Error nach Update auf 1.3
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 Hi, nach dem Update kann sich niemand mehr einloggen. 
 Folgende Meldung kommt:Database error : Query error: 'UPDATE isys_user_session SET isys_user_session__isys_obj__id ='' WHERE isys_user_session__php_sid='54l1c4g205ec2iqeaplcps7m01';': Cannot add or update a child row: a foreign key constraint fails ( idoit_data.isys_user_session, CONSTRAINTisys_user_session_ibfk_2FOREIGN KEY (isys_user_session__isys_obj__id) REFERENCESisys_obj(isys_obj__id) ON DELETE CASCADE ON UPDA)Hat jemand ähnliche Probleme? 
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 Guten Morgen, auch wir haben das Problem das sich keiner mehr anmelden kann. In der apache error.log findet sich bei uns folgender Fehler [Tue Mar 11 09:11:56 2014] [error] [client xxx.xxx.xxx.xxx] PHP Warning: mysql_real_escape_string(): Access denied for user 'www-data'@'localhost' (using password: NO) in /var/www/idoit/src/classes/components/isys_component_database_mysqli.class.php on line 162, referer: http://xxx.xxx.xxx.xxx/idoit/ [Tue Mar 11 09:11:56 2014] [error] [client xxx.xxx.xxx.xxx] PHP Warning: mysql_real_escape_string(): A link to the server could not be established in /var/www/idoit/src/classes/components/isys_component_database_mysqli.class.php on line 162, referer: http://xxx.xxx.xxx.xxx/idoit/ [Tue Mar 11 09:11:56 2014] [error] [client xxx.xxx.xxx.xxx] PHP Warning: mysql_real_escape_string(): Access denied for user 'www-data'@'localhost' (using password: NO) in /var/www/idoit/src/classes/components/isys_component_database_mysqli.class.php on line 162, referer: http://xxx.xxx.xxx.xxx/idoit/ [Tue Mar 11 09:11:56 2014] [error] [client xxx.xxx.xxx.xxx] PHP Warning: mysql_real_escape_string(): A link to the server could not be established in /var/www/idoit/src/classes/components/isys_component_database_mysqli.class.php on line 162, referer: http://xxx.xxx.xxx.xxx/idoit/ [Tue Mar 11 09:11:56 2014] [error] [client xxx.xxx.xxx.xxx] PHP Warning: mysql_real_escape_string(): Access denied for user 'www-data'@'localhost' (using password: NO) in /var/www/idoit/src/classes/components/isys_component_database_mysqli.class.php on line 162, referer: http://xxx.xxx.xxx.xxx/idoit/ [Tue Mar 11 09:11:56 2014] [error] [client xxx.xxx.xxx.xxx] PHP Warning: mysql_real_escape_string(): A link to the server could not be established in /var/www/idoit/src/classes/components/isys_component_database_mysqli.class.php on line 162, referer: http://xxx.xxx.xxx.xxx/idoit/ [Tue Mar 11 09:11:56 2014] [error] [client xxx.xxx.xxx.xxx] PHP Warning: mysql_real_escape_string(): Access denied for user 'www-data'@'localhost' (using password: NO) in /var/www/idoit/src/classes/components/isys_component_database_mysqli.class.php on line 162, referer: http://xxx.xxx.xxx.xxx/idoit/ [Tue Mar 11 09:11:56 2014] [error] [client xxx.xxx.xxx.xxx] PHP Warning: mysql_real_escape_string(): A link to the server could not be established in /var/www/idoit/src/classes/components/isys_component_database_mysqli.class.php on line 162, referer: http://xxx.xxx.xxx.xxx/idoit/ [Tue Mar 11 09:11:56 2014] [error] [client xxx.xxx.xxx.xxx] PHP Warning: mysql_real_escape_string(): Access denied for user 'www-data'@'localhost' (using password: NO) in /var/www/idoit/src/classes/components/isys_component_database_mysqli.class.php on line 162, referer: http://xxx.xxx.xxx.xxx/idoit/ [Tue Mar 11 09:11:56 2014] [error] [client xxx.xxx.xxx.xxx] PHP Warning: mysql_real_escape_string(): A link to the server could not be established in /var/www/idoit/src/classes/components/isys_component_database_mysqli.class.php on line 162, referer: http://xxx.xxx.xxx.xxx/idoit/ [Tue Mar 11 09:11:56 2014] [error] [client xxx.xxx.xxx.xxx] PHP Warning: mysql_real_escape_string(): Access denied for user 'www-data'@'localhost' (using password: NO) in /var/www/idoit/src/classes/components/isys_component_database_mysqli.class.php on line 162, referer: http://xxx.xxx.xxx.xxx/idoit/ [Tue Mar 11 09:11:56 2014] [error] [client xxx.xxx.xxx.xxx] PHP Warning: mysql_real_escape_string(): A link to the server could not be established in /var/www/idoit/src/classes/components/isys_component_database_mysqli.class.php on line 162, referer: http://xxx.xxx.xxx.xxx/idoit/ Waiting for data... (interrupt to abort)Bei uns kommt allerdings kein Fehler auf der Login Seite nur die Meldung Login attempt failed. Please try again. Gruß 
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 Unser fehler ist behoben. 
 In der config.inc.php war bei db_type mysqli hinterlegt.
 Wohl noch aus unsere open-Installation.
 Hab den Wert jetzt auch mysql angepasst und dann ging auch der Login wieder.Gruß 
 Yoda
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 Hatte eben den selben Fehler. Danke für den Tipp!