silverstripe-blog/extensions/BlogPostFilter.php

43 lines
1.3 KiB
PHP
Executable File

<?php
/**
* This is responsible for filtering only published posts to users who do not have
* permission to view non-published posts.
*
* @package silverstripe
* @subpackage blog
*
* @author Michael Strong <github@michaelstrong.co.uk>
**/
class BlogPostFilter extends DataExtension {
/**
* Augment queries so that we don't fetch unpublished articles.
**/
public function augmentSQL(SQLQuery &$query) {
if(!Permission::check("VIEW_DRAFT_CONTENT")) {
$stage = Versioned::current_stage();
if($stage == "Stage") $stage = "";
else $stage = "_" . Convert::raw2sql($stage);
$query->addWhere("PublishDate < '" . Convert::raw2sql(SS_Datetime::now()) . "'");
}
}
/**
* This is a fix so that when we try to fetch subclasses of BlogPost,
* lazy loading includes the BlogPost table in its query. Leaving this table out
* means the default sort order column PublishDate causes an error.
*
* @see https://github.com/silverstripe/silverstripe-framework/issues/1682
**/
public function augmentLoadLazyFields(SQLQuery &$query, &$dataQuery, $parent) {
// Ensures that we're joining the BlogPost table which holds required db fields.
$dataQuery->innerJoin("BlogPost", "`SiteTree`.`ID` = `BlogPost`.`ID`");
}
}