Controller 控制器代码src/Controller/BlogController.php at line 50

/**
 * @Route("/", defaults={"page": "1", "_format"="html"}, methods="GET", name="blog_index")
 * @Route("/rss.xml", defaults={"page": "1", "_format"="xml"}, methods="GET", name="blog_rss")
 * @Route("/page/{page<[1-9]\d*>}", defaults={"_format"="html"}, methods="GET", name="blog_index_paginated")
 * @Cache(smaxage="10")
 *
 * NOTE: For standard formats, Symfony will also automatically choose the best
 * Content-Type header for the response.
 * See https://symfony.com/doc/current/routing.html#special-parameters
 */
public function index(Request $request, int $page, string $_format, PostRepository $posts, TagRepository $tags): Response
{
    $tag = null;
    if ($request->query->has('tag')) {
        $tag = $tags->findOneBy(['name' => $request->query->get('tag')]);
    }
    $latestPosts = $posts->findLatest($page, $tag);

    // Every template name also has two extensions that specify the format and
    // engine for that template.
    // See https://symfony.com/doc/current/templates.html#template-naming
    return $this->render('blog/index.'.$_format.'.twig', [
        'paginator' => $latestPosts,
        'tagName' => $tag ? $tag->getName() : null,
    ]);
}

Twig 模板代码templates/blog/index.html.twig at line 1

{% extends 'base.html.twig' %}

{% block body_id 'blog_index' %}

{% block main %}
    {% for post in paginator.results %}
        <article class="post">
            <h2>
                <a href="{{ path('blog_post', {slug: post.slug}) }}">
                    {{ post.title }}
                </a>
            </h2>

            <p class="post-metadata">
                <span class="metadata"><i class="fa fa-calendar"></i> {{ post.publishedAt|format_datetime('long', 'medium', '', 'UTC') }}</span>
                <span class="metadata"><i class="fa fa-user"></i> {{ post.author.fullName }}</span>
            </p>

            <p>{{ post.summary }}</p>

            {{ include('blog/_post_tags.html.twig') }}
        </article>
    {% else %}
        <div class="well">{{ 'post.no_posts_found'|trans }}</div>
    {% endfor %}

    {% if paginator.hasToPaginate %}
        <div class="navigation text-center">
            <ul class="pagination">
                {% if paginator.hasPreviousPage %}
                    <li class="prev"><a href="{{ path('blog_index_paginated', {page: paginator.previousPage, tag: tagName}) }}" rel="previous"><i class="fa fw fa-long-arrow-left"></i> {{ 'paginator.previous'|trans }}</a></li>
                {% else %}
                    <li class="prev disabled"><span><i class="fa fw fa-arrow-left"></i> {{ 'paginator.previous'|trans }}</span></li>
                {% endif %}

                {% for i in 1..paginator.lastPage %}
                    {% if i == paginator.currentPage %}
                        <li class="active"><span>{{ i }} <span class="sr-only">{{ 'paginator.current'|trans }}</span></span></li>
                    {% else %}
                        <li><a href="{{ path('blog_index_paginated', {page: i, tag: tagName}) }}">{{ i }}</a></li>
                    {% endif %}
                {% endfor %}

                {% if paginator.hasNextPage %}
                    <li class="next"><a href="{{ path('blog_index_paginated', {page: paginator.nextPage, tag: tagName}) }}" rel="next">{{ 'paginator.next'|trans }} <i class="fa fw fa-arrow-right"></i></a></li>
                {% else %}
                    <li class="next disabled"><span>{{ 'paginator.next'|trans }} <i class="fa fw fa-arrow-right"></i></span></li>
                {% endif %}
            </ul>
        </div>
    {% endif %}
{% endblock %}

{% block sidebar %}
    {{ parent() }}

    {{ show_source_code(_self) }}
    {{ include('blog/_rss.html.twig') }}
{% endblock %}