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<?php
class ConfigManager
{
public static function load($classname, $module_name, $entry_name = '')
{
try
{
return CacheManager::try_load($classname, $module_name, $entry_name);
}
catch(CacheDataNotFoundException $ex)
{
$data = null;
try
{
$data = self::load_in_db($module_name, $entry_name);
CacheManager::save($data, $module_name, $entry_name);
}
catch(ConfigNotFoundException $ex)
{
$data = new $classname();
$data->set_default_values();
$name = self::compute_entry_name($module_name, $entry_name);
self::save_in_db($name, $data);
CacheManager::save($data, $module_name, $entry_name);
}
catch (PHPBoostNotInstalledException $ex)
{
$data = new $classname();
$data->set_default_values();
}
catch (MySQLUnexistingDatabaseException $ex)
{
$data = new $classname();
$data->set_default_values();
}
catch (MySQLQuerierException $ex)
{
$data = new $classname();
$data->set_default_values();
}
return $data;
}
}
private static function load_in_db($module_name, $entry_name = '')
{
$name = self::compute_entry_name($module_name, $entry_name);
try
{
$result = PersistenceContext::get_querier()->select_single_row(DB_TABLE_CONFIGS, array('value'), 'WHERE name = :name', array('name' => $name));
}
catch(RowNotFoundException $ex)
{
throw new ConfigNotFoundException($name);
}
$required_value = @unserialize($result['value']);
if ($required_value === false)
{
throw new ConfigNotFoundException($name);
}
return $required_value;
}
private static function compute_entry_name($module_name, $entry_name)
{
if (!empty($entry_name))
{
return Url::encode_rewrite($module_name . '-' . $entry_name);
}
else
{
return Url::encode_rewrite($module_name);
}
}
public static function save($module_name, ConfigData $data, $entry_name = '')
{
$name = self::compute_entry_name($module_name, $entry_name);
self::save_in_db($name, $data);
CacheManager::save($data, $module_name, $entry_name);
}
public static function delete($module_name, $entry_name = '')
{
$name = self::compute_entry_name($module_name, $entry_name);
try {
PersistenceContext::get_querier()->delete(DB_TABLE_CONFIGS, 'WHERE name=:name', array('name' => $name));
} catch (MySQLQuerierException $e) {
}
CacheManager::invalidate($module_name, $entry_name);
}
private static function save_in_db($name, ConfigData $data)
{
$serialized_data = TextHelper::serialize($data);
$update = PersistenceContext::get_querier()->inject('UPDATE ' . DB_TABLE_CONFIGS . ' SET value = :value WHERE name = :name', array('value' => $serialized_data, 'name' => $name));
if ($update->get_affected_rows() == 0)
{
$count = PersistenceContext::get_querier()->count(DB_TABLE_CONFIGS, 'WHERE name = :name', array('name' => $name));
if ($count == 0)
{
PersistenceContext::get_querier()->inject('INSERT INTO ' . DB_TABLE_CONFIGS . ' (name, value) VALUES (:name, :value)', array('name' => $name, 'value' => $serialized_data));
}
}
}
}
?>