delete_on_update does not remove the original file about vichuploaderbundle HOT 2 OPEN

I tried on a project of mine and indeed the old file is not removed.
Sadly, I also failed to understand the reason, nor I can currently understand how your proposed listener can work. It's still calling the clean method and so the check is still against the same types, right?

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Sorry for the late answer.

Actually, the listener I propose does work because when I upload a new image, it will be stored as an UploadedFile in the property $imageFile of my entity Article.

When executing handler->clean() method, it will check if the current $object (Article in my case) has an UploadedFile:

Here, $mapping->getFile($obj); will read the property $imageFile and thus will return true.

Then, when executing the remove method, the script will read the value of $imageName (not $imageFile) because the remove method take the field name to be removed as an argument:

And I call the clean method like this in my custom listener: $this->handler->clean($event->getObject(), 'imageFile');, so what will be removed is the "old" image.

Finally, the UploadedFile will be converted into a File instance, and $imageName will now have the new file name.

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