[英]Symfony2 - Setting up service error with undefined getDoctrine()
我正在尝试将搜索功能设置为服务。 我的代码在下面,提交搜索词时出现以下错误:
FatalErrorException:错误:调用/var/www/html/Project/src/Acme/ProjectBundle/Services/Search.php第24行中未定义的方法Acme \\ ProjectBundle \\ Services \\ Search :: getDoctrine()
我需要以某种方式注入学说吗?
config.yml
services:
search:
class: Acme\ProjectBundle\Services\Search
arguments: ["@request_stack"]
scope: request
IndexAction控制器
$query = $this->get('search');
$results = $query->search();
return $this->render('AcmeProjectBundle:Default:index.html.twig, array(
'query' => $query,
'results => $results,
));
搜索服务
class Search
{
private $request;
public function __construct(RequestStack $requestStack)
{
$this->request = $requestStack->getCurrentRequest();
}
public function search()
{
$results = null;
$query = $this->request->query->get('q');
if (!empty($query)) {
$em = $this->getDoctrine()->getManager();
$results = $em->createQueryBuilder()
->from('AcmeProjectBundle:Blog', 'b')
->select('b')
->where('b.title LIKE :search')
->setParameter(':search', "%${query}%")
->getQuery()
->getResult();
}
// exit(\Doctrine\Common\Util\Debug::dump($em));
return array(
'query' => $query,
'results' => $results,
);
}
}
index.html.twig
{% block search %}
<form action="{{ path('acme_project_search') }}" method="GET">
<label><input type="search" name="q" value={{ app.request.query.get('q') }}></label>
<input type="submit" value="Search">
</form>
<br>
{% endblock %}
{% for result in query %}
<div class="container">
<div class="row">
<div class="col-sm-8 blog-main">
<div class="blog-post">
<h2 class="blog-post-title">{{ result.title }}</h2>
<p class="blog-post-meta"><time datetime="{{ result.created|date('c') }}">{{ result.created|date('l, F j, Y') }}</time> by <a href="#">{{ result.author }}</a></p>
<p>{{ result.blog|truncate(350, true) }}</p><br>
<div class="tags">
<p><strong>Tags: </strong><span class="highlight">{{ result.tags }}</span></p>
</div>
</div><!-- /.blog-post -->
</div>
</div>
</div>
{% endfor %}
是的,您需要“手动”注入学说。 您的服务定义应如下所示:
services:
search:
class: Acme\ProjectBundle\Services\Search
arguments: ["@request_stack", @doctrine]
scope: request
您的构造函数应如下所示:
use Doctrine\Bundle\DoctrineBundle\Registry;
public function __construct(RequestStack $requestStack, Registry $doctrine)
{
$this->request = $requestStack->getCurrentRequest();
$this->doctrine = $doctrine;
}
然后可以在search
方法中使用它:
public function search()
{
(...)
$em = $this->doctrine->getManager()
}
注意:您尝试使用的$this->getDoctrine()
方法是Symfony\\Bundle\\FrameworkBundle\\Controller
类的一种方法,您可能已经习惯于从控制器使用它,但是您需要使用自己的服务将doctrine
作为依赖
您需要使容器将EntityManager
注入服务。
services:
search:
class: Acme\ProjectBundle\Services\Search
arguments: ["@request_stack","@doctrine.orm.entity_manager"]
scope: request
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