/**
* Checks if PHP version is high enough to run Mibew.
*
* @return boolean True if PHP version is suitable and false otherwise.
*/
protected function checkPhpVersion()
{
$current_version = $this->getPhpVersionId();
if ($current_version < self::MIN_PHP_VERSION) {
$this->errors[] = getlocal("PHP version is {0}, but Mibew works with {1} and later versions.", array(Utils::formatVersionId($current_version), Utils::formatVersionId(self::MIN_PHP_VERSION)));
return false;
}
return true;
}
/**
* Tries to update a plugin.
*
* @param string $plugin_name Name of the plugin to update.
* @return boolean Indicates if the plugin has been updated or not.
*/
public function update($plugin_name)
{
$plugin = new PluginInfo($plugin_name);
if (!$plugin->needsUpdate()) {
// There is no need to update the plugin
return true;
}
if (!$plugin->canBeUpdated()) {
// The plugin cannot be updated.
return false;
}
try {
// Perform incremental updates
$updates = MaintenanceUtils::getUpdates($plugin->getClass());
foreach ($updates as $version => $method) {
// Skip updates to lower versions.
if (version_compare($version, $plugin->getInstalledVersion()) <= 0) {
continue;
}
// Skip updates to versions that greater then the current plugin
// version.
if (version_compare($version, $plugin->getVersion()) > 0) {
break;
}
// Run the update
if (!$method()) {
// By some reasons we cannot update to the next version.
// Stop the process here.
return false;
}
// Store new version number in the database. With this info
// we can rerun the updating process if one of pending
// updates fails.
$plugin->getState()->version = $version;
$plugin->getState()->save();
}
} catch (\Exception $e) {
// Something went wrong
trigger_error(sprintf('Update of "%s" plugin failed: %s', $plugin->getName(), $e->getMessage()), E_USER_WARNING);
return false;
}
// All updates are done. Make sure the state of the plugin contains
// current plugin version.
$plugin->getState()->version = $plugin->getVersion();
$plugin->getState()->save();
return true;
}
/**
* Performs all database updates needed for 2.1.0.
*
* @return boolean True if the updates have been applied successfully and
* false otherwise.
*/
protected function update20100()
{
$db = $this->getDatabase();
if (!$db) {
return false;
}
try {
// Alter locale table.
$db->query('ALTER TABLE {locale} ADD COLUMN name varchar(128) NOT NULL DEFAULT "" AFTER code');
$db->query('ALTER TABLE {locale} ADD COLUMN rtl tinyint NOT NULL DEFAULT 0');
$db->query('ALTER TABLE {locale} ADD COLUMN time_locale varchar(128) NOT NULL DEFAULT "en_US"');
$db->query('ALTER TABLE {locale} ADD COLUMN date_format text');
$db->query('ALTER TABLE {locale} ADD UNIQUE KEY code (code)');
// Create a table for available updates.
$db->query('CREATE TABLE {availableupdate} ( ' . 'id INT NOT NULL auto_increment PRIMARY KEY, ' . 'target varchar(255) NOT NULL, ' . 'version varchar(255) NOT NULL, ' . 'url text, ' . 'description text, ' . 'UNIQUE KEY target (target) ' . ') charset utf8 ENGINE=InnoDb');
// Generate Unique ID of Mibew instance.
$db->query('INSERT INTO {config} (vckey, vcvalue) VALUES (:key, :value)', array(':key' => '_instance_id', ':value' => Utils::generateInstanceId()));
} catch (\Exception $e) {
$this->errors[] = getlocal('Cannot update tables: {0}', $e->getMessage());
return false;
}
try {
// Store configs for available locales in the database.
$locales = $db->query('SELECT localeid as id, code from {locale}', null, array('return_rows' => Database::RETURN_ALL_ROWS));
$locales_info = get_locales();
foreach ($locales as $row) {
$id = $row['id'];
$code = $row['code'];
$info = (isset($locales_info[$code]) ? $locales_info[$code] : array()) + array('name' => $code, 'rtl' => false, 'time_locale' => 'en_US', 'date_format' => array('full' => '%d %B %Y, %H:%M', 'date' => '%d %B %Y', 'time' => '%H:%M'));
$db->query('UPDATE {locale} SET ' . 'name = :name, rtl = :rtl, time_locale = :time_locale, ' . 'date_format = :date_format ' . 'WHERE localeid = :id', array(':id' => $id, ':name' => $info['name'], ':rtl' => $info['rtl'] ? 1 : 0, ':time_locale' => $info['time_locale'], ':date_format' => serialize($info['date_format'])));
}
} catch (\Exception $e) {
$this->errors[] = getlocal('Cannot update content: {0}', $e->getMessage());
return false;
}
return true;
}
/**
* Performs all actions that are needed to update database structure.
*
* @return boolean True if the system updated successfully and false
* otherwise.
*/
public function run()
{
$current_version = $this->getDatabaseVersion();
if (!preg_match("/^([0-9]{1,2}\.){2}[0-9]{1,2}(-(alpha|beta|rc)\.[0-9]+)?$/", $current_version)) {
$this->errors[] = getlocal(
'The current version ({0}) is unknown or wrong formated',
array($current_version)
);
return false;
}
if (version_compare($current_version, MIBEW_VERSION) == 0) {
$this->log[] = getlocal('The database is already up to date');
return true;
}
if (version_compare($current_version, self::MIN_VERSION) < 0) {
$this->errors[] = getlocal(
'You can update the system only from {0} and later versions. The current version is {1}',
array(
self::MIN_VERSION,
$current_version
)
);
return false;
}
try {
// Perform incremental updates
foreach (Utils::getUpdates($this) as $version => $method) {
if (version_compare($version, $current_version) <= 0) {
// Skip updates to lower versions.
continue;
}
// Run the update
if (!$method()) {
$this->errors[] = getlocal('Cannot update to {0}', array($version));
return false;
}
// Store new version number in the database. With this info
// we can rerun the updating process if one of pending
// updates fails.
if (!$this->setDatabaseVersion($version)) {
return false;
} else {
$this->log[] = getlocal('Updated to {0}', array($version));
}
$current_version = $version;
}
} catch (\Exception $e) {
// Something went wrong
$this->errors[] = getlocal(
'Update failed: {0}',
array($e->getMessage())
);
return false;
}
// Use the version from the PHP's constant as the current database
// version.
if ($this->setDatabaseVersion(MIBEW_VERSION)) {
return false;
}
// Clean up the cache
$this->cache->flush();
return true;
}