Accept template tags in Django Flatpages

admin — Sun, 20 Jun 2010 18:23:00 +0000

You need to use template tags in Django FlatPages application ?

Here is a solution:

First create an evaluate_tag.py file in your templatetags directory with the following content:


[python]
from django import template

register = template.Library()

@register.tag(name="evaluate")
def do_evaluate(parser, token):
    """
    tag usage {% evaluate object.textfield %}
    """
    try:
        tag_name, variable = token.split_contents()
    except ValueError:
        raise template.TemplateSyntaxError, "%r tag requires a single argument" % token.contents.split()[0]
    return EvaluateNode(variable)

class EvaluateNode(template.Node):
    def __init__(self, variable):
        self.variable = template.Variable(variable)

    def render(self, context):
        try:
            content = self.variable.resolve(context)
            t = template.Template(content)
            return t.render(context)
        except template.VariableDoesNotExist, template.TemplateSyntaxError:
            return 'Error rendering', self.variable
[/python]

Next, modifiy your flatpages template file to use this template tag:

[html]

“http://www.w3.org/TR/REC-html40/loose.dtd”>

{{ flatpage.title }}

{% load evaluate_tag %}
{% evaluate flatpage.content %}

[/html]

Now, you can use template tags in your flatpages !

Django Dev » templatetag

Accept template tags in Django Flatpages