plflush.py 文件源码

def create_cache(sizes, options):
    """
    Clears the cache for the given files
    """
    size_list = [size.strip(' ,') for size in sizes]

    if len(size_list) < 1:
        sizes = PhotoSize.objects.all()
    else:
        sizes = PhotoSize.objects.filter(name__in=size_list)

    if not len(sizes):
        raise CommandError('No photo sizes were found.')

    print('Flushing cache...')

    for cls in ImageModel.__subclasses__():
        for photosize in sizes:
            print('Flushing %s size images' % photosize.name)
            for obj in cls.objects.all():
                obj.remove_size(photosize)