Use LiipImagineBundle to Resize Image after Upload?

Question

I\'m using the LiipImagineBundle with Symfony 2.1 and would like to resize user uploaded images upon upload before saving them to the permanent filesystem location (to strip

Answer 1

Modified version of @Peter Wooster, and made it more generic so if someone is using it without Image entity he/she can easily take benifet from it. I'm giving here two versions, one that can be used kept in utility or non-controller class. And the other version is for controller classes. It's up to you now where you like :)

To use outside of controller e.g. keeping it in utility classes

/**
 * Write a thumbnail image using the LiipImagineBundle
 * 
 * @param Document $fullSizeImgWebPath path where full size upload is stored e.g. uploads/attachments
 * @param string $thumbAbsPath full absolute path to attachment directory e.g. /var/www/project1/images/thumbs/
 * @param string $filter filter defined in config e.g. my_thumb
 * @param Object $diContainer Dependency Injection Object, if calling from controller just pass $this
 */
public function writeThumbnail($fullSizeImgWebPath, $thumbAbsPath, $filter, $diContainer) {
    $container = $diContainer; // the DI container, if keeping this function in controller just use $container = $this
    $dataManager = $container->get('liip_imagine.data.manager');    // the data manager service
    $filterManager = $container->get('liip_imagine.filter.manager'); // the filter manager service
    $image = $dataManager->find($filter, $fullSizeImgWebPath);                    // find the image and determine its type
    $response = $filterManager->applyFilter($image, $filter);

    $thumb = $response->getContent();                               // get the image from the response

    $f = fopen($thumbAbsPath, 'w');                                        // create thumbnail file
    fwrite($f, $thumb);                                             // write the thumbnail
    fclose($f);                                                     // close the file
}

To use in controller e.g. CommonController or any other controller.

/**
 * Write a thumbnail image using the LiipImagineBundle
 * 
 * @param Document $fullSizeImgWebPath path where full size upload is stored e.g. uploads/attachments
 * @param string $thumbAbsPath full absolute path to attachment directory e.g. /var/www/project1/images/thumbs/
 * @param string $filter filter defined in config e.g. my_thumb
 */
public function writeThumbnail($fullSizeImgWebPath, $thumbAbsPath, $filter) {
    $container = $this->container;
    $dataManager = $container->get('liip_imagine.data.manager');    // the data manager service
    $filterManager = $container->get('liip_imagine.filter.manager'); // the filter manager service
    $image = $dataManager->find($filter, $fullSizeImgWebPath);                    // find the image and determine its type
    $response = $filterManager->applyFilter($image, $filter);

    $thumb = $response->getContent();                               // get the image from the response

    $f = fopen($thumbAbsPath, 'w');                                        // create thumbnail file
    fwrite($f, $thumb);                                             // write the thumbnail
    fclose($f);                                                     // close the file
}