Creating an “Announcement” without associated boards throws

**Tim Düsterhus** · Jul 7th 2019

Create a thread with type “Announcement”.
De-select all boards.
Submit.
Notice it works fine.
Open the “Edit Thread” dialog
De-select all boards
Submit the dialog.
Notice the following Exception:

Requested URL: /forum/index.php?ajax-proxy/&t=*snip*

Referrer: https://www.example.com/forum/index.php?thread/*snip*/

Error Message: Undefined index: boardIDs

Type: wcf\system\exception\ErrorException

File (Line): /var/www/virtual/xxx/www.example.com/lib/system/WCF.class.php (346)

Stacktrace

/var/www/virtual/xxx/www.example.com/forum/lib/system/thread/editor/DefaultThreadEditor.class.php (124): wcf\system\WCF::handleError(…)
/var/www/virtual/xxx/www.example.com/forum/lib/system/thread/ThreadHandler.class.php (84): wbb\system\thread\editor\DefaultThreadEditor->validate(…)
/var/www/virtual/xxx/www.example.com/forum/lib/data/thread/ThreadAction.class.php (683): wbb\system\thread\ThreadHandler->saveEdit(…)
[internal function] (?): wbb\data\thread\ThreadAction->saveEdit(…)
/var/www/virtual/xxx/www.example.com/lib/data/AbstractDatabaseObjectAction.class.php (204): call_user_func(…)
/var/www/virtual/xxx/www.example.com/lib/action/AJAXProxyAction.class.php (75): wcf\data\AbstractDatabaseObjectAction->executeAction(…)
/var/www/virtual/xxx/www.example.com/lib/action/AJAXInvokeAction.class.php (104): wcf\action\AJAXProxyAction->invoke(…)
/var/www/virtual/xxx/www.example.com/lib/action/AbstractAction.class.php (47): wcf\action\AJAXInvokeAction->execute(…)
/var/www/virtual/xxx/www.example.com/lib/action/AJAXInvokeAction.class.php (63): wcf\action\AbstractAction->__run(…)
/var/www/virtual/xxx/www.example.com/lib/system/request/Request.class.php (83): wcf\action\AJAXInvokeAction->__run(…)
/var/www/virtual/xxx/www.example.com/lib/system/request/RequestHandler.class.php (96): wcf\system\request\Request->execute(…)
/var/www/virtual/xxx/www.example.com/forum/index.php (9): wcf\system\request\RequestHandler->handle(…)

Sun, 07 Jul 2019 08:06:33 +0000
Message: Undefined index: boardIDs
PHP version: 7.2.20
WoltLab Suite version: 3.1.9 pl 2
Request URI: /forum/index.php?ajax-proxy/&t=*snip*
Referrer: https://www.example.com/forum/index.php?thread/*snip*/
User Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:67.0) Gecko/20100101 Firefox/67.0
Peak Memory Usage: 2047392/268435456
======
Error Class: wcf\system\exception\ErrorException
Error Message: Undefined index: boardIDs
Error Code: 0
File: /var/www/virtual/xxx/www.example.com/lib/system/WCF.class.php (346)
Extra Information: -
Stack Trace: [{"file":"\/var\/www\/virtual\/xxx\/www.example.com\/forum\/lib\/system\/thread\/editor\/DefaultThreadEditor.class.php","line":124,"function":"handleError","class":"wcf\\system\\WCF","type":"::","args":[8,"Undefined index: boardIDs","\/var\/www\/virtual\/xxx\/www.example.com\/forum\/lib\/system\/thread\/editor\/DefaultThreadEditor.class.php",124,{"data":"[redacted]"}]},{"file":"\/var\/www\/virtual\/xxx\/www.example.com\/forum\/lib\/system\/thread\/ThreadHandler.class.php","line":84,"function":"validate","class":"wbb\\system\\thread\\editor\\DefaultThreadEditor","type":"->","args":[{"topic":"[redacted]","type":"[redacted]"}]},{"file":"\/var\/www\/virtual\/xxx\/www.example.com\/forum\/lib\/data\/thread\/ThreadAction.class.php","line":683,"function":"saveEdit","class":"wbb\\system\\thread\\ThreadHandler","type":"->","args":["77",{"default":"[redacted]"}]},{"function":"saveEdit","class":"wbb\\data\\thread\\ThreadAction","type":"->","args":[],"file":"[internal function]","line":"?"},{"file":"\/var\/www\/virtual\/xxx\/www.example.com\/lib\/data\/AbstractDatabaseObjectAction.class.php","line":204,"function":"call_user_func","args":[["[redacted]","[redacted]"]],"class":"","type":""},{"file":"\/var\/www\/virtual\/xxx\/www.example.com\/lib\/action\/AJAXProxyAction.class.php","line":75,"function":"executeAction","class":"wcf\\data\\AbstractDatabaseObjectAction","type":"->","args":[]},{"file":"\/var\/www\/virtual\/xxx\/www.example.com\/lib\/action\/AJAXInvokeAction.class.php","line":104,"function":"invoke","class":"wcf\\action\\AJAXProxyAction","type":"->","args":[]},{"file":"\/var\/www\/virtual\/xxx\/www.example.com\/lib\/action\/AbstractAction.class.php","line":47,"function":"execute","class":"wcf\\action\\AJAXInvokeAction","type":"->","args":[]},{"file":"\/var\/www\/virtual\/xxx\/www.example.com\/lib\/action\/AJAXInvokeAction.class.php","line":63,"function":"__run","class":"wcf\\action\\AbstractAction","type":"->","args":[]},{"file":"\/var\/www\/virtual\/xxx\/www.example.com\/lib\/system\/request\/Request.class.php","line":83,"function":"__run","class":"wcf\\action\\AJAXInvokeAction","type":"->","args":[]},{"file":"\/var\/www\/virtual\/xxx\/www.example.com\/lib\/system\/request\/RequestHandler.class.php","line":96,"function":"execute","class":"wcf\\system\\request\\Request","type":"->","args":[]},{"file":"\/var\/www\/virtual\/xxx\/www.example.com\/forum\/index.php","line":9,"function":"handle","class":"wcf\\system\\request\\RequestHandler","type":"->","args":["wbb"]}]

Creating an “Announcement” without associated boards throws

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