mirror of
https://github.com/silverstripe/silverstripe-framework
synced 2024-10-22 14:05:37 +02:00
323 lines
9.1 KiB
PHP
323 lines
9.1 KiB
PHP
<?php
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// Include the DB class
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require_once("model/DB.php");
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/**
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* DatabaseAdmin class
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*
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* Utility functions for administrating the database. These can be accessed
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* via URL, e.g. http://www.yourdomain.com/db/build.
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*
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* @package framework
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* @subpackage model
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*/
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class DatabaseAdmin extends Controller {
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/// SECURITY ///
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private static $allowed_actions = array(
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'index',
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'build',
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'cleanup',
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'import'
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);
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public function init() {
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parent::init();
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// We allow access to this controller regardless of live-status or ADMIN permission only
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// if on CLI or with the database not ready. The latter makes it less errorprone to do an
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// initial schema build without requiring a default-admin login.
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// Access to this controller is always allowed in "dev-mode", or of the user is ADMIN.
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$isRunningTests = (class_exists('SapphireTest', false) && SapphireTest::is_running_test());
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$canAccess = (
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Director::isDev()
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|| !Security::database_is_ready()
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// We need to ensure that DevelopmentAdminTest can simulate permission failures when running
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// "dev/tests" from CLI.
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|| (Director::is_cli() && !$isRunningTests)
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|| Permission::check("ADMIN")
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);
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if(!$canAccess) {
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return Security::permissionFailure($this,
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"This page is secured and you need administrator rights to access it. " .
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"Enter your credentials below and we will send you right along.");
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}
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}
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/**
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* Get the data classes, grouped by their root class
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*
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* @return array Array of data classes, grouped by their root class
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*/
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public function groupedDataClasses() {
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// Get all root data objects
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$allClasses = get_declared_classes();
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foreach($allClasses as $class) {
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if(get_parent_class($class) == "DataObject")
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$rootClasses[$class] = array();
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}
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// Assign every other data object one of those
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foreach($allClasses as $class) {
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if(!isset($rootClasses[$class]) && is_subclass_of($class, "DataObject")) {
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foreach($rootClasses as $rootClass => $dummy) {
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if(is_subclass_of($class, $rootClass)) {
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$rootClasses[$rootClass][] = $class;
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break;
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}
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}
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}
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}
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return $rootClasses;
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}
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/**
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* When we're called as /dev/build, that's actually the index. Do the same
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* as /dev/build/build.
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*/
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public function index() {
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return $this->build();
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}
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/**
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* Updates the database schema, creating tables & fields as necessary.
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*/
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public function build() {
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// The default time limit of 30 seconds is normally not enough
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increase_time_limit_to(600);
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// Get all our classes
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SS_ClassLoader::instance()->getManifest()->regenerate();
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if(isset($_GET['returnURL'])) {
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echo "<p>Setting up the database; you will be returned to your site shortly....</p>";
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$this->doBuild(true);
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echo "<p>Done!</p>";
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$this->redirect($_GET['returnURL']);
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} else {
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$this->doBuild(isset($_REQUEST['quiet']) || isset($_REQUEST['from_installer']),
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!isset($_REQUEST['dont_populate']));
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}
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}
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/**
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* Check if database needs to be built, and build it if it does.
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*/
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public static function autoBuild() {
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$dataClasses = ClassInfo::subclassesFor('DataObject');
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$lastBuilt = self::lastBuilt();
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foreach($dataClasses as $class) {
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if(filemtime(getClassFile($class)) > $lastBuilt) {
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$da = new DatabaseAdmin();
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$da->doBuild(true);
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return;
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}
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}
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}
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/**
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* Build the default data, calling requireDefaultRecords on all
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* DataObject classes
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*/
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public function buildDefaults() {
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$dataClasses = ClassInfo::subclassesFor('DataObject');
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array_shift($dataClasses);
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foreach($dataClasses as $dataClass){
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singleton($dataClass)->requireDefaultRecords();
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print "Defaults loaded for $dataClass<br/>";
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}
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}
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/**
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* Returns the timestamp of the time that the database was last built
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*
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* @return string Returns the timestamp of the time that the database was
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* last built
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*/
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public static function lastBuilt() {
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$file = TEMP_FOLDER . '/database-last-generated-' .
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str_replace(array('\\','/',':'), '.' , Director::baseFolder());
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if(file_exists($file)) {
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return filemtime($file);
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}
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}
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/**
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* Updates the database schema, creating tables & fields as necessary.
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*
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* @param boolean $quiet Don't show messages
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* @param boolean $populate Populate the database, as well as setting up its schema
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*/
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public function doBuild($quiet = false, $populate = true, $testMode = false) {
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if($quiet) {
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DB::quiet();
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} else {
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$conn = DB::get_conn();
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// Assumes database class is like "MySQLDatabase" or "MSSQLDatabase" (suffixed with "Database")
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$dbType = substr(get_class($conn), 0, -8);
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$dbVersion = $conn->getVersion();
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$databaseName = (method_exists($conn, 'currentDatabase')) ? $conn->getSelectedDatabase() : "";
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if(Director::is_cli()) {
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echo sprintf("\n\nBuilding database %s using %s %s\n\n", $databaseName, $dbType, $dbVersion);
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} else {
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echo sprintf("<h2>Building database %s using %s %s</h2>", $databaseName, $dbType, $dbVersion);
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}
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}
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// Set up the initial database
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if(!DB::is_active()) {
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if(!$quiet) {
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echo '<p><b>Creating database</b></p>';
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}
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// Load parameters from existing configuration
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global $databaseConfig;
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if(empty($databaseConfig) && empty($_REQUEST['db'])) {
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user_error("No database configuration available", E_USER_ERROR);
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}
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$parameters = (!empty($databaseConfig)) ? $databaseConfig : $_REQUEST['db'];
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// Check database name is given
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if(empty($parameters['database'])) {
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user_error("No database name given; please give a value for \$databaseConfig['database']",
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E_USER_ERROR);
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}
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$database = $parameters['database'];
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// Establish connection and create database in two steps
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unset($parameters['database']);
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DB::connect($parameters);
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DB::create_database($database);
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}
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// Build the database. Most of the hard work is handled by DataObject
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$dataClasses = ClassInfo::subclassesFor('DataObject');
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array_shift($dataClasses);
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if(!$quiet) {
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if(Director::is_cli()) echo "\nCREATING DATABASE TABLES\n\n";
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else echo "\n<p><b>Creating database tables</b></p>\n\n";
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}
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// Initiate schema update
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$dbSchema = DB::get_schema();
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$dbSchema->schemaUpdate(function() use($dataClasses, $testMode, $quiet){
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foreach($dataClasses as $dataClass) {
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// Check if class exists before trying to instantiate - this sidesteps any manifest weirdness
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if(!class_exists($dataClass)) continue;
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// Check if this class should be excluded as per testing conventions
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$SNG = singleton($dataClass);
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if(!$testMode && $SNG instanceof TestOnly) continue;
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// Log data
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if(!$quiet) {
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if(Director::is_cli()) echo " * $dataClass\n";
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else echo "<li>$dataClass</li>\n";
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}
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// Instruct the class to apply its schema to the database
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$SNG->requireTable();
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}
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});
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ClassInfo::reset_db_cache();
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if($populate) {
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if(!$quiet) {
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if(Director::is_cli()) echo "\nCREATING DATABASE RECORDS\n\n";
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else echo "\n<p><b>Creating database records</b></p>\n\n";
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}
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foreach($dataClasses as $dataClass) {
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// Check if class exists before trying to instantiate - this sidesteps any manifest weirdness
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// Test_ indicates that it's the data class is part of testing system
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if(strpos($dataClass,'Test_') === false && class_exists($dataClass)) {
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if(!$quiet) {
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if(Director::is_cli()) echo " * $dataClass\n";
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else echo "<li>$dataClass</li>\n";
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}
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singleton($dataClass)->requireDefaultRecords();
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}
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}
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}
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touch(TEMP_FOLDER
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. '/database-last-generated-'
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. str_replace(array('\\', '/', ':'), '.', Director::baseFolder())
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);
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if(isset($_REQUEST['from_installer'])) {
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echo "OK";
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}
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if(!$quiet) {
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echo (Director::is_cli()) ? "\n Database build completed!\n\n" :"<p>Database build completed!</p>";
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}
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ClassInfo::reset_db_cache();
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}
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/**
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* Clear all data out of the database
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*
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* @deprecated since version 4.0
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*/
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public function clearAllData() {
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Deprecation::notice('4.0', 'Use DB::get_conn()->clearAllData() instead');
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DB::get_conn()->clearAllData();
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}
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/**
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* Remove invalid records from tables - that is, records that don't have
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* corresponding records in their parent class tables.
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*/
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public function cleanup() {
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$allClasses = get_declared_classes();
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foreach($allClasses as $class) {
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if(get_parent_class($class) == 'DataObject') {
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$baseClasses[] = $class;
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}
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}
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foreach($baseClasses as $baseClass) {
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// Get data classes
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$subclasses = ClassInfo::subclassesFor($baseClass);
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unset($subclasses[0]);
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foreach($subclasses as $k => $subclass) {
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if(DataObject::has_own_table($subclass)) {
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unset($subclasses[$k]);
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}
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}
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if($subclasses) {
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$records = DB::query("SELECT * FROM \"$baseClass\"");
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foreach($subclasses as $subclass) {
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$recordExists[$subclass] =
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DB::query("SELECT \"ID\" FROM \"$subclass\"")->keyedColumn();
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}
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foreach($records as $record) {
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foreach($subclasses as $subclass) {
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$id = $record['ID'];
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if(($record['ClassName'] != $subclass) &&
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(!is_subclass_of($record['ClassName'], $subclass)) &&
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(isset($recordExists[$subclass][$id]))) {
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$sql = "DELETE FROM \"$subclass\" WHERE \"ID\" = $record[ID]";
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echo "<li>$sql";
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DB::query($sql);
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}
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}
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}
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}
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}
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}
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}
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