icons.py

import os
from django import template
from django.utils.safestring import mark_safe

register = template.Library()

ICON_PATH = [os.path.join('icons', 'led-icons'), os.path.join('icons', 'clever_icons') ]
ALIASES = {
        'add':'add-icon',
        'edit':'pencil',
        'delete':'cross',
        'archive':'box',
        }
def get_icon_url(icon_name):
    icon_file = ALIASES.get( icon_name, icon_name) + ".png"
    for icon_path in ICON_PATH:
        test_path = os.path.join( settings.MEDIA_ROOT, icon_path, icon_file )
        if os.path.exists( test_path ):
            icon_url = os.path.join(settings.MEDIA_URL, icon_path, icon_file )
            return icon_url
    icon_url = ''
    return icon_url

@register.simple_tag
def icon_img( icon_name, alt=None, href=False):
    icon_url = get_icon_url(icon_name)
    if href:
        return icon_url
    if not alt:
        return mark_safe( "<img class=\"icon\" src=\"%s\" alt=\"%s\"/>"%( icon_url, icon_name) )
    else:
        return mark_safe( "<img class=\"icon\" src=\"%s\" alt=\"%s\"/>"%( icon_url, alt) )