- Author:
- deadwisdom
- Posted:
- June 1, 2009
- Language:
- Python
- Version:
- 1.0
- Score:
- 2 (after 2 ratings)
Adds a templatetag that works like an if block, but . The one and only argument is a float that reflects the percentage chance. It defaults to .2, %20.
{% sometimes %} <img src='spy_behind_sniper.jpg'/> {% else %} <img src='sniper.jpg'/> {% endsometimes %}
-- or --
{% sometimes .001 %} You win! {% else %} Sorry, not a winner. Play again! {% endsometimes %}
-- or --
{% sometimes .5 %} This shows up half the time. {% endsometimes %}
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 | import random
from django.template.defaulttags import register, Node, NodeList
class Sometimes(Node):
def __init__(self, parser, token):
args = token.contents.split()
if len(args) == 1:
self.weight = .2
elif len(args) == 2:
self.weight = float(args[1])
else:
raise TemplateSyntaxError("Invalid arguments to 'sometimes': %s" % args)
self.options = NodeList()
while True:
option = parser.parse( ('else', 'endsometimes') )
token = parser.next_token()
self.options.append(option)
if token.contents == 'else':
continue
else:
parser.delete_first_token()
break
def render(self, context):
if random.random() <= self.weight:
return self.options[0].render(context)
else:
return self.options[1].render(context)
register.tag("sometimes", Sometimes)
|
More like this
- Template tag - list punctuation for a list of items by shapiromatron 8 months, 3 weeks ago
- JSONRequestMiddleware adds a .json() method to your HttpRequests by cdcarter 9 months ago
- Serializer factory with Django Rest Framework by julio 1 year, 3 months ago
- Image compression before saving the new model / work with JPG, PNG by Schleidens 1 year, 4 months ago
- Help text hyperlinks by sa2812 1 year, 5 months ago
Comments
Please login first before commenting.