Adding images from an external gallery to a SilverStripe site via a BuildTask - silverstripe

Question

I'm making a Silverstripe build task to get many images from an external gallery, and create/upload them into the /assets/images/gallery folder with the necessary database links to the GalleryPage.
So I load the list of Urls, display the images to the browser, now how do I save an image into the assets folder with the necessary GalleryPage database links?
class ImportGalleryTask extends BuildTask {
public function writeImage($data) {
//$data->Title
//$data->Filename
//$data->Url
//this is the external url that I can output as an image to the browser
//
// folder to save image is 'assets/images/gallery'
//
// ? save into folder and database and associate to PageImageBelongsToID ?
}
}

Answer 1

You can use copy to copy a remote file to your local filesystem. PHP must be configured to support allow_url_fopen though.
So, your resulting function might look like this:
/**
* #param $data
* #return null|Image return written Image object or `null` if failed
*/
public function writeImage($data)
{
// The target folder for the image
$folder = Folder::find_or_make('images/gallery');
// assuming that $data->Filename contains just the file-name without path
$targetPath = $folder->getFullPath() . $data->Filename;
// Check if an image with this name already exists
// ATTENTION: This will overwrite existing images!
// If you don't want this, you need to implement this differently
if(
file_exists($targetPath) &&
$image = Image::get()->where(array(
'"Name" = ?' => $data->Filename,
'"ParentID" = ?' => $folder->ID
))->first()
){
// just copy the new file over…
copy($data->Url, $targetPath);
// … and delete all cached images
$image->deleteFormattedImages();
// and we're done
return $image;
}
// Try to copy the file
if (!copy($data->Url, $targetPath)) {
return null;
}
// Write the file to the DB
$image = Image::create(array(
'Name' => $data->Filename,
'ParentID' => $folder->ID,
'Filename' => $folder->getRelativePath() . $data->Filename
));
$image->write();
return $image;
}