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====Tricks I've learned====
Here are some nifty hacks I've done to Wikka:
>>Working for 1.1.6.2 to 1.1.6.4 (latest)>>
- Preventing links to the current host as being marked as 'external'. For instance, you've got Wikka installed at ""http://some.host.com/wikka/"" and you link to a file ""http://some.host.com/files/file.txt"". I didn't like the fact that Wikka marked it as 'external'. Yes, its external to Wikka, but not external to the site. So, here's a little hack to make Wikka match my personal preference:


Find this line in /libs/Wakka.class.php (around line 660):
%%(php)
$external_link_tail = $this->GetConfigValue("external_link_tail");
return $url ? "<a class=\"ext\" href=\"$url\">$text</a>$external_link_tail" : $text;
%%

and replace with:
%%(php)
$url_parts = parse_url($url);
$base_parts = parse_url($this->config['base_url']);

if($url_parts['host'] != $base_parts['host'])
{
$external_link_tail = $this->GetConfigValue("external_link_tail");
return $url ? "<a class=\"ext\" href=\"$url\">$text</a>$external_link_tail" : $text;
}
else
{
return $url ? "<a href=\"$url\">$text</a>" : $text;
}
%%

Basically, this hack is getting the base host of the url in question, and comparing that against the base host of the Wikka install. If they're different, the link is identified as an external link. Otherwise, its presented as a regular link.

- For **version 1.1.6.6.** or above, it gets even simpler:

Find these lines in /libs/Wakka.class.php (lines 1048 & 1049 in 1.1.6.6; lines 1200 & 1201 in 1.2):
%%(php)
if ('' != $url)
{%%

and **insert** this code **below** it:
%%(php)
$url_parts = parse_url($url);
$base_parts = parse_url($this->config['base_url']);
if($url_parts['host'] != $base_parts['host']) {$class = 'ext';} else {$class = '';}%%
----
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