django template system, calling a function inside a model

Question

I want to call a function from my model at a template such as:

class ChannelStatus(models.Model):
 ..............................
 .........................         


        

Answer 1

For > 1 argument, use simple tags:

@register.simple_tag
def related_deltas(obj, epk, second_arg):
    return obj.get_related_deltas(epk, second_arg)

Template:

{% for i in channel_status_list %}
  {% related_deltas i 3 4 %}
{% endfor %}

(Note the change of syntax from {{ to {%)

Can take positional parameters (e.g. related_deltas i 3 second_arg=4 debug=true).