Issue: When trying to physically remove post from thread

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July 15, 2008 1:08 PM
NickyPhils

VaultWiki Team
When trying to physically remove post from thread

When I tried to do the thing written above, there was an error.

I made a post in the thread with the poll on categories and special pages. However, my post was double posted by the Quick Reply. I thought it would add the post to the thread by Ajax, but instead it reloaded the page. Thinking the double post to be a routine lapse of intelligence by the forum, I proceeded to edit the second of the double post, leaving the first intact. I then thought it was stupid to have both, so I used the Edit button and then the Delete button. I tried to Physically Remove the message, under the reason "Double post".

The action resulted in a white error page.

Code:

Warning: implode() [function.implode]: Invalid arguments passed in /home/crackede/public_html/vault/special_plugins_data.php on line 326 Database error in vBulletin 3.7.2: Invalid SQL: DELETE FROM forum_vault_link WHERE postid IN (); MySQL Error : You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near ')' at line 2 Error Number : 1064 Request Date : Tuesday, July 15th 2008 @ 10:54:18 AM Error Date : Tuesday, July 15th 2008 @ 10:54:18 AM Script : hxxp://www.crackedeggstudios.com/editpost.php Referrer : hxxp://www.crackedeggstudios.com/showthread.php?p=2908&posted=1 IP Address : xxx.xxx.xxx.xxx Username : NickyPhils

Issue Details

Issue Number 85

Issue Type Bug

Project VaultWiki 3.x Series

Category Inline Moderation

Status Fixed

Priority 2 - Fatal / Database Errors

Affected Version 2.0.0 RC3

Fixed Version 2.0.0

Milestone VaultWiki 2.0.0

Software DependencyAny

Users able to reproduce bug 1

Users unable to reproduce bug 0

Attachments 0

Assigned Users NickyPhils, pegasus

Tags (none)

July 15, 2008 4:40 PM

pegasus

VaultWiki Team

Fixed the delete part of the report. In this situation only a single ID was passed into the link cache cleaner, and was not part of an array when the implode was attempted. Thus, an error was thrown and a 'false' value inserted into the query, causing this 1064.

The double posting bug looks like it is going to be a pain to locate, though.

Reply
July 15, 2008 5:31 PM
pegasus

VaultWiki Team
Okay... here's a break-down of why the Double Post error appears.

You attempt to post via Quick Reply. If the Quick Reply will be AJAX, the chain continues.
AJAX fetches the new posts to the thread.
A database error occurs because $threadinfo[threadid] in NULL, so AJAX receives no posts.
AJAX thinks it failed to make the reply, so it tries to post again without using AJAX, and just reloads the page.
The second attempt is the Double Post, and we see a notice that we already made this post.

So the question becomes: why was $threadinfo['threadid'] NULL?

By saving the value of threadinfo before the reply is saved and restoring it afterwards, we can narrow down the origin of the change to occurring during the Link Caching process, when the BB-Code Parser is run to find valid wiki links. However, since replies do not use the Wiki Code Parser, this seriously limits the extent to which $threadinfo can be modified (for example Redirects would not be processed).

So now I'm looking at the parser plugins.
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July 15, 2008 6:11 PM

pegasus

VaultWiki Team

Because the Wiki Code Parser is passed through the Link Cacher frequently enough anyway, it's probably best to save/restore the various infos at that point anyway. This fixes the problem, but bothers me that I can't find the exact line it occurs on in the standard BB-Code Parser. If somehow the Plaintext Parser were loaded, I would understand.

Anyway, Fixed. But not really. Still errors, but caught. So no more DB error and double posting.

Reply
July 16, 2008 7:48 AM

Hilary

Junior Member

Should I be upgrading to get this fixed? (And are there special upgrade instructions somewhere?)

By the way, the error messages (1064, post.threadid = blank) are still generated when there is no sign of anything wrong during posting.

Reply
July 16, 2008 12:03 PM

pegasus

VaultWiki Team

This was not fixed in RC3. You will have to wait until the next release. Another way around this is turning off AJAX in Quick Reply until then.

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August 4, 2008 8:46 PM

pegasus

VaultWiki Team

Reopening this, because the Quick Reply issue happened again today.

Reply
August 5, 2008 1:55 AM

pegasus

VaultWiki Team

My newest theory is that this is caused by the fix for legacy wiki links on newthread.php, which was mainly added because $threadinfo['namespaceid'] was not set before the thread was saved. This code sets $threadinfo = $vault->parser['thread'], which may or may not include a thread ID. Why this branch of special_postdata_postsave() would ever be called on newreply.php is beyond me, but why it does not occur consistently is just as baffling.

I changed this code to an array_merge(), so hopefully an existing thread ID will not be affected. Marking this as fixed until I see it again.

Reply

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Issue: When trying to physically remove post from thread

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