fetchResult($sql, 'Engine');
} else {
$storage_engines
= $GLOBALS['dbi']->fetchResult('SHOW STORAGE ENGINES', 'Engine');
}
}
return $storage_engines;
}
/**
* returns HTML code for storage engine select box
*
* @param string $name The name of the select form element
* @param string $id The ID of the form field
* @param string $selected The selected engine
* @param boolean $offerUnavailableEngines Should unavailable storage
* engines be offered?
*
* @static
* @return string html selectbox
*/
static public function getHtmlSelect(
$name = 'engine', $id = null,
$selected = null, $offerUnavailableEngines = false
) {
$selected = strtolower($selected);
$output = '' . "\n";
return $output;
}
/**
* public static final PMA_StorageEngine getEngine()
*
* Loads the corresponding engine plugin, if available.
*
* @param string $engine The engine ID
*
* @return PMA_StorageEngine The engine plugin
*/
static public function getEngine($engine)
{
$engine = str_replace('/', '', str_replace('.', '', $engine));
$filename = './libraries/engines/' . strtolower($engine) . '.lib.php';
if (file_exists($filename) && include_once $filename) {
$class_name = 'PMA_StorageEngine_' . $engine;
$engine_object = new $class_name($engine);
} else {
$engine_object = new PMA_StorageEngine($engine);
}
return $engine_object;
}
/**
* return true if given engine name is supported/valid, otherwise false
*
* @param string $engine name of engine
*
* @static
* @return boolean whether $engine is valid or not
*/
static public function isValid($engine)
{
if ($engine == "PBMS") {
return true;
}
$storage_engines = PMA_StorageEngine::getStorageEngines();
return isset($storage_engines[$engine]);
}
/**
* returns as HTML table of the engine's server variables
*
* @return string The table that was generated based on the retrieved
* information
*/
function getHtmlVariables()
{
$odd_row = false;
$ret = '';
foreach ($this->getVariablesStatus() as $details) {
$ret .= '
' . "\n"
. ' '
. __('There is no detailed status information available for this storage engine.')
. "\n"
. '
' . "\n";
} else {
$ret = '
' . "\n" . $ret . '
' . "\n";
}
return $ret;
}
/**
* Returns the engine specific handling for
* PMA_ENGINE_DETAILS_TYPE_SIZE type variables.
*
* This function should be overridden when
* PMA_ENGINE_DETAILS_TYPE_SIZE type needs to be
* handled differently for a particular engine.
*
* @param integer $value Value to format
*
* @return string the formatted value and its unit
*/
function resolveTypeSize($value)
{
return PMA_Util::formatByteDown($value);
}
/**
* returns array with detailed info about engine specific server variables
*
* @return array with detailed info about specific engine server variables
*/
function getVariablesStatus()
{
$variables = $this->getVariables();
$like = $this->getVariablesLikePattern();
if ($like) {
$like = " LIKE '" . $like . "' ";
} else {
$like = '';
}
$mysql_vars = array();
$sql_query = 'SHOW GLOBAL VARIABLES ' . $like . ';';
$res = $GLOBALS['dbi']->query($sql_query);
while ($row = $GLOBALS['dbi']->fetchAssoc($res)) {
if (isset($variables[$row['Variable_name']])) {
$mysql_vars[$row['Variable_name']] = $variables[$row['Variable_name']];
} elseif (! $like
&& strpos(strtolower($row['Variable_name']), strtolower($this->engine)) !== 0
) {
continue;
}
$mysql_vars[$row['Variable_name']]['value'] = $row['Value'];
if (empty($mysql_vars[$row['Variable_name']]['title'])) {
$mysql_vars[$row['Variable_name']]['title'] = $row['Variable_name'];
}
if (! isset($mysql_vars[$row['Variable_name']]['type'])) {
$mysql_vars[$row['Variable_name']]['type']
= PMA_ENGINE_DETAILS_TYPE_PLAINTEXT;
}
}
$GLOBALS['dbi']->freeResult($res);
return $mysql_vars;
}
/**
* Constructor
*
* @param string $engine The engine ID
*/
function __construct($engine)
{
$storage_engines = PMA_StorageEngine::getStorageEngines();
if (! empty($storage_engines[$engine])) {
$this->engine = $engine;
$this->title = $storage_engines[$engine]['Engine'];
$this->comment
= (isset($storage_engines[$engine]['Comment'])
? $storage_engines[$engine]['Comment']
: '');
switch ($storage_engines[$engine]['Support']) {
case 'DEFAULT':
$this->support = PMA_ENGINE_SUPPORT_DEFAULT;
break;
case 'YES':
$this->support = PMA_ENGINE_SUPPORT_YES;
break;
case 'DISABLED':
$this->support = PMA_ENGINE_SUPPORT_DISABLED;
break;
case 'NO':
default:
$this->support = PMA_ENGINE_SUPPORT_NO;
}
}
}
/**
* public String getTitle()
*
* Reveals the engine's title
*
* @return string The title
*/
function getTitle()
{
return $this->title;
}
/**
* public String getComment()
*
* Fetches the server's comment about this engine
*
* @return string The comment
*/
function getComment()
{
return $this->comment;
}
/**
* public String getSupportInformationMessage()
*
* @return string The localized message.
*/
function getSupportInformationMessage()
{
switch ($this->support) {
case PMA_ENGINE_SUPPORT_DEFAULT:
$message = __('%s is the default storage engine on this MySQL server.');
break;
case PMA_ENGINE_SUPPORT_YES:
$message = __('%s is available on this MySQL server.');
break;
case PMA_ENGINE_SUPPORT_DISABLED:
$message = __('%s has been disabled for this MySQL server.');
break;
case PMA_ENGINE_SUPPORT_NO:
default:
$message = __('This MySQL server does not support the %s storage engine.');
}
return sprintf($message, htmlspecialchars($this->title));
}
/**
* public string[][] getVariables()
*
* Generates a list of MySQL variables that provide information about this
* engine. This function should be overridden when extending this class
* for a particular engine.
*
* @abstract
* @return Array The list of variables.
*/
function getVariables()
{
return array();
}
/**
* returns string with filename for the MySQL helppage
* about this storage engine
*
* @return string mysql helppage filename
*/
function getMysqlHelpPage()
{
return $this->engine . '-storage-engine';
}
/**
* public string getVariablesLikePattern()
*
* @abstract
* @return string SQL query LIKE pattern
*/
function getVariablesLikePattern()
{
return false;
}
/**
* public String[] getInfoPages()
*
* Returns a list of available information pages with labels
*
* @abstract
* @return array The list
*/
function getInfoPages()
{
return array();
}
/**
* public String getPage()
*
* Generates the requested information page
*
* @param string $id The page ID
*
* @abstract
* @return string The page
* boolean or false on error.
*/
function getPage($id)
{
return false;
}
}
?>