我有这个错误(在silex 2.0下):
app.php第88行中的UndefinedFunctionException:尝试从命名空间“SocialWall \ Controller”调用函数“postIndexArticle”。
in app.php line 88
at {closure}(object(Application)) in Container.php line 113
at Container->offsetGet('home.controller') in CallbackResolver.php line 55
at CallbackResolver->convertCallback('home.controller') in ServiceControllerResolver.php line 50
at ServiceControllerResolver->getController(object(Request)) in HttpKernel.php line 136
at HttpKernel->handleRaw(object(Request), '1') in HttpKernel.php line 68
at HttpKernel->handle(object(Request), '1', true) in Application.php line 496
at Application->handle(object(Request)) in Application.php line 477
at Application->run() in index.php line 17
我的app.php
<?php
use SocialWall\Controller;
$app['home.controller'] = function($app) {
return SocialWall\Controller\postIndexArticle($app);
};
我的route.php
<?php
// Home page
$app->get('/', 'home.controller')->bind('home');
HomeController.php
<?php
namespace SocialWall\Controller;
use Silex\Application;
use SocialWall\DAO\ArticleDAO;
function postIndexArticle(Application $app) {
return function() use ($app) {
return new $app['twig']->render('index.html.twig', array('articles' => $app['dao.article']->findAll()));
};
}
我需要帮助!
答案 0 :(得分:0)
你应该使用类而不是函数,我会使用
我的app.php
<?php
use SocialWall\Controller;
$app['home.controller'] = function($app) {
return SocialWall\Controller\HomeController($app);
};
我的route.php
<?php
// Home page
$app->get('/', 'home.controller:postIndexArticle')->bind('home');
Homecontroller.php
<?php
namespace SocialWall\Controller;
use Silex\Application;
use SocialWall\DAO\ArticleDAO;
class HomeController
{
protected $app;
public function __construct(Application $app)
{
$this->app= $app;
}
function postIndexArticle() {
return $this->app['twig']->render('index.html.twig', array('articles' => $this->app['dao.article']->findAll()));
}
}
不建议直接在任何地方使用$ app。你应该读一下DI。
答案 1 :(得分:0)
我尝试重新创建你的演示,它对我有用。我看到你按照这里显示的最后一个例子http://silex.sensiolabs.org/doc/master/providers/service_controller.html提到使用callables作为控制器:
// app.php
<?php
require_once __DIR__.'/vendor/autoload.php';
require_once 'HomeController.php';
$app = new Silex\Application();
$app['debug'] = true;
$app->register(new Silex\Provider\ServiceControllerServiceProvider());
$app->register(new Silex\Provider\TwigServiceProvider());
$app['home.controller'] = function($app) {
return \SocialWall\Controller\postIndexArticle($app);
};
// Home page
$app->get('/', 'home.controller')->bind('home');
$app->run();
然后控制器位于一个单独的文件中:
// HomeController.php
namespace SocialWall\Controller;
use Silex\Application;
function postIndexArticle(Application $app) {
return function() use ($app) {
return $app['twig']->createTemplate('test template')->render([]);
};
}
仅打印test template
。
所以我认为问题出在其中一个方面(或者两个方面):
您的postIndexArticle
内部可调用返回return new $app['twig']->render(...
这是不正确的。您不想在此处使用关键字new
,因为render()
方法只返回字符串模板。
我认为您要调用的app.php
或HomeController.php
中的命名空间有问题
$app['home.controller'] = function($app) {
return SocialWall\Controller\postIndexArticle($app);
};
因此,尝试使用绝对命名空间路径,就像我使用\SocialWall\Controller\postInd...