65 lines
1.4 KiB
PHP
65 lines
1.4 KiB
PHP
<?php
|
|
|
|
/**
|
|
* Adds URLSegment functionality to Tags & Categories.
|
|
*
|
|
* @package silverstripe
|
|
* @subpackage blog
|
|
*/
|
|
class URLSegmentExtension extends DataExtension
|
|
{
|
|
/**
|
|
* @var array
|
|
*/
|
|
private static $db = array(
|
|
'URLSegment' => 'Varchar(255)',
|
|
);
|
|
|
|
/**
|
|
* {@inheritdoc}
|
|
*/
|
|
public function onBeforeWrite()
|
|
{
|
|
$this->owner->generateURLSegment();
|
|
}
|
|
|
|
/**
|
|
* Generates a unique URLSegment from the title.
|
|
*
|
|
* @param int $increment
|
|
*
|
|
* @return string
|
|
*/
|
|
public function generateURLSegment($increment = null)
|
|
{
|
|
$filter = new URLSegmentFilter();
|
|
|
|
$this->owner->URLSegment = $filter->filter($this->owner->Title);
|
|
|
|
if (is_int($increment)) {
|
|
$this->owner->URLSegment .= '-' . $increment;
|
|
}
|
|
|
|
$duplicate = DataList::create($this->owner->ClassName)->filter(array(
|
|
'URLSegment' => $this->owner->URLSegment,
|
|
'BlogID' => $this->owner->BlogID,
|
|
));
|
|
|
|
if ($this->owner->ID) {
|
|
$duplicate = $duplicate->exclude('ID', $this->owner->ID);
|
|
}
|
|
|
|
if ($duplicate->count() > 0) {
|
|
if (is_int($increment)) {
|
|
$increment += 1;
|
|
} else {
|
|
$increment = 0;
|
|
}
|
|
|
|
$this->owner->generateURLSegment((int) $increment);
|
|
}
|
|
|
|
return $this->owner->URLSegment;
|
|
}
|
|
}
|