mirror of
https://github.com/silverstripe/silverstripe-framework
synced 2024-10-22 14:05:37 +02:00
117 lines
3.0 KiB
PHP
117 lines
3.0 KiB
PHP
<?php
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use SilverStripe\Filesystem\Storage\AssetStore;
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use SilverStripe\ORM\DB;
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use SilverStripe\ORM\Versioning\Versioned;
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/**
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* Service to help migrate File dataobjects to the new APL.
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*
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* This service does not alter these records in such a way that prevents downgrading back to 3.x
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*
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* @package framework
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* @subpackage filesystem
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*/
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class FileMigrationHelper extends Object {
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/**
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* Perform migration
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*
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* @param string $base Absolute base path (parent of assets folder). Will default to BASE_PATH
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* @return int Number of files successfully migrated
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*/
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public function run($base = null) {
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if(empty($base)) {
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$base = BASE_PATH;
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}
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// Check if the File dataobject has a "Filename" field.
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// If not, cannot migrate
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if(!DB::get_schema()->hasField('File', 'Filename')) {
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return 0;
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}
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// Set max time and memory limit
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increase_time_limit_to();
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increase_memory_limit_to();
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// Loop over all files
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$count = 0;
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$originalState = Versioned::get_reading_mode();
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Versioned::set_stage(Versioned::DRAFT);
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$filenameMap = $this->getFilenameArray();
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foreach($this->getFileQuery() as $file) {
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// Get the name of the file to import
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$filename = $filenameMap[$file->ID];
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$success = $this->migrateFile($base, $file, $filename);
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if($success) {
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$count++;
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}
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}
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Versioned::set_reading_mode($originalState);
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return $count;
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}
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/**
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* Migrate a single file
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*
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* @param string $base Absolute base path (parent of assets folder)
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* @param File $file
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* @param string $legacyFilename
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* @return bool True if this file is imported successfully
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*/
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protected function migrateFile($base, File $file, $legacyFilename) {
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// Make sure this legacy file actually exists
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$path = $base . '/' . $legacyFilename;
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if(!file_exists($path)) {
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return false;
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}
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// Copy local file into this filesystem
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$filename = $file->generateFilename();
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$result = $file->setFromLocalFile(
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$path, $filename, null, null,
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array('conflict' => AssetStore::CONFLICT_OVERWRITE)
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);
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// Move file if the APL changes filename value
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if($result['Filename'] !== $filename) {
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$file->setFilename($result['Filename']);
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}
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// Save and publish
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$file->write();
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$file->copyVersionToStage(Versioned::DRAFT, Versioned::LIVE);
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return true;
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}
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/**
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* Get list of File dataobjects to import
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*
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* @return DataList
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*/
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protected function getFileQuery() {
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// Select all records which have a Filename value, but not FileFilename.
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return File::get()
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->exclude('ClassName', 'Folder')
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->filter('FileFilename', array('', null))
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->where('"File"."Filename" IS NOT NULL AND "File"."Filename" != \'\''); // Non-orm field
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}
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/**
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* Get map of File IDs to legacy filenames
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*
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* @return array
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*/
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protected function getFilenameArray() {
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// Convert original query, ensuring the legacy "Filename" is included in the result
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return $this
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->getFileQuery()
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->dataQuery()
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->selectFromTable('File', array('ID', 'Filename'))
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->execute()
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->map(); // map ID to Filename
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}
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}
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