hi,
<br ><br >
<br ><br >i would like to modify the ImageGalleryAlbum.php file.
<br ><br >what do i have to do when i don't want to touch the original file?
<br ><br >
<br ><br >thanks

Very soon I'll be adding member properties $image_class, and $album_class to the ImageGallery module, which will make this a lot easier. For now you'll have to use a DataObjectDecorator for that.

i don't get it.
i made a new DataObjectDecorator

class DODImageGalleryAlbum extends DataObjectDecorator
{
public function FormattedCoverImage()
{
if($this->landscape()){
return $this->CoverImage()->SetWidth($this->ImageGalleryPage()->CoverImageWidth);
}else{
return $this->CoverImage()->SetHeight($this->ImageGalleryPage()->CoverImageWidth);
}
}
}

in my _config.php i added:

Object::add_extension('ImageGalleryAlbum', 'DODImageGalleryAlbum');

but it doesn't work. what is wrong?

First, you should use DataObject::add_extension, since ImageGalleryAlbum is a DataObject. Second, I don't know that you can overload methods in a decorator. You'll probably have to call that function something different, like "MyFormattedCoverImage" and call it that way on the template.

$this->CoverImage() won't work in a decorator, remember. You'll have to use $this->owner->CoverImage().

thanks a lot, that did the trick :)

The ability to use custom classes has been added to the ImageGallery. See the post in the DataObjectManager forum.