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ENHANCEMENT: configuration helper added

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This commit is contained in:
Andreas Piening 2010-03-09 23:58:36 +00:00
parent 41af325ea5
commit 065106bb80
1 changed files with 109 additions and 0 deletions
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code/SQLiteDatabaseConfigurationHelper.php Normal file
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<?php
/**
* This is a helper class for the SS installer.
*
* It does all the specific checking for SQLiteDatabase
* to ensure that the configuration is setup correctly.
*
* @package sqlite3
*/
class SQLiteDatabaseConfigurationHelper implements DatabaseConfigurationHelper {
/**
* Ensure that one of the database classes
* is available. If it is, we assume the PHP module for this
* database has been setup correctly.
*
* @param array $databaseConfig Associative array of database configuration, e.g. "type", "path" etc
* @return boolean
*/
public function requireDatabaseFunctions($databaseConfig) {
if($databaseConfig['type'] == 'SQLitePDODatabase' || version_compare(phpversion(), '5.3.0', '<')) return class_exists('PDO') ? true : false;
return class_exists('SQLite3');
}
/**
* Ensure that the database server exists.
* @param array $databaseConfig Associative array of db configuration, e.g. "type", "path" etc
* @return array Result - e.g. array('success' => true, 'error' => 'details of error')
*/
public function requireDatabaseServer($databaseConfig) {
if(is_writable($databaseConfig['path'])) {
$success = true;
} else {
$success = false;
$error = 'Webserver can\'t write database file to ' . $databaseConfig['path'];
}
return array(
'success' => $success,
'error' => $error
);
}
/**
* Ensure a database connection is possible using credentials provided.
* @param array $databaseConfig Associative array of db configuration, e.g. "type", "path" etc
* @return array Result - e.g. array('success' => true, 'error' => 'details of error')
*/
public function requireDatabaseConnection($databaseConfig) {
$success = false;
$error = '';
SQLite3Database::safe_dir($databaseConfig['path']);
$file = $databaseConfig['path'] . '/' . $databaseConfig['database'];
if($databaseConfig['type'] == 'SQLitePDODatabase' || version_compare(phpversion(), '5.3.0', '<')) {
$conn = @(new PDO("sqlite:$file"));
} else {
$conn = @(new SQLite3($file, SQLITE3_OPEN_READWRITE | SQLITE3_OPEN_CREATE, $parameters['key']));
}
if($conn) {
$success = true;
} else {
$success = false;
$error = '';
}
return array(
'success' => $success,
'connection' => $conn,
'error' => $error
);
}
/**
* Ensure that the database connection is able to use an existing database,
* or be able to create one if it doesn't exist.
*
* Unfortunately, PostgreSQLDatabase doesn't support automatically creating databases
* at the moment, so we can only check that the chosen database exists.
*
* @param array $databaseConfig Associative array of db configuration, e.g. "server", "username" etc
* @return array Result - e.g. array('success' => true, 'alreadyExists' => 'true')
*/
public function requireDatabaseOrCreatePermissions($databaseConfig) {
$success = false;
$alreadyExists = false;
$canCreate = false;
$check = $this->requireDatabaseConnection($databaseConfig);
$conn = $check['connection'];
if($conn) {
$success = true;
$alreadyExists = true;
} else {
$success = false;
$alreadyExists = false;
}
return array(
'success' => $success,
'alreadyExists' => $alreadyExists,
);
}
}