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https://github.com/silverstripe/silverstripe-reports
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49 lines
1.4 KiB
PHP
49 lines
1.4 KiB
PHP
<?php
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class SiteTreeFolderExtension extends DataExtension {
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/**
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* Looks for files used in system and create where clause which contains all ID's of files.
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*
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* @returns String where clause which will work as filter.
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*/
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public function getUnusedFilesListFilter() {
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$result = DB::query("SELECT DISTINCT \"FileID\" FROM \"SiteTree_ImageTracking\"");
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$usedFiles = array();
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$where = '';
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$classes = ClassInfo::subclassesFor('SiteTree');
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if($result->numRecords() > 0) {
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while($nextResult = $result->next()) {
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$where .= $nextResult['FileID'] . ',';
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}
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}
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foreach($classes as $className) {
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$query = new DataQuery($className);
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$ids = $query->execute()->column();
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if(!count($ids)) continue;
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foreach(singleton($className)->has_one() as $relName => $joinClass) {
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if($joinClass == 'Image' || $joinClass == 'File') {
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$fieldName = $relName .'ID';
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$query = DataList::create($className)->where("$fieldName > 0");
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$query->distinct = true;
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$query->select(array($fieldName));
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$usedFiles = array_merge($usedFiles, $query->execute()->column());
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} elseif($joinClass == 'Folder') {
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// @todo
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}
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}
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}
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if($usedFiles) {
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return "\"File\".\"ID\" NOT IN (" . implode(', ', $usedFiles) . ") AND (\"ClassName\" = 'File' OR \"ClassName\" = 'Image')";
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} else {
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return "(\"ClassName\" = 'File' OR \"ClassName\" = 'Image')";
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}
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return $where;
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}
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}
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