48 lines
1.2 KiB
PHP
Executable File
48 lines
1.2 KiB
PHP
Executable File
<?php
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/**
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* Adds URLSegment functionality to Tags & Categories
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*
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* @package silverstripe
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* @subpackage blog
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*
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* @author Michael Strong <github@michaelstrong.co.uk>
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**/
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class URLSegmentExtension extends DataExtension {
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private static $db = array(
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"URLSegment" => "Varchar(255)"
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);
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public function onBeforeWrite() {
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$this->owner->generateURLSegment();
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}
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/**
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* Generates a unique URLSegment from the title.
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*
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* @param $increment
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*
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* @return string URLSegment
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**/
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public function generateURLSegment($increment = null) {
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$filter = new URLSegmentFilter();
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$this->owner->URLSegment = $filter->filter($this->owner->Title);
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if(is_int($increment)) $this->owner->URLSegment .= '-' . $increment;
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// Check to see if the URLSegment already exists
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$duplicate = DataList::create($this->owner->ClassName)->filter(array(
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"URLSegment" => $this->owner->URLSegment,
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"BlogID" => $this->owner->BlogID
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));
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if($this->owner->ID) $duplicate = $duplicate->exclude("ID", $this->owner->ID);
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if($duplicate->count() > 0) {
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$increment = is_int($increment) ? $increment + 1 : 0;
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$this->owner->generateURLSegment((int) $increment);
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}
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return $this->owner->URLSegment;
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}
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} |