from django import template
from django.contrib.staticfiles.templatetags.staticfiles import static

register = template.Library()
@register.inclusion_tag('thumbnail.html')
def thumbnail(path, filename, description):
    """
        Returns the HTML to show an image including thumbnail.
        Assumes the thumbnail is called 'thumbnail_foo.jpg.png' if the image is called 'foo.jpg'.
        Path should be relative inside static root.
        Description is used for alt-text and mouseover.
    """
    return {
        'path': static('') + path,
        'filename': filename,
        'description': description,
    }