mirror of
https://github.com/silverstripe/silverstripe-framework
synced 2024-10-22 14:05:37 +02:00
8e62d36c5f
git-svn-id: svn://svn.silverstripe.com/silverstripe/open/modules/sapphire/trunk@76223 467b73ca-7a2a-4603-9d3b-597d59a354a9
849 lines
29 KiB
PHP
Executable File
849 lines
29 KiB
PHP
Executable File
<?php
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/**
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* The Versioned decorator allows your DataObjects to have several versions, allowing
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* you to rollback changes and view history. An example of this is the pages used in the CMS.
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* @package sapphire
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* @subpackage model
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*/
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class Versioned extends DataObjectDecorator {
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/**
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* An array of possible stages.
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* @var array
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*/
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protected $stages;
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/**
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* The 'default' stage.
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* @var string
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*/
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protected $defaultStage;
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/**
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* The 'live' stage.
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* @var string
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*/
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protected $liveStage;
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/**
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* A version that a DataObject should be when it is 'migrating',
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* that is, when it is in the process of moving from one stage to another.
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* @var string
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*/
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public $migratingVersion;
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/**
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* A cache used by get_versionnumber_by_stage().
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* Clear through {@link flushCache()}.
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*
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* @var array
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*/
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protected static $cache_versionnumber;
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/**
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* Construct a new Versioned object.
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* @var array $stages The different stages the versioned object can be.
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* The first stage is consiedered the 'default' stage, the last stage is
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* considered the 'live' stage.
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*/
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function __construct($stages) {
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parent::__construct();
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if(!is_array($stages)) {
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$stages = func_get_args();
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}
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$this->stages = $stages;
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$this->defaultStage = reset($stages);
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$this->liveStage = array_pop($stages);
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}
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function extraStatics() {
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return array(
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'has_many' => array(
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'Versions' => 'SiteTree',
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)
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);
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}
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function augmentSQL(SQLQuery &$query) {
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// Get the content at a specific date
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if($date = Versioned::$reading_archived_date) {
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foreach($query->from as $table => $dummy) {
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if(!isset($baseTable)) {
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$baseTable = $table;
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}
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$query->renameTable($table, $table . '_versions');
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$query->replaceText(".\"ID\"", ".\"RecordID\"");
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$query->select[] = "\"{$baseTable}_versions\".\"RecordID\" AS \"ID\"";
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if($table != $baseTable) {
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$query->from[$table] .= " AND \"{$table}_versions\".\"Version\" = \"{$baseTable}_versions\".\"Version\"";
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}
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}
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// Link to the version archived on that date
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$this->requireArchiveTempTable($baseTable, $date);
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$query->from["_Archive$baseTable"] = "INNER JOIN \"_Archive$baseTable\"
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ON \"_Archive$baseTable\".\"RecordID\" = \"{$baseTable}_versions\".\"RecordID\"
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AND \"_Archive$baseTable\".\"Version\" = \"{$baseTable}_versions\".\"Version\"";
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// Get a specific stage
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} else if(Versioned::$reading_stage && Versioned::$reading_stage != $this->defaultStage
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&& array_search(Versioned::$reading_stage,$this->stages) !== false) {
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foreach($query->from as $table => $dummy) {
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$query->renameTable($table, $table . '_' . Versioned::$reading_stage);
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}
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}
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}
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/**
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* Create a temporary table mapping each database record to its version on the given date.
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* This is used by the versioning system to return database content on that date.
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* @param string $baseTable The base table.
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* @param string $date The date. If omitted, then the latest version of each page will be returned.
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* @todo Ensure that this is DB abstracted
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*/
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protected static function requireArchiveTempTable($baseTable, $date = null) {
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DB::query("CREATE TEMPORARY TABLE IF NOT EXISTS \"_Archive$baseTable\" (
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\"RecordID\" INT NOT NULL PRIMARY KEY,
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\"Version\" INT NOT NULL
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)");
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if(!DB::query("SELECT COUNT(*) FROM \"_Archive$baseTable\"")->value()) {
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if($date) $dateClause = "WHERE \"LastEdited\" <= '$date'";
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else $dateClause = "";
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DB::query("INSERT INTO \"_Archive$baseTable\"
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SELECT \"RecordID\", max(\"Version\") FROM \"{$baseTable}_versions\"
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$dateClause
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GROUP BY \"RecordID\"");
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}
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}
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/**
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* An array of DataObject extensions that may require versioning for extra tables
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* The array value is a set of suffixes to form these table names, assuming a preceding '_'.
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* E.g. if Extension1 creates a new table 'Class_suffix1'
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* and Extension2 the tables 'Class_suffix2' and 'Class_suffix3':
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*
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* $versionableExtensions = array(
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* 'Extension1' => 'suffix1',
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* 'Extension2' => array('suffix2', 'suffix3'),
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* );
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*
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* Make sure your extension has a static $enabled-property that determines if it is
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* processed by Versioned.
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*
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* @var array
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*/
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protected static $versionableExtensions = array('Translatable' => 'lang');
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function augmentDatabase() {
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$classTable = $this->owner->class;
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// Build a list of suffixes whose tables need versioning
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$allSuffixes = array();
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foreach (Versioned::$versionableExtensions as $versionableExtension => $suffixes) {
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if ($this->owner->hasExtension($versionableExtension) && singleton($versionableExtension)->stat('enabled')) {
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$allSuffixes = array_merge($allSuffixes, (array)$suffixes);
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foreach ((array)$suffixes as $suffix) {
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$allSuffixes[$suffix] = $versionableExtension;
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}
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}
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}
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// Add the default table with an empty suffix to the list (table name = class name)
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array_push($allSuffixes,'');
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foreach ($allSuffixes as $key => $suffix) {
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// check that this is a valid suffix
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if (!is_int($key)) continue;
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if ($suffix) $table = "{$classTable}_$suffix";
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else $table = $classTable;
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if(($fields = $this->owner->databaseFields())) {
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$indexes = $this->owner->databaseIndexes();
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if($this->owner->parentClass() == "DataObject") {
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$rootTable = true;
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}
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if ($suffix && ($ext = $this->owner->extInstance($allSuffixes[$suffix]))) {
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if (!$ext->isVersionedTable($table)) continue;
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$fields = $ext->fieldsInExtraTables($suffix);
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$indexes = $fields['indexes'];
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$fields = $fields['db'];
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}
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// Create tables for other stages
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foreach($this->stages as $stage) {
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// Extra tables for _Live, etc.
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if($stage != $this->defaultStage) {
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DB::requireTable("{$table}_$stage", $fields, $indexes, false);
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/*
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if(!DB::query("SELECT * FROM {$table}_$stage")->value()) {
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$fieldList = implode(", ",array_keys($fields));
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DB::query("INSERT INTO \"{$table}_$stage\" (ID,$fieldList)
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SELECT ID,$fieldList FROM \"$table\"");
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}
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*/
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}
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// Version fields on each root table (including Stage)
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if(isset($rootTable)) {
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$stageTable = ($stage == $this->defaultStage) ? $table : "{$table}_$stage";
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$parts=Array('datatype'=>'int', 'precision'=>11, 'null'=>'not null', 'default'=>(int)0);
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$values=Array('type'=>'int', 'parts'=>$parts);
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DB::requireField($stageTable, 'Version', $values);
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}
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}
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// Create table for all versions
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$versionFields = array_merge(
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array(
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"RecordID" => "Int",
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"Version" => "Int",
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"WasPublished" => "Boolean",
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"AuthorID" => "Int",
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"PublisherID" => "Int"
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),
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(array)$fields
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);
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$versionIndexes = array_merge(
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array(
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'RecordID_Version' => '(RecordID, Version)',
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'RecordID' => true,
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'Version' => true,
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'AuthorID' => true,
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'PublisherID' => true,
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),
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(array)$indexes
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);
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DB::requireTable("{$table}_versions", $versionFields, $versionIndexes);
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/*
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if(!DB::query("SELECT * FROM {$table}_versions")->value()) {
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$fieldList = implode(", ",array_keys($fields));
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DB::query("INSERT INTO \"{$table}_versions\" ($fieldList, RecordID, Version)
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SELECT $fieldList, ID AS RecordID, 1 AS Version FROM \"$table\"");
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}
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*/
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} else {
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DB::dontRequireTable("{$table}_versions");
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foreach($this->stages as $stage) {
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if($stage != $this->defaultStage) DB::dontrequireTable("{$table}_$stage");
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}
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}
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}
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}
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/**
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* Augment a write-record request.
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* @param SQLQuery $manipulation Query to augment.
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*/
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function augmentWrite(&$manipulation) {
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$tables = array_keys($manipulation);
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$version_table = array();
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foreach($tables as $table) {
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// Make sure that the augmented write is being applied to a table that can be versioned
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if( !$this->canBeVersioned($table) ) {
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// Debug::message( "$table doesn't exist or has no database fields" );
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unset($manipulation[$table]);
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continue;
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}
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$id = $manipulation[$table]['id'] ? $manipulation[$table]['id'] : $manipulation[$table]['fields']['ID'];//echo 'id' .$id.' from '.$manipulation[$table]['id'].' and '.$manipulation[$table]['fields']['ID']."\n\n<br><br>";
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if(!$id) user_error("Couldn't find ID in " . var_export($manipulation[$table], true), E_USER_ERROR);
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$rid = isset($manipulation[$table]['RecordID']) ? $manipulation[$table]['RecordID'] : $id;
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$newManipulation = array(
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"command" => "insert",
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"fields" => isset($manipulation[$table]['fields']) ? $manipulation[$table]['fields'] : null
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);
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if($this->migratingVersion) {
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$manipulation[$table]['fields']['Version'] = $this->migratingVersion;
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}
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// If we haven't got a version #, then we're creating a new version. Otherwise, we're just
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// copying a version to another table
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if(!isset($manipulation[$table]['fields']['Version'])) {
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// Add any extra, unchanged fields to the version record.
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$data = DB::query("SELECT * FROM \"$table\" WHERE \"ID\" = $id")->record();
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if($data) foreach($data as $k => $v) {
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if (!isset($newManipulation['fields'][$k])) $newManipulation['fields'][$k] = "'" . DB::getConn()->addslashes($v) . "'";
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}
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// Set up a new entry in (table)_versions
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$newManipulation['fields']['RecordID'] = $rid;
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unset($newManipulation['fields']['ID']);
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// Create a new version #
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if (isset($version_table[$table])) $nextVersion = $version_table[$table];
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else unset($nextVersion);
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if($rid && !isset($nextVersion)) $nextVersion = DB::query("SELECT MAX(\"Version\") + 1 FROM \"{$table}_versions\" WHERE \"RecordID\" = $rid")->value();
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$newManipulation['fields']['Version'] = $nextVersion ? $nextVersion : 1;
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$newManipulation['fields']['AuthorID'] = Member::currentUserID() ? Member::currentUserID() : 0;
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$manipulation["{$table}_versions"] = $newManipulation;
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// Add the version number to this data
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$manipulation[$table]['fields']['Version'] = $newManipulation['fields']['Version'];
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$version_table[$table] = $nextVersion;
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}
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// Putting a Version of -1 is a signal to leave the version table alone, despite their being no version
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if($manipulation[$table]['fields']['Version'] < 0) unset($manipulation[$table]['fields']['Version']);
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if(!$this->hasVersionField($table)) unset($manipulation[$table]['fields']['Version']);
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// Grab a version number - it should be the same across all tables.
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if(isset($manipulation[$table]['fields']['Version'])) $thisVersion = $manipulation[$table]['fields']['Version'];
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// If we're editing Live, then use (table)_Live instead of (table)
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if(Versioned::$reading_stage && Versioned::$reading_stage != $this->defaultStage) {
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$newTable = $table . '_' . Versioned::$reading_stage;
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$manipulation[$newTable] = $manipulation[$table];
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unset($manipulation[$table]);
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}
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}
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// Add the new version # back into the data object, for accessing after this write
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if(isset($thisVersion)) $this->owner->Version = str_replace("'","",$thisVersion);
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}
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/**
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* Determine if a table is supporting the Versioned extensions (e.g. $table_versions does exists)
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*
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* @param string $table Table name
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* @return boolean
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*/
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function canBeVersioned($table) {
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$dbFields = singleton($table)->databaseFields();
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return !(!ClassInfo::exists($table) || !is_subclass_of($table, 'DataObject' ) || empty( $dbFields ));
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}
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/**
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* Check if a certain table has the 'Version' field
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*
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* @param string $table Table name
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* @return boolean Returns false if the field isn't in the table, true otherwise
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*/
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function hasVersionField($table) {
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$tableParts = explode('_',$table);
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return ('DataObject' == get_parent_class($tableParts[0]));
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}
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function extendWithSuffix($table) {
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foreach (Versioned::$versionableExtensions as $versionableExtension => $suffixes) {
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if ($this->owner->hasExtension($versionableExtension)) {
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$table = $this->owner->extInstance($versionableExtension)->extendWithSuffix($table);
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}
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}
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return $table;
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}
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//-----------------------------------------------------------------------------------------------//
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/**
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* Get the latest published DataObject.
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* @return DataObject
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*/
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function latestPublished() {
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// Get the root data object class - this will have the version field
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$table1 = $this->owner->class;
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while( ($p = get_parent_class($table1)) != "DataObject") $table1 = $p;
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$table2 = $table1 . "_$this->liveStage";
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return DB::query("SELECT \"$table1\".\"Version\" = \"$table2\".\"Version\" FROM \"$table1\" INNER JOIN \"$table2\" ON \"$table1\".\"ID\" = \"$table2\".\"ID\" WHERE \"$table1\".\"ID\" = ". $this->owner->ID)->value();
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}
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/**
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* Move a database record from one stage to the other.
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* @param fromStage Place to copy from. Can be either a stage name or a version number.
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* @param toStage Place to copy to. Must be a stage name.
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* @param createNewVersion Set this to true to create a new version number. By default, the existing version number will be copied over.
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*/
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function publish($fromStage, $toStage, $createNewVersion = false) {
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$baseClass = $this->owner->class;
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while( ($p = get_parent_class($baseClass)) != "DataObject") $baseClass = $p;
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$extTable = $this->extendWithSuffix($baseClass);//die($extTable);
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if(is_numeric($fromStage)) {
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$from = Versioned::get_version($this->owner->class, $this->owner->ID, $fromStage);
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} else {
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$this->owner->flushCache();
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$from = Versioned::get_one_by_stage($this->owner->class, $fromStage, "\"{$baseClass}\".\"ID\" = {$this->owner->ID}");
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}
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$publisherID = isset(Member::currentUser()->ID) ? Member::currentUser()->ID : 0;
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if($from) {
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$from->forceChange();
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if(!$createNewVersion) $from->migrateVersion($from->Version);
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// Mark this version as having been published at some stage
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DB::query("UPDATE \"{$extTable}_versions\" SET \"WasPublished\" = '1', \"PublisherID\" = $publisherID WHERE \"RecordID\" = $from->ID AND \"Version\" = $from->Version");
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$oldStage = Versioned::$reading_stage;
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Versioned::$reading_stage = $toStage;
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$from->write();
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$from->destroy();
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Versioned::$reading_stage = $oldStage;
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} else {
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user_error("Can't find {$this->owner->URLSegment}/{$this->owner->ID} in stage $fromStage", E_USER_WARNING);
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}
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}
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/**
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* Set the migrating version.
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* @param string $version The version.
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*/
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function migrateVersion($version) {
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$this->migratingVersion = $version;
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}
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/**
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* Compare two stages to see if they're different.
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* Only checks the version numbers, not the actual content.
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* @param string $stage1 The first stage to check.
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* @param string $stage2
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*/
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function stagesDiffer($stage1, $stage2) {
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$table1 = $this->baseTable($stage1);
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$table2 = $this->baseTable($stage2);
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if(!is_numeric($this->owner->ID)) {
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return true;
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}
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// We test for equality - if one of the versions doesn't exist, this will be false
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//TODO: DB Abstraction: if statement here:
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$stagesAreEqual = DB::query("SELECT CASE WHEN \"$table1\".\"Version\"=\"$table2\".\"Version\" THEN 1 ELSE 0 END FROM \"$table1\" INNER JOIN \"$table2\" ON \"$table1\".\"ID\" = \"$table2\".\"ID\" AND \"$table1\".\"ID\" = {$this->owner->ID}")->value();
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return !$stagesAreEqual;
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}
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function Versions($filter = "") {
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return $this->allVersions($filter);
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}
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/**
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* Return a list of all the versions available.
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* @param string $filter
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*/
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function allVersions($filter = "") {
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$query = $this->owner->extendedSQL($filter,"");
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foreach($query->from as $table => $join) {
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if($join[0] == '"') $baseTable = str_replace('"','',$join);
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else if (substr($join,0,5) != 'INNER') $query->from[$table] = "LEFT JOIN \"$table\" ON \"$table\".\"RecordID\" = \"{$baseTable}_versions\".\"RecordID\" AND \"$table\".\"Version\" = \"{$baseTable}_versions\".\"Version\"";
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$query->renameTable($table, $table . '_versions');
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}
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$query->select[] = "\"{$baseTable}_versions\".\"AuthorID\", \"{$baseTable}_versions\".\"Version\", \"{$baseTable}_versions\".\"RecordID\"";
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$query->where[] = "\"{$baseTable}_versions\".\"RecordID\" = '{$this->owner->ID}'";
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$query->orderby = "\"{$baseTable}_versions\".\"LastEdited\" DESC, \"{$baseTable}_versions\".\"Version\" DESC";
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$records = $query->execute();
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$versions = new DataObjectSet();
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foreach($records as $record) {
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$versions->push(new Versioned_Version($record));
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}
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return $versions;
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}
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/**
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* Compare two version, and return the diff between them.
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* @param string $from The version to compare from.
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* @param string $to The version to compare to.
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* @return DataObject
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*/
|
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function compareVersions($from, $to) {
|
|
$fromRecord = Versioned::get_version($this->owner->class, $this->owner->ID, $from);
|
|
$toRecord = Versioned::get_version($this->owner->class, $this->owner->ID, $to);
|
|
|
|
|
|
$fields = array_keys($fromRecord->getAllFields());
|
|
|
|
foreach($fields as $field) {
|
|
if(in_array($field, array("ID","Version","RecordID","AuthorID", "ParentID"))) continue;
|
|
|
|
$fromRecord->$field = Diff::compareHTML($fromRecord->$field, $toRecord->$field);
|
|
}
|
|
|
|
return $fromRecord;
|
|
}
|
|
|
|
/**
|
|
* Return the base table - the class that directly extends DataObject.
|
|
* @return string
|
|
*/
|
|
function baseTable($stage = null) {
|
|
$tableClasses = ClassInfo::dataClassesFor($this->owner->class);
|
|
$baseClass = array_shift($tableClasses);
|
|
return (!$stage || $stage == $this->defaultStage) ? $baseClass : $baseClass . "_$stage";
|
|
}
|
|
|
|
//-----------------------------------------------------------------------------------------------//
|
|
|
|
/**
|
|
* Choose the stage the site is currently on.
|
|
* If $_GET['stage'] is set, then it will use that stage, and store it in the session.
|
|
* if $_GET['archiveDate'] is set, it will use that date, and store it in the session.
|
|
* If neither of these are set, it checks the session, otherwise the stage is set to 'Live'.
|
|
*/
|
|
static function choose_site_stage() {
|
|
if(isset($_GET['stage'])) {
|
|
$_GET['stage'] = ucfirst(strtolower($_GET['stage']));
|
|
Session::set('currentStage', $_GET['stage']);
|
|
Session::clear('archiveDate');
|
|
}
|
|
if(isset($_GET['archiveDate'])) {
|
|
Session::set('archiveDate', $_GET['archiveDate']);
|
|
}
|
|
|
|
if(Session::get('archiveDate')) {
|
|
Versioned::reading_archived_date(Session::get('archiveDate'));
|
|
} else if(Session::get('currentStage')) {
|
|
Versioned::reading_stage(Session::get('currentStage'));
|
|
} else {
|
|
Versioned::reading_stage("Live");
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Get the name of the 'live' stage.
|
|
* @return string
|
|
*/
|
|
static function get_live_stage() {
|
|
return "Live";
|
|
}
|
|
|
|
/**
|
|
* Get the current reading stage.
|
|
* @return string
|
|
*/
|
|
static function current_stage() {
|
|
return Versioned::$reading_stage;
|
|
}
|
|
|
|
/**
|
|
* Get the current archive date.
|
|
* @return string
|
|
*/
|
|
static function current_archived_date() {
|
|
return Versioned::$reading_archived_date;
|
|
}
|
|
|
|
/**
|
|
* Set the reading stage.
|
|
* @param string $stage New reading stage.
|
|
*/
|
|
static function reading_stage($stage) {
|
|
Versioned::$reading_stage = $stage;
|
|
}
|
|
|
|
/**
|
|
* Set the reading archive date.
|
|
* @param string $date New reading archived date.
|
|
*/
|
|
static function reading_archived_date($date) {
|
|
Versioned::$reading_archived_date = $date;
|
|
}
|
|
|
|
/**
|
|
* Get a singleton instance of a class in the given stage.
|
|
*
|
|
* @param string $class The name of the class.
|
|
* @param string $stage The name of the stage.
|
|
* @param string $filter A filter to be inserted into the WHERE clause.
|
|
* @param boolean $cache Use caching.
|
|
* @param string $orderby A sort expression to be inserted into the ORDER BY clause.
|
|
* @return DataObject
|
|
*/
|
|
static function get_one_by_stage($class, $stage, $filter = '', $cache = true, $orderby = '') {
|
|
$oldStage = Versioned::$reading_stage;
|
|
Versioned::$reading_stage = $stage;
|
|
singleton($class)->flushCache();
|
|
$result = DataObject::get_one($class, $filter, $cache, $orderby);
|
|
singleton($class)->flushCache();
|
|
|
|
Versioned::$reading_stage = $oldStage;
|
|
return $result;
|
|
}
|
|
|
|
/**
|
|
* Gets the current version number of a specific record.
|
|
*
|
|
* @param string $class
|
|
* @param string $stage
|
|
* @param int $id
|
|
* @param boolean $cache
|
|
* @return int
|
|
*/
|
|
static function get_versionnumber_by_stage($class, $stage, $id, $cache = true) {
|
|
$baseClass = ClassInfo::baseDataClass($class);
|
|
$stageTable = ($stage == 'Stage') ? $baseClass : "{$baseClass}_{$stage}";
|
|
|
|
// cached call
|
|
if($cache && isset(self::$cache_versionnumber[$baseClass][$stage][$id])) {
|
|
return self::$cache_versionnumber[$baseClass][$stage][$id];
|
|
}
|
|
|
|
// get version as performance-optimized SQL query (gets called for each page in the sitetree)
|
|
$version = DB::query("SELECT \"Version\" FROM \"$stageTable\" WHERE \"ID\" = $id")->value();
|
|
|
|
// cache value (if required)
|
|
if($cache) {
|
|
if(!isset(self::$cache_versionnumber[$baseClass])) self::$cache_versionnumber[$baseClass] = array();
|
|
if(!isset(self::$cache_versionnumber[$baseClass][$stage])) self::$cache_versionnumber[$baseClass][$stage] = array();
|
|
self::$cache_versionnumber[$baseClass][$stage][$id] = $version;
|
|
}
|
|
|
|
return $version;
|
|
}
|
|
|
|
/**
|
|
* Pre-populate the cache for Versioned::get_versionnumber_by_stage() for a list of record IDs,
|
|
* for more efficient database querying. If $idList is null, then every page will be pre-cached.
|
|
*/
|
|
static function prepopulate_versionnumber_cache($class, $stage, $idList = null) {
|
|
$filter = "";
|
|
if($idList) {
|
|
// Validate the ID list
|
|
foreach($idList as $id) if(!is_numeric($id)) user_error("Bad ID passed to Versioned::prepopulate_versionnumber_cache() in \$idList: " . $id, E_USER_ERROR);
|
|
$filter = "WHERE \"ID\" IN(" .implode(", ", $idList) . ")";
|
|
}
|
|
|
|
$baseClass = ClassInfo::baseDataClass($class);
|
|
$stageTable = ($stage == 'Stage') ? $baseClass : "{$baseClass}_{$stage}";
|
|
|
|
$versions = DB::query("SELECT \"ID\", \"Version\" FROM \"$stageTable\" $filter")->map();
|
|
foreach($versions as $id => $version) {
|
|
self::$cache_versionnumber[$baseClass][$stage][$id] = $version;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Get a set of class instances by the given stage.
|
|
*
|
|
* @param string $class The name of the class.
|
|
* @param string $stage The name of the stage.
|
|
* @param string $filter A filter to be inserted into the WHERE clause.
|
|
* @param string $sort A sort expression to be inserted into the ORDER BY clause.
|
|
* @param string $join A join expression, such as LEFT JOIN or INNER JOIN
|
|
* @param int $limit A limit on the number of records returned from the database.
|
|
* @param string $containerClass The container class for the result set (default is DataObjectSet)
|
|
* @return DataObjectSet
|
|
*/
|
|
static function get_by_stage($class, $stage, $filter = '', $sort = '', $join = '', $limit = '', $containerClass = 'DataObjectSet') {
|
|
$oldStage = Versioned::$reading_stage;
|
|
Versioned::$reading_stage = $stage;
|
|
$result = DataObject::get($class, $filter, $sort, $join, $limit, $containerClass);
|
|
Versioned::$reading_stage = $oldStage;
|
|
return $result;
|
|
}
|
|
|
|
function deleteFromStage($stage) {
|
|
$oldStage = Versioned::$reading_stage;
|
|
Versioned::$reading_stage = $stage;
|
|
$result = $this->owner->delete();
|
|
Versioned::$reading_stage = $oldStage;
|
|
return $result;
|
|
}
|
|
|
|
function writeToStage($stage, $forceInsert = false) {
|
|
$oldStage = Versioned::$reading_stage;
|
|
Versioned::$reading_stage = $stage;
|
|
$result = $this->owner->write(false, $forceInsert);
|
|
Versioned::$reading_stage = $oldStage;
|
|
return $result;
|
|
}
|
|
|
|
/**
|
|
* Build a SQL query to get data from the _version table.
|
|
* This function is similar in style to {@link DataObject::buildSQL}
|
|
*/
|
|
function buildVersionSQL($filter = "", $sort = "") {
|
|
$query = $this->owner->extendedSQL($filter,$sort);
|
|
foreach($query->from as $table => $join) {
|
|
if($join[0] == '"') $baseTable = str_replace('"','',$join);
|
|
else $query->from[$table] = "LEFT JOIN \"$table\" ON \"$table\".\"RecordID\" = \"{$baseTable}_versions\".\"RecordID\" AND \"$table\".\"Version\" = \"{$baseTable}_versions\".\"Version\"";
|
|
$query->renameTable($table, $table . '_versions');
|
|
}
|
|
$query->select[] = "\"{$baseTable}_versions\".\"AuthorID\", \"{$baseTable}_versions\".\"Version\", \"{$baseTable}_versions\".\"RecordID\" AS \"ID\"";
|
|
return $query;
|
|
}
|
|
|
|
static function build_version_sql($className, $filter = "", $sort = "") {
|
|
$query = singleton($className)->extendedSQL($filter,$sort);
|
|
foreach($query->from as $table => $join) {
|
|
if($join[0] == '"') $baseTable = str_replace('"','',$join);
|
|
else $query->from[$table] = "LEFT JOIN \"$table\" ON \"$table\".\"RecordID\" = \"{$baseTable}_versions\".\"RecordID\" AND \"$table\".\"Version\" = \"{$baseTable}_versions\".\"Version\"";
|
|
$query->renameTable($table, $table . '_versions');
|
|
}
|
|
$query->select[] = "\"{$baseTable}_versions\".\"AuthorID\", \"{$baseTable}_versions\".\"Version\", \"{$baseTable}_versions\".\"RecordID\" AS \"ID\"";
|
|
return $query;
|
|
}
|
|
|
|
/**
|
|
* Return the latest version of the given page.
|
|
*
|
|
* @return DataObject
|
|
*/
|
|
static function get_latest_version($class, $id) {
|
|
$oldStage = Versioned::$reading_stage;
|
|
Versioned::$reading_stage = null;
|
|
|
|
$baseTable = ClassInfo::baseDataClass($class);
|
|
$query = singleton($class)->buildVersionSQL("\"{$baseTable}\".\"RecordID\" = $id", "\"{$baseTable}\".\"Version\" DESC");
|
|
$query->limit = 1;
|
|
$record = $query->execute()->record();
|
|
$className = $record['ClassName'];
|
|
if(!$className) {
|
|
Debug::show($query->sql());
|
|
Debug::show($record);
|
|
user_error("Versioned::get_version: Couldn't get $class.$id", E_USER_ERROR);
|
|
}
|
|
|
|
Versioned::$reading_stage = $oldStage;
|
|
|
|
return new $className($record);
|
|
}
|
|
|
|
/**
|
|
* Return the equivalent of a DataObject::get() call, querying the latest
|
|
* version of each page stored in the (class)_versions tables.
|
|
*
|
|
* In particular, this will query deleted records as well as active ones.
|
|
*/
|
|
static function get_including_deleted($class, $filter = "", $sort = "") {
|
|
$oldStage = Versioned::$reading_stage;
|
|
Versioned::$reading_stage = null;
|
|
|
|
$SNG = singleton($class);
|
|
|
|
// Build query
|
|
$query = $SNG->buildVersionSQL($filter, $sort);
|
|
$baseTable = ClassInfo::baseDataClass($class);
|
|
self::requireArchiveTempTable($baseTable);
|
|
$query->from["_Archive$baseTable"] = "INNER JOIN `_Archive$baseTable`
|
|
ON `_Archive$baseTable`.RecordID = `{$baseTable}_versions`.RecordID
|
|
AND `_Archive$baseTable`.Version = `{$baseTable}_versions`.Version";
|
|
|
|
// Process into a DataObjectSet
|
|
$result = $SNG->buildDataObjectSet($query->execute());
|
|
|
|
Versioned::$reading_stage = $oldStage;
|
|
return $result;
|
|
}
|
|
|
|
/**
|
|
* @return DataObject
|
|
*/
|
|
static function get_version($class, $id, $version) {
|
|
$oldStage = Versioned::$reading_stage;
|
|
Versioned::$reading_stage = null;
|
|
|
|
$baseTable = ClassInfo::baseDataClass($class);
|
|
$query = singleton($class)->buildVersionSQL("\"{$baseTable}\".\"RecordID\" = $id AND \"{$baseTable}\".\"Version\" = $version");
|
|
$record = $query->execute()->record();
|
|
$className = $record['ClassName'];
|
|
if(!$className) {
|
|
Debug::show($query->sql());
|
|
Debug::show($record);
|
|
user_error("Versioned::get_version: Couldn't get $class.$id, version $version", E_USER_ERROR);
|
|
}
|
|
|
|
Versioned::$reading_stage = $oldStage;
|
|
|
|
return new $className($record);
|
|
}
|
|
|
|
/**
|
|
* @return DataObject
|
|
*/
|
|
static function get_all_versions($class, $id, $version) {
|
|
$baseTable = ClassInfo::baseDataClass($class);
|
|
$query = singleton($class)->buildVersionSQL("\"{$baseTable}\".\"RecordID\" = $id AND \"{$baseTable}\".\"Version\" = $version");
|
|
$record = $query->execute()->record();
|
|
$className = $record['ClassName'];
|
|
if(!$className) {
|
|
Debug::show($query->sql());
|
|
Debug::show($record);
|
|
user_error("Versioned::get_version: Couldn't get $class.$id, version $version", E_USER_ERROR);
|
|
}
|
|
return new $className($record);
|
|
}
|
|
|
|
function contentcontrollerInit($controller) {
|
|
self::choose_site_stage();
|
|
}
|
|
function modelascontrollerInit($controller) {
|
|
self::choose_site_stage();
|
|
}
|
|
|
|
protected static $reading_stage = null;
|
|
protected static $reading_archived_date = null;
|
|
|
|
function updateFieldLabels(&$labels) {
|
|
$labels['Versions'] = _t('Versioned.has_many_Versions', 'Versions', PR_MEDIUM, 'Past Versions of this page');
|
|
}
|
|
|
|
function flushCache() {
|
|
self::$cache_versionnumber = array();
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Represents a single version of a record.
|
|
* @package sapphire
|
|
* @subpackage model
|
|
* @see Versioned
|
|
*/
|
|
class Versioned_Version extends ViewableData {
|
|
protected $record;
|
|
protected $object;
|
|
|
|
function __construct($record) {
|
|
$this->record = $record;
|
|
$record['ID'] = $record['RecordID'];
|
|
$className = $record['ClassName'];
|
|
|
|
$this->object = new $className($record);
|
|
$this->failover = $this->object;
|
|
|
|
parent::__construct();
|
|
}
|
|
|
|
function PublishedClass() {
|
|
return $this->record['WasPublished'] ? 'published' : 'internal';
|
|
}
|
|
|
|
function Author() {
|
|
return DataObject::get_by_id("Member", $this->record['AuthorID']);
|
|
}
|
|
|
|
function Publisher() {
|
|
if( !$this->record['WasPublished'] )
|
|
return null;
|
|
|
|
return DataObject::get_by_id("Member", $this->record['PublisherID']);
|
|
}
|
|
|
|
function Published() {
|
|
return !empty( $this->record['WasPublished'] );
|
|
}
|
|
}
|
|
|
|
?>
|