silverstripe-cms/tasks/MigrateSiteTreeLinkingTask.php

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<?php
/**
* Rewrites plain internal HTML links into shortcode form, using existing link tracking information.
*
* @package cms
* @subpackage tasks
*/
class MigrateSiteTreeLinkingTask extends BuildTask {
protected $title = 'Migrate SiteTree Linking Task';
protected $description = 'Rewrites plain internal HTML links into shortcode form, using existing link tracking information.';
public function run($request) {
$pages = 0;
$links = 0;
$linkedPages = new DataList('SiteTree');
$linkedPages->innerJoin('SiteTree_LinkTracking', '"SiteTree_LinkTracking"."SiteTreeID" = "SiteTree"."ID"');
if($linkedPages) foreach($linkedPages as $page) {
$tracking = DB::query(sprintf('SELECT "ChildID", "FieldName" FROM "SiteTree_LinkTracking" WHERE "SiteTreeID" = %d', $page->ID))->map();
foreach($tracking as $childID => $fieldName) {
$linked = DataObject::get_by_id('SiteTree', $childID);
// TOOD: Replace in all HTMLText fields
$page->Content = preg_replace (
"/href *= *([\"']?){$linked->URLSegment}\/?/i",
"href=$1[sitetree_link id={$linked->ID}]",
$page->Content,
-1,
$replaced
);
if($replaced) {
$links += $replaced;
}
}
$page->write();
$pages++;
}
echo "Rewrote $links link(s) on $pages page(s) to use shortcodes.\n";
}
}