function perform()
{
// first of all, fetch the resource
$this->_resourceId = $this->_request->getValue("resourceId");
$resources = new GalleryResources();
$resource = $resources->getResource($this->_resourceId, $this->_blogInfo->getId());
// check if it was loaded ok
if (!$resource) {
$this->_view = new AdminResourcesListView($this->_blogInfo);
$this->_view->setErrorMessage($this->_locale->tr("error_loading_resource"));
$this->setCommonData();
return false;
}
// if so, continue... first by checking if the resource is an image or not
// because if not, then there is no point in generating a thumbnail of it!
if (!$resource->isImage()) {
$this->_view = new AdminResourcesListView($this->_blogInfo);
$this->_view->setErrorMessage($this->_locale->tr("error_resource_is_not_an_image"));
}
$previewHeight = $this->_config->getValue("thumbnail_height");
$previewWidth = $this->_config->getValue("thumbnail_width");
$previewKeepAspectRatio = $this->_config->getValue("thumbnails_keep_aspect_ratio");
// build the filename
$fileNameParts = explode(".", $resource->getFileName());
$fileExt = strtolower($fileNameParts[count($fileNameParts) - 1]);
$fileName = $resource->getOwnerId() . "-" . $resource->getId() . "." . $fileExt;
// and start the resizing process
$resourceStorage = new GalleryResourceStorage();
$resizer = new GalleryResizer($resourceStorage->getResourcePath($resource));
$resourceStorage->checkPreviewsStorageFolder($resource->getOwnerId());
$outFile = $resourceStorage->getPreviewsFolder($resource->getOwnerId()) . $fileName;
// and finally, we can generate the preview!
$result = $resizer->generate($outFile, $previewHeight, $previewWidth, $previewKeepAspectRatio);
$previewFormat = $resizer->getThumbnailFormat();
$resource->setThumbnailFormat($previewFormat);
$resources->updateResource($resource);
if (!$result) {
$this->_view = new AdminResourcesListView($this->_blogInfo);
$this->_view->setErrorMessage($this->_locale->tr("error_generating_resource_preview"));
} else {
$previewHeight = $this->_config->getValue("medium_size_thumbnail_height");
$previewWidth = $this->_config->getValue("medium_size_thumbnail_width");
// and start the resizing process
$resourceStorage = new GalleryResourceStorage();
$resizer = new GalleryResizer($resourceStorage->getResourcePath($resource));
$resourceStorage->checkMediumSizePreviewsStorageFolder($resource->getOwnerId());
$outFile = $resourceStorage->getMediumSizePreviewsFolder($resource->getOwnerId()) . $fileName;
// and finally, we can generate the preview!
$result = $resizer->generate($outFile, $previewHeight, $previewWidth, $previewKeepAspectRatio);
$previewFormat = $resizer->getThumbnailFormat();
$resource->setThumbnailFormat($previewFormat);
$resources->updateResource($resource);
if (!$result) {
$this->_view = new AdminResourcesListView($this->_blogInfo);
$this->_view->setErrorMessage($this->_locale->tr("error_generating_resource_medium"));
} else {
$this->_view = new AdminEditResourceView($this->_blogInfo);
$this->_view->setSuccessMessage($message = $this->_locale->tr("resource_preview_generated_ok"));
$this->_view->setValue("resourceDescription", $resource->getDescription());
$this->_view->setValue("albumId", $resource->getAlbumId());
$this->_view->setValue("resource", $resource);
}
}
$this->setCommonData();
return true;
}
