushSubscriber.php
@@ -21,7 +21,7 @@ class PushSubscriber
 	public static function publishFeed($uid, $default_priority = PRIORITY_HIGH)
 	{
 		$condition = ['push' => 0, 'uid' => $uid];
-		DBA::update('push_subscriber', ['push' => 1, 'next_try' => NULL_DATE], $condition);
+		DBA::update('push_subscriber', ['push' => 1, 'next_try' => DBA::NULL_DATETIME], $condition);
 
 		self::requeue($default_priority);
 	}
@@ -114,10 +114,10 @@ class PushSubscriber
 			$days = round((time() -  strtotime($subscriber['renewed'])) / (60 * 60 * 24));
 
 			if ($days > 60) {
-				DBA::update('push_subscriber', ['push' => -1, 'next_try' => NULL_DATE], ['id' => $id]);
+				DBA::update('push_subscriber', ['push' => -1, 'next_try' => DBA::NULL_DATETIME], ['id' => $id]);
 				logger('Delivery error: Subscription ' . $subscriber['callback_url'] . ' for ' . $subscriber['nickname'] . ' is marked as ended.', LOGGER_DEBUG);
 			} else {
-				DBA::update('push_subscriber', ['push' => 0, 'next_try' => NULL_DATE], ['id' => $id]);
+				DBA::update('push_subscriber', ['push' => 0, 'next_try' => DBA::NULL_DATETIME], ['id' => $id]);
 				logger('Delivery error: Giving up ' . $subscriber['callback_url'] . ' for ' . $subscriber['nickname'] . ' for now.', LOGGER_DEBUG);
 			}
 		} else {
@@ -146,7 +146,7 @@ class PushSubscriber
 		}
 
 		// set last_update to the 'created' date of the last item, and reset push=0
-		$fields = ['push' => 0, 'next_try' => NULL_DATE, 'last_update' => $last_update];
+		$fields = ['push' => 0, 'next_try' => DBA::NULL_DATETIME, 'last_update' => $last_update];
 		DBA::update('push_subscriber', $fields, ['id' => $id]);
 		logger('Subscriber ' . $subscriber['callback_url'] . ' for ' . $subscriber['nickname'] . ' is marked as vital', LOGGER_DEBUG);
 	}
diff --git a/src/Module/Contact.php b/src/Module/Contact.php
index 271740a4f5..fb0bf0edee 100644
--- a/src/Module/Contact.php
+++ b/src/Module/Contact.php
@@ -8,6 +8,7 @@ use Friendica\Content\ContactSelector;
 use Friendica\Content\Nav;
 use Friendica\Content\Text\BBCode;
 use Friendica\Content\Widget;
+use Friendica\Core\ACL;
 use Friendica\Core\Addon;
 use Friendica\Core\L10n;
 use Friendica\Core\Protocol;
@@ -15,11 +16,10 @@ use Friendica\Core\System;
 use Friendica\Core\Worker;
 use Friendica\Database\DBA;
 use Friendica\Model;
+use Friendica\Module\Login;
 use Friendica\Network\Probe;
 use Friendica\Util\DateTimeFormat;
 use Friendica\Util\Proxy as ProxyUtils;
-use Friendica\Core\ACL;
-use Friendica\Module\Login;
 
 /**
  *  Manages and show Contacts and their content
@@ -522,9 +522,9 @@ class Contact extends BaseModule
 
 			$insecure = L10n::t('Private communications are not available for this contact.');
 
-			$last_update = (($contact['last-update'] <= NULL_DATE) ? L10n::t('Never') : DateTimeFormat::local($contact['last-update'], 'D, j M Y, g:i A'));
+			$last_update = (($contact['last-update'] <= DBA::NULL_DATETIME) ? L10n::t('Never') : DateTimeFormat::local($contact['last-update'], 'D, j M Y, g:i A'));
 
-			if ($contact['last-update'] > NULL_DATE) {
+			if ($contact['last-update'] > DBA::NULL_DATETIME) {
 				$last_update .= ' ' . (($contact['last-update'] <= $contact['success_update']) ? L10n::t('(Update was successful)') : L10n::t('(Update was not successful)'));
 			}
 			$lblsuggest = (($contact['network'] === Protocol::DFRN) ? L10n::t('Suggest friends') : '');
@@ -536,7 +536,7 @@ class Contact extends BaseModule
 			// tabs
 			$tab_str = self::getTabsHTML($a, $contact, 3);
 
-			$lost_contact = (($contact['archive'] && $contact['term-date'] > NULL_DATE && $contact['term-date'] < DateTimeFormat::utcNow()) ? L10n::t('Communications lost with this contact!') : '');
+			$lost_contact = (($contact['archive'] && $contact['term-date'] > DBA::NULL_DATETIME && $contact['term-date'] < DateTimeFormat::utcNow()) ? L10n::t('Communications lost with this contact!') : '');
 
 			$fetch_further_information = null;
 			if ($contact['network'] == Protocol::FEED) {
diff --git a/src/Protocol/PortableContact.php b/src/Protocol/PortableContact.php
index 0e4d58d1c1..bb7ccd564a 100644
--- a/src/Protocol/PortableContact.php
+++ b/src/Protocol/PortableContact.php
@@ -113,7 +113,7 @@ class PortableContact
 			$connect_url = '';
 			$name = '';
 			$network = '';
-			$updated = NULL_DATE;
+			$updated = DBA::NULL_DATETIME;
 			$location = '';
 			$about = '';
 			$keywords = '';
@@ -317,7 +317,7 @@ class PortableContact
 
 		$contact = ["url" => $profile];
 
-		if ($gcontacts[0]["created"] <= NULL_DATE) {
+		if ($gcontacts[0]["created"] <= DBA::NULL_DATETIME) {
 			$contact['created'] = DateTimeFormat::utcNow();
 		}
 
@@ -522,7 +522,7 @@ class PortableContact
 		// Maybe there aren't any entries. Then check if it is a valid feed
 		if ($last_updated == "") {
 			if ($xpath->query('/atom:feed')->length > 0) {
-				$last_updated = NULL_DATE;
+				$last_updated = DBA::NULL_DATETIME;
 			}
 		}
 
@@ -931,7 +931,7 @@ class PortableContact
 
 		$gserver = DBA::selectFirst('gserver', [], ['nurl' => normalise_link($server_url)]);
 		if (DBA::isResult($gserver)) {
-			if ($gserver["created"] <= NULL_DATE) {
+			if ($gserver["created"] <= DBA::NULL_DATETIME) {
 				$fields = ['created' => DateTimeFormat::utcNow()];
 				$condition = ['nurl' => normalise_link($server_url)];
 				DBA::update('gserver', $fields, $condition);
@@ -954,12 +954,12 @@ class PortableContact
 
 			// See discussion under https://forum.friendi.ca/display/0b6b25a8135aabc37a5a0f5684081633
 			// It can happen that a zero date is in the database, but storing it again is forbidden.
-			if ($last_contact < NULL_DATE) {
-				$last_contact = NULL_DATE;
+			if ($last_contact < DBA::NULL_DATETIME) {
+				$last_contact = DBA::NULL_DATETIME;
 			}
 
-			if ($last_failure < NULL_DATE) {
-				$last_failure = NULL_DATE;
+			if ($last_failure < DBA::NULL_DATETIME) {
+				$last_failure = DBA::NULL_DATETIME;
 			}
 
 			if (!$force && !self::updateNeeded($gserver["created"], "", $last_failure, $last_contact)) {
@@ -976,8 +976,8 @@ class PortableContact
 			$register_policy = -1;
 			$registered_users = 0;
 
-			$last_contact = NULL_DATE;
-			$last_failure = NULL_DATE;
+			$last_contact = DBA::NULL_DATETIME;
+			$last_failure = DBA::NULL_DATETIME;
 		}
 		logger("Server ".$server_url." is outdated or unknown. Start discovery. Force: ".$force." Created: ".$gserver["created"]." Failure: ".$last_failure." Contact: ".$last_contact, LOGGER_DEBUG);
 
@@ -1794,7 +1794,7 @@ class PortableContact
 			$connect_url = '';
 			$name = '';
 			$network = '';
-			$updated = NULL_DATE;
+			$updated = DBA::NULL_DATETIME;
 			$location = '';
 			$about = '';
 			$keywords = '';
diff --git a/src/Util/Temporal.php b/src/Util/Temporal.php
index 0cc759da14..bc7639b3b7 100644
--- a/src/Util/Temporal.php
+++ b/src/Util/Temporal.php
@@ -11,6 +11,7 @@ use DateTimeZone;
 use Friendica\Core\Config;
 use Friendica\Core\L10n;
 use Friendica\Core\PConfig;
+use Friendica\Database\DBA;
 
 require_once 'boot.php';
 require_once 'include/text.php';
@@ -290,7 +291,7 @@ class Temporal
 
 		$abs = strtotime($localtime);
 
-		if (is_null($posted_date) || $posted_date <= NULL_DATE || $abs === false) {
+		if (is_null($posted_date) || $posted_date <= DBA::NULL_DATETIME || $abs === false) {
 			return L10n::t('never');
 		}
 
diff --git a/src/Worker/Cron.php b/src/Worker/Cron.php
index 54e6cb676e..9510063337 100644
--- a/src/Worker/Cron.php
+++ b/src/Worker/Cron.php
@@ -204,7 +204,7 @@ class Cron
 		foreach ($contacts as $contact) {
 
 			if ($manual_id) {
-				$contact['last-update'] = NULL_DATE;
+				$contact['last-update'] = DBA::NULL_DATETIME;
 			}
 
 			// Friendica and OStatus are checked once a day
diff --git a/src/Worker/CronJobs.php b/src/Worker/CronJobs.php
index bd34449729..a564bd0b0d 100644
--- a/src/Worker/CronJobs.php
+++ b/src/Worker/CronJobs.php
@@ -108,7 +108,7 @@ class CronJobs
 	private static function expireAndRemoveUsers()
 	{
 		// expire any expired regular accounts. Don't expire forums.
-		$condition = ["NOT `account_expired` AND `account_expires_on` > ? AND `account_expires_on` < UTC_TIMESTAMP() AND `page-flags` = 0", NULL_DATE];
+		$condition = ["NOT `account_expired` AND `account_expires_on` > ? AND `account_expires_on` < UTC_TIMESTAMP() AND `page-flags` = 0", DBA::NULL_DATETIME];
 		DBA::update('user', ['account_expired' => true], $condition);
 
 		// Remove any freshly expired account
diff --git a/src/Worker/OnePoll.php b/src/Worker/OnePoll.php
index be6d5a549e..5227c7983d 100644
--- a/src/Worker/OnePoll.php
+++ b/src/Worker/OnePoll.php
@@ -12,8 +12,8 @@ use Friendica\Core\Protocol;
 use Friendica\Database\DBA;
 use Friendica\Model\Contact;
 use Friendica\Model\Item;
-use Friendica\Protocol\Email;
 use Friendica\Protocol\ActivityPub;
+use Friendica\Protocol\Email;
 use Friendica\Protocol\PortableContact;
 use Friendica\Util\DateTimeFormat;
 use Friendica\Util\Network;
@@ -121,7 +121,7 @@ class OnePoll
 			$hub_update = false;
 		}
 
-		$last_update = (($contact['last-update'] <= NULL_DATE)
+		$last_update = (($contact['last-update'] <= DBA::NULL_DATETIME)
 			? DateTimeFormat::utc('now - 7 days', DateTimeFormat::ATOM)
 			: DateTimeFormat::utc($contact['last-update'], DateTimeFormat::ATOM)
 		);
@@ -252,7 +252,7 @@ class OnePoll
 				self::updateContact($contact, $fields);
 
 				Contact::markForArchival($contact);
-			} elseif ($contact['term-date'] > NULL_DATE) {
+			} elseif ($contact['term-date'] > DBA::NULL_DATETIME) {
 				logger("$url back from the dead - removing mark for death");
 				Contact::unmarkForArchival($contact);
 			}