Issue: bug in templates with if exist check on image (or even text with imagelink)

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October 18, 2011 8:08 AM

Lord Doys

Junior Member

bug in templates with if exist check on image (or even text with imagelink)

I found a strange bug while dealing with an IF statement to check if a image is given.

in the first template i check on every item:
[if="{{{title|}}}"]{{{title}}}[/if]
[if="{{{image|}}}"]{{{image}}}[/if]
[if="{{{textimage|}}}"]{{{textimage}}}[/if]
[if="{{{below|}}}"]{{{below}}}[/if]

title and below are displayed, image is not. even the text with image is not displayed

in the seccond template, i just display them without checking:
{{{title}}}
{{{image}}}
{{{textimage}}}
{{{below}}}

see:
https://www.vaultwiki.org/demo/TestArjan

also the aligning is strange.
in {{{textimage}}}, i write the text first THEN the image, but it displays the image first, then the text

Issue Details

Issue Number 2508

Issue Type Bug

Project VaultWiki 3.x Series

Category Templates

Status Fixed

Priority 3 - Loss of Functionality

Affected Version 3.0.14

Fixed Version 3.0.15

Milestone (none)

Software DependencyAny

Users able to reproduce bug 0

Users unable to reproduce bug 0

Attachments 0

Assigned Users (none)

Tags (none)

October 18, 2011 5:04 PM

pegasus

VaultWiki Team

Intriguing... Okay the problem here is that IF interprets | in the option value as a delimiter that means left-side == right-side, as in MediaWiki with #ifeq, and at the same time we have passed in a parameter that when evaluated also contains |.

We can make the following changes, which should make IF ignore | (or any other comparative delimiter, for that matter) if it was included by a template parameter. It seems to have worked in the reproduction you posted here.

In vault/class/bbcode/template.php, find:

Code:

				$text = str_replace($param['find'], $value, $text);

Replace with:

Code:

				$text = str_replace($param['find'], '&lt;!-- was param --&gt;' . $value . '&lt;!-- / was param --&gt;', $text);

In vault/class/bbcode/extension.php, find:

Code:

			$condmatch = preg_split('#(\||==|!=|&lt;&gt;|&gt;=|&lt;=|&gt;|&lt;)#', $cond, 3, PREG_SPLIT_DELIM_CAPTURE);

			if (count($condmatch) == 3)
			{

Replace with:

Code:

			$condmatch = preg_split('#(?:&lt;\!-- / was param --&gt;)?\s*(\||==|!=|&lt;&gt;|&gt;=|&lt;=|&gt;|&lt;)#', $cond, 3, PREG_SPLIT_DELIM_CAPTURE);

			if (count($condmatch) == 3)
			{
				foreach ($condmatch AS $key => $match)
				{
					$condmatch["$key"] = str_replace(array(
						'&lt;!-- was param --&gt;',
						'&lt;!-- / was param --&gt;'
					), '', $match);
				}

This petition for a change to Awaiting Feedback was rejected
October 19, 2011 3:50 AM
Lord Doys

Junior Member
I have adjusted the files, but it didnt seem to be working.
I was playing arround with the template and suddenly i had an image..

looking at the difference i noticed that once i put a parameter to the image.. then it stops working

Code:

[image]picture.png|left[/image] [image]picture.png|right[/image] [image]picture.png|center[/image] [image]picture.png|100px[/image] [image]picture.png|thumb[/image]

all dont work..

so only:

Code:

[image]picture.png[/image]

works
October 19, 2011 6:48 AM

pegasus

VaultWiki Team

This is exactly what I was talking about in the previous post, but it's not about the parameter specifically, it's about the | that separates the parameter.

The change I posted fixes the issue here so I don't know what else to do for you. Keep in mind that the change is probably not immediate because the incorrect version is saved in your forum's post cache. You can always view an uncached version of an article by adding &redirect=no to the URL.

If you can reproduce the issue again here I will look at it again.

Reply
October 19, 2011 7:35 AM

Lord Doys

Junior Member

cant reproduce, cant fix, no clue...

Reply
October 19, 2011 9:22 AM

Lord Doys

Junior Member

I have found the cause of it, and i am able to reproduce and fix it.

its all about the admin setting: Enable support for Legacy Wiki Markup?
if you put this on disable, then everything works as intended.

When put on "MediaWiki" (like i had/have) then things stop working

Reply
October 19, 2011 9:41 AM
Lord Doys

Junior Member
the fixes a described do cause some other problems in other templates.

I have updated https://www.vaultwiki.org/demo/TestArjan?redirect=no to reproduce
there you see the result of another template :  view •  d • e 

it should (and IS when i turn on legacy): view • d • e
and, the links were working before.. now they have turned red with an endless long line of "was param"

Code:

<a id="autolink__13771_1" class="vw-link new" href="https://www.vaultwiki.org/pages/Template:was-param-name-was-param" title="Template:{{{name}}} (not yet written)" rel="nofollow"><span title="View" class="vw-span">view</span></a>
Reply
October 19, 2011 3:44 PM
pegasus

VaultWiki Team
Fixed the links. In vault/class/bbcode/template.php, find:

Code:

$text = str_replace($match[0], "[noedit]" . $template_text . "[/noedit]", $text);

Add before:

Code:

$text = str_replace(array( '', '' ), '', $text);

The &nbsp; issue is actually expected when legacy is turned off, since vBulletin doesn't have very good HTML-entity support when HTML is turned off. The only thing I can think to do is replace &nbsp; with empty span tags during a conversion, but this can get messy fast. In the case that you have, you should add a padding property to the span rather than the spaces.

I am looking at the other issue now.
Reply

+ Reply

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Issue: bug in templates with if exist check on image (or even text with imagelink)

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