* Link: http://www.drudexsoftware.com/
* License: GPLv2
* Description: Allows admin to delete many images at once through Board Admin.
* Documentation:
*
*/
//todo: removal by tag returns 1 less image in test for some reason, actually a combined search doesn't seem to work for shit either
class BulkRemove extends Extension {
public function onPageRequest(PageRequestEvent $event) {
global $user;
if($event->page_matches("bulk_remove") && $user->is_admin() && $user->check_auth_token()) {
if ($event->get_arg(0) == "confirm") $this->do_bulk_remove();
else $this->show_confirm();
}
}
public function onAdminBuilding(AdminBuildingEvent $event) {
global $page;
$html = "Be extremely careful when using this!
Once an image is removed there is no way to recover it so it is recommended that
you first take when removing a large amount of images.
Note: Entering both an ID range and tags will only remove images between the given ID's that have the given tags.
".make_form(make_link("bulk_remove"))."
";
$page->add_block(new Block("Bulk Remove", $html));
}
// returns a list of images to be removed
private function determine_images()
{
// set vars
$images_for_removal = array();
$error = "";
$min_id = $_POST['remove_id_min'];
$max_id = $_POST['remove_id_max'];
$tags = $_POST['remove_tags'];
// if using id range to remove (comined removal with tags)
if ($min_id != "" && $max_id != "")
{
// error if values are not correctly entered
if (!is_numeric($min_id) || !is_numeric($max_id) ||
intval($max_id) < intval($min_id))
$error = "Values not correctly entered for removal between id.";
else { // if min & max id are valid
// Grab the list of images & place it in the removing array
foreach (Image::find_images(intval($min_id), intval($max_id)) as $image)
array_push($images_for_removal, $image);
}
}
// refine previous results or create results from tags
if ($tags != "")
{
$tags_arr = explode(" ", $_POST['remove_tags']);
// Search all images with the specified tags & add to list
foreach (Image::find_images(1, 2147483647, $tags_arr) as $image)
array_push($images_for_removal, $image);
}
// if no images were found with the given info
if (count($images_for_removal) == 0)
$error = "No images selected for removal";
//var_dump($tags_arr);
return array(
"error" => $error,
"images_for_removal" => $images_for_removal);
}
// displays confirmation to admin before removal
private function show_confirm()
{
global $page;
// set vars
$determined_imgs = $this->determine_images();
$error = $determined_imgs["error"];
$images_for_removal = $determined_imgs["images_for_removal"];
// if there was an error in determine_images()
if ($error != "") {
$page->add_block(new Block("Cannot remove images", $error));
return;
}
// generates the image array & places it in $_POST["bulk_remove_images"]
$_POST["bulk_remove_images"] = $images_for_removal;
// Display confirmation message
$html = make_form(make_link("bulk_remove")).
"Are you sure you want to PERMANENTLY remove ".
count($images_for_removal) ." images?
";
$page->add_block(new Block("Confirm Removal", $html));
}
private function do_bulk_remove()
{
global $page;
// display error if user didn't go through admin board
if (!isset($_POST["bulk_remove_images"])) {
$page->add_block(new Block("Bulk Remove Error",
"Please use Board Admin to use bulk remove."));
}
//
$image_arr = $_POST["bulk_remove_images"];
}
}