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<?php |
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/** |
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* @author Sergey Bondarenko, <[email protected]> |
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*/ |
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namespace Drupal\TqExtension\Utils; |
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class DatabaseManager |
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{ |
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/** |
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* @var string |
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*/ |
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private $credentials = '-u%s -p%s'; |
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/** |
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* Name of original database. |
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* |
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* @var string |
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*/ |
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private $originalName = ''; |
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/** |
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* Name of temporary database that will store data from original. |
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* |
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* @var string |
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*/ |
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private $newName = ''; |
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/** |
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* Name of an object where this class is called. |
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* |
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* @var string |
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*/ |
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private $callee; |
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/** |
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* @param string $connection |
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* Database connection name (key in $databases array from settings.php). |
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* @param string $callee |
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* Must be the value of "self::class" of callee object. |
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*/ |
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public function __construct($connection, $callee) |
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{ |
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if (!defined('DRUPAL_ROOT') || !function_exists('conf_path')) { |
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throw new \RuntimeException('Drupal is not bootstrapped.'); |
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} |
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if (!class_exists($callee)) { |
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throw new \InvalidArgumentException(sprintf('An object of "%s" type does not exist.', $callee)); |
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} |
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$databases = []; |
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require sprintf('%s/%s/settings.php', DRUPAL_ROOT, conf_path()); |
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if (empty($databases[$connection])) { |
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throw new \InvalidArgumentException(sprintf('The "%s" database connection does not exist.', $connection)); |
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} |
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$info = $databases[$connection]['default']; |
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$this->callee = $callee; |
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$this->originalName = $info['database']; |
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$this->newName = "tqextension_$this->originalName"; |
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$this->credentials = sprintf($this->credentials, $info['username'], $info['password']); |
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$this->cloneDatabase(); |
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} |
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/** |
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* Restore original database. |
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*/ |
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public function __destruct() |
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{ |
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$this->exec("mysqldump $this->credentials $this->newName | mysql $this->credentials $this->originalName"); |
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} |
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/** |
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* Store original database to temporary for future restoring. |
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*/ |
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private function cloneDatabase() |
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{ |
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$actions = []; |
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// Need to drop temporary database if it was created previously. |
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if (!empty($this->exec("mysql $this->credentials -e 'show databases' | grep $this->newName"))) { |
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$actions[] = "drop"; |
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} |
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$actions[] = "create"; |
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foreach ($actions as $action) { |
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$this->exec("mysql $this->credentials -e '$action database $this->newName;'"); |
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} |
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$this->exec("mysqldump $this->credentials $this->originalName | mysql $this->credentials $this->newName"); |
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} |
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/** |
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* Executes a shell command. |
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* |
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* @param string $command |
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* Command to execute. |
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* |
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* @return string |
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* Result of a shell command. |
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*/ |
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private function exec($command) |
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{ |
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$command = vsprintf($command, array_slice(func_get_args(), 1)); |
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if (method_exists($this->callee, 'debug')) { |
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call_user_func([$this->callee, 'debug'], [$command]); |
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} |
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return trim(shell_exec($command)); |
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} |
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} |
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BR0kEN- /
TqExtension
