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<?php
/**
* Tidypics Delete Action for Images and Albums
*
*/
// must be logged in
gatekeeper();
$forward_url = 'pg/photos/world'; // by default forward to world photos
$guid = (int) get_input('guid');
$entity = get_entity($guid);
if (!$entity) { // unable to get Elgg entity
register_error(elgg_echo("tidypics:deletefailed"));
forward($forward_url);
}
if (!$entity->canEdit()) { // user doesn't have permissions
register_error(elgg_echo("tidypics:deletefailed"));
forward($forward_url);
}
$subtype = $entity->getSubtype();
$container = get_entity($entity->container_guid);
if ($subtype != 'image' && $subtype != 'album') { // how did we even get here?
register_error(elgg_echo("tidypics:deletefailed"));
forward($forward_url);
}
$owner_guid = 0; // group or user
if ($subtype == 'image') { //deleting an image
$album = get_entity($entity->container_guid);
$owner_guid = $album->container_guid;
$forward_url = $container->getURL(); //forward back to album after deleting pictures
$images = array($entity);
// plugins can register to be told when a Tidypics image has been deleted
trigger_elgg_event('delete', 'tp_image', $entity);
} else { //deleting an album
$owner_guid = $entity->container_guid;
$forward_url = 'pg/photos/owned/' . $container->username;
//get all the images from this album as long as less than 999 images
$images = get_entities("object", "image", $guid, '', 999);
// plugins can register to be told when a Tidypics album has been deleted
trigger_elgg_event('delete', 'tp_album', $entity);
}
// make sure we decrease the repo size for the size quota
$image_repo_size_md = get_metadata_byname($owner_guid, "image_repo_size");
$image_repo_size = (int)$image_repo_size_md->value;
//loop through all images and delete them
foreach ($images as $im) {
$thumbnail = $im->thumbnail;
$smallthumb = $im->smallthumb;
$largethumb = $im->largethumb;
if ($thumbnail) { //delete standard thumbnail image
$delfile = new ElggFile();
$delfile->owner_guid = $im->getOwner();
$delfile->setFilename($thumbnail);
$delfile->delete();
}
if ($smallthumb) { //delete small thumbnail image
$delfile = new ElggFile();
$delfile->owner_guid = $im->getOwner();
$delfile->setFilename($smallthumb);
$delfile->delete();
}
if ($largethumb) { //delete large thumbnail image
$delfile = new ElggFile();
$delfile->owner_guid = $im->getOwner();
$delfile->setFilename($largethumb);
$delfile->delete();
}
if ($im) {
$image_repo_size -= $im->size();
if (!$im->delete()) {
if ($subtype=='image') {
register_error(elgg_echo("tidypics:deletefailed")); //unable to delete object
}
} else {
if ($subtype=='image') {
system_message(elgg_echo("tidypics:deleted")); //successfully deleted object
}
}
} //end delete actual image file
} //end looping through each image to delete it
//now that all images have been deleted, delete the album
if ($subtype == 'album') {
//delete the album's directory manually; first create a temp file to get the directory path
$tmpfile = new ElggFile();
$tmpfile->setFilename('image/' . $guid . '/._tmp_del_tidypics_album_');
$tmpfile->subtype = 'image';
$tmpfile->container_guid = $guid;
$tmpfile->open("write");
$tmpfile->write('');
$tmpfile->close();
$tmpfile->save();
$albumdir = eregi_replace('/._tmp_del_tidypics_album_', '', $tmpfile->getFilenameOnFilestore());
$tmpfile->delete();
if (is_dir($albumdir)) {
rmdir($albumdir);
}
//delete album object from database
if (!$entity->delete()) {
register_error(elgg_echo("tidypics:deletefailed")); //unable to delete object
} else {
system_message(elgg_echo("tidypics:deleted")); //successfully deleted object
}
} //end of delete album
create_metadata($owner_guid, "image_repo_size", $image_repo_size, 'integer', $owner_guid);
forward($forward_url);
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