elevate ngg_delete_picture hook

  • Resolved TC McCarthy

    (@tcmccarthy1)


    8 years, 10 months ago

    In products/photocrati_nextgen/modules/ngglegacy/admin/manage.php there is a method called processor() which calls ngg_delete_picture AFTER $mapper->destroy. The problem is, I need to capture data about the image before it’s deleted, but the hook is being fired too late. I see that there have been several requests for this — can you please address? I’ve reworked the whole method for you below.

    function processor() {

		global $wpdb, $ngg, $nggdb;

		// Delete a picture
		if ($this->mode == 'delpic') {
                       do_action('ngg_delete_picture', $this->pid);
			//TODO:Remove also Tag reference
			check_admin_referer('ngg_delpicture');
			$image = $nggdb->find_image( $this->pid );
			if ($image) {
				if ($ngg->options['deleteImg']) {
                    $storage = $storage  = C_Gallery_Storage::get_instance();
                    $storage->delete_image($this->pid);
				}
				$mapper = C_Image_Mapper::get_instance();
				$result = $mapper->destroy($this->pid);

                if ($result)
                    nggGallery::show_message( __('Picture','nggallery').' \''.$this->pid.'\' '.__('deleted successfully','nggallery') );
            }

		 	$this->mode = 'edit'; // show pictures

		}

		// Recover picture from backup
		if ($this->mode == 'recoverpic') {

			check_admin_referer('ngg_recoverpicture');

            // bring back the old image
			nggAdmin::recover_image($this->pid);

            nggGallery::show_message(__('Operation successful. Please clear your browser cache.',"nggallery"));

		 	$this->mode = 'edit'; // show pictures

		}

		// will be called after a ajax operation
		if (isset ($_POST['ajax_callback']))  {
				if ($_POST['ajax_callback'] == 1)
					nggGallery::show_message(__('Operation successful. Please clear your browser cache.',"nggallery"));
		}

		// show sort order
		if ( isset ($_POST['sortGallery']) )
			$this->mode = 'sort';

		if ( isset ($_GET['s']) )
			$this->search_images();

	}

    https://www.ads-software.com/plugins/nextgen-gallery/

Viewing 4 replies - 1 through 4 (of 4 total)
  • Plugin Contributor photocrati

    (@photocrati)

    @tcmccarthy1 – Thanks for the refactor of the method but I think we may need to better understand why this is an issue in your specific case … and we may take a different approach to how this may be handled / addressed.

    Would you be able to supply any additional details on the process you are trying to accomplish and/or the details you need?

    – Cais.

    Plugin Contributor photocrati

    (@photocrati)

    @tcmccarthy1 – We have reviewed your idea as is, and have made two adjustments to the hook. We have committed a change that should be in the next release of NextGEN Gallery where the hook has been moved to right after the if ( $image ) conditional; and, we have added a second parameter $image so one would not need to make an additional query for it … just in case.

    Thanks for the feedback!

    The new conditional statement will look like this:

    if ($image) {
	do_action('ngg_delete_picture', $this->pid, $image);
	if ($ngg->options['deleteImg']) {
                $storage = $storage  = C_Gallery_Storage::get_instance();
                $storage->delete_image($this->pid);
	}
	$mapper = C_Image_Mapper::get_instance();
	$result = $mapper->destroy($this->pid);

         if ($result)
              nggGallery::show_message( __('Picture','nggallery').' \''.$this->pid.'\' '.__('deleted successfully','nggallery') );
}

    Thanks, again!

    – Cais.

    Thread Starter TC McCarthy

    (@tcmccarthy1)

    Thank you! Good thinking on the conditional, I hacked it in quickly for demonstration purposes in our post but yes you are right, limiting queries is always a good thing.

    To answer the question in your initial post, my use case is that I am extending my tcS3 plugin to work with nextgen. I am using your hooks to make it seamless — when any user adds or deletes an image using the existing methods provided by Nextgen I want those behaviors to be repeated on their S3 bucket. The plugin will also modify the URL so that images uploaded to the user’s server to be added to a NexGen gallery get mirrored to S3 and read from it. The problem I had was, the mirroring relied on data in the database but the image was being removed from the database before The delete hook fired to run the delete operation on the S3 bucket, so my code did not know what object to delete.

    Your code above should work. I’ll let you know if I hit another snag.

    Thanks again!

    Plugin Contributor photocrati

    (@photocrati)

    @tcmccarthy1 – That sounds very interesting … it will be good to know how you progress with this idea.

    Thanks!

    – Cais.

Viewing 4 replies - 1 through 4 (of 4 total)
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