This is an extension of the snippet http://www.djangosnippets.org/snippets/1302/ to make it a bit more flexible and been able pass more than one parameter to our "Partial Template". To use it you can
{% partial_template template_name param1:variable1 param2:variable2 ... %}
or:
{% partial_template partials/mini_template.html item:data1 var2:"False" var3:"2*2" %}
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 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 | from django.template import Library, Node, loader, resolve_variable, \
TemplateSyntaxError
from django.template.context import Context
register = Library()
class PartialTemplateNode(Node):
"""
Partial template templatetag to pass simple parameters formatted like:
{% partial_template template_name:template_name param1:variable1 param2:variable2 param4:"True" param5:22 %}
Based on other two django snippets:
http://www.djangosnippets.org/snippets/297/
http://www.djangosnippets.org/snippets/1302/
"""
def __init__(self, template_name, params):
self.template_name = template_name
self.params = params
def render(self, context):
for k,v in self.params.items():
if v[0] == '\"' or v[0] == '\'':
try:
# Trying to evaluate the python code in quotes (like "True")
self.params[k] = eval(v[1:-1])
continue
except:
pass
self.params[k] = resolve_variable(v, context)
template = loader.get_template('%s' % (self.template_name,))
template_context = Context(self.params)
return template.render(template_context)
@register.tag
def partial_template(parser, token):
items = token.split_contents()
if len(items)<3:
raise TemplateSyntaxError('Missing template tag arguments. '\
'At least 2 arguments needed')
template_name = items[1]
parameters = {}
for item in items[2:]:
param, value = item.split(':')
param = param.strip()
value = value.strip()
parameters[param] = value
return PartialTemplateNode(template_name, parameters)
|
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Comments
templates are supposed to be safe. so don't use eval(v[1:-1])
second, why not add parent content to partial by default?
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