Ross Burton wrote:
> then in the view:
>
> {% for paper in object_list|dictsort:"title" %}
> {% if paper.has_voted( TODO ) %}
> <!-- todo: set different css class -->
Not related to your question, but this is called 'template' in Django.
'View' means a different thing (a controller).
> I then discovered that you can't pass arguments to methods in
> templates, so I can't ask the model if the current user has voted.
I'm sure someone will suggest something less scary for a beginner but I
can now only come up with such a custom template tag:
class IfVotedNode(template.Node):
def __init__(self, paper_expr, node_list):
self.paper_expr, self.node_list = obj_expr, node_list
def render(self, context):
paper = self.paper_expr.resolve(context)
if paper.has_voted(context['user']):
return self.node_list.render(context)
else:
return ''
@register.tag
def ifvoted(parser, token):
bits = token.contents.split()
if len(bits) != 2:
raise template.TemplateSyntaxError, '"%s" takes 1 parameter ' %
bits[0]
node_list = parser.parse('end' + bits[0])
parser.delete_first_token()
return IfVotedNode(parser.compile_filter(bits[1]),node_list)
It's then used like this:
{% ifvoted paper %}...{% endifvoted %}
Docs on creating custom template tags are here:
http://www.djangoproject.com/documentation/templates_python/#writing-custom-template-tags
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