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pkrenn: Various database updates (merged from branches/gsoc)

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git-svn-id: svn://svn.silverstripe.com/silverstripe/open/modules/sapphire/trunk@41704 467b73ca-7a2a-4603-9d3b-597d59a354a9
This commit is contained in:
Ingo Schommer 2007-09-14 01:28:16 +00:00
parent 713802622b
commit f0b9103de4
5 changed files with 282 additions and 45 deletions
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21
core/model/DB.php
View File

@ -48,11 +48,24 @@ class DB {
*/
static function connect($databaseConfig) {
if(!$databaseConfig['type']) user_error("DB::connect: Not passed a valid database config", E_USER_ERROR);
if ($databaseConfig['pdo']) { // TODO:pkrenn_remove
$conn = new PDODatabase($databaseConfig);
} else { // TODO:pkrenn_remove begin
$dbClass = $databaseConfig['type'];
$conn = new $dbClass($databaseConfig);
} // TODO:pkrenn_remove end
DB::setConn($conn);
}
/**
* Build the connection string from input.
* @param array $parameters The connection details.
* @return string $connect The connection string.
**/
public function getConnect($parameters) {
return DB::$globalConn->getConnect($parameters);
}
/**
* Execute the given SQL query.
* @param string $sql The SQL query to execute
@ -106,10 +119,14 @@ class DB {
* Create the database and connect to it. This can be called if the
* initial database connection is not successful because the database
* does not exist.
* @param string $connect Connection string
* @param string $username Database username
* @param string $password Database Password
* @param string $database Database to which to create
* @return boolean Returns true if successful
*/
static function createDatabase() {
return DB::$globalConn->createDatabase();
static function createDatabase($connect, $username, $password, $database) {
return DB::$globalConn->createDatabase($connect, $username, $password, $database);
}
/**

13
core/model/Database.php
View File

@ -49,9 +49,20 @@ abstract class Database extends Object {
* Create the database and connect to it. This can be called if the
* initial database connection is not successful because the database
* does not exist.
* @param string $connect Connection string
* @param string $username Database username
* @param string $password Database Password
* @param string $database Database to which to create
* @return boolean Returns true if successful
*/
abstract function createDatabase();
abstract function createDatabase($connect, $username, $password, $database);
/**
* Build the connection string from input
* @param array $parameters The connection details
* @return string $connect The connection string
**/
abstract function getConnect($parameters);
/**
* Create a new table.

7
core/model/DatabaseAdmin.php
View File

@ -135,7 +135,12 @@ class DatabaseAdmin extends Controller {
if(!$quiet) {
echo '<p><b>Creating database</b></p>';
}
DB::createDatabase();
$parameters = $_REQUEST['db'];
$connect = DB::getConnect($parameters);
$username = $parameters[username];
$password = $parameters[password];
$database = $parameters[database];
DB::createDatabase($connect, $username, $password, $database);
// ManifestBuilder::compileManifest();
}

9
core/model/MySQLDatabase.php
View File

@ -46,6 +46,13 @@ class MySQLDatabase extends Database {
parent::__construct();
}
/**
* Not implemented, needed for PDO
*/
public function getConnect($parameters) {
return null;
}
/**
* Returns true if this database supports collations
* @return boolean
@ -112,7 +119,7 @@ class MySQLDatabase extends Database {
return $this->active ? true : false;
}
public function createDatabase() {
public function createDatabase($connect, $username, $password, $db) {
$this->query("CREATE DATABASE $this->database");
$this->query("USE $this->database");

257
core/model/PDODatabase.php
View File

@ -1,11 +1,30 @@
<?php
/**
* @package sapphire
* @subpackage core
*/
/**
* PDO (general database) connector class.
*/
class PDODatabase extends Database {
/**
* Connection to the DBMS.
* @var resource
*/
private $dbConn;
/**
* True if we are connected to a database.
* @var boolean
*/
private $active;
/**
* The name of the database.
* @var string
*/
private $database;
@ -14,58 +33,229 @@ class PDODatabase extends Database {
* @param parameters An map of parameters, which should include:
* <ul><li>database: The database to connect with</li>
* <li>server: The server, eg, localhost</li>
* <li>port: The port on which the server is listening (optional)</li>
* <li>instance: Instance of the server, MS SQL only (optional)</li>
* <li>username: The username to log on with</li>
* <li>password: The password to log on with</li>
* <li>database: The database to connect to</li></ul>
*/
public function __construct($parameters) {
switch ($parameters['database']) {
case "MySQL":
$connect = 'mysql:host=' . $parameters['server'] . ';dbname=' . $parameters['database'];
break;
case "PostgreSQL":
$connect = 'pgsql:host=' . $parameters['server'] . ';port=5432;dbname=' . $parameters['database'];
break;
case "MSSQL":
$connect = 'mssql:host=' . $parameters['server'] . ';dbname=' . $parameters['database'];
break;
default: $this->databaseError("Database not available");
$connect = PDODatabase::getConnect($parameters);
$connectWithDB = $connect . ';dbname=' . $parameters['database'];
try { // Try connect to the database, if it does not exist, create it
$this->dbConn = new PDO($connectWithDB, $parameters['username'], $parameters['password']);
} catch (PDOException $e) {
if (!self::createDatabase($connect, $parameters['username'], $parameters['password'], $parameters['database'])) {
$this->databaseError("Could not connect to the database, make sure the server is available and user credentials are correct");
}
}
$this->dbConn = new PDO($connect, $parameters['username'], $parameters['password']);
$this->database = $parameters['database'];
if(!$this->dbConn) $this->databaseError("Could connect to MySQL database");
parent::__construct();
}
/**
* Build the connection string from input.
* @param array $parameters The connection details.
* @return string $connect The connection string.
**/
public function getConnect($parameters) {
switch ($parameters['type']) {
case "mysql":
$port = '3306';
$type = 'mysql';
$instance = '';
break;
case "postgresql":
$port = '5432';
$type = 'pgsql';
$instance = '';
break;
case "mssql":
$port = '1433';
if (isset($parameters['instance']) && $parameters['instance'] != '') {
$instance = '\\' . $parameters['instance'];
} else {
$instance = '';
}
$type = 'mssql';
break;
default:
$this->databaseError("This database server is not available");
}
if (isset($parameters['port']) && is_numeric($parameters['port'])) {
$port = $parameters['port'];
}
$connect = $type . ':host=' . $parameters['server'] . $instance . ';port=' . $port;
return $connect;
}
/**
* Returns true if this database supports collations
*/
public function supportsCollations() {
$collations = false;
switch (PDO::ATTR_DRIVER_NAME) {
case "pgsql": // Generally supported in PostgreSQL (supported versions)
case "mssql": // Generally supported in MS SQL (supported versions)
$collations = true;
break;
case "mysql":
if ($this->getVersion() >= 4.1) { // Supported in MySQL since 4.1
$collations = true;
}
break;
}
return $collations;
}
//private $mysqlVersion;
/**
* Get the database version.
* @return float
*/
public function getVersion() {
switch ($type) {
case "mysql":
case "postgresql":
$query = "SELECT VERSION()";
break;
case "mssql":
$query = "SELECT @@VERSION";
break;
}
$getData = $dbConn->prepare($query);
$getData->execute();
$dbVersion = $getData->fetchColumn();
$version = ereg_replace("([A-Za-z-])", "", $dbVersion);
return substr(trim($version), 0, 3); // Just get the major and minor version
}
public function query($sql, $errorLevel = E_USER_ERROR) {
if(isset($_REQUEST['previewwrite']) && in_array(strtolower(substr($sql,0,6)), array('insert','update'))) {
echo "<p>Will execute: $sql</p>";
return;
}
public function getGeneratedID() {
//Debug::backtrace();
if(isset($_REQUEST['showqueries'])) {
Debug::message("\n" . $sql . "\n");
$starttime = microtime(true);
}
public function getNextID($table) {
$query = $dbConn->prepare($sql);
$handle = $query->execute(); // Execute and save the return value (true or false)
$result = $query->fetchAll(); // Get the result itself
if(isset($_REQUEST['showqueries'])) {
$duration = microtime(true) - $starttime;
Debug::message("\n" . $duration . "\n");
}
public function isActive() {
if(!$handle && $errorLevel) {
$error = $query->errorInfo();
$this->databaseError("Couldn't run query: $sql | " . $error[2], $errorLevel);
}
public function createDatabase() {
return new PDOQuery($result);
}
/**
* Create a new table with an integer primary key called ID.
* Get the ID for the next new record for the table.
* @var string $table The name od the table.
* @return int
*/
public function createTable($tableName) {
public function getNextID($table) {
$sql = "SELECT MAX(ID)+1 FROM :table";
$create->bindParam(":table", $table);
$query = $dbConn->prepare($sql);
$handle = $query->execute();
$result = $query->fetchColumn();
return $handle ? $result : 1;
}
public function isActive() {
return $this->active ? true : false;
}
/**
* Create the database and connect to it. This can be called if the
* initial database connection is not successful because the database
* does not exist.
* @param string $connect Connection string
* @param string $username Database username
* @param string $password Database Password
* @param string $database Database to which to create
* @return boolean Returns true if successful
*/
public function createDatabase($connect, $username, $password, $database) {
try {
$dbConn = new PDO($connect, $username, $password);
$create = $dbConn->prepare("CREATE DATABASE :database");
$create->bindParam(":database", $database);
$create->execute();
$this->active = true;
} catch (PDOException $e) {
$this->databaseError($e->getMessage());
return false;
}
return true;
}
/**
* Create a new table with an integer primary key called ID.
* @var string $tableName The name of the table.
* @return void.
*/
public function createTable($tableName, $fields = null, $indexes = null) {
$fieldSchemas = $indexSchemas = "";
if ($fields) {
foreach($fields as $k => $v) $fieldSchemas .= "`$k` $v,\n";
}
if ($indexes) {
foreach($indexes as $k => $v) $fieldSchemas .= $this->getIndexSqlDefinition($k, $v) . ",\n";
}
switch ($parameters['type']) {
case "mysql": $create = $dbConn->prepare("CREATE TABLE :tableName (ID INT(11) NOT NULL AUTO_INCREMENT, $fieldSchemas $indexSchemas PRIMARY KEY (ID)) TYPE=MyISAM");
break;
case "postgresql": $create = $dbConn->prepare("CREATE TABLE :tableName (ID SERIAL, $fieldSchemas $indexSchemas PRIMARY KEY (ID))");
break;
case "mssql": $create = $dbConn->prepare("CREATE TABLE :tableName (ID INT(11) IDENTITY(1,1), $fieldSchemas $indexSchemas PRIMARY KEY (ID))");
break;
default:
$this->databaseError("This database server is not available");
}
$create->bindParam(":tableName", $tableName);
$create->execute();
}
public function alterTable($table, $newFields, $newIndexes, $alteredFields, $alteredIndexes) {
$fieldSchemas = $indexSchemas = "";
if ($newFields) {
foreach($newFields as $k => $v) $alterList[] .= "ADD `$k` $v";
}
if ($newIndexes) {
foreach($newIndexes as $k => $v) $alterList[] .= "ADD " . $this->getIndexSqlDefinition($k, $v) . ",\n";
}
if ($alteredFields) {
foreach($alteredFields as $k => $v) $alterList[] .= "CHANGE `$k` `$k` $v";
}
if ($alteredIndexes) foreach($alteredIndexes as $k => $v) {
$alterList[] .= "DROP INDEX `$k`";
$alterList[] .= "ADD ". $this->getIndexSqlDefinition($k, $v);
}
$alterations = implode(",\n", $alterList);
$this->query("ALTER TABLE `$tableName` " . $alterations);
}
/**
* Rename an existing table, the TO is necessary for PostgreSQL and MS SQL.
* @var string $oldTableName The name of the existing table.
* @var string $newTableName How the table should be named from now on.
* @return void.
*/
public function renameTable($oldTableName, $newTableName) {
$query = "ALTER TABLE :oldTableName RENAME TO :newTableName";
$create->bindParam(":oldTableName", $oldTableName);
$create->bindParam(":newTableName", $newTableName);
$create = $dbConn->prepare($query);
$create->execute();
}
/**
@ -80,7 +270,13 @@ class PDODatabase extends Database {
* Add the given field to the given table.
*/
public function createField($tableName, $fieldName, $fieldSpec) {
$create = $dbConn->prepare("ALTER TABLE :tableName ADD :fieldName :fieldSpec");
$create->bindParam(":tableName", $tableName);
$create->bindParam(":fieldName", $fieldName);
$create->bindParam(":fieldSpec", $fieldSpec);
$create->execute();
}
/**
* Change the database type of the given field
*/
@ -117,32 +313,33 @@ class PDODatabase extends Database {
}
/**
* A result-set from a MySQL database.
* A result-set from a database query (array).
*/
class MySQLQuery extends Query {
private $database;
private $handle;
class PDOQuery extends Query {
private $result;
/**
* Hook the result-set given into a Query class, suitable for use by sapphire.
* @param database The database object that created this query.
* @param handle the internal mysql handle that is points to the resultset.
* @param array $result The array of all returned values.
*/
public function __construct(MySQLDatabase $database, $handle) {
$this->database = $database;
$this->handle = $handle;
public function __construct(PDODatabase $result) {
$this->result = $result;
parent::__construct();
}
public function __destroy() {
$this->result = null;
}
public function seek($row) {
return in_array($row, $this->result);
}
public function numRecords() {
return count($this->result);
}
public function nextRecord() {
}
}