大家好!我认为是时候展示 PHP 飞行框架中添加的一些新功能了。今年早些时候,Flight Mike Cao 的原始创建者慷慨地提出将 mikecao/flight 的所有权转让给一个新的 Flight PHP 组织。自从它被移动以来,我们添加了中间件、路由分组、DIC 和其他功能等功能。这篇文章会有点长,但这只是因为我包含了很多代码示例,这样您就可以了解如何构建博客的正确上下文。
首先,让我们解决这个问题。 Flight 是一个带有一些花哨功能的简单框架。它不会与 Laravel 或 Symfony 或 Yii 或 Cake 或 [填空] 竞争。该框架实际上是针对简单到中型项目而构建的。它还迎合了那些不喜欢代码中难以理解或难以训练的“魔法”的人。它更适合那些刚刚开始涉足框架的开发人员,而不是带有大量随机包含语句的原始 PHP。
很多很酷的功能,很好的简单实现,等等等等,这是代码。请前往第 2 部分了解精彩内容!
让我们使用 Composer 来开始这个聚会吧。
要做的第一件事是转到 app/config/config.php 文件,我们可以在其中放置任何配置,例如 API 密钥、数据库凭据和应用程序的其他重要凭据。对于本博客,我们将取消 SQLite 数据库路径的 file_path 行的注释:
Flight 现在附带一个名为 runway 的命令行实用程序。这允许您为 Flight 插件甚至您自己的项目创建自定义命令。
作为骨架的一部分,它附带了一个 SampleDatabaseCommand,它将为我们正在创建的这个博客项目提供一个起点。
运行以下命令,它应该会为您填充您的数据库!
接下来我们将打开 app/config/services.php 文件并取消注释 SQLite 行。
为了确保我们已正确设置所有内容,请运行composer start,然后在浏览器中访问http://localhost:8000/。您应该看到以下屏幕:
您还会注意到角落里有一个方便的调试工具栏,其中包含一些自定义的 Flight 面板,可帮助您了解应用程序中发生的情况。如果您将鼠标悬停在工具栏中的各个项目上,您将看到各种悬停,您可以单击这些悬停以保持页面上的粘性(稍后会详细介绍)。
Flight 框架中确实附带了一个非常基本的 HTML 模板解决方案。这对于非常简单的网站或者只是返回一段简单的 HTML 来说就很好了。建议使用其他模板平台,例如 Latte、Twig 或 Blade。在本教程中,我们将使用 Latte,因为它非常棒并且没有依赖项(您会在 Flight 中注意到我们不喜欢不必要的依赖项)!
继续安装Latte
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$ php runway make:record comments
Flight uses the MVC pattern. In order to create a new page you need to define a route in your routes.php file, create a new method in a controller, and then create the HTML file that the browser will serve. You can use runway to help you get started with a new controller class:
php runway make:controller Home
And you should see something similar to the following:
$ php runway make:controller Home Controller successfully created at app/controllers/HomeController.php
If you go to app/controllers/HomeController.php go ahead and add this new method to your HomeController:
/** * Index * * @return void */ public function index(): void { $this->app->render('home.latte', [ 'page_title' => 'Home' ]); }
And create a new file in app/views/home.latte and put in this code:
{extends 'layout.latte'} {block content}My Home Page
{/block}
Finally let's change up the routes to the routes.php file. Go ahead and remove any code in the routes file that begins with $router-> and add a new route for your home router:
$router->get('/', \app\controllers\HomeController::class . '->index');
Make sure you run composer start so that your development server is up. If you go to http://localhost:8000/ in your browser, you should see something like this!
Now we're cookin'!
Let's go ahead and add all the methods in your controller, routes, and html files. Let's start with adding the routes in your routes.php file:
// Blog $router->group('/blog', function(Router $router) { // Posts $router->get('', \app\controllers\PostController::class . '->index'); $router->get('/create', \app\controllers\PostController::class . '->create'); $router->post('', \app\controllers\PostController::class . '->store'); $router->get('/@id', \app\controllers\PostController::class . '->show'); $router->get('/@id/edit', \app\controllers\PostController::class . '->edit'); $router->post('/@id/edit', \app\controllers\PostController::class . '->update'); $router->get('/@id/delete', \app\controllers\PostController::class . '->destroy'); });
So you'll notice we use a group() method here to group all the routes together that start with /blog. We could actually rewrite the routes like the following with the group() method and the same thing would happen:
// Posts $router->get('/blog', \app\controllers\PostController::class . '->index'); $router->get('/blog/create', \app\controllers\PostController::class . '->create');
With the controller, first let's create an empty controller with runway:
php runway make:controller Post
You can copy the code below for your PostController.php:
app = $app; } /** * Index * * @return void */ public function index(): void { $PostRecord = new PostRecord($this->app->db()); $posts = $PostRecord->order('id DESC')->findAll(); $CommentRecord = new CommentRecord($this->app->db()); foreach($posts as &$post) { $post->comments = $CommentRecord->eq('post_id', $post->id)->findAll(); } $this->app->render('posts/index.latte', [ 'page_title' => 'Blog', 'posts' => $posts]); } /** * Create * * @return void */ public function create(): void { $this->app->render('posts/create.latte', [ 'page_title' => 'Create Post']); } /** * Store * * @return void */ public function store(): void { $postData = $this->app->request()->data; $PostRecord = new PostRecord($this->app->db()); $PostRecord->title = $postData->title; $PostRecord->content = $postData->content; $PostRecord->username = $postData->username; $PostRecord->created_at = gmdate('Y-m-d H:i:s'); $PostRecord->updated_at = null; $PostRecord->save(); $this->app->redirect('/blog'); } /** * Show * * @param int $id The ID of the post * @return void */ public function show(int $id): void { $PostRecord = new PostRecord($this->app->db()); $post = $PostRecord->find($id); $CommentRecord = new CommentRecord($this->app->db()); $post->comments = $CommentRecord->eq('post_id', $post->id)->findAll(); $this->app->render('posts/show.latte', [ 'page_title' => $post->title, 'post' => $post]); } /** * Edit * * @param int $id The ID of the post * @return void */ public function edit(int $id): void { $PostRecord = new PostRecord($this->app->db()); $post = $PostRecord->find($id); $this->app->render('posts/edit.latte', [ 'page_title' => 'Update Post', 'post' => $post]); } /** * Update * * @param int $id The ID of the post * @return void */ public function update(int $id): void { $postData = $this->app->request()->data; $PostRecord = new PostRecord($this->app->db()); $PostRecord->find($id); $PostRecord->title = $postData->title; $PostRecord->content = $postData->content; $PostRecord->username = $postData->username; $PostRecord->updated_at = gmdate('Y-m-d H:i:s'); $PostRecord->save(); $this->app->redirect('/blog'); } /** * Destroy * * @param int $id The ID of the post * @return void */ public function destroy(int $id): void { $PostRecord = new PostRecord($this->app->db()); $post = $PostRecord->find($id); $post->delete(); $this->app->redirect('/blog'); } }
Let's kill some time and talk about a few things that are going on in the controller.
First off we are now using our new active record classes:
$PostRecord = new PostRecord($this->app->db()); $posts = $PostRecord->order('id DESC')->findAll();
We are injecting the database we setup in the services.php file above with $this->app->db();. Technically we could also just use Flight::db() as this points to the global $app variable.
Active Record classes are really helpful to simplify interactions with a database. We could rewrite the above in the following code:
$posts = $this->app->db()->fetchAll("SELECT * FROM posts ORDER BY id DESC");
This might not be the best example of how helpful an active record could be. But in part 2 I'll show you some hidden gems inside these classes that make it so much better than writing raw SQL.
Now let's talk HTML files. Here are the files we'll need for the post routes:
app/views/posts/index.latte
{extends '../layout.latte'} {block content}My Amazing Blog
Welcome to my blog!
{foreach $posts as $post} {first}Recent Posts
{/first}
{$post->title}
By: {$post->username} on {$post->created_at|date:'d.m.Y G:i a'}
Comments: {count($post->comments)}
{$post->content|truncate:100}
Update - Delete {/foreach} {/block}
app/views/posts/show.latte
{extends '../layout.latte'} {block content} < Back to blog{/block}{$post->title}
Created by: {$post->username} on {$post->created_at|date:'d.m.Y G:i a'}.
{$post->content|breakLines}Last update: {$post->update_at|date:'d.m.Y G:i a'}.
Comments
{foreach $post->comments as $comment}{else}{$comment->username} on {$comment->created_at|date:'d.m.Y G:i a'}.
{$comment->content|breakLines}
DeleteNo comments yet.
{/foreach}Add comment
app/views/posts/create.latte
{extends '../layout.latte'} {block content}{/block}Create a Post
app/views/posts/edit.latte
{extends '../layout.latte'} {block content}{/block}Update a Post
Now that we've got all the pieces in place, you should be able to load up your blog page, create a new post, see a post, and delete a post. You may have noticed we've included a comment form but the form doesn't actually work. We can fix that real quick! Let's create a controller with runway:
php runway make:controller Comment
Now you can make the CommentController.php look like the following:
app = $app; } /** * Store * * @param int $id The post ID * * @return void */ public function store(int $id): void { $postData = $this->app->request()->data; $CommentRecord = new CommentRecord($this->app->db()); $CommentRecord->post_id = $id; $CommentRecord->username = $postData->username; $CommentRecord->content = $postData->content; $CommentRecord->created_at = gmdate('Y-m-d H:i:s'); $CommentRecord->updated_at = null; $CommentRecord->save(); $this->app->redirect('/blog/' . $id); } /** * Destroy * * @param int $id The post ID * @param int $comment_id The comment ID * * @return void */ public function destroy(int $id, int $comment_id): void { $CommentRecord = new CommentRecord($this->app->db()); $CommentRecord->find($comment_id); $CommentRecord->delete(); $this->app->redirect('/blog/' . $id); } }
Now let's add a couple other routes in the group chunk of code in routes.php
// Blog $router->group('/blog', function(Router $router) { // Posts // post routes... // Comments $router->post('/@id/comment', \app\controllers\CommentController::class . '->store'); $router->get('/@id/comment/@comment_id/delete', \app\controllers\CommentController::class . '->destroy'); });
With these two additions to the code, you have a fully functioning blog built with Flight! This got the job done and you now have a blog, but the code is somewhat clunky and could be improved to have some pretty nifty features like middleware, permissions, and writing less code! Hop over to part 2
Go ahead and leave any questions in comments below or join us in the chatroom!
If you want to see the final product with all the improvements here's the code!
以上是使用 Flight 构建简单的博客 - 第 1 部分的详细内容。更多信息请关注PHP中文网其他相关文章!