silverstripe-framework/core/model/DatabaseAdmin.php
Sam Minnee 96c5be8252 Updating queries to be more DB agnostic
git-svn-id: svn://svn.silverstripe.com/silverstripe/open/modules/sapphire/trunk@66507 467b73ca-7a2a-4603-9d3b-597d59a354a9
2008-11-24 09:31:14 +00:00

269 lines
6.9 KiB
PHP

<?php
// Include the DB class
require_once("core/model/DB.php");
/**
* DatabaseAdmin class
*
* Utility functions for administrating the database. These can be accessed
* via URL, e.g. http://www.yourdomain.com/db/build.
* @package sapphire
* @subpackage model
*/
class DatabaseAdmin extends Controller {
/// SECURITY ///
static $allowed_actions = array(
'build',
'cleanup',
'testinstall',
'import'
);
/**
* Get the data classes, grouped by their root class
*
* @return array Array of data classes, grouped by their root class
*/
function groupedDataClasses() {
// Get all root data objects
$allClasses = get_declared_classes();
foreach($allClasses as $class) {
if(get_parent_class($class) == "DataObject")
$rootClasses[$class] = array();
}
// Assign every other data object one of those
foreach($allClasses as $class) {
if(!isset($rootClasses[$class]) && is_subclass_of($class, "DataObject")) {
foreach($rootClasses as $rootClass => $dummy) {
if(is_subclass_of($class, $rootClass)) {
$rootClasses[$rootClass][] = $class;
break;
}
}
}
}
return $rootClasses;
}
/**
* Display a simple HTML menu of database admin helpers.
*/
function index() {
echo "<h2>Database Administration Helpers</h2>";
echo "<p><a href=\"build\">Add missing database fields (similar to sanity check).</a></p>";
echo "<p><a href=\"../images/flush\">Flush <b>all</b> of the generated images.</a></p>";
}
/**
* Updates the database schema, creating tables & fields as necessary.
*/
function build() {
if(Director::isLive() && Security::database_is_ready() && !Director::is_cli() && !Permission::check("ADMIN")) {
Security::permissionFailure($this,
"This page is secured and you need administrator rights to access it. " .
"Enter your credentials below and we will send you right along.");
return;
}
// The default time limit of 30 seconds is normally not enough
if(ini_get("safe_mode") != "1") {
set_time_limit(600);
}
// Get all our classes
ManifestBuilder::create_manifest_file();
require(MANIFEST_FILE);
$this->doBuild(isset($_REQUEST['quiet']) || isset($_REQUEST['from_installer']));
}
/**
* Check if database needs to be built, and build it if it does.
*/
static function autoBuild() {
$dataClasses = ClassInfo::subclassesFor('DataObject');
$lastBuilt = self::lastBuilt();
foreach($dataClasses as $class) {
if(filemtime(getClassFile($class)) > $lastBuilt) {
$da = new DatabaseAdmin();
$da->doBuild(true);
return;
}
}
}
/**
* Returns the timestamp of the time that the database was last built
*
* @return string Returns the timestamp of the time that the database was
* last built
*/
static function lastBuilt() {
$file = TEMP_FOLDER . '/database-last-generated-' .
str_replace(array('\\','/',':'), '.' , Director::baseFolder());
if(file_exists($file)) {
return filemtime($file);
}
}
/**
* Updates the database schema, creating tables & fields as necessary.
*
* @param boolean $quiet Don't show messages
* @param boolean $populate Populate the database, as well as setting up its schema
*/
function doBuild($quiet = false, $populate = true, $testMode = false) {
if($quiet) {
DB::quiet();
} else {
echo "<h2>Building Database</h2>";
}
// Set up the initial database
if(!DB::isActive()) {
if(!$quiet) {
echo '<p><b>Creating database</b></p>';
}
global $databaseConfig;
$parameters = $databaseConfig ? $databaseConfig : $_REQUEST['db'];
$connect = DB::getConnect($parameters);
$username = $parameters['username'];
$password = $parameters['password'];
$database = $parameters['database'];
if(!$database) {
user_error("No database name given; please give a value for \$databaseConfig['database']", E_USER_ERROR);
}
DB::createDatabase($connect, $username, $password, $database);
// ManifestBuilder::compileManifest();
}
// Build the database. Most of the hard work is handled by DataObject
$dataClasses = ClassInfo::subclassesFor('DataObject');
array_shift($dataClasses);
if(!$quiet) {
if(Director::is_cli()) echo "\nCREATING DATABASE TABLES\n\n";
else echo "\n<p><b>Creating database tables</b></p>\n\n";
}
$conn = DB::getConn();
$conn->beginSchemaUpdate();
foreach($dataClasses as $dataClass) {
$SNG = singleton($dataClass);
if($testMode || !($SNG instanceof TestOnly)) {
if(!$quiet) {
if(Director::is_cli()) echo " * $dataClass\n";
else echo "<li>$dataClass</li>\n";
}
$SNG->requireTable();
}
}
$conn->endSchemaUpdate();
if($populate) {
if(!$quiet) {
if(Director::is_cli()) echo "\nCREATING DATABASE RECORDS\n\n";
else echo "\n<p><b>Creating database records</b></p>\n\n";
}
foreach($dataClasses as $dataClass) {
// Test_ indicates that it's the data class is part of testing system
if(strpos($dataClass,'Test_') === false) {
if(!$quiet) {
if(Director::is_cli()) echo " * $dataClass\n";
else echo "<li>$dataClass</li>\n";
}
singleton($dataClass)->requireDefaultRecords();
}
}
}
touch(TEMP_FOLDER . '/database-last-generated-' .
str_replace(array('\\', '/', ':'), '.', Director::baseFolder()));
if(isset($_REQUEST['from_installer'])) {
echo "OK";
}
}
/**
* Clear all data out of the database
* @todo Move this code into Database class, for DB abstraction
*/
function clearAllData() {
$tables = DB::query("SHOW TABLES")->column();
foreach($tables as $table) {
DB::query("TRUNCATE \"$table\"");
}
}
/**
* Method used to check mod_rewrite is working correctly in the installer.
*/
function testinstall() {
echo "OK";
}
/**
* Remove invalid records from tables - that is, records that don't have
* corresponding records in their parent class tables.
*/
function cleanup() {
$allClasses = get_declared_classes();
foreach($allClasses as $class) {
if(get_parent_class($class) == 'DataObject') {
$baseClasses[] = $class;
}
}
foreach($baseClasses as $baseClass) {
// Get data classes
$subclasses = ClassInfo::subclassesFor($baseClass);
unset($subclasses[0]);
foreach($subclasses as $k => $subclass) {
if(!singleton($subclass)->databaseFields()) {
unset($subclasses[$k]);
}
}
if($subclasses) {
$records = DB::query("SELECT * FROM \"$baseClass\"");
foreach($subclasses as $subclass) {
$recordExists[$subclass] =
DB::query("SELECT \"ID\" FROM \"$subclass\"")->keyedColumn();
}
foreach($records as $record) {
foreach($subclasses as $subclass) {
$id = $record['ID'];
if(($record['ClassName'] != $subclass) &&
(!is_subclass_of($record['ClassName'], $subclass)) &&
($recordExists[$subclass][$id])) {
$sql = "DELETE FROM \"$subclass\" WHERE \"ID\" = $record[ID]";
echo "<li>$sql";
DB::query($sql);
}
}
}
}
}
}
}
?>