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这是一个使用Symfony框架构建的 示例应用 , 用以介绍开发Symfony应用的推荐方式.
了解更多信息, 请查看 Symfony 文档 .
点击按钮来展示渲染此页面的 Controller 控制器 和 Twig 模板 的源代码.
src/Controller/BlogController.php at line 81
/**
* NOTE: when the controller argument is a Doctrine entity, Symfony makes an
* automatic database query to fetch it based on the value of the route parameters.
* The '{slug:post}' configuration tells Symfony to use the 'slug' route
* parameter in the database query that fetches the entity of the $post argument.
* This is mostly useful when the route has multiple parameters and the controller
* also has multiple arguments.
* See https://symfony.com/doc/current/doctrine.html#automatically-fetching-objects-entityvalueresolver.
*/
#[Route('/posts/{slug:post}', name: 'blog_post', requirements: ['slug' => Requirement::ASCII_SLUG], methods: ['GET'])]
public function postShow(Post $post): Response
{
// Symfony's 'dump()' function is an improved version of PHP's 'var_dump()' but
// it's not available in the 'prod' environment to prevent leaking sensitive information.
// It can be used both in PHP files and Twig templates, but it requires to
// have enabled the DebugBundle. Uncomment the following line to see it in action:
//
// dump($post, $this->getUser(), new \DateTime());
//
// The result will be displayed either in the Symfony Profiler or in the stream output.
// See https://symfony.com/doc/current/profiler.html
// See https://symfony.com/doc/current/templates.html#the-dump-twig-utilities
//
// You can also leverage Symfony's 'dd()' function that dumps and
// stops the execution
return $this->render('blog/post_show.html.twig', ['post' => $post]);
}
templates/blog/post_show.html.twig at line 1
{% extends 'base.html.twig' %}
{% block body_id 'blog_post_show' %}
{% block main %}
<h1>{{ post.title }}</h1>
<p class="post-metadata">
<span class="metadata">{{ component('ux:icon', { name: 'tabler:calendar-month' }) }} {{ post.publishedAt|format_datetime('long', 'medium', '', 'UTC') }}</span>
<span class="metadata">{{ component('ux:icon', { name: 'tabler:user' }) }} {{ post.author.fullName }}</span>
</p>
{{ post.content|markdown_to_html|sanitize_html }}
{{ include('blog/_post_tags.html.twig') }}
<div id="post-add-comment" class="well">
{# The 'IS_AUTHENTICATED_FULLY' role ensures that the user has entered
their credentials (login + password) during this session. If they
are automatically logged via the 'Remember Me' functionality, they won't
be able to add a comment.
See https://symfony.com/doc/current/security/remember_me.html#forcing-the-user-to-re-authenticate-before-accessing-certain-resources
#}
{% if is_granted('IS_AUTHENTICATED_FULLY') %}
{# when the name of the Twig argument is the same as the name of the variable, you can omit it.
e.g. instead of controller('...', {post: post}) you can use controller('...', {post}) #}
{{ render(controller('App\\Controller\\BlogController::commentForm', {post})) }}
{% else %}
<p>
<a class="btn btn-success" href="{{ path('security_login', {'redirect_to': app.request.pathInfo}) }}">
{{ component('ux:icon', { name: 'tabler:login' }) }} {{ 'action.sign_in'|trans }}
</a>
{{ 'post.to_publish_a_comment'|trans }}
</p>
{% endif %}
</div>
<h3>
{{ component('ux:icon', { name: 'tabler:messages' }) }} {{ 'post.num_comments'|trans({ 'count': post.comments|length }) }}
</h3>
{% for comment in post.comments %}
<div class="row post-comment">
<a name="comment_{{ comment.id }}"></a>
<h4 class="col-sm-3">
<strong>{{ comment.author.fullName }}</strong> {{ 'post.commented_on'|trans }}
{# it's not mandatory to set the timezone in localizeddate(). This is done to
avoid errors when the 'intl' PHP extension is not available and the application
is forced to use the limited "intl polyfill", which only supports UTC and GMT #}
<strong>{{ comment.publishedAt|format_datetime('medium', 'short', '', 'UTC') }}</strong>
</h4>
<div class="col-sm-9">
{{ comment.content|markdown_to_html|sanitize_html }}
</div>
</div>
{% else %}
<div class="post-comment">
<p>{{ 'post.no_comments'|trans }}</p>
</div>
{% endfor %}
{% endblock %}
{% block sidebar %}
{% if is_granted('edit', post) %}
<div class="section">
<a class="btn btn-lg btn-block btn-success" href="{{ path('admin_post_edit', {id: post.id}) }}">
{{ component('ux:icon', { name: 'tabler:pencil' }) }} {{ 'action.edit_post'|trans }}
</a>
</div>
{% endif %}
{# the parent() function includes the contents defined by the parent template
('base.html.twig') for this block ('sidebar'). This is a very convenient way
to share common contents in different templates #}
{{ parent() }}
{{ show_source_code(_self) }}
{{ include('blog/_rss.html.twig') }}
{% endblock %}
John Doe 评论于 2025年8月27日 上午10:26
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