Minimal template tag for avoiding django-versatileimagefield crashes with invalid images

safeimage.py

from django import template
from django.template.base import Variable


register = template.Library()


@register.simple_tag(takes_context=True)
def safeimage(context, imagefile, spec):
    """
    Usage::

        {% load safeimage %}
        {% safeimage instance.image 'thumbnail.900x900' %}
        {# Instead of {{ instance.image.thumbnail.900x900 }} #}
    """
    var = Variable('imagefile.%s' % spec)
    with context.push({'imagefile': imagefile}):
        try:
            return var.resolve(context)
        except Exception as exc:
            # TODO Add logging here.
            print(exc)
    return imagefile.url