image - 带有 liipImagineBundle 的动态过滤器

Question

我正在使用 liipImagineBundle 并尝试将过滤器直接应用到 Controller 中。

在文档中，我发现了两个部分，其中解释了如何从 Controller 使用 liipImagineBundle。这个https://github.com/liip/LiipImagineBundle#using-the-controller-as-a-service

public function indexAction()
{
    // RedirectResponse object
    $imagemanagerResponse = $this->container
        ->get('liip_imagine.controller')
            ->filterAction(
                $this->getRequest(),
                'uploads/foo.jpg',      // original image you want to apply a filter to
                'my_thumb'              // filter defined in config.yml
    );

    // string to put directly in the "src" of the tag <img>
    $srcPath = $imagemanagerResponse->headers->get('location');

    // ..
}

和 https://github.com/liip/LiipImagineBundle/blob/master/Resources/doc/filters.md#dynamic-filters

public function filterAction(Request $request, $path, $filter)
{
$targetPath = $this->cacheManager->resolve($request, $path, $filter);
if ($targetPath instanceof Response) {
    return $targetPath;
}

$image = $this->dataManager->find($filter, $path);

$filterConfig = $this->filterManager->getFilterConfiguration();
$config = $filterConfig->get($filter);
$config['filters']['thumbnail']['size'] = array(300, 100);
$filterConfig->set($filter, $config);

$response = $this->filterManager->get($request, $filter, $image, $path);

if ($targetPath) {
    $response = $this->cacheManager->store($response, $targetPath, $filter);
}

return $response;
}

我按照“使用 Controller 作为服务”中的说明进行了测试，它可以工作，但我遇到的问题是我不知道如何访问过滤器设置来修改它。

liip_imagine:
driver:               gd
web_root:             %kernel.root_dir%/../web
data_root:            %kernel.root_dir%/../web
cache_mkdir_mode:     0777
cache_prefix:         /media/cache
cache:                web_path
cache_clearer:        true
data_loader:          filesystem
controller_action:    liip_imagine.controller:filterAction
formats:              []
filter_sets:
    my_thumb:
        filters:
            crop: { start: [0, 0], size: [200, 150] }
    my_paste:
        quality: 90
        filters:
            paste: { start: [30, 60], image: ../web/uploads/images/firma.jpg }

第二个，真的，我不明白他什么时候说“使用自定义数据加载器......”。

在示例中，他只修改了 ImagineController 类 (Liip\ImagineBundle\Controller) 中的 filteraction() 方法。我想知道如何动态修改该方法？例如来自我的 Controller indexAction()。

我也读过这篇文章 https://stackoverflow.com/questions/16166719/loading-your-custom-filters-with-liipimaginebundle其中@NSCoder 说“您可以使用内置过滤器并修改其配置。”但我不明白。

我已经找了好几天了，但我还没有找到一个可以开始的例子。

Answer 1

寻找更多我发现了另一个 LiipImagineBundle 主题 (Use LiipImagineBundle to Resize Image after Upload?)，它帮助我做我想做的事。

在这里我留下我用来动态应用过滤器的代码

public function indexAction()
{

    $container = $this->container;

    # The controller service
    $imagemanagerResponse = $container->get('liip_imagine.controller');

    # The filter configuration service
    $filterConfiguration = $container->get('liip_imagine.filter.configuration');

    # Get the filter settings
    $configuracion = $filterConfiguration->get('my_thumb');

    # Update filter settings
    $configuracion['filters']['crop']['size'] = array(50, 150);
    $configuracion['filters']['crop']['start'] = array(10, 10);
    $filterConfiguration->set('my_thumb', $configuracion);

    # Apply the filter
    $imagemanagerResponse->filterAction($this->getRequest(),'uploads/images/logo.jpg','my_thumb');

    # Move the img from temp
    $fileTemporal = new File('media/cache/my_thumb/uploads/images/logo.jpg');

    $fileTemporal->move('uploads/images/', 'mini-logo.jpg');

    ####################################

}