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ContentType template filter

Author:
asfaltboy
Posted:
December 31, 2013
Language:
Python
Version:
1.5
Score:
1 (after 1 ratings)

Custom template filter to retrieve a content type of a given model instance. Useful for ModelForms which want to set the content_type field (i.e: GenericForeignKey).

A usage example:

{% load helpers %}
{% with instance|content_type as ctype %}
    <input type="hidden" name="content_type" value="{{ ctype.pk }}">
{% endwith %}

Original idea from this stackoverflow answer

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# templatetags/helpers.py
from django import template
from django.contrib.contenttypes.models import ContentType

register = template.Library()

@register.filter
def content_type(obj):
    if not obj:
        return False
    return ContentType.objects.get_for_model(obj)

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