3 from django import template
5 register = template.Library()
10 {% set_get_paramater param1='const_value',param2=,param3=variable %}
11 results with changes to query string:
12 param1 is set to `const_value' string
13 param2 is unset, if exists,
14 param3 is set to the value of variable in context
16 Using 'django.core.context_processors.request' is required.
21 class SetGetParameter(template.Node):
22 def __init__(self, values):
25 def render(self, context):
26 request = template.Variable('request').resolve(context)
27 params = request.GET.copy()
28 for key, value in self.values.items():
33 params[key] = template.Variable(value).resolve(context)
34 return '?%s' % params.urlencode()
38 def set_get_parameter(parser, token):
39 parts = split(r'\s+', token.contents, 2)
42 for pair in parts[1].split(','):
46 return SetGetParameter(values)