} else {
                    $this->pdoStatement->execute();
                }
                break;
            } catch (\Exception $e) {
                $rawSql = $rawSql ?: $this->getRawSql();
                $e = $this->db->getSchema()->convertException($e, $rawSql);
                if ($this->_retryHandler === null || !call_user_func($this->_retryHandler, $e, $attempt)) {
                    throw $e;
                }
            }
        }
    }

 
        $this->prepare(true);
 
        try {
            $profile and Yii::beginProfile($rawSql, 'yii\db\Command::query');
 
            $this->internalExecute($rawSql);
 
            if ($method === '') {
                $result = new DataReader($this);
            } else {
                if ($fetchMode === null) {
                    $fetchMode = $this->fetchMode;

     * @return array all rows of the query result. Each array element is an array representing a row of data.
     * An empty array is returned if the query results in nothing.
     * @throws Exception execution failed
     */
    public function queryAll($fetchMode = null)
    {
        return $this->queryInternal('fetchAll', $fetchMode);
    }
 
    /**
     * Executes the SQL statement and returns the first row of the result.
     * This method is best used when only the first row of result is needed for a query.
     * @param int $fetchMode the result fetch mode. Please refer to [PHP manual](https://secure.php.net/manual/en/pdostatement.setfetchmode.php)

     * @throws \Exception if DB query fails
     */
    protected function findColumns($table)
    {
        $sql = 'SHOW FULL COLUMNS FROM ' . $this->quoteTableName($table->fullName);
        try {
            $columns = $this->db->createCommand($sql)->queryAll();
        } catch (\Exception $e) {
            $previous = $e->getPrevious();
            if ($previous instanceof \PDOException && strpos($previous->getMessage(), 'SQLSTATE[42S02') !== false) {
                // table does not exist
                // https://dev.mysql.com/doc/refman/5.5/en/error-messages-server.html#error_er_bad_table_error
                return false;

     */
    protected function loadTableSchema($name)
    {
        $table = new TableSchema();
        $this->resolveTableNames($table, $name);
 
        if ($this->findColumns($table)) {
            $this->findConstraints($table);
            return $table;
        }
 
        return null;
    }

        }
        $rawName = $this->getRawTableName($name);
        if (!isset($this->_tableMetadata[$rawName])) {
            $this->loadTableMetadataFromCache($cache, $rawName);
        }
        if ($refresh || !array_key_exists($type, $this->_tableMetadata[$rawName])) {
            $this->_tableMetadata[$rawName][$type] = $this->{'loadTable' . ucfirst($type)}($rawName);
            $this->saveTableMetadataToCache($cache, $rawName);
        }
 
        return $this->_tableMetadata[$rawName][$type];
    }
 

     * @param string $name table name. The table name may contain schema name if any. Do not quote the table name.
     * @param bool $refresh whether to reload the table schema even if it is found in the cache.
     * @return TableSchema|null table metadata. `null` if the named table does not exist.
     */
    public function getTableSchema($name, $refresh = false)
    {
        return $this->getTableMetadata($name, 'schema', $refresh);
    }
 
    /**
     * Returns the metadata for all tables in the database.
     * @param string $schema the schema of the tables. Defaults to empty string, meaning the current or default schema name.
     * @param bool $refresh whether to fetch the latest available table schemas. If this is `false`,

     * @throws InvalidConfigException if the table for the AR class does not exist.
     */
    public static function getTableSchema()
    {
        $tableSchema = static::getDb()
            ->getSchema()
            ->getTableSchema(static::tableName());
 
        if ($tableSchema === null) {
            throw new InvalidConfigException('The table does not exist: ' . static::tableName());
        }
 
        return $tableSchema;

     * Note that an array should be returned even for a table with single primary key.
     *
     * @return string[] the primary keys of the associated database table.
     */
    public static function primaryKey()
    {
        return static::getTableSchema()->primaryKey;
    }
 
    /**
     * Returns the list of all attribute names of the model.
     * The default implementation will return all column names of the table associated with this AR class.
     * @return array list of attribute names.

    protected static function findByCondition($condition)
    {
        $query = static::find();
 
        if (!ArrayHelper::isAssociative($condition) && !$condition instanceof ExpressionInterface) {
            // query by primary key
            $primaryKey = static::primaryKey();
            if (isset($primaryKey[0])) {
                $pk = $primaryKey[0];
                if (!empty($query->join) || !empty($query->joinWith)) {
                    $pk = static::tableName() . '.' . $pk;
                }
                // if condition is scalar, search for a single primary key, if it is array, search for multiple primary key values

    /**
     * {@inheritdoc}
     * @return static|null ActiveRecord instance matching the condition, or `null` if nothing matches.
     */
    public static function findOne($condition)
    {
        return static::findByCondition($condition)->one();
    }
 
    /**
     * {@inheritdoc}
     * @return static[] an array of ActiveRecord instances, or an empty array if nothing matches.
     */

     */
    public function __construct($config = [])
    {
        if (!empty($config)) {
            Yii::configure($this, $config);
        }
        $this->init();
    }
 
    /**
     * Initializes the object.
     * This method is invoked at the end of the constructor after the object is initialized with the
     * given configuration.

     * @param array $config name-value pairs that will be used to initialize the object properties.
     */
    public function __construct($id, $module, $config = [])
    {
        $this->id = $id;
        $this->module = $module;
        parent::__construct($config);
    }
 
    /**
     * {@inheritdoc}
     * @since 2.0.36
     */

 
        $dependencies = $this->resolveDependencies($dependencies, $reflection);
        if (!$reflection->isInstantiable()) {
            throw new NotInstantiableException($reflection->name);
        }
        if (empty($config)) {
            return $reflection->newInstanceArgs($dependencies);
        }
 
        $config = $this->resolveDependencies($config);
 
        if (!empty($dependencies) && $reflection->implementsInterface('yii\base\Configurable')) {
            // set $config as the last parameter (existing one will be overwritten)

            $class = $class->id;
        }
        if (isset($this->_singletons[$class])) {
            // singleton
            return $this->_singletons[$class];
        } elseif (!isset($this->_definitions[$class])) {
            return $this->build($class, $params, $config);
        }
 
        $definition = $this->_definitions[$class];
 
        if (is_callable($definition, true)) {
            $params = $this->resolveDependencies($this->mergeParams($class, $params));

     * @throws InvalidConfigException if the configuration is invalid.
     * @see \yii\di\Container
     */
    public static function createObject($type, array $params = [])
    {
        if (is_string($type)) {
            return static::$container->get($type, $params);
        }
 
        if (is_callable($type, true)) {
            return static::$container->invoke($type, $params);
        }
 

        $className = ltrim($this->controllerNamespace . '\\' . str_replace('/', '\\', $prefix) . $className, '\\');
        if (strpos($className, '-') !== false || !class_exists($className)) {
            return null;
        }
 
        if (is_subclass_of($className, 'yii\base\Controller')) {
            $controller = Yii::createObject($className, [$id, $this]);
            return get_class($controller) === $className ? $controller : null;
        } elseif (YII_DEBUG) {
            throw new InvalidConfigException('Controller class must extend from \\yii\\base\\Controller.');
        }
 
        return null;

 
        if (($pos = strrpos($route, '/')) !== false) {
            $id .= '/' . substr($route, 0, $pos);
            $route = substr($route, $pos + 1);
        }
 
        $controller = $this->createControllerByID($id);
        if ($controller === null && $route !== '') {
            $controller = $this->createControllerByID($id . '/' . $route);
            $route = '';
        }
 
        return $controller === null ? false : [$controller, $route];

        if (isset($this->controllerMap[$id])) {
            $controller = Yii::createObject($this->controllerMap[$id], [$id, $this]);
            return [$controller, $route];
        }
        $module = $this->getModule($id);
        if ($module !== null) {
            return $module->createController($route);
        }
 
        if (($pos = strrpos($route, '/')) !== false) {
            $id .= '/' . substr($route, 0, $pos);
            $route = substr($route, $pos + 1);
        }

     * @param array $params the parameters to be passed to the action
     * @return mixed the result of the action.
     * @throws InvalidRouteException if the requested route cannot be resolved into an action successfully.
     */
    public function runAction($route, $params = [])
    {
        $parts = $this->createController($route);
        if (is_array($parts)) {
            /* @var $controller Controller */
            list($controller, $actionID) = $parts;
            $oldController = Yii::$app->controller;
            Yii::$app->controller = $controller;
            $result = $controller->runAction($actionID, $params);

            $params = $this->catchAll;
            unset($params[0]);
        }
        try {
            Yii::debug("Route requested: '$route'", __METHOD__);
            $this->requestedRoute = $route;
            $result = $this->runAction($route, $params);
            if ($result instanceof Response) {
                return $result;
            }
 
            $response = $this->getResponse();
            if ($result !== null) {

    {
        try {
            $this->state = self::STATE_BEFORE_REQUEST;
            $this->trigger(self::EVENT_BEFORE_REQUEST);
 
            $this->state = self::STATE_HANDLING_REQUEST;
            $response = $this->handleRequest($this->getRequest());
 
            $this->state = self::STATE_AFTER_REQUEST;
            $this->trigger(self::EVENT_AFTER_REQUEST);
 
            $this->state = self::STATE_SENDING_RESPONSE;
            $response->send();