77 lines
1.7 KiB
PHP
77 lines
1.7 KiB
PHP
<?php
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/**
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* Description of BlogMigrationTask
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*
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* @author dmooyman
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*/
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class BlogMigrationTask extends MigrationTask {
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/**
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* Should this task be invoked automatically via dev/build?
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*
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* @config
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* @var boolean
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*/
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private static $run_during_dev_build = true;
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protected function message($text) {
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if(Controller::curr() instanceof DatabaseAdmin) {
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DB::alteration_message($text, 'obsolete');
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} else {
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Debug::message($text);
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}
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}
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public function up() {
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$classes = ClassInfo::implementorsOf('MigratableObject');
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$this->message('Migrating legacy blog records');
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foreach($classes as $class) {
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// migrate objects in each stage
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if(is_subclass_of($class, 'SiteTree')) {
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foreach(array('Stage', 'Live') as $stage) {
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$oldMode = Versioned::get_reading_mode();
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Versioned::reading_stage($stage);
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$this->upClass($class, $stage);
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Versioned::set_reading_mode($oldMode);
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}
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} else {
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// Migrate object
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$this->upClass($class);
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}
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}
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}
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public function down() {
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$this->message('BlogMigrationTask::down() not implemented');
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}
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/**
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* Migrate records of a single class
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*
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* @param type $class
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* @param type $stage
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*/
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protected function upClass($class, $stage = null) {
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if(!class_exists($class)) return;
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// Migrate all records
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$items = $class::get();
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if($count = $items->count()) {
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$stageMessage = " in stage {$stage}";
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$this->message("Migrating {$count} legacy {$class} records{$stageMessage}.");
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foreach($items as $item) {
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// Cancel if onBeforeUp returns false
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$cancel = $item->extend('onBeforeUp');
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if($cancel && min($cancel) === false) continue;
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// Up
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$item->up();
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// Post extensions
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$item->extend('onAfterUp');
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}
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}
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}
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}
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