Z
from django import template
register = template.Library()
@register.simple_tag(takes_context=True)
def param_replace(context, **kwargs):
d = context['request'].GET.copy()
for k, v in kwargs.items():
d[k] = v
for k in [k for k, v in d.items() if not v]:
del d[k]
return d.urlencode()
