@DiaTMss

Как сократить дублирование кода?

Доброго времени суток. Если наследование уже использовано, возможно ли не дублировать код? 2 день как пересел с процедурного стиля

Дубли:
private function isAjax()
        {
            return (isset($_SERVER['HTTP_X_REQUESTED_WITH']) && !empty($_SERVER['HTTP_X_REQUESTED_WITH'])) ? true : false;
        }
$vGetMenu = parent::selectMenu();

            $uri = $_SERVER['REQUEST_URI'];

protected function selectMenu()
        {
            return parent::selectDbh("SELECT `id_menu`, `text_menu`, `path_menu` FROM `menu`  WHERE `power_menu` = 'on' ORDER BY `position_menu` ASC");
        }


<?php

    require_once 'config/config.php';

    spl_autoload_register(function ($class)
    {
        if (file_exists(__DIR__ . '/controllers/' . $class . '.php')) require_once __DIR__ . '/controllers/' . $class . '.php';
        else if(file_exists(__DIR__ . '/models/' . $class . '.php')) require_once __DIR__ . '/models/' . $class . '.php';
    });

    $route  = new Route();

    $route->get('/', function() use ($dsn, $user, $pass, $attribute)
    {
        new Home($dsn, $user, $pass, $attribute);
    });

    $route->get('/albums', function() use ($dsn, $user, $pass, $attribute)
    {
        new Albums($dsn, $user, $pass, $attribute);
    });

    $route->get('/contact', function() use ($dsn, $user, $pass, $attribute)
    {
        new Contact($dsn, $user, $pass, $attribute);
    });

    $route->run();


<?php

    class Route
    {
        protected $routes = [];
        protected $uri;
        protected $method;
        protected $action = null;
        protected $params = [];

        private function getUri()
        {
            return '/' . trim($_SERVER['REQUEST_URI'], '/');
        }

        private function getMethod()
        {
            return $_SERVER['REQUEST_METHOD'];
        }

        private function addRoute($method, $uri, $action)
        {
            $uri = '/' . trim($uri, '/');

            $this->routes[$method][] = ['uri' => $uri, 'action' => $action];
        }

        public function get($uri, $action)
        {
            $this->addRoute('GET', $uri, $action);
        }

        public function post($uri, $action)
        {
            $this->addRoute('POST', $uri, $action);
        }

        private function handle()
        {
            if (is_callable($this->action) && !is_null($this->action))
            {
                call_user_func_array($this->action, $this->params);
            }

            else
            {
                header("HTTP/1.0 404 Not Found");
                exit;
            }
        }

        public function run()
        {
            $this->uri    = $this->getUri();
            $this->method = $this->getMethod();

            foreach ($this->routes[$this->method] as $route)
            {
                if ($route['uri'] === $this->uri)
                {
                    $this->action = $route['action'];
                }

                else if (preg_match('#^' . $route['uri'] . '$#i', $this->uri, $matches))
                {
                    $matches = array_slice($matches, 1);

                    $this->action = $route['action'];
                    $this->params = $matches;
                }
            }

            $this->handle();
        }
    }


<?php

    class Home extends ModelHome
    {
        public function __construct($dsn, $user, $pass, $attribute)
        {
            parent::__construct($dsn, $user, $pass, $attribute);

            $this->homePage();
        }

        private function isAjax()
        {
            return (isset($_SERVER['HTTP_X_REQUESTED_WITH']) && !empty($_SERVER['HTTP_X_REQUESTED_WITH'])) ? true : false;
        }

        private function homePage()
        {
            $vGetAlbumsPreview = parent::selectAlbumsPreview();
            $vGetMenu = parent::selectMenu();

            $uri = $_SERVER['REQUEST_URI'];

            if ($this->isAjax()) $template = ['slider', 'album', 'event', 'video', 'gallery', 'news'];
            else $template = ['header', 'slider', 'album', 'event', 'video', 'gallery', 'news', 'footer'];

            require_once '../app/views/index.php';
        }
    }


<?php

    class Albums extends ModelAlbums
    {
        public function __construct($dsn, $user, $pass, $attribute)
        {
            parent::__construct($dsn, $user, $pass, $attribute);

            $this->albumsPage();
        }

        private function isAjax()
        {
            return (isset($_SERVER['HTTP_X_REQUESTED_WITH']) && !empty($_SERVER['HTTP_X_REQUESTED_WITH'])) ? true : false;
        }

        private function albumsPage()
        {
            $vGetAlbums = parent::selectAlbums();
            $vGetMenu = parent::selectMenu();

            $uri = $_SERVER['REQUEST_URI'];

            if ($this->isAjax()) $template = ['albums_content'];
            else $template = ['header', 'albums_content', 'footer'];

            require_once '../app/views/index.php';
        }
    }


<?php

    class ModelHome extends Model
    {
        public function __construct($dsn, $user, $pass, $attribute)
        {
            parent::__construct($dsn, $user, $pass, $attribute);
        }

        protected function selectAlbumsPreview()
        {
            return parent::selectDbh("SELECT albums.album_id, 
							albums.album_cover, 
							albums.album_name, 
							albums.album_artist FROM albums, bits WHERE albums.album_id = bits.bits_album_id GROUP BY bits.bits_album_id ORDER BY `album_id` DESC LIMIT 3");
        }

        protected function selectMenu()
        {
            return parent::selectDbh("SELECT `id_menu`, `text_menu`, `path_menu` FROM `menu`  WHERE `power_menu` = 'on' ORDER BY `position_menu` ASC");
        }
    }


<?php

    class ModelAlbums extends Model
    {
        public function __construct($dsn, $user, $pass, $attribute)
        {
            parent::__construct($dsn, $user, $pass, $attribute);
        }

        protected function selectAlbums()
        {
            return parent::selectDbh("SELECT albums.album_id,
							albums.album_cover, 
							albums.album_name, 
							albums.album_artist FROM albums, bits WHERE albums.album_id = bits.bits_album_id GROUP BY bits.bits_album_id ORDER BY `album_id` DESC");
        }

        protected function selectMenu()
        {
            return parent::selectDbh("SELECT `id_menu`, `text_menu`, `path_menu` FROM `menu`  WHERE `power_menu` = 'on' ORDER BY `position_menu` ASC");
        }
    }


<?php

    class Model
    {
        private $dbh;

        public function __construct($dsn, $user, $pass, $attribute)
        {
            try
            {
                $this->dbh = new PDO($dsn, $user, $pass, $attribute);
            }

            catch (PDOException $e)
            {
                echo "Error!: " . $e->getMessage();
                exit;
            }
        }

        protected function selectDbh($sql, $params = [])
        {
            $stmt = $this->dbh->prepare($sql);

            $stmt->execute();

            if ($stmt->rowCount() > 0) return $stmt->fetchAll(PDO::FETCH_ASSOC);
            else return false;
        }

        protected function insertDbh($sql, $params = [])
        {

        }

        protected function updateDbh($sql, $params = [])
        {

        }

        protected function deleteDbh($sql, $params = [])
        {

        }
    }
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Решения вопроса 1
SilenceOfWinter
@SilenceOfWinter Куратор тега PHP
та еще зажигалка...
Почитай о парадигме SOLID. Если коротко, то данный функционал нужно вынести в отдельный класс.
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